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Instrumentation amplifiers - the next level of precision signal conditioning

Integrated resistor networks maximize accuracy and space efficiency

Our portfolio of instrumentation amplifiers helps engineers improve direct-current (DC) accuracy and reduce system power while maintaining low distortion. Our proprietary thin-film technology allows for precise resistor matching and space savings.

Low noise (≤10nV/√Hz)

Achieve lower distortion and higher precision with ultra-low noise

Low offset (≤100µV)

Improve DC accuracy with low offset and high-precision performance

Low power (≤500µA)

Reduce system power without compromising performance

High voltage (≥12V)

Maximize input signal range for precision applications with a wider supply voltage

Featured instrumentation amplifiers

INA821

Wide bandwidth (4.7MHz), low noise (7nV/√Hz), low offset (35μV), low drift (0.4μV/˚C) instrumentation amp built on TI's super-beta technology. Optimized to provide a high CMRR under all conditions

INA818

Low power (350µA), precision instrumentation amplifier build on TI's super-beta technology. It features low input bias current, low noise and integrated over-voltage protection (OVP) up to ±60 V

INA826

Low cost, low power (200µV), small package, precision instrumentation amplifier. The INA826 is well-suited for low voltage operation from a 3-V single supply as well as dual supplies up to ±18V

INA333-Q1

Automotive, zero-drift, micro-power, high CMRR, instrumentation amplifier. Suitable for automotive resistive bridge applications (pressure, strain, torque and force sensors) and HEV/EV current sensing

Featured reference designs

3-terminal programmable logic controller (PLC)

Inputs ±10V or ±20mA and outputs 2.5V±2.3V; measured performance yields less than 0.2% total unadjusted error

Single-supply strain gauge in a bridge configuration

Accurately measures the resistance of a strain gauge in a bridge configuration

Isolated current shunt and voltage measurement motor drive

Enables the performance evaluation of three motor currents, three inverter voltages and the DC-link voltage

Featured technical resources

Calculates the input signal common-mode-range of TI instrumentation amplifiers

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