Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp, differential amplifier Differential SOIC 8

FEATURES

● DESIGNED FOR LOW COST

● SINGLE, DUAL VERSIONS

● LOW OFFSET VOLTAGE DRIFT:

±450µV max, ±5µV/°C max

● LOW GAIN ERROR: 0.05% max

● WIDE BANDWIDTH: 1.5MHz

● HIGH SLEW RATE: 5V/µs

● FAST SETTLING TIME: 5.5µs to 0.01%

● LOW QUIESCENT CURRENT: 950µA

● WIDE SUPPLY RANGE: ±2.25V to ±18V

● SO-8 and SO-14 PACKAGES

APPLICATIONS

● DIFFERENTIAL INPUT AMPLIFIER

BUILDING BLOCK

● DIFF IN/DIFF OUT AMPLIFIER

● UNITY-GAIN INVERTING AMPLIFIER

● GAIN = +1/2 OR G = +2 AMPLIFIER

● SUMMING AMPLIFIER

● SYNCHRONOUS DEMODULATOR

● CURRENT/DIFFERENTIAL LINE RECEIVER

● VOLTAGE-CONTROLLED CURRENT SOURCE

● BATTERY POWERED SYSTEMS

● LOW COST AUTOMOTIVE

DESCRIPTION

The INA133 and INA2133 are high slew rate, unity-

gain difference amplifiers consisting of a precision op

amp with a precision resistor network. The on-chip

resistors are laser trimmed for accurate gain and high

common-mode rejection. Excellent TCR tracking of the

resistors maintains gain accuracy and common-mode

rejection over temperature. They operate over a wide

supply range, ±2.25V to ±18V (+4.5V to +36V single

supply), and input common-mode voltage range extends

beyond the positive and negative supply rails.

INA133

INA2133

High-Speed, Precision

DIFFERENCE AMPLIFIERS

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

The differential amplifier is the foundation of many

commonly used circuits. The low cost INA133 and

INA2133 provide this precision circuit function without

using an expensive precision network.

The single version, INA133, package is the SO-8 surface

mount. The dual version, INA2133, package is the SO-14

surface mount. Both are specified for operation over the

extended industrial temperature range, –40°C to +85°C.

Operation is from –55°C to +125°C.

25kΩ 25kΩ

Sense

INA133

Output

V+

Ref

–In

+In

V–

25kΩ 25kΩ

Sense A

INA2133

Out A

V+

Ref A

–In A

+In A

V–

25kΩ 25kΩ

Sense B

Out B

Ref B

–In B

+In B

A2133

For most current data sheet and other product

information, visit www.burr-brown.com

SBOS115

Summary of content (20 pages)

PAGE 1
® INA INA133 INA2133 213 3 INA 133 For most current data sheet and other product information, visit www.burr-brown.com High-Speed, Precision DIFFERENCE AMPLIFIERS FEATURES APPLICATIONS ● DESIGNED FOR LOW COST ● SINGLE, DUAL VERSIONS ● DIFFERENTIAL INPUT AMPLIFIER BUILDING BLOCK ● DIFF IN / DIFF OUT AMPLIFIER ● LOW OFFSET VOLTAGE DRIFT: ±450µV max, ±5µV/°C max ● LOW GAIN ERROR: 0.05% max ● UNITY-GAIN INVERTING AMPLIFIER ● GAIN = +1/2 OR G = +2 AMPLIFIER ● WIDE BANDWIDTH: 1.
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SPECIFICATIONS: VS = ±15V At TA = +25°C, VS = ±15V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. INA133U INA2133U PARAMETER CONDITIONS OFFSET VOLTAGE(1) Initial(1) vs Temperature vs Power Supply vs Time Channel Separation (dual) MIN TYP MAX ±450 ±5 ±30 dc ±150 ±2 ±10 0.3 120 VCM = 0V 50 25 RTO VCM = 0V TA = –40°C to +85°C VS = ±2.
PAGE 3
SPECIFICATIONS: VS = ±5V At TA = +25°C, VS = ±5V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
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PIN CONFIGURATIONS Top View SO-8 Top View SO-14 INA2133 INA133 1 Ref 8 NC NC 1 –In A 2 14 Ref A 13 Out A A +In A 3 12 Sense A Output V– 4 11 V+ Sense +In B 5 10 Sense B –In 2 7 V+ +In 3 6 V– 4 5 B –In B 6 9 Out B NC 7 8 Ref B NC = No Connection NC = No Connection ® INA133, INA2133 4
PAGE 5
TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = ±15V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
PAGE 6
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. 0.
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TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION VS = ±5V OFFSET VOLTAGE PRODUCTION DISTRIBUTION VS = ±15V OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION VS = ±15V OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION VS = ±5V 60 Typical production distribution of packaged units. Singles and duals included.
PAGE 8
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. LARGE-SIGNAL STEP RESPONSE SMALL-SIGNAL STEP RESPONSE CL = 100pF 2V/div 100mV/div CL = 1000pF CL = 1000pF 2.5µs/div 2.
PAGE 9
APPLICATIONS INFORMATION changed, pins 2 and 5 must also be interchanged to maintain proper ratio matching. The INA133 and INA2133 are high-speed difference amplifiers suitable for a wide range of general purpose applications. Figure 1 shows the basic connections required for operation of the INA133. Decoupling capacitors are strongly recommended in applications with noisy or high impedance power supplies. The capacitors should be placed close to the device pins as shown in Figure 1.
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TYPICAL APPLICATIONS V1 INA133 –In V+ A1 V+ 3 2 INA133 5 2 R2 5 6 R1 VO R2 7 6 1 3 VO = (V+)/2 A2 V2 +In VO = (1 + 2R2/R1) (V2 –V1) Common 4 1 Common The INA133 can be combined with op amps to form a complete instrumentation 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.
PAGE 11
INA133 INA133 2 5 2 5 6 VO = 2 • V1 1 6 V3 V1 VO = 3 V3 2 ±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 2 5 6 VO = 1 V1 6 (V1 + V3) 2 ±0.05% max V3 3 VO = V1 + V3 1 V1 ±0.05% max V3 5 3 FIGURE 9. Precision Average Value Amplifier. FIGURE 10. Precision Summing Amplifier.
PAGE 12
1 Noise (60Hz hum) INA115 4 A1 2 Transducer or Analog Signal 25kΩ Feedback 12 3 25kΩ 25kΩ A3 RG 11 14 25kΩ G=1+ 25kΩ 15 A2 25kΩ 5 Noise (60Hz hum) 100kΩ Shield 13 V+ 7 8 10 Ref V– 3 INA133 2 5 6 1 FIGURE 13. Instrumentation Amplifier Guard Drive Generator. 1/2 INA2133 2 12 1/2 INA2133 3 V1 V2 A 6 13 14 V3 V4 10 B 5 8 FIGURE 14. Precision Summing Instrumentation Amplifier.
PAGE 13
INA133 1/2 INA2133 5 2 V2 R 12 2 6 R V1 13 A V1 1 3 V01 14 3 IO = (V1 – V2) (1/25k + 1/R) Load IO V2 1/2 INA2133 FIGURE 15. Precision Voltage-to-Current Converter with Differential Inputs. 6 10 INA133 V2 9 B 5 2 V02 8 5 6 R V3 3 V01 – V02 = 2 (V2 – V1) OPA131 1 FIGURE 18. Differential Output Difference Amplifier. IO Load IO = (V3 – V2)/R FIGURE 16. Differential Input Voltage-to-Current Converter for Low IOUT.
PAGE 14
+5V 7 VS INA133 2 5 Transducer or Analog Signal 6 0V-4V Input 1 3 12 Bits Out ADS7806 4 –5V Eliminates errors due to different grounds. FIGURE 20. Differential Input Data Acquisition. INA133 2 5 V1 DG188 6 VO 3 1 Logic In Logic In VO 0 –V1 1 +V1 1 FIGURE 21. Digitally Controlled Gain of ±1 Amplifier. INA133 2 D1 D2 OPA130 R3 R4 1 R5 2kΩ FIGURE 22. Precision Absolute Value Buffer.
PAGE 15
+15V 2 +10V Out 6 REF102 –In INA133 2 5 BUF634 inside feedback loop contributes no error. INA133 2 5 –10V Out 6 BUF634 4 VO 6 1 +In RL 1 3 3 FIGURE 23. ±10V Precision Voltage Reference. FIGURE 24. High Output Current Precision Difference Amplifier. V+ 0V to 10V In 12.5kΩ 1kΩ 7 50kΩ INA133 2 OPA227 +15V V2 2 5 25kΩ 25kΩ 6 REF102 6 10V For 4-20mA applications, the REF102 sets the 4mA low-scale output for 0V input. R1 50.1Ω 2N3904 Set R1 = R2 V3 3 25kΩ 25kΩ 1 R2 50.
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.
PAGE 17
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.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 3-Sep-2009 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 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.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 3-Sep-2009 *All dimensions are nominal Device Package Type Package Drawing 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.
PAGE 20
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