INA338AIDGSR

Instrumentation, Op Amps, Buffer Amps Overview

The INA338AIDGSR is a precision instrumentation amplifier in an MSOP-10 package, featuring a shutdown function. It operates on a single supply from 2.7V to 5.5V with a quiescent current of 2.4mA. Key electrical parameters include a maximum input offset voltage of 100µV and a common-mode rejection ratio of 106dB. The device provides a bandwidth of 1kHz and supports gains up to 10,000 V/V via external resistors. It functions within a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated shutdown capability reduces supply current significantly when disabled.
• True single-supply operation with input common-mode range extending beyond the positive rail.
• High precision performance characterized by low DC errors and excellent long-term stability.
• Internal auto-correction circuitry eliminates low-frequency noise for high accuracy.

Instrumentation, Op Amps, Buffer Amps Applications

• Low-level transducer amplification for bridges, load cells, and thermocouples
• Wide dynamic range sensor measurements
• High-resolution test systems and weigh scales
• Multi-channel data acquisition systems
• Medical instrumentation and automotive applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'SR' indicates the tape and reel packaging format containing 2500 units. Confirm the 'AID' designation corresponds to the industrial temperature grade of -40°C to +125°C. Ensure the component matches the MSOP-10 physical footprint and pinout configuration required for the target PCB layout.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a shutdown feature is required to minimize power consumption in battery-operated devices. It is suitable for applications demanding high common-mode rejection and wide input voltage ranges that exceed standard rails. Consider the 1kHz bandwidth limitation when designing for higher frequency signal processing requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA337/INA338 family of wide-temperature precision instrumentation amplifiers. While the INA337 lacks the shutdown functionality, the INA338 adds an enable pin to control power states. Both share identical core electrical characteristics and are designed for general-purpose high-accuracy signal conditioning tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The INA337AIDGSR serves as a functional substitute if the shutdown pin is not utilized in the design. Verify that the replacement maintains compatibility with the existing gain-setting resistor network and output filtering requirements.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the shutdown feature affect the output state?

When the Enable pin is driven low, the amplifier enters a disabled state where the output assumes a high-impedance condition and supply current drops to approximately 2µA.

What is the recommended method for setting the gain?

Gain is set using two external resistors, R1 and R2, according to the equation G = 2(R2/R1). Optimal performance requires selecting R1 values no less than 2kΩ.