MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown General Description The single MAX9914/MAX9915 and dual MAX9916/ MAX9917 operational amplifiers feature maximized ratio of gain bandwidth to supply current and are ideal for battery-powered applications such as portable instrumentation, portable medical equipment, and wireless handsets. These CMOS op amps feature an ultra-low 1pA input bias current, rail-to-rail inputs and outputs, low 20A supply current, and operate from a single 1.8V to 5.5V supply. For additional power conservation, the MAX9915/MAX9917 feature a low-power shutdown mode that reduces supply current to 1nA, and puts the amplifier outputs in a high-impedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product. The MAX9914 and MAX9915 are available in 5-pin and 6-pin SC70 packages, respectively. The MAX9916 is available in an 8-pin SOT23 package, and the MAX9917 in a 10-pin MAX(R) package. All devices are specified over the -40C to +85C extended operating temperature range. Applications Portable Medical Devices Portable Test Equipment RF Tags Laptops Data-Acquisition Equipment Typical Operating Circuit 3V Single 1.8V to 5.5V Supply Voltage Range Ultra-Low 1pA Input Bias Current Rail-to-Rail Input and Output Voltage Ranges Low 200V Input Offset Voltage Low 0.001A Shutdown Current High-Impedance Output During Shutdown (MAX9915/MAX9917) Unity-Gain Stable Available in Tiny SC70, SOT23, and MAX Packages Ordering Information PART TEMP RANGE PINPACKAGE MAX9914EXK+T -40C to +85C 5 SC70 AGB MAX9914EXK-T -40C to +85C 5 SC70 AGB MAX9915EXT+T -40C to +85C 6 SC70 ACB MAX9915EXT-T -40C to +85C 6 SC70 ACB MAX9916EKA+T -40C to +85C 8 SOT23 AEJZ MAX9916EKA-T -40C to +85C 8 SOT23 AEJZ MAX9917EUB -40C to +85C 10 MAX -- MAX9917EUB+ -40C to +85C 10 MAX -- TOP MARK INARG* GAIN = R2 10k INB+ VSS MICROPOWER, TWO-OP-AMP INSTRUMENTATION AMPLIFIER *OPTIONAL INPUT RESISTOR RG, IS FOR GAIN ADJUSTMENT (R1 + R2 + R3 + R4) (R2 + R3) FOR R1 = R4 AND R2 = R3 GAIN = 1 + OUTB INB- PART AMPLIFIERS PER PACKAGE MAX9914EXK+T 1 No 5 SC70 MAX9915EXT+T 1 Yes 6 SC70 MAX9916EKA+T 2 No 8 SOT23 MAX9917EUB+ 2 Yes 10 MAX OUT R1 47k 19-3407; Rev 3; 11/14 Ultra-Low 20A Supply Current Selector Guide INA+ OUTA IN- High 1MHz GBW +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. VDD MAX9916 IN+ Features R3 10k R4 R2 SHUTDOWN PACKAGE MODE R4 47k MAX is a registered trademark of Maxim Integrated Products, Inc. MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Absolute Maximum Ratings Power-Supply Voltage (VDD to VSS).....................-0.3V to +6.0V IN_+, IN_-, OUT_, SHDN_............. (VSS - 0.3V) to (VDD + 0.3V) Current into IN_+, IN_-......................................................20mA Output Short-Circuit Duration to VDD or VSS.............Continuous Continuous Power Dissipation (TA = +70C) 5-Pin SC70 (derate 3.1mW/C above +70C)..............247mW 6-Pin SC70 (derate 3.1mW/C above +70C)..............245mW 8-Pin SOT23 (derate 5.1mW/C above +70C)...........408mW 10-Pin MAX (derate 5.6mW/C above +70C)...........444mW Operating Temperature Range............................ -40C to +85C 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 (VDD = 1.8V to 5.5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = connected to VDD/2, SHDN_ = VDD, TA = +25C, unless otherwise noted.) (Note 1) PARAMETER Supply Voltage Range SYMBOL VDD CONDITIONS Guaranteed by PSRR test MAX9914/MAX9915 Supply Current IDD MAX9916/MAX9917 Shutdown Supply Current Input Offset Voltage IDD(SHDN_) MIN 1.8 MAX UNITS 5.5 V VDD = 1.8V 20 VDD = 5.5V 20 VDD = 1.8V 40 VDD = 5.5V 40 50 0.001 0.5 A 0.2 1 mV SHDN_ = GND, MAX9915/MAX9917 VOS Input-Offset-Voltage Matching TYP 25 250 MAX9916/MAX9917 A V IB (Note 2) 1 10 pA Input Offset Current IOS (Note 2) 1 10 pA Input Resistance RIN Common mode 1 Differential mode, -1mV < VIN < +1mV 10 Input Bias Current Input Common-Mode Range VCM Guaranteed by CMRR test VSS - 0.1 G VDD + 0.1 V Common-Mode Rejection Ratio CMRR -0.1V < VCM < VDD + 0.1V, VDD = 5.5V 70 80 dB Power-Supply Rejection Ratio PSRR 1.8V < VDD < 5.5V 65 85 dB 25mV < VOUT < VDD - 25mV, RL = 100k, VDD = 5.5V 95 120 100mV < VOUT < VDD - 100mV, RL = 5k, VDD = 5.5V 95 110 Open-Loop Gain Output-Voltage-Swing High Output-Voltage-Swing Low AVOL VOH VOL Channel-to-Channel Isolation CHISO Output Short-Circuit Current IOUT(SC) www.maximintegrated.com VDD - VOUT VOUT - VSS dB RL = 100k 2.5 5 RL = 5k 50 70 RL = 1k 250 RL = 100k 2.5 5 RL = 5k 50 70 RL = 1k 250 Specified at DC, MAX9916/MAX9917 mV mV 100 dB 15 mA Maxim Integrated 2 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Electrical Characteristics (continued) (VDD = 1.8V to 5.5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = connected to VDD/2, SHDN_ = VDD, TA = +25C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL SHDN_ Logic Low VIL SHDN_ Logic High VIH SHDN_ Input Bias Current Output Leakage in Shutdown CONDITIONS TYP MAX 0.4 VDD = 3.6V to 5.5V, MAX9915/MAX9917 0.8 VDD = 1.8V to 3.6V, MAX9915/MAX9917 1.4 VDD = 3.6V to 5.5V, MAX9915/MAX9917 2 IIL SHDN_ = VSS, MAX9915/MAX9917 (Note 2) IIH SHDN_ = VDD, MAX9915/MAX9917 IOUT(SHDN_) MIN VDD = 1.8V to 3.6V, MAX9915/MAX9917 500 1 Gain-Bandwidth Product V V 1 SHDN_ = VSS, VOUT = 0V to VDD, MAX9915/MAX9917 UNITS 500 nA nA 1 MHz Phase Margin CL = 15pF 45 degrees Gain Margin CL = 15pF 10 dB 0.5 V/s Slew Rate Capacitive-Load Stability (See the Driving Capacitive Loads Section) CLOAD No sustained oscillations AV = 1V/V 30 AV = 10V/V 100 RL = 5k, AV = 1V/V 100 RISO = 1k, AV = 1V/V 100 pF Input Voltage-Noise Density f = 1kHz 160 nV/Hz Input Current-Noise Density f = 1kHz 0.001 pA/Hz Settling Time To 0.1%, VOUT = 2V step, AV = -1V/V 3.5 s Delay Time to Shutdown tSH IDD = 5% of normal operation, VDD = 5.5V, VSHDN_ = 5.5V to 0 step 2 s Delay Time to Enable tEN VOUT = 2.7V, VOUT settles to 0.1%, VDD = 5.5V, VSHDN_ = 0 to 5.5V step 10 s VDD = 0 to 5.5V step 2 s Power-Up Time Electrical Characteristics (VDD = 1.8V to 5.5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = connected to VDD/2, SHDN_ = VDD, TA = -40C to +85C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL Supply Voltage Range VDD Supply Current IDD Shutdown Supply Current Input Offset Voltage www.maximintegrated.com IDD(SHDN_) VOS CONDITIONS Guaranteed by PSRR test MAX9914/MAX9915 MAX9916/MAX9917 VDD = 5.5V SHDN_ = GND, MAX9915/MAX9917 MIN 1.8 TYP MAX UNITS 5.5 V 29 60 A 1 A 3 mV Maxim Integrated 3 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Electrical Characteristics (continued) (VDD = 1.8V to 5.5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = connected to VDD/2, SHDN_ = VDD, TA = -40C to +85C, unless otherwise noted.) (Note 1) PARAMETER Input-Offset-Voltage Temperature Coefficient (Note 2) SYMBOL CONDITIONS MIN TYP MAX 5 TCVOS UNITS V/C IB 30 pA Input Offset Current IOS 20 pA Input Common-Mode Range VCM Input Bias Current Guaranteed by CMRR test VSS - 0.05 VDD + 0.05 V Common-Mode Rejection Ratio CMRR -0.05V < VCM < VDD + 0.05V, VDD = 5.5V 60 dB Power-Supply Rejection Ratio PSRR 1.8V < VDD < 5.5V 60 dB 25mV < VOUT < VDD - 25mV, RL = 100k, VDD = 5.5V 85 150mV < VOUT < VDD - 150mV, RL = 5k, VDD = 5.5V 85 Open-Loop Gain AVOL Output-Voltage-Swing High VOH VDD - VOUT Output-Voltage-Swing Low VOL VOUT - VSS SHDN_ Logic Low VIL SHDN_ Logic High VIH SHDN_ Input Bias Current Output Leakage in Shutdown dB RL = 100k 6 RL = 5k 90 RL = 100k 5 RL = 5k 90 VDD = 1.8V to 3.6V, MAX9915/MAX9917 0.4 VDD = 3.6V to 5.5V, MAX9915/MAX9917 0.8 VDD = 1.8V to 3.6V, MAX9915/MAX9917 1.4 VDD = 3.6V to 5.5V, MAX9915/MAX9917 2 mV mV V V IIL SHDN_ = VSS, MAX9915/MAX9917 5 nA IIH SHDN_ = VDD, MAX9915/MAX9917 1000 nA SHDN_ = VSS, VOUT = 0V to VDD, MAX9915/MAX9917 1000 nA IOUT(SHDN_) Note 1: Specifications are 100% tested at TA = +25C (exceptions noted). All temperature limits are guaranteed by design. Note 2: Guaranteed by design, not production tested www.maximintegrated.com Maxim Integrated 4 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Typical Operating Characteristics (VDD = 3V, VSS = VCM = 0V, RL to VDD/2, TA = +25C, unless otherwise noted.) DUAL 40 TA = +25C TA = +85C 20 SINGLE 15 10 5 3.3 4.1 4.8 0 -250 0 -500 -2 -750 -4 -15 -40 10 35 60 85 -1000 2.0 2.5 3.0 INPUT BIAS CURRENT vs. INPUT COMMON-MODE VOLTAGE 7 6 5 IB (pA) 3 -100 5 4 3 2 IB- IB+ 2 1 0 -1 -120 1 -140 0 -2 -160 -1 -3 -180 -2 -4 -200 -3 -5 -15 10 35 60 85 -40 -15 10 35 60 85 -0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 TEMPERATURE (C) TEMPERATURE (C) VCM (V) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY COMMON-MODE REJECTION RATIO vs. TEMPERATURE COMMON-MODE REJECTION RATIO vs. FREQUENCY 140 MAX9914 toc07 -10 -20 120 0 -10 -20 100 CMRR (dB) -40 -50 -60 -70 -30 CMRR (dB) -30 80 60 1 10 100 FREQUENCY (Hz) www.maximintegrated.com 1k 10k 0 -50 -60 -80 20 -90 -40 -70 40 -80 0.1 1.5 INPUT BIAS CURRENT vs. TEMPERATURE -80 -100 1.0 INPUT OFFSET VOLTAGE vs. TEMPERATURE 4 0 0.5 0 VCM (V) -60 -40 TA = +25C TA = -40C TEMPERATURE (C) -40 VOS (V) 2 TA = +85C 250 VSUPPLY (V) -20 PSRR (dB) 4 -6 5.5 MAX9914 toc04 0 2.6 500 6 MAX9914 toc06 1.8 750 MAX9914 toc09 0 8 IB (pA) 25 TA = -40C 1000 MAX9914 toc05 30 10 MAX9914 toc08 ICC (A) 35 12 INPUT OFFSET VOLTAGE vs. INPUT COMMON-MODE VOLTAGE MAX9914 toc03 TA = +85C VOS (V) TA = -40C SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE MAX9914 toc02 TA = +25C 45 SHUTDOWN SUPPLY CURRENT (nA) 50 MAX9914 toc01 SUPPLY CURRENT vs. SUPPLY VOLTAGE -90 -40 -15 10 35 TEMPERATURE (C) 60 85 -100 1 10 100 1k 10k 100k FREQUENCY (Hz) Maxim Integrated 5 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Typical Operating Characteristics (continued) (VDD = 3V, VSS = VCM = 0V, RL to VDD/2, TA = +25C, unless otherwise noted.) 1.5 1.0 0.5 0 -0.5 100 RL = 5k RL = 100k 10 RL TO VSS VOH = VDD - VOUT -1.0 1.8 3.8 4.8 -40 -15 60 1 85 140 RL = 100k RL = 5k 100 MAX9914 toc12 35 60 85 60 100 RL = 1k 80 60 0 0 -15 -40 10 35 60 85 -40 -15 TEMPERATURE (C) MAX9914 toc16 100 AV = 1000V/V GAIN 180 45 0 PHASE -45 -40 -90 -60 -135 -80 -180 -100 -225 100 1k 10k 100k FREQUENCY (Hz) www.maximintegrated.com 1M 10M -270 CROSSTALK (dB) 20 PHASE (DEGREES) 90 60 85 135 90 20 45 0 0 PHASE -20 -45 -40 -90 -60 -135 -80 -180 -100 -225 1 10 100 1k 10k 100k 1M 10M -270 FREQUENCY (Hz) CROSSTALK vs. FREQUENCY TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX9916/MAX9917 0 -10 -20 -30 -40 -60 -80 -40 -50 -60 VOUT = 2VP-P -70 -80 -100 -120 180 TEMPERATURE (C) -20 135 40 10 0 225 35 THD+N (dB) GAIN AND PHASE vs. FREQUENCY (RL = 5k, CLOAD = 100pF) 10 225 40 -120 MAX9914 toc17 20 AV = 1000V/V GAIN 60 40 20 MAX9914 toc15 80 GAIN (dB) RL = 1k 1 10 MAX9914 toc18 160 AVOL (dB) 80 -20 -15 -40 GAIN AND PHASE vs. FREQUENCY (RL = , CLOAD = 15pF) RL = 5k 0 RL TO VDD VOL = VOUT - VSS OPEN-LOOP GAIN vs. TEMPERATURE (RL TO VDD) 120 60 RL = 100k OPEN-LOOP GAIN vs. TEMPERATURE (RL TO VSS) RL = 100k 80 10 TEMPERATURE (C) 40 GAIN (dB) 35 RL = 5k TEMPERATURE (C) 100 -120 10 100 SUPPLY VOLTAGE (V) 120 AVOL (dB) 1 5.5 MAX9914 toc14 140 2.8 MAX9914 toc13 -1.5 RL = 1k -90 10 100 1k FREQUENCY (Hz) 10k 100k -100 10 100 1k 10k FREQUENCY (Hz) Maxim Integrated 6 PHASE (DEGREES) 2.0 OUTPUT-SWING LOW vs. TEMPERATURE 1000 OUTPUT VOLTAGE SWING (mV) 2.5 RL = 1k OUTPUT VOLTAGE SWING (mV) 3.0 SLEW RATE (V/s) 1000 MAX9914 toc10 3.5 OUTPUT-SWING HIGH vs. TEMPERATURE MAX9914 toc11 SLEW RATE vs. SUPPLY VOLTAGE MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Typical Operating Characteristics (continued) (VDD = 3V, VSS = VCM = 0V, RL to VDD/2, TA = +25C, unless otherwise noted.) 3000 MAX9914 toc19 POWER-UP SETTLING TIME MAX9914 toc21 AV = 1V/V FOR AV = 10V/V NO RISO NEEDED 2500 2000 1000 1500 1000 OUTPUT 500mV/div 500 10 100 1k 10k 0 100k 10 100 FREQUENCY (Hz) 1000 IN+ = VDD / 2 AV = 1V/V 1s/div 10,000 CLOAD (pF) SMALL-SIGNAL GAIN vs. FREQUENCY SHUTDOWN RESPONSE MAX9914 toc22 10 8 3V 6 SHDN = 3V 1.5V 0V 2 0 -2 1 0 -1 -2 -6 -3 -8 -10 20s/div AV = 1V/V VOUT = 2VP-P CLOAD = 15pF 3 2 -4 OUTPUT 4 4 GAIN (dB) 0V AV = 1V/V VOUT = 100mVP-P CLOAD = 15pF GAIN (dB) IN+ = VDD / 2 AV = 1V/V LARGE-SIGNAL GAIN vs. FREQUENCY 1k 10k 100k 1M 10M -4 10 1 FREQUENCY (Hz) 1000 SMALL-SIGNAL PULSE RESPONSE (CLOAD = 100pF) MAX9914 toc25 MAX9914 toc26 AV = 10V/V AV = 1V/V IN+ 50mV/div IN+ 5mV/div OUTPUT 50mV/div OUTPUT 50mV/div www.maximintegrated.com 100 FREQUENCY (kHz) SMALL-SIGNAL PULSE RESPONSE (CLOAD = 15pF) 1s/div MAX9914 toc24 1 MAX9914 toc23 100 VDD 1V/div RISO () VOLTAGE NOISE (nV/Hz) 10,000 RESISTOR ISOLATION vs. CAPACITIVE LOAD MAX9914 toc20 VOLTAGE-NOISE DENSITY vs. FREQUENCY 5s/div Maxim Integrated 7 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Typical Operating Characteristics (continued) (VDD = 3V, VSS = VCM = 0V, RL to VDD/2, TA = +25C, unless otherwise noted.) LARGE-SIGNAL PULSE RESPONSE (CLOAD = 15pF) LARGE-SIGNAL PULSE RESPONSE (CLOAD = 100pF) MAX9914 toc27 MAX9914 toc28 AV = 10V/V AV = 1V/V IN+ 1V/div IN+ 100mV/div OUTPUT 1V/div OUTPUT 1V/div 5s/div PERCENT OVERSHOOT vs. CAPACITIVE LOAD OUTPUT WAVEFORM WITH RISO (CLOAD = 47pF, RISO = 2.3k) 6 OVERSHOOT (%) MAX9914 toc30 MAX9914 toc29 7 5s/div 5 AV = 1V/V INPUT 50mV/div RL = 1M RL = 100k 4 3 RL = 10k OUTPUT 50mV/div 2 1 0 20 40 60 80 5s/div 100 CLOAD (pF) OUTPUT WAVEFORM WITHOUT RISO (CLOAD = 47pF) MAX9914 toc31 AV = 1V/V IN+ 50mV/div OUTPUT 50mV/div 5s/div www.maximintegrated.com Maxim Integrated 8 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Pin Description PIN NAME FUNCTION MAX9914 MAX9915 MAX9916 MAX9917 1 1 -- -- IN+ Noninverting Amplifier Input 2 2 4 4 VSS Negative Supply Voltage 3 3 -- -- IN- Inverting Amplifier Input 4 4 -- -- OUT Amplifier Output 5 6 8 10 VDD Positive Supply Voltage -- 5 -- -- SHDN Shutdown -- -- 1 1 OUTA Amplifier Output Channel A -- -- 2 2 INA- Inverting Amplifier Input Channel A -- -- 3 3 INA+ Noninverting Amplifier Input Channel A -- -- -- 5 SHDNA Shutdown Channel A -- -- -- 6 SHDNB Shutdown Channel B -- -- 5 7 INB+ Noninverting Amplifier Input Channel B -- -- 6 8 INB- Inverting Amplifier Input Channel B -- -- 7 9 OUTB Detailed Description Featuring a maximized ratio of gain bandwidth to supply current, low operating supply voltage, low input bias current, and rail-to-rail inputs and outputs, the MAX9914- MAX9917 are an excellent choice for precision or general-purpose low-current, low-voltage, battery-powered applications. These CMOS devices consume an ultra-low 20A (typ) supply current and a 200V (typ) offset voltage. For additional power conservation, the MAX9914/ MAX9917 feature a lowpower shutdown mode that reduces supply current to 1nA (typ), and puts the amplifiers' output in a highimpedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 30pF. The capacitive load can be increased to 100pF when the amplifier is configured for a 10V/V gain. Rail-to-Rail Inputs and Outputs The MAX9914-MAX9917 amplifiers all have a parallelconnected n- and p-channel differential input stage that allows an input common-mode voltage range that extends 100mV beyond the positive and negative supply rails, with excellent common-mode rejection. www.maximintegrated.com Amplifier Output Channel B The MAX9914-MAX9917 are capable of driving the output to within 5mV of both supply rails with a 100k load. These devices can drive a 5k load with swings to within 60mV of the rails. Figure 1 shows no clipping at the output voltage swing of the MAX9914-MAX9917 configured as a unity-gain buffer powered from a single 3V supply. Low Input Bias Current The MAX9914-MAX9917 feature ultra-low 1pA (typ) input bias current. The variation in the input bias current is minimal with changes in the input voltage due to very high input impedance (in the order of 1G). Applications Information Driving Capacitive Loads The MAX9914-MAX9917 amplifiers are unity-gain stable for loads up to 30pF. However, the capacitive load can be increased to 100pF when the amplifier is configured for a minimum gain of 10V/V. Applications that require greater capacitive drive capability should use an isolation resistor between the output and the capacitive load (Figure 2). Also, in unity-gain applications with relatively small RL (about 5k), the capacitive load can be increased up to 100pF. Maxim Integrated 9 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Power-Supply Considerations RAIL-TO-RAIL OUTPUT VOLTAGE RANGE The MAX9914-MAX9917 are optimized for single 1.8V to 5.5V supply operation. A high amplifier power-supply rejection ratio of 85dB (typ) allows the devices to be powered directly from a battery, simplifying design and extending battery life. 3V IN_ 1V/div 0V Power-Up Settling Time The MAX9914-MAX9917 typically require 2s after power-up. Supply settling time depends on the supply voltage, the value of the bypass capacitor, the output impedance of the incoming supply, and any lead resistance or inductance between components. Op amp settling time depends primarily on the output voltage and is slew-rate limited. Figure 3 shows the MAX991_ in a noninverting voltage follower configuration with the input held at midsupply. The output settles in approximately 3.5s for VDD = 3V (see the Typical Operating Characteristics for the Power-Up Settling Time graph). 3V OUT_ 1V/div 0V VDD = 3V 200s/div Figure 1. Rail-to-Rail Output Voltage Range Shutdown Mode The MAX9915 and MAX9917 feature active-low shutdown inputs. The MAX9915 and MAX9917 enter shutdown in 2s (typ) and exit shutdown in 10s (typ). The amplifiers' outputs are high impedance in shutdown mode. Drive SHDN low to enter shutdown. Drive SHDN high to enable the amplifier. The MAX9917 dual amplifier features separate shutdown inputs. Shut down both amplifiers for lowest quiescent current. Power-Supply Bypassing and Layout Bypass VDD with a 0.1F capacitor to ground as close to the pin as possible to minimize noise. Good layout techniques optimize performance by decreasing the amount of stray capacitance and inductance to the op amp's inputs and outputs. Minimize stray capacitance and inductance, by placing external components close to the IC. RISO MAX9914- MAX9917 RL AV = CL RL 1V/V RL + RISO Figure 2. Using a Resistor to Isolate a Capacitive Load from the Op Amp 0V 5.5V 100k IN- VDD OUT IN+ VSS MAX991_ 100k Figure 3. Power-Up Test Configuration www.maximintegrated.com Maxim Integrated 10 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Pin Configurations TOP VIEW MAX9914 IN+ + 1 MAX9915 5 VDD VSS 2 IN- 3 4 OUT IN+ 1 + 6 VDD VSS 2 5 SHDN IN- 3 4 OUT SC70 SC70 MAX9916 OUTA 1 + MAX9917 8 VDD INA- 2 7 OUTB INA+ 3 6 INB- VSS 4 5 INB+ PROCESS: BiCMOS www.maximintegrated.com + OUTA 1 INA- 2 9 OUTB INA+ 3 8 INB- 7 INB+ 6 SHDNB VSS 4 SHDNA 5 SOT23 Chip Information SHDN 10 VDD SHDNA SHDNB MAX 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. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 5 SC70 X5+1 21-0076 90-0188 6 SC70 X6SN+1 21-0077 90-0189 8 SOT23 K8+5 21-0078 90-0176 10 MAX U10+2 21-0061 90-0330 Maxim Integrated 11 MAX9914-MAX9917 1MHz, 20A, Rail-to-Rail I/O Op Amps with Shutdown Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 11/04 Initial release 1 10/05 Removed future product asterisks from MAX9916/MAX9917, edited VOL/ VOH specifications in the EC table, removed MAX9916 8-pin MAX package. 2 6/13 Updated Electrical Characteristics 3 11/14 Updated Absolute Maximum Ratings and Electrical Characteristics DESCRIPTION -- 1, 2, 11 3, 4 2, 3, 4 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated's website at www.maximintegrated.com. 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 and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2014 Maxim Integrated Products, Inc. 12 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX9914EXK+T MAX9915EXT+T MAX9916EKA+T MAX9917EUB+ MAX9917EUB+T MAX9914EXK-T MAX9915EXT-T