(R) INA137 INA2137 INA 137 INA 213 7 INA 137 INA 213 7 AUDIO DIFFERENTIAL LINE RECEIVERS 6dB (G = 1/2 or 2) FEATURES APPLICATIONS SINGLE AND DUAL VERSIONS LOW DISTORTION: 0.0005% at f = 1kHz AUDIO DIFFERENTIAL LINE RECEIVER G = 1/2 OR G = 2 AMPLIFIER HIGH SLEW RATE: 14V/s FAST SETTLING TIME: 3s to 0.01% WIDE SUPPLY RANGE: 4V to 18V INSTRUMENTATION BUILDING BLOCK CURRENT SHUNT MONITOR VOLTAGE-CONTROLLED CURRENT SOURCE GROUND LOOP ELIMINATOR LOW QUIESCENT CURRENT: 2.9mA max HIGH CMRR: 90dB FIXED GAIN = 6dB PACKAGES--SINGLE: 8-PIN DIP, SO-8 DUAL: 14-PIN DIP, SO-14 V+ 7 -In 2 12k 6k 5 Sense DESCRIPTION The INA137 and INA2137 are differential line receivers consisting of high performance op amps with on-chip precision resistors. They are fully specified for high performance audio applications and have excellent ac specifications, including low distortion (0.0005% at 1kHz) and high slew rate (14V/s), assuring good dynamic response. In addition, wide output voltage swing and high output drive capability allow use in a wide variety of demanding applications. The dual version features completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded. 6 +In The INA137 and INA2137 on-chip resistors are laser trimmed for accurate gain and optimum common-mode rejection. Furthermore, excellent TCR tracking of the resistors maintains gain accuracy and common-mode rejection over temperature. Operation is guaranteed from 4V to 18V (8V to 36V total supply). The INA137 is available in 8-pin DIP and SO-8 surface-mount packages. The INA2137 comes in 14-pin DIP and SO-14 surface-mount packages. Both are specified for operation over the extended industrial temperature range, -40C to +85C. 3 12k 6k 1 Output Ref INA137 V+ 4 11 V- -In A 2 12k 6k 13 A +In A -In B 3 6 12k 6k 12k 6k 5 12k 14 10 9 B +In B 12 6k 8 Sense A Out A Ref A Sense B Out B Ref B INA2137 4 V- International Airport Industrial Park * Mailing Address: PO Box 11400, Tucson, AZ 85734 * Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 * Tel: (520) 746-1111 * Twx: 910-952-1111 Internet: http://www.burr-brown.com/ * FAXLine: (800) 548-6133 (US/Canada Only) * Cable: BBRCORP * Telex: 066-6491 * FAX: (520) 889-1510 * Immediate Product Info: (800) 548-6132 (c)1997 Burr-Brown Corporation SBOS072 PDS-1391B Printed in U.S.A. July, 1997 SPECIFICATIONS: VS = 18V At TA = +25C, VS = 18V, RL = 2k, G = 1/2, and Ref Pin connected to Ground, unless otherwise noted. INA137PA, UA INA2137PA, UA PARAMETER CONDITIONS AUDIO PERFORMANCE Total Harmonic Distortion + Noise, f = 1kHz Noise Floor, RTO(1) Headroom, RTO(1) VIN = 10Vrms 20kHz BW THD+N < 1% FREQUENCY RESPONSE Small-Signal Bandwidth Slew Rate Settling Time: 0.1% 0.01% Overload Recovery Time Channel Separation (dual), f = 1kHz MIN 10V Step, CL = 100pF 10V Step, CL = 100pF 50% Overdrive OUTPUT NOISE VOLTAGE(2) f = 20Hz to 20kHz f = 1kHz OFFSET VOLTAGE(3) Input Offset Voltage vs Temperature vs Power Supply INPUT Common-Mode Voltage Range: Positive Negative Differential Voltage Range Common-Mode Rejection Impedance(4) Differential Common-Mode GAIN Initial Error vs Temperature Nonlinearity RTO VCM = 0V Specified Temperature Range VS = 4V to 18V VO = 0V VO = 0V 3(V+)-7.5 3(V-)+7.5 VCM = 46.5V, RS = 0 74 VO = -10V to 10V (V+)-2 (V-)+2 4 IO = 0 TEMPERATURE RANGE Specification Range Operation Range Storage Range Thermal Resistance, JA 8-Pin DIP SO-8 Surface-Mount 14-Pin DIP SO-14 Surface-Mount UNITS % dBu dBu 4.0 14 2 3 3 123 MHz V/s s s s dB 3.5 26 Vrms nV/HZ 1000 60 V V/C V/V 3(V+)-6 3(V-)+3 See Typical Curve 90 dB 24 18 k k 0.5 0.01 1 0.0001 OUTPUT Voltage Output, Positive Negative Current Limit, Continuous to Common Capacitive Load (Stable Operation) MAX 0.0005 -106 +23 100 2 5 VO = -10V to 10V POWER SUPPLY Rated Voltage Voltage Range Quiescent Current (per Amplifier) TYP V V 0.1 10 (V+)-1.8 (V-)+1.6 60 500 18 2.4 -40 -55 -55 100 150 80 100 V/V % ppm/C % V V mA pF 18 2.9 V V mA 85 125 125 C C C C/W C/W C/W C/W RTO = Referred to Output. NOTES: (1) dBu = 20log (Vrms /0.7746). (2) Includes effects of amplifier's input current noise and thermal noise contribution of resistor network. (3) Includes effects of amplifier's input bias and offset currents. (4) Internal resistors are ratio matched but have 25% absolute value. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. (R) INA137, INA2137 2 PIN CONFIGURATIONS Top View 8-Pin DIP/SO-8 Top View 14-Pin DIP/SO-14 Ref 1 8 NC NC 1 -In 2 7 V+ -In A 2 14 Ref A 13 Out A A +In 3 6 Output +In A 3 12 Sense A V- 4 5 Sense V- 4 11 V+ +In B 5 10 Sense B B NC = No Connection ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage, V+ to V- .................................................................... 40V Input Voltage Range .......................................................................... 80V Output Short-Circuit (to ground)(2) ............................................................ Continuous Operating Temperature ................................................. -55C to +125C Storage Temperature ..................................................... -55C to +125C Junction Temperature .................................................................... +150C Lead Temperature (soldering, 10s) ............................................... +300C PRODUCT PACKAGE Single INA137PA INA137UA 8-Pin DIP SO-8 Surface-Mount 006 182 -40C to +85C -40C to +85C Dual INA2137PA INA2137UA 14-Pin DIP SO-14 Surface-Mount 010 235 -40C to +85C -40C to +85C 9 Out B NC 7 8 Ref B ELECTROSTATIC DISCHARGE SENSITIVITY PACKAGE/ORDERING INFORMATION SPECIFICATION TEMPERATURE RANGE 6 NC = No Connection NOTE: (1) Stresses above these ratings may cause permanent damage. (2) One channel per package. PACKAGE DRAWING NUMBER(1) -In B This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (R) 3 INA137, INA2137 TYPICAL PERFORMANCE CURVES At TA = +25C, VS = 18V, and G = 1/2, unless otherwise noted. TOTAL HARMONIC DISTORTION+NOISE vs FREQUENCY DIM INTERMODULATION DISTORTION vs OUTPUT AMPLITUDE 0.1 5 BW = 100kHz VO = 5Vrms RTO DIM (%) THD+Noise (%) 1 0.010 RL = 100k RL = 2k 0.001 0.1 RL = 2k, 600 0.010 RL = 600 0.001 0.0001 20 100 1k 10k 20k -10 5 10 15 20 HEADROOM - TOTAL HARMONIC DISTORTION+NOISE vs OUTPUT AMPLITUDE HARMONIC DISTORTION PRODUCTS vs FREQUENCY 25 0.001 VO = 1Vrms Amplitude (% of Fundamental) f = 1kHz 0.1 RTO 0.010 RL = 600 0.001 RL = 2k, 100k RL = 2k RL = 600 2nd Harmonic 0.0001 3rd Harmonic RL = 2k 0.00001 RL = 600 ( Noise Limited) 0.000001 0.0001 0 5 10 15 20 25 20 30 100 1k Output Amplitude (dBu) Frequency (Hz) OUTPUT VOLTAGE NOISE SPECTRAL DENSITY vs FREQUENCY OUTPUT NOISE VOLTAGE vs NOISE BANDWIDTH 10k 10k 20k 100 Noise Voltage (Vrms) THD+Noise (%) 0 Output Amplitude (dBu) 1 Voltage Noise (nV/Hz) -5 Frequency (Hz) 1k 100 10 10 1 0.1 1 10 100 1k 10k 100k 1M 1 Frequency (Hz) 100 1k Frequency (Hz) (R) INA137, INA2137 10 4 10k 100k TYPICAL PERFORMANCE CURVES (CONT) At TA = +25C, VS = 18V, and G = 1/2, unless otherwise noted. GAIN vs FREQUENCY COMMON-MODE REJECTION vs FREQUENCY 100 Common-Mode Rejection (dB) 10 Voltage Gain (dB) 0 -10 -20 80 60 RTO 40 -30 1k 10k 100k 1M 10M 1k 10k Frequency (Hz) 100k 1M Frequency (Hz) CHANNEL SEPARATION vs FREQUENCY POWER SUPPLY REJECTION vs FREQUENCY 130 120 RL = 100k 100 80 Channel Separation (dB) Power Supply Rejection (dB) RTO -PSR 60 40 +PSR 20 120 RL = 2k 110 100 Dual Devices 0 90 100 1k 10k 100k 20 1M 100 1k 10k 20k Frequency (Hz) Frequency (Hz) MAXIMUM OUTPUT VOLTAGE vs FREQUENCY INPUT COMMON-MODE VOLTAGE vs OUTPUT VOLTAGE 40 80 G = 1/2 VS = 18V Common-Mode Voltage (V) Output Voltage (Vp-p) 60 30 20 10 40 20 0 -20 -40 -60 VREF = 0V RL = 2k -80 0 100 1k 10k 100k 1M -20 10M -15 -10 -5 0 5 10 15 20 Output Voltage (V) Frequency (Hz) (R) 5 INA137, INA2137 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25C, VS = 18V, and G = 1/2, unless otherwise noted. QUIESCENT CURRENT vs TEMPERATURE SLEW RATE vs TEMPERATURE 4 16 3 14 Slew Rate (V/s) Quiescent Current (mA) -SR 2 1 0 +SR 12 10 8 -75 -50 -25 0 25 50 75 100 125 -75 -50 -25 Temperature (C) 0 25 50 75 100 125 Temperature (C) SHORT-CIRCUIT CURRENT vs TEMPERATURE QUIESCENT CURRENT vs SUPPLY VOLTAGE 80 3 40 Quiescent Current (mA) Short-Circuit Current (mA) 60 +ISC 20 0 -20 -ISC -40 2 1 -60 0 -80 -75 -50 -25 0 25 50 75 100 125 4 8 10 12 14 Supply Voltage (V) OFFSET VOLTAGE PRODUCTION DISTRIBUTION OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION 30 35 Typical Production Distribution of Packaged Units. 25 Percent of Amplifiers (%) 30 25 20 15 10 18 Typical Production Distribution of Packaged Units. 15 10 0 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 5 Offset Voltage Drift (V/C) Offset Voltage (V) (R) INA137, INA2137 16 20 5 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1000 Percent of Amplifiers (%) 6 Temperature (C) 6 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25C, VS = 18V, and G = 1/2, unless otherwise noted. SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 70 17 -55C 60 15 25C 14 50 Overshoot (%) 125C 13 85C 12 -12 85C 125C -13 -14 -15 25C -16 40 30 20 RL = 2k 100mV Step 10 -55C 0 -17 0 20 40 60 0 80 200 400 600 800 1000 1200 Load Capacitance (pF) Output Current (mA) LARGE-SIGNAL STEP RESPONSE CL = 100pF SMALL-SIGNAL STEP RESPONSE CL = 100pF 5V/div 50mV/div Output Voltage Swing (V) 16 CL = 500pF 1s/div 1s/div (R) 7 INA137, INA2137 APPLICATIONS INFORMATION The INA137 and INA2137 have excellent distortion characteristics. THD+Noise is below 0.001% throughout the audio frequency range. Up to approximately 10kHz distortion is below the measurement limit of commonly used test equipment. Furthermore, distortion remains relatively flat over its wide output voltage swing range (approximately 1.7V from either supply). The INA137 and INA2137 are differential line receivers suitable for a wide range of audio and general-purpose applications. Figure 1 shows the basic G = 1/2 (-6dB) differential receiver configuration. The input and feedback resistors can be reversed to achieve G = 2 (+6dB), as shown in Figure 2. For applications requiring G = 1 (0dB), the INA134 and INA2134 are recommended. OFFSET VOLTAGE TRIM Decoupling capacitors are strongly recommended for applications with noisy or high impedance power supplies. The capacitors should be placed close to the device pins as shown in Figure 1. All circuitry is completely independent in the dual version assuring lowest crosstalk and normal behavior when one amplifier is overdriven or short-circuited. The INA137 and INA2137 are laser trimmed for low offset voltage and drift. Most applications require no external offset adjustment. Figure 3 shows an optional circuit for trimming the output offset voltage. The output is referred to the output reference terminal (pin 1), which is normally grounded. A voltage applied to the Ref terminal will be summed with the output signal. This can be used to null offset voltage as shown in Figure 3. The source impedance of a signal applied to the Ref terminal should be less than 10 to maintain good common-mode rejection. As shown in Figure 1, the differential input signal is connected to pins 2 and 3. The source impedances connected to the inputs must be nearly equal to assure good commonmode rejection. A 5 mismatch in source impedance will degrade the common-mode rejection of a typical device to approximately 77dB (RTO). If the source has a known impedance mismatch, an additional resistor in series with the opposite input can be used to preserve good commonmode rejection. INA137 -In V2 R1 R2 2 5 12k 6k 6 V+ V- VO = 2 (V3 - V2) 1F 1F +In 7 4 V3 INA137 R1 -In 2 V2 R3 R4 3 1 12k 6k R2 5 12k FIGURE 2. G = 2 Differential Receiver. 6k 6 VO = 1/2 (V3 - V2) R3 +In 3 V3 G = 1/2 INA137 R4 1 12k 2 V2 6k R2 6k R1 12k 5 6 FIGURE 1. G = 1/2 Differential Receiver (Basic Power Supply and Signal Connections). 20 V3 3 VO R3 12k AUDIO PERFORMANCE R4 6k The INA137 and INA2137 were designed for enhanced ac performance. Very low distortion, low noise, and wide bandwidth provide superior performance in high quality audio applications. Laser-trimmed matched resistors provide optimum common-mode rejection (typically 90dB), especially when compared to circuits implemented with an op amp and discrete precision resistors. In addition, high slew rate (14V/s) and fast settling time (3s to 0.01%) ensure excellent dynamic performance. +15V VO = 1/2 (V3 - V2) Offset Adjustment Range = 1mV 1 250k 100k 10 -15V FIGURE 3. Offset Adjustment. (R) INA137, INA2137 8 INA137 2 6k G=2 12k 5 V1 -In 1 V1 6 6k 1/2 OPA2134 V0 = 2V1 + V2 2 6k INA137 12k 5 R2 12k V2 6 R1 3 V0 0utput R2 FIGURE 4. Precision Summing Amplifier. V2 -In 2 6k 12k 1 5 VO = 2 (1 + 2R2/R1) (V2 -V1) 6 +In 6k 3 +In INA137 12k 1/2 OPA2134 3 12k 6k 3 BUF634 6 FIGURE 6. High Input Impedance Instrumentation Amplifier. VO 1 FIGURE 5. Boosting Output Current. The difference amplifier is a highly versatile building block that is useful in a wide variety of applications. See the INA105 data sheet for additional applications ideas, including: * Precision Voltage-to-Current Converter with Differential Inputs * Differential Input Voltage-to-Current Converter for Low IOUT * Isolating Current Source * Current Receiver with Compliance to Rails * 10V Precision Voltage Reference * 5V Precision Voltage Reference * Differential Output Difference Amplifier * Isolating Current Source with Buffering Amplifier for Greater Accuracy * Window Comparator with Window Span and Window Center Inputs * Precision Voltage-Controlled Current Source with Buffered Differential Inputs and Gain * Precision Average Value Amplifier * Precision Bipolar Offsetting * Precision Summing Amplifier with Gain * Instrumentation Amplifier Guard Drive Generator * Precision Summing Instrumentation Amplifier * Precision Absolute Value Buffer (R) 9 INA137, INA2137 PACKAGE OPTION ADDENDUM www.ti.com 16-Feb-2009 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty INA137PA ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type INA137PAG4 ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type INA137UA ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA137UA/2K5 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA137UA/2K5G4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA137UAG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2137PA ACTIVE PDIP N 14 25 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type INA2137PAG4 ACTIVE PDIP N 14 25 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type INA2137UA ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2137UA/2K5 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2137UA/2K5E4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR INA2137UAE4 ACTIVE SOIC D 14 CU NIPDAU Level-3-260C-168 HR 50 Green (RoHS & no Sb/Br) Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 16-Feb-2009 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant INA137UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 INA2137UA/2K5 SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) INA137UA/2K5 SOIC INA2137UA/2K5 SOIC D 8 2500 346.0 346.0 29.0 D 14 2500 346.0 346.0 33.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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