MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor General Description The MAX6173-MAX6177 are low-noise, high-precision voltage references. The devices feature a proprietary temperature-coefficient curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low 3ppm/C temperature coefficient and excellent 0.06% initial accuracy. The MAX6173-MAX6177 provide a TEMP output where the output voltage is proportional to the die temperature, making the devices suitable for a wide variety of temperature-sensing applications. The devices also provide a TRIM input, allowing fine trimming of the output voltage with a resistive divider network. Low temperature drift and low noise make the devices ideal for use with high-resolution A/D or D/A converters. The MAX6173-MAX6177 provide accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V reference voltages and accept input voltages up to +40V. The devices draw 320A (typ) of supply current and source 30mA or sink 2mA of load current. The MAX6173-MAX6177 use bandgap technology for low-noise performance and excellent accuracy. The MAX6173-MAX6177 do not require an output bypass capacitor for stability, and are stable with capacitive loads up to 100F. Eliminating the output bypass capacitor saves valuable board area in space-critical applications. The MAX6173-MAX6177 are available in an 8-pin SO package and operate over the automotive (-40C to +125C) temperature range. Features o Wide (VOUT + 2V) to +40V Supply Voltage Range o Excellent Temperature Stability: 3ppm/C (max) o Tight Initial Accuracy: 0.05% (max) o Low Noise: 3.8VP-P (typ at 2.5V Output) o Sources up to 30mA Output Current o Low Supply Current: 450A (max at +25C) o Linear Temperature Transducer Voltage Output o +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output Voltages o Wide Operating Temperature Range: -40C to +125C o No External Capacitors Required for Stability o Short-Circuit Protected Typical Operating Circuit (VOUT + 2V) TO 40V INPUT IN * MAX6173-MAX6177 TEMP * TRIM GND *OPTIONAL. Applications ADCs Voltage Regulators DACs Threshold Detectors Digital Voltmeters REFERENCE OUTPUT OUT * Pin Configuration appears at end of data sheet. Ordering Information/Selector Guide TEMP RANGE PINPACKAGE OUTPUT VOLTAGE (V) TEMPERATURE COEFFICIENT (ppm/C) -40C TO +125C INITIAL ACCURACY (%) MAX6173AASA+ -40C to +125C 8 SO MAX6173BASA+ -40C to +125C 8 SO 2.500 3 0.06 2.500 10 MAX6174AASA+ -40C to +125C 0.10 8 SO 4.096 3 0.06 MAX6174BASA+ MAX6174BASA/V+ -40C to +125C 8 SO 4.096 10 0.10 -40C to +125C 8 SO 4.096 10 0.10 MAX6175AASA+ -40C to +125C 8 SO 5.000 3 0.06 MAX6175BASA+ -40C to +125C 8 SO 5.000 10 0.10 MAX6175BASA/V+ -40C to +125C 8 SO 5.000 10 0.10 MAX6176AASA+ -40C to +125C 8 SO 10.000 3 0.05 MAX6176BASA+ -40C to +125C 8 SO 10.000 10 0.10 MAX6177AASA+ -40C to +125C 8 SO 3.300 3 0.06 MAX6177BASA+ -40C to +125C 8 SO +Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. 3.300 10 0.10 PART For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maximintegrated.com. 19-3249; Rev 5; 9/14 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +42V OUT, TRIM, TEMP to GND...........................-0.3V to (VIN + 0.3V) Output Short Circuit to GND .....................................................5s Continuous Power Dissipation (TA = +70C) 8-Pin SO (derate 5.9mW/C above +70C) ..................471mW Operating Temperature Range ........................-40C to +125C Junction Temperature .....................................................+150C Storage Temperature Range ............................-65C to +150C Lead Temperature (soldering, 10s) ................................+300C Soldering Temperature (reflow) ......................................+260C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS--MAX6173 (VOUT = 2.5V) (VIN = +5V, TA = -40C to +125C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6173A (0.06%) 2.4985 2.5 2.5015 MAX6173B (0.1%) 2.4975 2.5 2.5025 3 6 UNITS OUTPUT Output Voltage VOUT No load, TA = +25C Output Adjustment Range VTRIM RPOT = 10k Output-Voltage Temperature Coefficient (Note 2) TCVOUT TA = -40C to +125C Line Regulation (Note 3) Load Regulation (Note 3) Output Short-Circuit Current VOUT / VIN 4.5V VIN 40V VOUT / IOUT ISC Temperature Hysteresis (Note 4) VOUT/ cycle Long-Term Stability VOUT/ time V % MAX6173AASA 1.5 3 MAX6173BASA 3 10 ppm/C TA = +25C 0.6 5 TA = -40C to +125C 0.8 10 2 10 Sourcing: 0 IOUT 10mA TA = +25C TA = -40C to +125C 2 15 Sinking: -0.6mA IOUT 0 TA = +25C 50 500 TA = -40C to +125C 90 900 OUT shorted to GND 60 OUT shorted to IN 3 1000 hours at TA = +25C ppm/V ppm/mA mA 120 ppm 50 ppm DYNAMIC Noise Voltage Turn-On Settling Time eOUT tR f = 0.1Hz to 10Hz 3.8 VP-P f = 10Hz to 1kHz 6.8 VRMS To VOUT = 0.1% of final value, COUT = 50pF 150 s INPUT Supply Voltage Range VIN Guaranteed by line regulation test Quiescent Supply Current IIN No load TA = +25C 4.5 40.0 300 TA = -40C to +125C 450 600 V A TEMP OUTPUT TEMP Output Voltage TEMP Temperature Coefficient 2 VTEMP 570 mV TCTEMP 1.9 mV/C Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS--MAX6177 (VOUT = 3.3V) (VIN = +10V, TA = -40C to +125C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6177A (0.06%) 3.2980 3.3 3.3020 MAX6177B (0.1%) 3.2967 3.3 3.3033 3 6 UNITS OUTPUT Output Voltage VOUT No load, TA = +25C Output Adjustment Range VTRIM RPOT = 10k Output-Voltage Temperature Coefficient (Note 2) TCVOUT TA = -40C to +125C Line Regulation (Note 3) VOUT / VIN Load Regulation (Note 3) Output Short-Circuit Current VOUT / IOUT ISC Temperature Hysteresis (Note 4) VOUT/ cycle Long-Term Stability VOUT/ time 5.3V VIN 40V V % MAX6177AASA 1.5 3 MAX6177BASA 3 10 ppm/C TA = +25C 0.6 5 TA = -40C to +125C 0.8 10 2 10 Sourcing: 0 IOUT 10mA TA = +25C TA = -40C to +125C 2 15 Sinking: -0.6mA IOUT 0 TA = +25C 50 500 TA = -40C to +125C 90 900 OUT shorted to GND 60 OUT shorted to IN 3 ppm/V ppm/ mA mA 120 ppm 50 ppm 5 VP-P f = 10Hz to 1kHz 9.3 VRMS To VOUT = 0.1% of final value, COUT = 50pF 180 s 1000 hours at TA = +25C DYNAMIC Noise Voltage Turn-On Settling Time eOUT tR f = 0.1Hz to 10Hz INPUT Supply Voltage Range Quiescent Supply Current VIN IIN Guaranteed by line regulation test No load TA = +25C 5.3 40.0 320 TA = -40C to +125C 500 650 V A TEMP OUTPUT TEMP Output Voltage TEMP Temperature Coefficient Maxim Integrated VTEMP 630 mV TCTEMP 2.1 mV/C 3 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS--MAX6174 (VOUT = 4.096V) (VIN = +10V, TA = -40C to +125C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT Output Voltage Output Adjustment Range VOUT VTRIM No load, TA = +25C TCVOUT TA = -40C to +125C Line Regulation (Note 3) VOUT/ VIN 6.1V VIN 40V Output Short-Circuit Current VOUT/ IOUT ISC Temperature Hysteresis (Note 4) VOUT/ cycle Long-Term Stability VOUT/ time 4.0935 4.096 4.0985 4.0919 4.096 4.1001 3 RPOT = 10k Output-Voltage Temperature Coefficient (Note 2) Load Regulation (Note 3) MAX6174A (0.06%) MAX6174B (0.1%) 6 % MAX6174AASA 1.5 3 MAX6174BASA 3 10 TA = +25C 0.6 5 TA = -40C to +125C 0.8 10 2 10 Sourcing: 0 IOUT 10mA TA = +25C TA = -40C to +125C 2 15 Sinking: -0.6mA IOUT 0 TA = +25C 50 500 TA = -40C to +125C 90 900 OUT shorted to GND 60 OUT shorted to IN 3 V ppm/C ppm/V ppm/mA mA 120 ppm 1000 hours at TA = +25C 50 ppm f = 0.1Hz to 10Hz 7 VP-P f = 10Hz to 1kHz 11.5 VRMS To VOUT = 0.1% of final value, COUT = 50pF 200 s DYNAMIC Noise Voltage Turn-On Settling Time eOUT tR INPUT Supply Voltage Range Quiescent Supply Current VIN IIN Guaranteed by line regulation test No load 6.1 TA = +25C 40.0 320 TA = -40C to +125C 500 650 V A TEMP OUTPUT TEMP Output Voltage TEMP Temperature Coefficient 4 VTEMP TCTEMP TA = +25C 475 TA = -40C to +125C 300 630 785 1130 2.1 mV mV/C Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS--MAX6175 (VOUT = 5.0V) (VIN = +15V, TA = -40C to +125C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX MAX6175A (0.06%) 4.9970 5.0 5.0030 MAX6175B (0.1%) 4.9950 5.0 5.0050 3 6 UNITS OUTPUT Output Voltage VOUT No load, TA = +25C Output Adjustment Range VTRIM RPOT = 10k Output-Voltage Temperature Coefficient (Note 2) TCVOUT TA = -40C to +125C Line Regulation (Note 3) VOUT / VIN Load Regulation (Note 3) VOUT / I OUT Output Short-Circuit Current I SC Temperature Hysteresis (Note 4) VOUT/ cycle Long-Term Stability VOUT/ time 7V VIN 40V Sourcing: 0 I OUT 10mA Sinking: -0.6mA I OUT 0 V % MAX6175AASA 1.5 3 MAX6175BASA 3 10 ppm/C TA = +25C 0.6 5 TA = -40C to +125C 0.8 10 10 TA = +25C 2 TA = -40C to +125C 2 15 TA = +25C 50 500 90 900 TA = -40C to +125C OUT shorted to GND 60 OUT shorted to IN 3 1000 hours at TA = +25C ppm/V ppm/mA mA 120 ppm 50 ppm DYNAMIC Noise Voltage Turn-On Settling Time e OUT tR f = 0.1Hz to 10Hz 9 VP-P f = 10Hz to 1kHz 14.5 VRMS To VOUT = 0.1% of final value, C OUT = 50pF 230 s INPUT Supply Voltage Range Quiescent Supply Current VIN I IN Guaranteed by line regulation test No load 7.0 TA = +25C 40.0 320 TA = -40C to +125C 550 700 V A TEMP OUTPUT TEMP Output Voltage TEMP Temperature Coefficient Maxim Integrated VTEMP TCTEMP TA = +25C 475 TA = -40C to +125C 300 630 785 1130 2.1 mV mV/C 5 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor ELECTRICAL CHARACTERISTICS--MAX6176 (VOUT = 10V) (VIN = +15V, TA = -40C to +125C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT Output Voltage VOUT No load, TA = +25C Output Adjustment Range VTRIM RPOT = 10k Output-Voltage Temperature Coefficient (Note 2) TCVOUT TA = -40C to +125C Line Regulation (Note 3) VOUT/ VIN Load Regulation (Note 3) Output Short-Circuit Current VOUT/ IOUT ISC Temperature Hysteresis (Note 4) VOUT/ cycle Long-Term Stability VOUT/ time 12V VIN 40V MAX6176A (0.05%) 9.9950 10.0 10.0050 MAX6176B (0.1%) 9.9900 10.0 10.0100 3 6 V % MAX6176AASA 1.5 3 MAX6176BASA 3 10 TA = +25C 0.6 5 TA = -40C to +125C 0.8 10 ppm/C Sourcing: 0 IOUT 10mA TA = +25C 2 10 TA = -40C to +125C 2 15 Sinking: -0.6mA IOUT 0 TA = +25C 50 500 TA = -40C to +125C 90 900 OUT shorted to GND 60 OUT shorted to IN 3 1000 hours at TA = +25C ppm/V ppm/mA mA 120 ppm 50 ppm DYNAMIC Noise Voltage Turn-On Settling Time eOUT tR f = 0.1Hz to 10Hz 18 VP-P f = 10Hz to 1kHz 29 VRMS To VOUT = 0.1% of final value, COUT = 50pF 400 s INPUT Supply Voltage Range VIN Guaranteed by line regulation test Quiescent Supply Current IIN No load TA = +25C 12.0 40.0 340 TA = -40C to +125C 550 700 V A TEMP OUTPUT TEMP Output Voltage TEMP Temperature Coefficient Note 1: Note 2: Note 3: Note 4: 6 VTEMP 630 mV TCTEMP 2.1 mV/C All devices are 100% production tested at TA = +25C and guaranteed by design over TA = TMIN to TMAX, as specified. Temperature coefficient is defined as VOUT divided by the temperature range. Line and load regulation specifications do not include the effects of self-heating. Thermal hysteresis is defined as the change in +25C output voltage before and after cycling the device from TMAX to TMIN. Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 4.096V) 10.001 4.097 4.0965 4.096 4.0955 4.095 50 75 100 4.094 125 TEMPERATURE (C) 0 25 50 75 TEMPERATURE (C) LOAD REGULATION vs. SOURCE CURRENT (VOUT = 2.5V) LOAD REGULATION vs. SOURCE CURRENT (VOUT = 4.096V) TA = -40C 0.25 TA = +25C 0 -0.25 TA = +125C 5 10 15 20 25 -25 0 TA = -40C -0.25 -0.25 0 0.5 1.0 SINK CURRENT (mA) Maxim Integrated 1.5 2.0 50 75 100 125 TA = +25C 0.25 TA = +125C 0 -0.25 TA = -40C -0.50 5 10 15 20 25 SOURCE CURRENT (mA) 0.5 0 30 5 10 15 20 25 LOAD REGULATION vs. SINK CURRENT (VOUT = 10V) toc5b 0.3 0.2 0.1 TA = +25C 0 -0.1 -0.2 -0.3 CLOAD = NO LOAD 2.0 0.5 1 1.5 SINK CURRENT (mA) 1.5 TA = -40C 1.0 TA = +125C 0.5 0 TA = +25C -0.5 -1.0 -0.5 0 30 SOURCE CURRENT (mA) 0.4 -0.4 -0.50 25 0.50 0 0 OUTPUT VOLTAGE CHANGE (mV) MAX6173 toc05 OUTPUT VOLTAGE CHANGE (mV) 0.25 0 LOAD REGULATION vs. SOURCE CURRENT (VOUT = 10V) TA = +25C LOAD REGULATION vs. SINK CURRENT (VOUT = 4.096V) TA = +125C -25 TEMPERATURE (C) -0.5 30 TA = +25C 0.50 -50 125 0.25 LOAD REGULATION vs. SINK CURRENT (VOUT = 2.5V) 0.75 100 THREE TYPICAL PARTS 9.993 toc3b SOURCE CURRENT (mA) 1.00 9.996 COUT = 0 -0.50 0 -50 0.5 OUTPUT VOLTAGE CHANGE (mV) 0.50 9.997 MAX6173 toc06 25 OUTPUT VOLTAGE CHANGE (mV) 0 9.998 9.994 CLOAD = NO LOAD OUTPUT VOLTAGE CHANGE (mV) -25 MAX6173 toc03 -50 9.999 9.995 4.0945 THREE TYPICAL PARTS 10.000 MAX6173 toc04 2.499 2.498 OUTPUT VOLTAGE CHANGE (mV) 10.002 OUTPUT VOLTAGE (V) 2.500 10.003 4.0975 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.501 toc1b 4.098 MAX6173 toc01 2.502 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 10V) MAX6173 toc02 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 2.5V) 2 0 0.5 1.0 1.5 2.0 SINK CURRENT (mA) 7 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) TA = +125C 40 20 0 5 10 15 20 25 TA = -10C 40 20 0 TA = +25C 30 35 TA = +125C CLOAD = NO LOAD -60 40 0 10 INPUT VOLTAGE (V) MAX6173 toc09 TA = -40C 1.5 TA = +25C 1.0 2.0 0.5 8 12 16 50 1.5 TA = +25C TA = +125C 16 20 4 8 12 16 2.0 36 40 TA = -40C 1.5 TA = +25C 1.0 TA = +125C 0 20 4 8 12 16 20 SOURCE CURRENT (mA) 0 PSRR vs. FREQUENCY -20 toc12a 0 MAX6173 toc12 -20 32 2.5 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 10V) MAX6173 toc11 0 28 MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. SOURCE CURRENT (VOUT = 10V) SOURCE CURRENT (mA) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 2.5V) 24 0.5 0 20 TA = +25C INPUT VOLTAGE (V) TA = -40C SOURCE CURRENT (mA) -10 VOUT = 4.096V -20 -30 -40 -60 -80 PSRR (dB) -40 PSRR (dB) PSRR (dB) 100 12 0.5 4 TA = -40C 150 40 toc9a 1.0 TA = +125C 0 TA = +125C 200 0 20 30 INPUT VOLTAGE (V) 2.5 DROPOUT VOLTAGE (V) DROPOUT VOLTAGE (V) 2.0 250 MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. SOURCING CURRENT (VOUT = 4.096V) MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. SOURCE CURRENT (VOUT = 2.5V) 2.5 TA = +100C -20 -40 TA = +25C 0 TA = -40C 60 MAX6173 toc10 60 80 OUTPUT VOLTAGE CHANGE (V) TA = -40C 300 TA = +65C DROPOUT VOLTAGE (V) 80 toc7b 100 OUTPUT VOLTAGE VARIATION (V) MAX6173 toc07 OUTPUT VOLTAGE CHANGE (V) 100 LINE REGULATION vs. TEMPERATURE (VOUT = 10V) MAX6173 toc08 LINE REGULATION vs. TEMPERATURE (VOUT = 4.096V) LINE REGULATION vs. TEMPERATURE (VOUT = 2.5V) -60 -40 -50 -60 -70 -80 -80 -100 -100 -100 -90 -120 -110 -140 0.001 0.01 0.1 1 10 FREQUENCY (kHz) 8 100 1000 -120 0.001 0.01 0.1 1 10 FREQUENCY (kHz) 100 1000 -120 0.001 0.01 0.1 1 10 FREQUENCY (kHz) 100 1000 Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) OUTPUT IMPEDANCE vs. FREQUENCY (VOUT = 4.096V) OUTPUT IMPEDANCE vs. FREQUENCY (VOUT = 2.5V) 10 1 0.1 0.01 0.01 0.001 0.1 1 10 100 0.001 0.001 1000 0.01 0.1 1 10 FREQUENCY (kHz) FREQUENCY (kHz) 300 SUPPLY CURRENT ( A) SUPPLY CURRENT (A) 350 TA = +25C 250 TA = -40C 200 150 0.001 0.001 1000 toc14b 300 TA = +25C 200 150 50 50 10 15 20 25 30 35 0 5 INPUT VOLTAGE (V) 10 15 20 25 30 INPUT VOLTAGE (V) 35 375 MAX6173 toc16 -25 0 25 50 75 TEMPERATURE (C) Maxim Integrated 100 125 0 5 10 15 20 25 30 35 40 SUPPLY CURRENT vs. TEMPERATURE (VOUT = 10V) toc16b 375 350 350 325 300 325 300 275 275 -50 TA = -40C 150 0 275 250 TA = +25C 200 40 SUPPLY CURRENT (A) 300 250 COUT = 0 SUPPLY CURRENT (A) 325 TA = +125C INPUT VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 4.096V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 2.5V) 350 1000 50 0 40 100 100 COUT = 0 5 0.1 1 10 FREQUENCY (kHz) 400 300 250 0.01 SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 10V) 350 100 0 0.1 350 100 0 SUPPLY CURRENT (A) 100 400 MAX6173 toc14 TA = +125C 1 SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 4.096V) SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 2.5V) 400 10 0.01 SUPPLY CURRENT (A) 0.01 toc13c COUT = 1F MAX6173 toc15 0.1 100 MAX6173 toc17 1 toc13b COUT = 0 OUTPUT IMPEDANCE () MAX6173 toc13 10 100 OUTPUT IMPEDANCE () OUTPUT IMPEDANCE () 100 OUTPUT IMPEDANCE vs. FREQUENCY (VOUT = 4.096V) 250 250 -50 -25 0 25 50 75 TEMPERATURE (C) 100 125 -50 -25 0 25 50 75 100 125 TEMPERATURE (C) 9 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) TEMP VOLTAGE vs. TEMPERATURE (VOUT = 4.096V) 600 500 TEMPERATURE (C) 0 25 50 75 TEMPERATURE (C) OUTPUT VOLTAGE vs. TRIM VOLTAGE (VOUT = 2.5V) OUTPUT VOLTAGE vs. TRIM VOLTAGE (VOUT = 4.096V) 0 25 50 75 100 -50 125 MAX6173 toc20 2.65 2.60 2.55 2.50 2.45 -25 100 600 400 125 -50 -25 0 25 50 75 100 125 TEMPERATURE (C) 4.5 LONG-TERM STABILITY vs. TIME (VOUT = 2.500V) toc20b 2.502 TWO TYPICAL PARTS 4.4 4.3 2.501 4.2 4.1 VOUT (V) -25 OUTPUT VOLTAGE CHANGE (V) -50 700 500 400 400 OUTPUT VOLTAGE (V) 700 MAX6173 toc21 500 800 800 TEMP VOLTAGE (mV) 600 900 COUT = 0 TEMP VOLTAGE (mV) 700 TEMP VOLTAGE (mV) 900 MAX6173 toc18 800 TEMP VOLTAGE vs. TEMPERATURE (VOUT = 10V) toc18b MAX6173 toc19 TEMP VOLTAGE vs. TEMPERATURE (VOUT = 2.5V) 4 2.500 3.9 3.8 2.499 3.7 2.40 3.6 2.35 1.5 2.0 0 TRIM VOLTAGE (V) LONG-TERM STABILITY vs. TIME (VOUT = 4.096V) 4.098 TWO TYPICAL PARTS 2.498 3.5 2.5 1 2 TRIM VOLTAGE (V) 3 toc21b 10.002 TWO TYPICAL PARTS 4.0975 10.001 VOUT (V) VOUT (V) 10.000 4.096 9.999 4.0955 200 400 600 TIME (hours) 10 800 1000 600 800 1000 1000 100 9.998 0 400 OUTPUT-VOLTAGE NOISE DENSITY vs. FREQUENCY (VOUT = 2.5V) 4.097 4.095 200 TIME (hours) LONG-TERM STABILITY vs. TIME (VOUT = 10.0V) COUT = 0 4.0965 0 4 MAX6173 toc23 1.0 OUTPUT VOLTAGE-NOISE DENSITY (nV/Hz) 0.5 MAX6173 toc22 0 0 200 400 600 TIME (hours) 800 1000 0.1 1 10 100 FREQUENCY (Hz) 1000 Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) 1000 100 1000 100 10 1 10 100 1000 10000 100000 0.1 1 FREQUENCY (Hz) 10 100 1000 0.1 10000 100000 toc24b 6 6 OUTPUT VOLTAGE NOISE (VP-P) 4 2 0 -2 -4 10 100 FREQUENCY (Hz) 1000 0.1Hz to 10Hz OUTPUT VOLTAGE NOISE (VOUT = 4.096V, COUT = 1 F) toc24c 4 2 0 -2 -4 -6 -6 4s/div 4s/div 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 10V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 2.5V) MAX6173 toc26 MAX6173 toc25 4V/div 1V/div 1s/div Maxim Integrated 1 FREQUENCY (Hz) 0.1Hz to 10Hz OUTPUT VOLTAGE NOISE (VOUT = 4.096V, COUT = 0) OUTPUT VOLTAGE NOISE (VP-P) 1000 100 1 0.1 10,000 MAX6173 toc24 COUT = 1F 10 OUTPUT-VOLTAGE NOISE DENSITY vs. FREQUENCY (VOUT = 10V) OUTPUT VOLTAGE-NOISE DENSITY (nV/Hz) COUT = 0 OUTPUT VOLTAGE-NOISE DENSITY vs. FREQUENCY (VOUT = 4.096V) toc23c INPUT VOLTAGE-NOISE DENSITY (nV/Hz) INPUT VOLTAGE-NOISE DENSITY (nV/Hz) OUTPUT VOLTAGE-NOISE DENSITY vs. FREQUENCY (VOUT = 4.096V) toc23b 1s/div 11 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 2.5V, COUT = 1F, 0 TO +20mA) LOAD TRANSIENT (VOUT = 2.5V, COUT = 0, 0 TO 20mA) MAX6173 toc27 MAX6173 toc28 20mA 20mA IOUT IOUT 0 0 VOUT AC-COUPLED 1V/div VOUT AC-COUPLED 50mV/div 10s/div 200s/div LOAD TRANSIENT (VOUT = 4.096V, COUT = 0, 0 TO 20mA) LOAD TRANSIENT (VOUT = 4.096V, COUT = 1F, 0 TO 20mA) toc28b toc28c 20mA 20mA IOUT 10mA/div 0 IOUT 10mA/div 0 ACCOUPLED 1V/div VOUT 10s/div ACCOUPLED VOUT 10mV/div 100s/div LOAD TRANSIENT (VOUT = 10V, COUT = 0, 0 TO 20mA) LOAD TRANSIENT (VOUT = 10V, COUT = 1F, 0 TO 20mA) MAX6173 toc29 MAX6173 toc30 20mA IOUT 20mA 0 IOUT 0 VOUT AC-COUPLED 100mV/div VOUT AC-COUPLED 1V/div 10s/div 12 100s/div Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 4.096V, COUT = 0, ISINK = 0 TO -2mA) LOAD TRANSIENT (VOUT = 2.5V, COUT = 0, 0 TO -2mA) toc31b MAX6173 toc31 0 IOUT 0 ISINK -2mA VOUT AC-COUPLED 200mV/div 40s/div -2mA VOUT ACCOUPLED 200mV/div 100s/div LOAD TRANSIENT (VOUT = 2.5V, COUT = 1F, 0 TO -2mA) LOAD TRANSIENT (VOUT = 10V, COUT = 0, 0 TO -2mA) MAX6173 toc33 MAX6173 toc32 0 0 IOUT IOUT -2mA -2mA VOUT AC-COUPLED 20mV/div VOUT AC-COUPLED 20mV/div 400s/div 200s/div LOAD TRANSIENT (VOUT = 4.096V, COUT = 1F, ISINK = 0 TO -2mA) LOAD TRANSIENT (VOUT = 10V, COUT = 1F, 0 TO -2mA) toc33b MAX6173 toc34 0 0 IOUT ISINK -2mA -2mA VOUT ACCOUPLED 50mV/div 100s/div Maxim Integrated VOUT AC-COUPLED 5mV/div 400s/div 13 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.) LINE TRANSIENT (VOUT = 4.096V, COUT = 0) LINE TRANSIENT (VOUT = 4.096V, COUT = 1 F) toc34b VIN VOUT 0.5V/div ACCOUPLED (14.5V TO 15.5V) VIN ACCOUPLED 50mV/div VOUT toc34c 0.5V/div ACCOUPLED (14.5V TO 15.5V) ACCOUPLED 20mV/div 200s/div 100s/div LINE TRANSIENT (VOUT = 2.5V) LINE TRANSIENT (VOUT = 10V) MAX6173 toc35 MAX6173 toc36 5.5V 4.5V 15.5V VIN 1V/div 14.5V VOUT AC-COUPLED 200mV/div VOUT AC-COUPLED 200mV/div VIN COUT = 0 10s/div 2s/div TURN-ON TRANSIENT (VOUT = 2.5V, COUT = 0) TURN-ON TRANSIENT (VOUT = 2.5V, COUT = 1F) MAX6173 toc38 MAX6173 toc37 VIN 2V/div VIN 2V/div GND GND VOUT 1V/div VOUT 1V/div GND GND 10s/div 14 40s/div Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = 4.096V and VOUT = +10V, IOUT = 0, TA = +25C, unless otherwise noted.)-- TURN-ON TRANSIENT (VOUT = 4.096V, COUT = 0) TURN-ON TRANSIENT (VOUT = 4.096V, COUT = 1F) toc38b toc38c VIN 10V/div 10V/div VIN VOUT 2V/div 200s/div VOUTP 2V/div 100s/div TURN-ON TRANSIENT (VOUT = 10V, COUT = 0) TURN-ON TRANSIENT (VOUT = 10V, COUT = 1F) MAX6173 toc39 MAX6173 toc40 VIN 5V/div VIN 5V/div 100s/div Maxim Integrated GND GND VOUT 5V/div VOUT 5V/div GND GND 200s/div 15 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Pin Description PIN NAME FUNCTION 1, 8 I.C. Internally Connected. Do not connect externally. 2 IN Positive Power-Supply Input 3 TEMP Temperature Proportional Output Voltage. TEMP generates an output voltage proportional to the die temperature. 4 GND Ground 5 TRIM Output Voltage Trim. Connect TRIM to the center of a voltage-divider between OUT and GND for trimming. Leave unconnected to use the preset output voltage. 6 OUT Output Voltage 7 N.C. No Connection. Not internally connected. Detailed Description The MAX6173-MAX6177 precision voltage references provide accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V reference voltages from up to +40V input voltages. These devices feature a proprietary temperaturecoefficient curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low 3ppm/C temperature coefficient and excellent 0.05% initial accuracy. The MAX6173-MAX6177 draw 340A of supply current and source 30mA or sink 2mA of load current. Trimming the Output Voltage Trim the factory-preset output voltage on the MAX6173-MAX6177 by placing a resistive divider network between OUT, TRIM, and GND. Use the following formula to calculate the change in output voltage from its preset value: VOUT = 2 x (VTRIM - VTRIM (open)) x k where: VTRIM = 0V to VOUT VTRIM (open) = VOUT (nominal)/2 (typ) k = 6% (typ) 16 For example, use a 50k potentiometer (such as the MAX5436) between OUT, TRIM, and GND with the potentiometer wiper connected to TRIM (see Figure 2). As the TRIM voltage changes from VOUT to GND, the output voltage changes accordingly. Set R2 to 1M or less. Currents through resistors R1 and R2 add to the quiescent supply current. Temp Output The MAX6173-MAX6177 provide a temperature output proportional to die temperature. TEMP can be calculated from the following formula: TEMP (V) = TJ (K) x n where TJ = the die temperature, n = the temperature multiplier, (at TJ = T0 ) V 1.9mV K n = TEMP T0 TA = the ambient temperature. Self-heating affects the die temperature and conversely, the TEMP output. The TEMP equation assumes the output is not loaded. If device power dissipation is negligible, then TJ TA. Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Applications Information Bypassing/Output Capacitance For the best line-transient performance, decouple the input with a 0.1F ceramic capacitor as shown in the Typical Operating Circuit. Place the capacitor as close to IN as possible. When transient performance is less important, no capacitor is necessary. The MAX6173-MAX6177 do not require an output capacitor for stability and are stable with capacitive loads up to 100F. In applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (undershoot) and improves the circuit's transient response. Place output capacitors as close to the devices as possible for best performance. Supply Current The MAX6173-MAX6177 consume 320A (typ) of quiescent supply current. This improved efficiency reduces power dissipation and extends battery life. Thermal Hysteresis Thermal hysteresis is the change in the output voltage at TA = +25C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical thermal hysteresis value is 120ppm. Turn-On Time The MAX6173-MAX6177 typically turn on and settle to within 0.1% of the preset output voltage in 150s (2.5V output). The turn-on time can increase up to 150s with the device operating with a 1F load. Short-Circuited Outputs The MAX6173-MAX6177 feature a short-circuit-protected output. Internal circuitry limits the output current to 60mA when short circuiting the output to ground. The output current is limited to 3mA when short circuiting the output to the input. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error In a data converter application, the reference voltage of the converter must stay within a certain limit to keep the error in the data converter smaller than the resolution limit through the operating temperature range. Figure 1 shows the maximum allowable reference-voltage temperature coefficient to keep the conversion error to less than 1 LSB, as a function of the operating temperature range (TMAX - TMIN) with the converter resolution as a parameter. The graph assumes the reference-voltage temperature coefficient as the only parameter affecting accuracy. In reality, the absolute static accuracy of a data converter is dependent on the combination of many parameters such as integral nonlinearity, differential nonlinearity, offset error, gain error, as well as voltagereference changes. 10,000 1000 100 TEMPERATURE COEFFICIENT (ppm/C) 8-BIT 10 10-BIT 12-BIT 1 14-BIT 16-BIT 0.1 18-BIT 0.01 1 10 OPERATING TEMPERATURE RANGE (TMAX - TMIN) (C) 20-BIT 100 Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error Maxim Integrated 17 MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Pin Configuration ( VOUT + 2V) TO 40V INPUT TOP VIEW OUT * REFERENCE OUTPUT TRIM IN 2 TEMP 3 MAX6173- MAX6177 GND 4 MAX6173-MAX6177 TEMP + I.C.* 1 IN 8 I.C.* 7 N.C. 6 OUT 5 TRIM SO MAX5436 50k POTENTIOMETER *INTERNALLY CONNECTED. DO NOT CONNECT. GND Chip Information *OPTIONAL. PROCESS: BiCMOS Figure 2. Applications Circuit Using the MAX5436 Potentiometer Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. 18 PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 SO S8+4 21-0041 90-0096 Maxim Integrated MAX6173-MAX6177 High-Precision Voltage References with Temperature Sensor Revision History REVISION NUMBER REVISION DATE 0 6/04 Initial release 1 2/11 Added automotive grade part, lead-free information, and soldering temperature 1, 2 2 3/14 Updated package code in Package Information 14 3 6/14 Updated Ordering Information, Electrical Characteristics, and Typical Operating Characteristics 4 9/14 Updated Typical Operating Characteristics 7-14 5 9/14 Updated Typical Operating Characteristics 7-15 DESCRIPTION PAGES CHANGED -- 1, 4, 5, 8 Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ________________________________ 19 (c) 2014 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX6173AASA+T MAX6173BASA+T MAX6174AASA+ MAX6174AASA+T MAX6174BASA+ MAX6174BASA+T MAX6175AASA+T MAX6175BASA+T MAX6176AASA+T MAX6176BASA+T MAX6177AASA+ MAX6177AASA+T MAX6177BASA+ MAX6177BASA+T MAX6173AASA+ MAX6173BASA+ MAX6175AASA+ MAX6175BASA+ MAX6176AASA+ MAX6176BASA+ MAX6175BASA/V+T MAX6175BASA/V+