INA2128PA

Overview

The INA2128PA is a dual, low-power instrumentation amplifier manufactured by Texas Instruments under the Burr-Brown brand. It features a plastic package and is designed for precision applications requiring low power consumption. The device integrates two independent instrumentation amplifiers in a single unit, offering high common-mode rejection and stable gain characteristics suitable for sensor signal conditioning.

Feature Summary

• Dual-channel architecture providing two independent instrumentation amplifiers within a single package
• Low power consumption design optimized for battery-operated or energy-efficient systems
• High common-mode rejection ratio ensuring accurate differential signal measurement

Applications

• Precision sensor signal conditioning
• Industrial process control systems
• Medical instrumentation equipment

Procurement Notes

Verify the manufacturer designation as Texas Instruments (Burr-Brown) when sourcing. Confirm the package type corresponds to the PA suffix specification. Ensure compatibility with required operating temperature ranges and supply voltage specifications before integration into final designs.

Selection Notes

Select this component when dual isolated instrumentation channels are required in a compact form factor. Consider its low power profile for portable applications. Verify that the fixed gain configuration meets system accuracy requirements without external resistor trimming needs.

Part Context

This part belongs to the INA2128 family of dual instrumentation amplifiers. It shares functional similarities with other Burr-Brown precision amplifier lines but is distinct in its dual-channel low-power configuration. The PA suffix indicates a specific plastic package variant within the broader INA2128 product line.

Replacement Considerations

Direct substitutes include the INA2128U and INA2128P variants from Texas Instruments, which share identical electrical characteristics but differ in packaging. Cross-brand replacements require careful verification of pinout compatibility and gain accuracy specifications.