INA2143U/2K5

Overview

The INA2143U/2K5 is a dual-channel differential amplifier from Texas Instruments, designed for optical network applications. It operates on a single supply voltage ranging from 2.7 V to 5.5 V, with a typical operating current of 950 µA. The device features a gain bandwidth product of 5.5 MHz and a slew rate of 6 V/µs. It offers a common-mode rejection ratio (CMRR) of 92 dB and an input bias current of 10 pA. Packaged in a 14-pin SOIC format, it supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture optimized for differential signal processing in optical networks
• Single-supply operation compatible with low-voltage systems
• High common-mode rejection capability for noise immunity

Applications

• Optical network interface circuits
• Differential signal conditioning
• Low-power instrumentation systems

Procurement Notes

Verify the specific suffix /2K5 indicates tape and reel packaging when ordering. Confirm the manufacturer is Texas Instruments to ensure authenticity. Check RoHS compliance status via official documentation before integration. Ensure the 14-pin SOIC package matches your PCB footprint requirements. Validate electrical specifications against the latest datasheet revision.

Selection Notes

Select this component when dual-channel differential amplification is required in space-constrained designs. It is suitable for applications needing single-supply operation with moderate bandwidth. Consider the 10 pA input bias current for high-impedance sources. Evaluate the 92 dB CMRR for environments with significant common-mode noise. Compare power consumption against other dual op-amps if battery life is critical.

Part Context

This part belongs to the special purpose amplifier family from Texas Instruments. It complements other differential amplifiers like the INA132 and precision instrumentation amps like the INA2321. The U/2K5 designation specifies the 14-SOIC package and reel packaging format. It serves as a dedicated solution for optical transceiver front-ends.

Replacement Considerations

Direct substitutes include the INA2143UA/2K5 for pin-compatible upgrades. Verify functional equivalence with generic dual op-amps only if differential configuration is externally implemented. Cross-reference with INA132U/2K5 for similar differential functionality but different gain characteristics.