INA146UAG4

® INA146 INA 146 For most current data sheet and other product information, visit www.burr-brown.com High-Voltage, Programmable Gain DIFFERENCE AMPLIFIER FEATURES DESCRIPTION ● HIGH COMMON-MODE VOLTAGE: +40V at VS = +5V ±100V at VS = ±15V ● DIFFERENTIAL GAIN = 0.1V/V TO 100V/V: Set with External Resistors ● LOW QUIESCENT CURRENT: 570µA ● WIDE SUPPLY RANGE: Single Supply: 4.5V to 36V Dual Supplies: ±2.25V to ±18V ● LOW GAIN ERROR: 0.025% ● HIGH CMR: 80dB ● SO-8 PACKAGE The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 well-suited for both single and dual supply applications. On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors assures continued high precision over temperature. A 10:1 difference amplifier provides 0.1V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100V can be measured. Gains greater than 0.1V/V can be set with an external resistor pair without affecting the common-mode input range. APPLICATIONS ● ● ● ● CURRENT SHUNT MEASUREMENTS SENSOR AMPLIFIER SYNCHRONOUS DEMODULATOR CURRENT AND DIFFERENTIAL LINE RECEIVER ● VOLTAGE-CONTROLLED CURRENT SOURCE ● BATTERY POWERED SYSTEMS ● LOW COST AUTOMOTIVE V+ INSTRUMENTATION The INA146 is available in the SO-8 surface-mount package specified for the extended industrial temperature range, –40°C to +85°C. RG1 7 VIN– 2 RG2 5 R1 100kΩ R2 10kΩ R5 10kΩ (1%) G = 0.1 A2 6 A1 VO + – VO = (VIN – VIN) 0.1 (1 + RG2/RG1) + VIN 3 R4 10kΩ R3 100kΩ INA146 4 V– 1 8 Ref V01 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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 ® ©1999 Burr-Brown Corporation SBOS109 PDS-1491A 1 INA146 Printed in U.S.A. September, 1999 SPECIFICATIONS: VS = ±2.25V to ±18V Dual Supplies At TA = +25°C, G = 0.1, RL = 10kΩ connected to ground and ref pin connected to ground unless otherwise noted. Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. INA146UA PARAMETER CONDITION OFFSET VOLTAGE, VO Input Offset Voltage vs Temperature vs Power Supply vs Time Offset Voltage, V01 INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Over Temperature MIN TYP MAX UNITS ±1 See Typical Curve ±100 ±3 ±1 ±5 mV ±600 µV/V µV/mo mV ±100(3) 80 74 V dB dB ±50 ±5 nA nA 110 91.7 55 kΩ kΩ kΩ 10 550 µVp-p nV/√Hz RTI(1, 2) VOS ∆VOS /∆T PSRR VS = ±15, VCM = VO = 0V VS = ±1.35V to ±18V RTI(1, 2) VCM CMRR INPUT BIAS CURRENT(2) Bias Current Offset Current (VIN+) – (VIN–) = 0V, VO = 0V VCM = 11 (V–) to 11 (V+) = 11, RS = 0Ω 70 64 VCM = VS /2 IB IOS INPUT IMPEDANCE Differential (non-inverting input) Differential (inverting input) Common-Mode NOISE Voltage Noise, f = 0.1Hz to 10Hz Voltage Noise Density, f = 1kHz RTI(1, 4) en GAIN Gain Equation Initial(1) Gain Error vs Temperature G = 0.1 to 100 G = 0.1 • (1 + RG2 /RG1) 0.1 ±0.025 ±0.1 ±1 ±10 ±0.025 ±0.1 ±1 ±10 ±0.001 ±0.01 RL = 100kΩ, VO = (V–)+0.15 to (V+)–1, G = 1 RL = 100kΩ, VO = (V–)+0.25 to (V+)–1, G = 1 RL = 10kΩ, VO = (V–)+0.3 to (V+)–1.25, G = 1 RL = 10kΩ, VO = (V–)+0.5 to (V+)–1.25, G = 1 VO = (V–)+0.3 to (V+)–1.25, G = 1 vs Temperature Nonlinearity FREQUENCY RESPONSE Small Signal Bandwidth G = 0.1 G=1 Slew Rate Settling Time, 0.1% 0.01% Overload Recovery G = 1, 10V Step G = 1, 10V Step 50% Input Overload OUTPUT, VO Voltage Output Over Temperature RL = 100kΩ, G = 1 RL = 100kΩ, G = 1 RL = 10kΩ, G = 1 RL = 10kΩ, G = 1 Continuous to Common Stable Operation Over Temperature Short-Circuit Current Capacitive Load POWER SUPPLY Specified Voltage Range, Dual Supplies Operating Voltage Range Quiescent Current Over Temperature TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance 550 50 0.45 40 80 40 (V–) + 0.15 (V–) + 0.25 (V–) + 0.3 (V–) + 0.5 VIN = 0, IO = 0 ±570 –40 –55 –55 θJA kHz kHz V/µs µs µs µs (V+) – 1 (V+) – 1 (V+) – 1.25 (V+) – 1.25 V V V V mA pF ±18 ±18 ±700 ±750 V V µA µA +85 +125 +125 °C °C °C °C/W ±15 1000 ±2.25 ±1.35 150 V/V V/V % ppm / °C % ppm / °C % of FS NOTES: (1) Overall difference amplifier configuration. Referred to input pins (VIN+ and VIN–), gain = 0.1V/V. Specified with 10kΩ in feedback of A2. (2) Input offset voltage specification includes effects of amplifier’s input bias and offset currents. (3) Common-mode voltage range is 11 (V–) to 11 [(V+) – 1] with a maximum of ±100V. (4) Includes effects of input current noise and thermal noise contribution of resistor network. 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. ® INA146 2 SPECIFICATIONS: VS = +5V Single Supply At TA = +25°C, G = 1, RL = 10kΩ connected to VS /2 and Ref pin connected to VS /2 unless otherwise noted. Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. INA146UA PARAMETER CONDITION OFFSET VOLTAGE, VO Input Offset Voltage VOS vs Temperature ∆VOS /∆T vs Power Supply Rejection Ratio PSRR vs Time INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio Over Temperature INPUT BIAS CURRENT(2) Bias Current Offset Current VCM CMRR MIN VCM = VO = 0V VS = ±1.35V to ±18V VIN+ – VIN– = 0V, VO = 0V VCM = –25V to +19V, RS = 0Ω –25 70 64 IB IOS INPUT IMPEDANCE Differential (non-inverting input) Differential (inverting input) Common-Mode NOISE Voltage Noise, f = 0.1Hz to 10Hz Voltage Noise Density, f = 1kHz MAX UNITS ±3 See Typical Curve ±100 ±3 ±10 mV ±600 µV/ °C µV/mo 19 80 74 V dB dB ±50 ±5 nA nA 110 91.7 55 kΩ kΩ kΩ 10 550 µVp-p nV/√Hz RTI(1, 3, 4) en GAIN Gain Equation Initial(1) Gain Error vs Temperature G = 0.1 to 100 G = 0.1 • (1 + RG2 /RG1) 0.1 ±0.025 ±0.1 ±1 ±10 ±0.025 ±0.1 ±1 ±10 ±0.001 ±0.01 RL = 100kΩ, VO = 0.15V to 4V, G = 1 RL = 100kΩ, VO = 0.25V to 4V, G = 1 RL = 10kΩ, VO = 0.3V to 3.75V, G = 1 RL = 10kΩ, VO = 0.5V to 3.75V, G = 1 VO = +0.3 to +3.75, G = 1 vs Temperature Nonlinearity FREQUENCY RESPONSE Small Signal Bandwidth G = 0.1 G=1 Slew Rate Settling Time, 0.1% 0.01% Overload Recovery 550 50 0.45 40 80 40 G = 1, 10V Step G = 1, 10V Step 50% Input Overload OUTPUT, VO Voltage Output Over Temperature RL = 100kΩ, G = 1 RL = 100kΩ, G = 1 RL = 10kΩ, G = 1 RL = 10kΩ, G = 1 Continuous to Common Stable Operation Over Temperature Short-Circuit Current Capacitive Load POWER SUPPLY Voltage Range, Dual Supplies Voltage Range, Single Supply Quiescent Current Over Temperature TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance TYP RTI(1, 2) 0.15 0.25 0.3 0.5 VIN = 0, IO = 0 ±570 –40 –55 –55 θJA kHz kHz V/µs µs µs µs 4 4 3.75 3.75 V V V V mA pF ±18 ±36 ±700 ±750 V V µA µA +85 +125 +125 °C °C °C °C/W ±15 1000 ±2.25 ±4.5 V/V V/V V/V % ppm / °C % ppm / °C % of FS 150 NOTES: (1) Overall difference amplifier configuration. Referred to input pins (VIN+ and VIN–), gain = 0.1V/V. Specified with 10kΩ in feedback of A2. (2) Input offset voltage specification includes effects of amplifier’s input bias and offset currents. (3) Includes effects of input current noise and thermal noise contribution of resistor network. (4) Common-mode voltage range is 11 (V–) to 11 [(V+) – 1] with a maximum of ±100V. ® 3 INA146 AMPLIFIER A1, A2 PERFORMANCE At TA = +25°C, G = 0.1, RL = 10kΩ connected to ground and Ref pin, unless otherwise noted. Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. INA146UA PARAMETER CONDITION OFFSET VOLTAGE, VO Input Offset Voltage vs Temperature MIN TYP MAX UNITS VOS ∆VOS /∆T RTI(1, 2) VS = ±15V, VCM = VO = 0V TA = –40°C to +85°C ±0.5 ±1 mV µV/°C VCM CMRR VIN+ – VIN– = 0V, VO = 0V VCM = (V–) to (V+) –1 (V–) to (V+) –1 90 V dB AOL 110 dB IB IOS ±50 ±5 nA nA 10 ±1 ±100 kΩ % ppm/°C INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio OPEN-LOOP GAIN Open Loop Gain INPUT BIAS CURRENT(2) Bias Current Offset Current RESISTOR AT A1 OUTPUT, VO1 Initial Error Temperature Drift Coefficient ELECTROSTATIC DISCHARGE SENSITIVITY PIN CONFIGURATION Top View SO-8 Ref 1 8 VO1 – VIN 2 7 V+ + VIN 3 6 VO V– 4 5 RG 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. ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage, V+ to V– .................................................................... 36V Signal Input Terminals, Voltage ...................................................... ±100V Current ....................................................... ±1mA Output Short Circuit (to ground) .............................................. Continuous Operating Temperature .................................................. –55°C to +125°C Storage Temperature ..................................................... –55°C to +150°C Junction Temperature .................................................................... +150°C Lead Temperature (soldering, 10s) ............................................... +240°C NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. PACKAGE/ORDERING INFORMATION PRODUCT PACKAGE PACKAGE DRAWING NUMBER(1) INA146UA " SO-8 " 182 " SPECIFIED TEMPERATURE RANGE PACKAGE MARKING ORDERING NUMBER(2) TRANSPORT MEDIA –40°C to +85°C " INA146UA " INA146UA INA146UA/2K5 Rails Tape and Reel NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book, or visit the Burr-Brown web site at www.burr-brown.com. (2) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “INA146UA/2K5” will get a single 2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book. ® INA146 4 TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = ±15V, G = 0.1, RL = 10kΩ connected to ground and Ref pin connected to ground, unless otherwise noted. GAIN vs FREQUENCY GAIN vs FREQUENCY 40 40 VS = ±15V CL = 1000pF G = 10 20 G=1 Voltage Gain (dB) Voltage Gain (dB) 20 0 –20 0 G=1 –20 G = 0.1 G = 0.1 –40 –40 100 1K 10K 100K 1M 100 10M 1K 10K 100K 1M 10M Frequency (Hz) Frequency (Hz) POWER SUPPLY REJECTION vs FREQUENCY COMMON-MODE REJECTION vs FREQUENCY 100 Power Supply Rejection (dB) 100 Common-Mode Rejection (dB) VS = ±15V CL = 200pF 10kΩ G = 10 80 60 40 20 PSR+ (VS = ±15V) 80 PSR+ (VS = +5V) 60 40 20 PSR– (VS = ±15V) 0 0 10 100 1k 10k 100k 1M 1 10M 10 100 1k 10k Frequency (Hz) Frequency (Hz) INPUT VOLTAGE NOISE DENSITY 0.1Hz to 10Hz VOLTAGE NOISE (RTI) 100k G = 0.1 2µV/div Input Voltage Noise (nV/√Hz 10k 1k G = 10 G=1 100 0.1 1 10 100 1k 10k 100k 500ms/div Frequency (Hz) ® 5 INA146 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, VS = ±15V, G = 0.1, RL = 10kΩ connected to ground and Ref pin connected to ground, unless otherwise noted. QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT vs TEMPERATURE SLEW RATE vs TEMPERATURE IQ (µA) ISC 0.6 18 0.55 630 16 610 14 590 12 10 570 IQ 550 8 G=1 0.5 Sew Rate (V/µs) G=1 650 20 ISC (mA) 670 0.45 0.4 0.35 530 6 510 4 490 2 0.25 0 0.2 470 –60 –40 –20 20 0 40 60 80 0.3 100 120 140 –60 –40 –20 0 Temperature (°C) 40 60 80 100 120 140 SETTLING TIME vs LOAD CAPACITANCE 120 TS vs CLOAD G Φ –90 RL = 10kΩ || 1nF –135 0.01%, G = 1 VS = ±15V 100 RL = 10kΩ || 200pF Settling Time (µs) 110 100 90 80 70 60 50 40 30 20 10 0 –10 Phase (°) Open-Loop Gain (dB) GAIN AND PHASE vs FREQUENCY Op Amp A1 and A2 80 60 0.1%, G = 0.1 40 0.1%, G = 1 20 0 –180 1 10 100 1k 10k 100k 1 1M 3 MAXIMUM OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 30 100 OFFSET VOLTAGE PRODUCTION DISTRIBUTION 15 25 +85°C VS = ±2.25V 10 +125°C Percent of Amplifiers (%) –25°C +25°C 5 +85°C 0 10 Load Capacitance (nF) Frequency (Hz) –55°C +125°C –5 +25°C –25°C +85°C –10 20 Typical production distribution of packaged units. 15 10 5 –15 0 2 4 6 8 10 12 14 0 16 Output Current (mA) < –10 < –9 < –8 < –7 < –6 < –5 < –4 < –3 < –2 < –1