INA2331AIPWT

Overview

The INA2331AIPWT is a low-power, single-supply CMOS instrumentation amplifier manufactured by Texas Instruments. It features a 2 MHz bandwidth and a slew rate of 5 V/us. The device operates on a supply voltage ranging from 2.5 V to 5.5 V with a typical quiescent current of 415 uA. Key electrical specifications include a common-mode rejection ratio (CMRR) of 60 dB, an input bias current of 10 pA, and an input offset voltage of 8 mV. It provides a gain error of 0.4% and a power supply rejection ratio (PSRR) of 86.02 dB. The component is housed in a TSSOP-14 package and supports operation temperatures between -55 C and +125 C.

Feature Summary

• Low-power CMOS architecture designed for single-supply applications
• High input impedance with minimal input bias current
• Integrated precision gain structure for signal conditioning

Applications

• Battery-powered sensor interfaces
• Medical instrumentation front-ends
• Industrial process control systems

Procurement Notes

Verify the specific suffix 'WT' against the official Texas Instruments datasheet to confirm tape-and-reel packaging details and moisture sensitivity level. Ensure the ordering part number matches the exact pinout and temperature grade required for your design. Cross-reference the manufacturer's latest documentation to confirm availability status and any recent product changes or lifecycle notices before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring low power consumption alongside moderate bandwidth performance. The wide operating temperature range makes it suitable for harsh environments. Consider the TSSOP-14 package size for space-constrained PCB layouts. Evaluate the 60 dB CMRR requirement against system noise floors to ensure adequate common-mode noise rejection capabilities are met.

Part Context

This device belongs to the INA233x family of instrumentation amplifiers, which are characterized by their low power consumption and single-supply operation. These amplifiers are typically used in applications where precision signal amplification is needed without the complexity of dual-supply requirements. The family offers a balance of performance and power efficiency for portable and industrial sensing applications.

Replacement Considerations

Consult the Texas Instruments replacement guide for direct pin-compatible alternatives within the INA233x series. Verify that substitute components match the TSSOP-14 package and meet the same electrical specifications for bandwidth, offset voltage, and supply current.