Datasheet

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

FEATURES

● DESIGNED FOR LOW COST

● G = 10V/V or G = 0.1V/V

● SINGLE, DUAL VERSIONS

● LOW OFFSET VOLTAGE:

±250µV max, ±3µV/°C max

● LOW GAIN ERROR: 0.01%

● HIGH SLEW RATE: 5V/µs

● FAST SETTLING TIME: 9µs 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

● GAIN = –10 INVERTING AMPLIFIER

● GAIN = +10 NON-INVERTING AMPLIFIER

● GAIN = +11 NON-INVERTING AMPLIFIER

● SYNCHRONOUS DEMODULATOR

● CURRENT/DIFFERENTIAL LINE RECEIVER

● VOLTAGE-CONTROLLED CURRENT SOURCE

● BATTERY POWERED SYSTEMS

● LOW COST AUTOMOTIVE

DESCRIPTION

The INA143 and INA2143 are high slew rate, gain of

10V/V or 0.1V/V 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 resistor 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.

INA143

INA2143

High-Speed, Precision, G = 10 or G = 0.1

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 INA143 and

INA2143 provide this precision circuit function without

using an expensive precision network.

The single version, INA143, package is the SO-8 surface

mount. The dual version, INA2143, 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.

10kΩ 100kΩ

Sense

INA143

Output

V+

Ref

–In

+In

V–

10kΩ 100kΩ

Sense A

INA2143

Out A

V+

Ref A

–In A

+In A

V–

10kΩ 100kΩ

Sense B

Out B

Ref B

–In B

+In B

INA143

2143

For most current data sheet and other product

information, visit www.burr-brown.com

SBOS116

Summary of content (15 pages)

PAGE 1
® INA INA143 INA2143 214 3 INA 143 For most current data sheet and other product information, visit www.burr-brown.com High-Speed, Precision, G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS FEATURES APPLICATIONS ● DESIGNED FOR LOW COST ● G = 10V/V or G = 0.1V/V ● DIFFERENTIAL INPUT AMPLIFIER BUILDING BLOCK ● DIFF IN/DIFF OUT AMPLIFIER ● SINGLE, DUAL VERSIONS ● LOW OFFSET VOLTAGE: ±250µV max, ±3µV/°C max ● GAIN = –10 INVERTING AMPLIFIER ● GAIN = +10 NON-INVERTING AMPLIFIER ● LOW GAIN ERROR: 0.
PAGE 2
SPECIFICATIONS: VS = ±15V At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. INA143U INA2143U PARAMETER CONDITIONS OFFSET VOLTAGE(1) Initial(1) vs Temperature vs Power Supply vs Time Channel Separation (dual) MIN RTI VCM = 0V VS = ±2.25V to ±18V dc INPUT IMPEDANCE(3) Differential Common-Mode TYP MAX ±100 ±1 ±5 0.
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SPECIFICATIONS: VS = ±5V At TA = +25°C, VS = ±5V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. INA143U INA2143U PARAMETER CONDITIONS OFFSET VOLTAGE(1) Initial(1) vs Temperature MIN RTI VCM = 0V INPUT VOLTAGE RANGE Common-Mode Voltage Range Positive Negative Common-Mode Rejection Ratio INA143UA INA2143UA TYP MAX ±200 ±1 ±500 MIN TYP MAX UNITS ✻ ✻ ±750 µV µV/°C RTI ✻ ✻ 80 VO = 0V 1.1[(V+)– 1.5] 1.1[(V+) –1] 1.1[(V–) +1.5] 1.
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PIN CONFIGURATIONS Top View SO-8 Top View SO-14 INA2143 INA143 Ref 1 8 NC –In 2 7 V+ +In 3 6 Output V– 4 5 Sense NC 1 –In A 2 14 Ref A 13 Out A A +In A 3 12 Sense A V– 4 11 V+ +In B 5 10 Sense B B –In B 6 9 Out B NC 7 8 Ref B NC = No Connection NC = No Connection ® INA143, INA2143 4
PAGE 5
TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
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TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. 0.1Hz TO 10Hz PEAK-TO-PEAK VOLTAGE NOISE VOLTAGE NOISE DENSITY vs FREQUENCY 0.
PAGE 7
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION VS = ±15V 30 20 Typical production distribution of packaged units. Singles and duals included. 20 Typical production distribution of packaged units. Singles and duals included.
PAGE 8
TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = ±15V, G = 10, RL = 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted. LARGE-SIGNAL STEP RESPONSE SMALL-SIGNAL STEP RESPONSE CL = 100pF 5V/div 100mV/div CL = 500pF CL = 1500pF 25µs/div 2.
PAGE 9
APPLICATIONS INFORMATION throughout the full operating voltage range. Parameters which vary significantly with operating voltage are shown in the Typical Performance Curves. The INA143 and INA2143 are high-speed difference amplifiers suitable for a wide range of general-purpose applications. Figure 1 shows the basic G = 10 configuration. The input and feedback resistors can be reversed to achieve G = 0.1, as shown in Figure 2. For applications requiring G = 1, the INA133 and INA2133 are recommended.
PAGE 10
INA143 V1 –In 10Ω V1 10kΩ 2 100kΩ 5 200Ω A1 Gain Adjust INA143 2 R2 10kΩ 100kΩ 5 VO 6 6 R1 VO R2 10Ω V2 10kΩ 3 100kΩ 1 200Ω 3 CMR Adjust A2 To eliminate adjustment interactions, first adjust gain with V2 grounded. 10kΩ 100kΩ 1 V0 = 10 (1 + 2R2 /R1) (V2 – V1) V2 +In FIGURE 4. Difference Amplifier with Gain and CMR Adjust. The INA143 can be combined with op amps to form a complete instrumentation amplifier with specialized performance characteristics.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.com 6-Jul-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 13
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 INA143U/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 INA143UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
PAGE 14
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) INA143U/2K5 SOIC D 8 2500 346.0 346.0 29.0 INA143UA/2K5 SOIC D 8 2500 346.0 346.0 29.
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