® INA133 INA2133 INA2133 INA133 For most current data sheet and other product information, visit www.burr-brown.com High-Speed, Precision DIFFERENCE AMPLIFIERS FEATURES APPLICATIONS l DESIGNED FOR LOW COST l DIFFERENTIAL INPUT AMPLIFIER l SINGLE, DUAL VERSIONS BUILDING BLOCK l LOW OFFSET VOLTAGE DRIFT: l DIFF IN/DIFF OUT AMPLIFIER – 450m V max, – 5m V/(cid:176) C max l UNITY-GAIN INVERTING AMPLIFIER l LOW GAIN ERROR: 0.05% max l GAIN = +1/2 OR G = +2 AMPLIFIER l WIDE BANDWIDTH: 1.5MHz l SUMMING AMPLIFIER l HIGH SLEW RATE: 5V/m s l SYNCHRONOUS DEMODULATOR l FAST SETTLING TIME: 5.5m s to 0.01% l CURRENT/DIFFERENTIAL LINE RECEIVER l LOW QUIESCENT CURRENT: 950m A l VOLTAGE-CONTROLLED CURRENT SOURCE l WIDE SUPPLY RANGE: – 2.25V to – 18V l BATTERY POWERED SYSTEMS l SO-8 and SO-14 PACKAGES l LOW COST AUTOMOTIVE DESCRIPTION The differential amplifier is the foundation of many commonly used circuits. The low cost INA133 and The INA133 and INA2133 are high slew rate, unity- INA2133 provide this precision circuit function without gain difference amplifiers consisting of a precision op using an expensive precision network. amp with a precision resistor network. The on-chip The single version, INA133, package is the SO-8 surface resistors are laser trimmed for accurate gain and high mount. The dual version, INA2133, package is the SO-14 common-mode rejection. Excellent TCR tracking of the surface mount. Both are specified for operation over the resistors maintains gain accuracy and common-mode extended industrial temperature range, –40(cid:176) C to +85(cid:176) C. rejection over temperature. They operate over a wide Operation is from –55(cid:176) C to +125(cid:176) C. supply range, – 2.25V to – 18V (+4.5V to +36V single supply), and input common-mode voltage range extends V+ beyond the positive and negative supply rails. 11 25kW 25kW 2 12 –In A Sense A V+ 7 A 13 Out A 25kW 25kW –In 2 5 Sense 25kW 25kW 3 14 +In A Ref A 6 25kW 25kW Output 6 10 –In B Sense B 25kW 25kW +In 3 1 Ref B 9 Out B INA133 4 25kW 25kW 5 8 +In B Ref B V– INA2133 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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 ©1999 Burr-Brown Corporation PDS-1530A Printed in U.S.A. June, 1999 SBOS115

– SPECIFICATIONS: V = 15V S At T = +25(cid:176)C, V = – 15V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L INA133U INA133UA INA2133U INA2133UA PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS OFFSET VOLTAGE(1) RTO Initial(1) V = 0V – 150 – 450 [ – 900 m V CM vs Temperature T = –40(cid:176)C to +85(cid:176)C – 2 – 5 See Typical Curve m V/(cid:176)C A vs Power Supply V = – 2.25V to – 18V – 10 – 30 900 – 50 m V/V S vs Time 0.3 [ m V/(cid:214) mo Channel Separation (dual) dc 120 [ dB INPUT IMPEDANCE(2) Differential 50 [ kW Common-Mode V = 0V 25 [ kW CM INPUT VOLTAGE RANGE Common-Mode Voltage Range Positive V = 0V 2(V+) –3 2(V+) –2 [ [ V O Negative V = 0V 2(V–) +3 2(V–) +2 [ [ V O Common-Mode Rejection Ratio V = –27V to +27V, R = 0W 80 90 74 [ dB CM S OUTPUT VOLTAGE NOISE(3) RTO f = 0.1Hz to 10Hz 2 [ m Vp-p f = 10Hz 80 [ nV/(cid:214) Hz f = 100Hz 60 [ nV/(cid:214) Hz f = 1kHz 57 [ nV/(cid:214) Hz GAIN Initial 1 [ V/V Error V = –14V to +13.5V – 0.02 – 0.05 [ – 0.1 % O vs Temperature T = –40(cid:176)C to +85(cid:176)C – 1 – 10 [ [ ppm/(cid:176)C A Nonlinearity V = –14V to +13.5V – 0.0001 – 0.001 [ – 0.002 % of FS O OUTPUT Voltage Output Gain Error < 0.1% Positive R = 10kW to Ground (V+) –1.5 (V+)–1.3 [ [ V L Negative R = 10kW to Ground (V–) +1 (V–)+0.8 [ [ V L Positive R = 100kW to Ground (V+)–0.8 [ V L Negative R = 100kW to Ground (V–)+0.3 [ V L Current Limit, Continuous-to-Common –25/+32 [ mA Capacitive Load (stable operation) 1000 [ pF FREQUENCY RESPONSE Small-Signal Bandwidth –3dB 1.5 [ MHz Slew Rate 5 [ V/m s Settling Time: 0.1% 10V Step, C = 100pF 4 [ m s L 0.01% 10V Step, C = 100pF 5.5 [ m s L Overload Recovery Time 50% Overdrive 4 [ m s POWER SUPPLY Rated Voltage – 15 [ V Operating Voltage Range Dual Supplies – 2.25 – 18 [ [ V Single Supply +4.5 +36 [ [ V Quiescent Current (per amplifier) I = 0 – 0.95 – 1.2 [ [ mA O TEMPERATURE RANGE Specification –40 +85 [ [ (cid:176)C Operation –55 +125 [ [ (cid:176)C Storage –55 +125 [ [ (cid:176)C Thermal Resistance q JA SO-8 Surface Mount 150 [ (cid:176)C/W SO-14 Surface Mount 100 [ (cid:176)C/W [ Specifications the same as INA133U, INA2133U. NOTES: (1) Includes the effects of amplifier’s input bias and offset currents. (2) 25kW resistors are ratio matched but have – 20% absolute value. (3) Includes effects of amplifier’s 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. ® INA133, INA2133 2

– SPECIFICATIONS: V = 5V S At T = +25(cid:176)C, V = – 5V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L INA133U INA133UA INA2133U INA2133UA PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS OFFSET VOLTAGE(1) RTO Initial(1) V = 0V – 300 – 750 [ – 1500 m V CM vs Temperature – 2 [ m V/(cid:176)C INPUT VOLTAGE RANGE Common-Mode Voltage Range Positive V = 0V 2(V+) –3 2(V+) –2 [ [ V O Negative V = 0V 2(V–) +3 2(V–) +2 [ [ V O Common-Mode Rejection Ratio V = –7V to +7V, R = 0W 80 90 74 [ dB CM S GAIN Initial 1 [ V/V Gain Error V = –4V to 3.5V – 0.02 – 0.05 [ – 0.1 % O Nonlinearity V = –4V to 3.5V – 0.0001 – 0.001 [ – 0.002 % of FS O OUTPUT Voltage Output Gain Error < 0.1% Positive R = 10kW to Ground (V+) –1.5 (V+) –1.3 [ [ V L Negative R = 10kW to Ground (V–) +1 (V–) +0.8 [ [ V L Positive R = 100kW to Ground (V+) –0.8 [ V L Negative R = 100kW to Ground (V–) +0.3 [ V L POWER SUPPLY Rated Voltage – 15 [ V Operating Voltage Range Dual Supplies – 2.25 – 18 [ [ V Single Supply +4.5 +36 [ [ V Quiescent Current (per amplifier) I = 0 – 0.92 – 1.2 [ [ mA O [ Specifications the same as INA133U, INA2133U. NOTES: (1) Includes the effects of amplifier’s input bias and offset currents. ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC DISCHARGE SENSITIVITY Supply Voltage, V+ to V–....................................................................36V Input Voltage Range........................................................................2 • V S Output Short-Circuit (to ground)(2)..........................................Continuous This integrated circuit can be damaged by ESD. Burr-Brown Operating Temperature..................................................–55(cid:176)C to +125(cid:176)C recommends that all integrated circuits be handled with ap- Storage Temperature.....................................................–55(cid:176)C to +125(cid:176)C Junction Temperature....................................................................+150(cid:176)C propriate precautions. Failure to observe proper handling and Lead Temperature (soldering, 10s)...............................................+300(cid:176)C installation procedures can cause damage. NOTES: (1) Stresses above these ratings may cause permanent damage. ESD damage can range from subtle performance degradation Exposure to absolute maximum conditions for extended periods may degrade to complete device failure. Precision integrated circuits may device reliability. (2) One channel per package. be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION PACKAGE SPECIFIED DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE NUMBER(1) RANGE MARKING NUMBER(2) MEDIA Single INA133U SO-8 Surface Mount 182 –40(cid:176)C to +85(cid:176)C INA133U INA133U Rails " " " " " INA133U/2K5 Tape and Reel INA133UA SO-8 Surface Mount 182 –40(cid:176)C to +85(cid:176)C INA133UA INA133UA Rails " " " " " INA133UA/2K5 Tape and Reel Dual INA2133U SO-14 Surface Mount 235 –40(cid:176)C to +85(cid:176)C INA2133U INA2133U Rails " " " " " INA2133U/2K5 Tape and Reel INA2133UA SO-14 Surface Mount 235 –40(cid:176)C to +85(cid:176)C INA2133UA INA2133UA Rails " " " " " INA2133UA/2K5 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. (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 “INA133UA/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. ® 3 INA133, INA2133

PIN CONFIGURATIONS Top View SO-8 Top View SO-14 INA2133 INA133 NC 1 14 Ref A Ref 1 8 NC –In A 2 13 Out A A –In 2 7 V+ +In A 3 12 Sense A +In 3 6 Output V– 4 11 V+ V– 4 5 Sense +In B 5 10 Sense B B –In B 6 9 Out B NC = No Connection NC 7 8 Ref B NC = No Connection ® INA133, INA2133 4

TYPICAL PERFORMANCE CURVES At T = +25(cid:176)C, V = – 15V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L GAIN vs FREQUENCY COMMON-MODE REJECTION vs FREQUENCY 10 100 +125°C +25°C 0 B) 90 d n (dB) –10 –55°C ction ( 80 Gai eje op –20 e R 70 o d L o Closed- –30 mmon-M 60 –40 o 50 V = – 15V or – 5V C V = – 15V or – 5V S S –50 40 10k 100k 1M 10M 100 1k 10k 100k 1M Frequency (Hz) Frequency (Hz) POWER SUPPLY REJECTION vs FREQUENCY CHANNEL SEPARATION vs FREQUENCY 120 130 dB) 100 B) 120 on ( –PSRR n (d ecti 80 atio Rej par 110 Supply 60 nnel Se er +PSRR ha 100 w 40 C o P INA2133 20 90 1 10 100 1k 10k 100k 100 1k 10k 100k Frequency (Hz) Frequency (Hz) INPUT COMMON-MODE VOLTAGE TOTAL HARMONIC DISTORTION+NOISE vs OUTPUT VOLTAGE vs FREQUENCY 40 0.1 V = – 15V S 500kHz Filter 30 e (V) 20 g Volta 10 %) Mode 0 D+N ( 0.01 on- –10 TH m m –20 V = – 5V o S C –30 –40 0.001 –15 –10 –5 0 5 10 15 20 100 1k 10k 20k Output Voltage (V) Frequency (Hz) ® 5 INA133, INA2133

TYPICAL PERFORMANCE CURVES (CONT) At T = +25(cid:176)C, V = – 15V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L 0.1Hz TO 10Hz PEAK-TO-PEAK VOLTAGE NOISE VOLTAGE NOISE DENSITY vs FREQUENCY 1000 z) H (cid:214)V/ n v se ( 100 V/di Noi m1 e g a olt V 10 1 10 100 1k 10k 500m s/div Frequency (Hz) QUIESCENT CURRENT vs TEMPERATURE SLEW RATE vs TEMPERATURE 1400 7 Per Amplifier VS = – 15V –SR 1300 VS = – 5V A) 1200 6 µ nt Current ( 11100000 µRate (V/s) 5 uiesce 900 Slew 4 +SR Q 800 700 3 –75 –50 –25 0 25 50 75 100 125 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) Temperature (°C) SHORT-CIRCUIT CURRENT vs TEMPERATURE OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 40 (V+) V = – 15V –40°C S V = – 5V S (V+) –5 35 +I SC 85°C 25°C A| V) (V+) –10 Short-Circuit |m 3205 +I –ISC Output Voltage ( (V–) +100 258°5C°C 20 SC (V–) +5 –I –40°C SC 15 V– –75 –50 –25 0 25 50 75 100 125 0 – 5 – 10 – 15 – 20 – 25 – 30 – 35 Temperature (°C) Output Current (mA) ® INA133, INA2133 6

TYPICAL PERFORMANCE CURVES (CONT) At T = +25(cid:176)C, V = – 15V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L OFFSET VOLTAGE PRODUCTION DISTRIBUTION OFFSET VOLTAGE PRODUCTION DISTRIBUTION V = – 15V V = – 5V S S 35 30 Typical production Typical production 30 distribution of 25 distribution of packaged units. packaged units. %) 25 Singles and duals %) Singles and duals s ( included. s ( 20 included. nit 20 nit U U of of 15 nt 15 nt e e c c 10 er 10 er P P 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 4 2 0 8 6 4 2 2 4 6 8 0 2 4 – – – – – – –O–ffse–t Voltage (µV) –1 –1 –1 – – O–ffse–t Voltage (µV) 1 1 1 OFFSET VOLTAGE DRIFT OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION PRODUCTION DISTRIBUTION V = – 15V V = – 5V S S 50 60 Typical production Typical production 45 distribution of distribution of 50 40 packaged units. packaged units. %) 35 Singles and duals %) Singles and duals nits ( 30 included. nits ( 40 included. U U of 25 of 30 nt 20 nt e e c c 20 er 15 er P P 10 10 5 0 0 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 Offset Voltage Drift (µV/°C) Offset Voltage Drift (µV/°C) SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE SETTLING TIME vs LOAD CAPACITANCE 60 14 50 VVSS == –– 51V5V –Overshoot 12 VVS == –– 155VV S +Overshoot 10 %) 40 µs) ot ( –Overshoot me ( 8 ho 30 Ti 0.01% ers ng 6 Ov 20 Settli 4 +Overshoot 10V Step 10 2 0.1% 0 0 100 1k 10k 100k 100 1k 10k Load Capacitance (pF) Capacitive Load (pF) ® 7 INA133, INA2133

TYPICAL PERFORMANCE CURVES (CONT) At T = +25(cid:176)C, V = – 15V, R = 10kW connected to ground, and reference pin connected to ground, unless otherwise noted. A S L SMALL-SIGNAL STEP RESPONSE LARGE-SIGNAL STEP RESPONSE CL = 100pF CL = 1000pF v V/di div m V/ 0 2 0 1 C = 1000pF L 2.5m s/div 2.5m s/div MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 32 V = – 15V S V) 28 ge ( 24 a Volt 20 ut utp 16 O ak 12 Pe VS = – 5V o- 8 k-t ea 4 P 0 10k 100k 1M Frequency (Hz) ® INA133, INA2133 8

APPLICATIONS INFORMATION changed, pins 2 and 5 must also be interchanged to maintain proper ratio matching. The INA133 and INA2133 are high-speed difference ampli- fiers suitable for a wide range of general purpose applica- OPERATING VOLTAGE tions. Figure 1 shows the basic connections required for operation of the INA133. Decoupling capacitors are strongly The INA133 and INA2133 operate from single (+4.5V to recommended in applications with noisy or high impedance +36V) or dual (– 2.25V to – 18V) supplies with excellent power supplies. The capacitors should be placed close to the performance. Specifications are production tested with – 5V device pins as shown in Figure 1. All circuitry is completely and – 15V supplies. Most behavior remains unchanged independent in the dual version assuring lowest crosstalk throughout the full operating voltage range. Parameters which and normal behavior when one amplifier is overdriven or vary significantly with operating voltage are shown in the short-circuited. Typical Performance Curves. As shown in Figure 1, the differential input signal is con- nected to pins 2 and 3. The source impedances connected to INPUT VOLTAGE the inputs must be nearly equal to assure good common- The INA133 and INA2133 can accurately measure differen- mode rejection. A 5W mismatch in source impedance will tial signals that are above and below the supply rails. Linear degrade the common-mode rejection of a typical device to common-mode range extends from 2 • (V+)–3V to 2 • (V–) approximately 80dB (a 10W mismatch degrades CMR to +3V (nearly twice the supplies). See the typical performance 74dB). If the source has a known impedance mismatch, an curve, “Input Common-Mode Voltage vs Output Voltage.” additional resistor in series with the opposite input can be used to preserve good common-mode rejection. OFFSET VOLTAGE TRIM The INA133’s internal resistors are accurately ratio trimmed The INA133 and INA2133 are laser trimmed for low offset to match. That is, R is trimmed to match R and R is 1 2 3 voltage and drift. Most applications require no external offset trimmed to match R . However, the absolute values may not 4 adjustment. Figure 2 shows an optional circuit for trimming be equal (R + R may be slightly different than R + R ). 1 2 3 4 the output offset voltage. The output is referred to the output Thus, large series resistors on the input (greater than 250W ), reference terminal (pin 1), which is normally grounded. A even if well matched, will degrade common-mode rejection. voltage applied to the Ref terminal will be summed with the Circuit board layout constraints might suggest possible varia- output signal. This can be used to null offset voltage as tions in connections of the internal resistors. For instance, it shown in Figure 2. The source impedance of a signal applied appears that pins 1 and 3 could be interchanged. However, to the Ref terminal should be less than 10W to maintain good because of the ratio trimming technique used (see paragraph common-mode rejection. above) CMRR will be degraded. If pins 1 and 3 are inter- INA133 V– V+ R1 R2 2 5 V 1µF 1µF 2 4 7 6 V INA133 O R R 1 2 V2–In 2 25kW 25kW 5 V3 10W 3 R3 R 6 4 +15V V = V –V OUT 3 2 Gain Error = – 0.01% +In 3 25Rk3W 25Rk4W 1 CNMonRli n=e a9r0itdyB = – 0.0001% VOOff s=e Vt A3 d–j Vus2tment 1 150kW 100kW V Range = – 1mV 3 10W –15V FIGURE 1. Precision Difference Amplifier (Basic Power FIGURE 2. Offset Adjustment. Supply and Signal Connections). ® 9 INA133, INA2133

TYPICAL APPLICATIONS V 1 INA133 –In A1 V+ 3 V+ 2 5 INA133 R 2 2 6 5 R 1 R2 VO 7 3 1 6 V = (V+)/2 O A V 2 2 +In V = (1 + 2R/R) (V –V) O 2 1 2 1 Common 1 4 Common The INA133 can be combined with op amps to form a complete instrumenta- tion amplifier with specialized performance characteristics. Burr-Brown offers many complete high performance IAs. Products with related performances are shown at the right in the table below. FIGURE 5. Pseudoground Generator. SIMILAR COMPLETE A, A FEATURE BURR-BROWN IA 1 2 OPA2227 Low Noise INA103 OPA129 Ultra Low Bias Current (fA) INA116 INA133 OPA2277 Low Offset Drift, Low Noise INA114, INA128 OPA2130 Low Power, FET-Input (pA) INA121 2 5 V OPA2234 Single Supply, Precision, Low Power INA122, INA118 2 OPA2237 Single Supply, Low Power, MSOP-8 INA122, INA126 6 FIGURE 3. Precision Instrumentation Amplifier. V = –V O 2 INA133 2 5 100W (1) 1 3 Gain Error = 0.05% maximum 1% Nonlinearity = 0.001% maximum V– 6 Gain Drift = 1ppm/°C V 100W (1) 0 to 02V 1% 3 1 FIGURE 6. Precision Unity-Gain Inverting Amplifier. I IN 0 to 20mA NOTE: (1) Input series resistors should be less than 250W (1% max mismatch) to maintain excellent CMR. With 100W resistors, gain error is increased to 0.5%. FIGURE 4. Current Receiver with Compliance to Rails. ® INA133, INA2133 10

INA133 INA133 2 2 5 5 6 V = 2 •V 1 O 1 6 V V = 3 3 O 2 V1 V3 – 0.05% max 3 1 Gain Error = 0.025% maximum Gain Drift = 2ppm/°C FIGURE 7. Precision Gain = 2 Amplifier. FIGURE 8. Precision Gain = 1/2 Amplifier. INA133 INA133 2 5 2 5 6 (V + V) 6 V1 1 – 0.0V5O% = ma1x 2 3 V1 1 – 0.0V5O% = mVa1 x+ V3 V3 3 V3 3 FIGURE 9. Precision Average Value Amplifier. FIGURE 10. Precision Summing Amplifier. INA133 2 5 R R 1 2 6 Output (1) 1 2 5 INA133 3 Ref Device Output 6 VFC320 0-10kHz V 1 O VFC100 0-FCLOCK/2 V1 DAC80 0-FS (12 bits) DAC703 0-FS (16 bits) XTR110 4-20mA V OPA277 3 3 Ref must be driven VO = ( 1 + RR 2 )( V 1 +2 V 3 ) SFeoer IGN A= 11403,. by low impedance. 1 Voltage Source NOTE: (1) Unipolar Input Device. FIGURE 11. Precision Bipolar Offsetting. FIGURE 12. Precision Summing Amplifier with Gain. ® 11 INA133, INA2133

1 Noise (60Hz hum) INA115 4 A1 2 Transducer or Analog Signal 25kW Feedback 12 3 25kW 25kW RG A3 11 Output 14 50kW 25kW 25kW G = 1 + R G 15 A2 25kW 5 Noise (60Hz hum) 100kW Shield 13 7 8 10 Ref V+ V– 3 INA133 2 5 6 1 FIGURE 13. Instrumentation Amplifier Guard Drive Generator. 1/2 INA2133 2 12 1/2 INA2133 13 6 10 A 3 V 1 9 V2 14 5 B VO = V3 + V4 – V1 – V2 V 3 V 4 8 FIGURE 14. Precision Summing Instrumentation Amplifier. ® INA133, INA2133 12

INA133 1/2 INA2133 2 5 V 2 R 2 12 6 R 13 V A V 1 01 3 1 V 1 3 14 I = (V – V) (1/25k + 1/R) O 1 2 Load I O V 2 1/2 INA2133 FIGURE 15. Precision Voltage-to-Current Converter with Differential Inputs. 6 10 INA133 9 B V 2 5 02 V 2 5 8 6 R V 3 OPA131 V01 – V02 = 2 (V2 – V1) 3 1 FIGURE 18. Differential Output Difference Amplifier. I Load O I = (V – V)/R O 3 2 INA133 FIGURE 16. Differential Input Voltage-to-Current Con- V 2 5 2 verter for Low I . OUT 6 INA133 R (R ‡ 200W ) 2 5 V 3 1 2 V 3 Gate can be R +V –5V CC 6 R < 200W 3 1 R Gate can be IO =(V3 R– V2) Load IO V 3 +V –5V S IO = (V3 – V2) (1/25k + 1/R) Load I FIGURE 19. Isolating Current Source with Buffering Am- O plifier for Greater Accuracy. FIGURE 17. Isolating Current Source. ® 13 INA133, INA2133

+5V 7 V S INA133 2 5 Transducer or 6 12 Bits Analog ADS7806 Out Signal 3 1 0V-4V Input 4 –5V Eliminates errors due to different grounds. FIGURE 20. Differential Input Data Acquisition. INA133 2 5 V 1 DG188 6 VO 3 1 Logic In V O Logic 1 0 –V1 In 1 +V 1 FIGURE 21. Digitally Controlled Gain of – 1 Amplifier. INA133 R R 2 1 2 5 10pF D 1 6 3 R3 V0 = |V1| D R 2 4 OPA130 V 1 1 Input R 5 2kW FIGURE 22. Precision Absolute Value Buffer. ® INA133, INA2133 14

+15V 2 6 +10V Out INA133 BUF634 inside feedback loop contributes no error. REF102 INA133 –In 2 5 2 5 –10V Out 6 BUF634 V 4 O 6 1 R 3 1 L +In 3 FIGURE 23. – 10V Precision Voltage Reference. FIGURE 24. High Output Current Precision Difference Amplifier. V+ 12.5kW 1kW 0V to 10V In 50kW 7 INA133 2 5 +15V OPA227 2 V2 25kW 25kW R 1 6 50.1W 2N3904 6 REF102 For 4-20mA applications, Set R = R 10V 1 2 the REF102 sets the 4mA low-scale output for 0V input. 25kW 25kW 50R.12W 3 1 V 3 4 R 4 LOAD I = 4 to 20mA O 1 1 I = V – V + O 3 2 2 5 k W R 2 FIGURE 25. Precision Voltage-to-Current Conversion. ® 15 INA133, INA2133

PACKAGE OPTION ADDENDUM www.ti.com 4-Sep-2009 PACKAGING INFORMATION OrderableDevice Status(1) Package Package Pins Package EcoPlan(2) Lead/BallFinish MSLPeakTemp(3) Type Drawing Qty INA133U ACTIVE SOIC D 8 75 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA133U/2K5 ACTIVE SOIC D 8 2500 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA133U/2K5E4 ACTIVE SOIC D 8 2500 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA133UA ACTIVE SOIC D 8 75 Green(RoHS& CallTI Level-3-260C-168HR noSb/Br) INA133UA/2K5 ACTIVE SOIC D 8 2500 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA133UA/2K5E4 ACTIVE SOIC D 8 2500 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA133UAE4 ACTIVE SOIC D 8 75 Green(RoHS& CallTI Level-3-260C-168HR noSb/Br) INA133UE4 ACTIVE SOIC D 8 75 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133U ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133U/2K5E4 OBSOLETE SOIC D 14 TBD CallTI CallTI INA2133UA ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133UA/2K5E4 OBSOLETE SOIC D 14 TBD CallTI CallTI INA2133UAE4 ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133UAG4 ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133UE4 ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) INA2133UG4 ACTIVE SOIC D 14 50 Green(RoHS& CUNIPDAU Level-3-260C-168HR noSb/Br) (1)Themarketingstatusvaluesaredefinedasfollows: ACTIVE:Productdevicerecommendedfornewdesigns. LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect. NRND:Notrecommendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartin anewdesign. PREVIEW:Devicehasbeenannouncedbutisnotinproduction.Samplesmayormaynotbeavailable. OBSOLETE:TIhasdiscontinuedtheproductionofthedevice. (2)EcoPlan-Theplannedeco-friendlyclassification:Pb-Free(RoHS),Pb-Free(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheck http://www.ti.com/productcontentforthelatestavailabilityinformationandadditionalproductcontentdetails. TBD:ThePb-Free/Greenconversionplanhasnotbeendefined. Pb-Free(RoHS):TI'sterms"Lead-Free"or"Pb-Free"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirements forall6substances,includingtherequirementthatleadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesoldered athightemperatures,TIPb-Freeproductsaresuitableforuseinspecifiedlead-freeprocesses. Pb-Free(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieand package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible)asdefinedabove. Green(RoHS&noSb/Br):TIdefines"Green"tomeanPb-Free(RoHScompatible),andfreeofBromine(Br)andAntimony(Sb)basedflame retardants(BrorSbdonotexceed0.1%byweightinhomogeneousmaterial) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Addendum-Page1

PACKAGE OPTION ADDENDUM www.ti.com 4-Sep-2009 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 incomingmaterialsandchemicals.TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimited informationmaynotbeavailableforrelease. InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTI toCustomeronanannualbasis. Addendum-Page2

PACKAGE MATERIALS INFORMATION www.ti.com 3-Sep-2009 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) INA133U/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 INA133UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 3-Sep-2009 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) INA133U/2K5 SOIC D 8 2500 346.0 346.0 29.0 INA133UA/2K5 SOIC D 8 2500 346.0 346.0 29.0 PackMaterials-Page2

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