INA103KPG4

Overview

The INA103KPG4 is a low-noise, low-distortion instrumentation amplifier manufactured by Texas Instruments. It features a fixed gain of 100 V/V and utilizes a monolithic design with laser-trimmed precision resistors to ensure high accuracy. The device operates on dual supplies ranging from ±5V to ±15V or single supplies up to 30V. It offers a wide bandwidth of 1 MHz and a slew rate of 15 V/µs, supporting signal processing in demanding environments.

Feature Summary

• Monolithic construction with integrated laser-trimmed resistors for stable fixed gain
• Low noise and low distortion characteristics suitable for precision signal conditioning
• Wide supply voltage range supporting both dual and single power configurations

Applications

• Precision data acquisition systems
• Medical instrumentation
• Industrial process control

Procurement Notes

Verify the specific suffix KPG4 against the manufacturer's current datasheet to confirm package type and temperature grade. Confirm availability status as legacy components may have limited stock or end-of-life restrictions. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement.

Selection Notes

Select this component when a fixed gain of 100 is required without external resistor networks. Consider its low noise profile for sensitive analog front ends. Verify that the input common-mode voltage range aligns with the system's signal levels. Evaluate the DIP-14 package constraints against available board space and assembly methods.

Part Context

This part belongs to the INA103 family of instrumentation amplifiers designed for high-performance applications. It serves as a direct replacement for older Burr-Brown models, maintaining pin compatibility while offering improved specifications. The series is known for reliability in industrial and medical sectors requiring precise differential amplification.

Replacement Considerations

• INA103KU
• INA103KP

FAQ

What is the fixed gain of the INA103KPG4?

The INA103KPG4 has a fixed gain of 100 V/V, established by internal laser-trimmed resistors.

Does the INA103KPG4 require external gain-setting resistors?

No, the gain is internally set to 100 V/V, eliminating the need for external precision resistors.