INA125 Series

Instrumentation Amplifier with Precision Voltage Reference

Catalog

Instrumentation Amplifier with Precision Voltage Reference

Part	Package / Case	Package / Case [x]	Package / Case [y]	Current - Output / Channel	-3db Bandwidth	Amplifier Type	Voltage - Supply Span (Min) [Min]	Mounting Type	Slew Rate	Voltage - Input Offset	Number of Circuits	Current - Supply	Voltage - Supply Span (Max) [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Current - Input Bias	Package / Case	Package / Case
Texas Instruments INA125U	16-SOIC	0.154 in	3.9 mm	12 mA	150 kHz	Instrumentation	2.7 V	Surface Mount	0.2 V/µs	50 µV	1	460 µA	36 V	16-SOIC	85 °C	-40 °C	10 nA
Texas Instruments INA125PA	16-DIP			12 mA	150 kHz	Instrumentation	2.7 V	Through Hole	0.2 V/µs	50 µV	1	460 µA	36 V	16-PDIP	85 °C	-40 °C	10 nA	0.3 in	7.62 mm
Texas Instruments INA125TDA1	Die					Instrumentation		Surface Mount			1			Die
Texas Instruments INA125UA	16-SOIC	0.154 in	3.9 mm	12 mA	150 kHz	Instrumentation	2.7 V	Surface Mount	0.2 V/µs	50 µV	1	460 µA	36 V	16-SOIC	85 °C	-40 °C	10 nA

Catalog

Instrumentation Amplifier with Precision Voltage Reference

Key Features

• LOW QUIESCENT CURRENT: 460µAPRECISION VOLTAGE REFERENCE: 1.24V, 2.5V, 5V or 10VSLEEP MODELOW OFFSET VOLTAGE: 250µV maxLOW OFFSET DRIFT: 2µV/°C maxLOW INPUT BIAS CURRENT: 20nA maxHIGH CMR: 100dB minLOW NOISE: 38nV/sqrt(Hz) at f = 1kHzINPUT PROTECTION TO ±40VWIDE SUPPLY RANGESingle Supply: 2.7V to 36VDual Supply: ±1.35V to ±18V16-PIN DIP and SO-16 SOIC PACKAGESLOW QUIESCENT CURRENT: 460µAPRECISION VOLTAGE REFERENCE: 1.24V, 2.5V, 5V or 10VSLEEP MODELOW OFFSET VOLTAGE: 250µV maxLOW OFFSET DRIFT: 2µV/°C maxLOW INPUT BIAS CURRENT: 20nA maxHIGH CMR: 100dB minLOW NOISE: 38nV/sqrt(Hz) at f = 1kHzINPUT PROTECTION TO ±40VWIDE SUPPLY RANGESingle Supply: 2.7V to 36VDual Supply: ±1.35V to ±18V16-PIN DIP and SO-16 SOIC PACKAGES

Description

The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit. A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies. The voltage reference is externally adjustable with pin-selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power. The INA125 is available in 16-pin plastic DIP and SO-16 surface-mount packages and is specified for the -40°C to +85°C industrial temperature range. The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit. A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies. The voltage reference is externally adjustable with pin-selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power. The INA125 is available in 16-pin plastic DIP and SO-16 surface-mount packages and is specified for the -40°C to +85°C industrial temperature range.