INA154UA

Overview

The INA154UA is a high-speed, precision difference amplifier with a fixed unity gain (G = 1). It integrates a precision operational amplifier with a matched resistor network to provide accurate differential signal amplification. The device operates on a single supply voltage ranging from 4V to 18V and supports a dual supply configuration. It features a slew rate of 20 V/µs and a bandwidth of 3.1 MHz. The input offset voltage is typically 75 µV, ensuring high accuracy in signal processing applications.

Feature Summary

• Integrates a precision op amp with a matched resistor network for high common-mode rejection
• Provides high-speed performance with a 3.1 MHz bandwidth and 20 V/µs slew rate
• Operates on a wide single or dual supply voltage range
• Delivers low input offset voltage for precise differential signal conditioning

Applications

• High-speed data acquisition systems
• Medical instrumentation requiring precise differential amplification
• Industrial process control sensors
• Video signal processing circuits

Procurement Notes

Verify the specific suffix 'UA' corresponds to the 8-pin SOIC package when ordering. Confirm that the application requires a fixed unity-gain difference amplifier, as this component does not offer adjustable gain. Ensure supply voltages remain within the 4V to 18V single-supply limits to maintain specified performance parameters.

Selection Notes

Select the INA154UA when a fixed gain of one is required for high-speed differential signaling. It is suitable for applications needing high common-mode rejection without external resistor matching. Consider alternative parts if variable gain or lower power consumption is prioritized over speed. Verify thermal requirements for the SOIC package in enclosed designs.

Part Context

Texas Instruments manufactures the INA154 series as part of its precision analog signal chain portfolio. This family focuses on integrating passive components with active circuitry to simplify design and improve performance consistency. The INA154UA represents the surface-mount variant, offering compatibility with automated assembly processes while maintaining the electrical characteristics of the through-hole versions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.