OPA2134PA

Overview

The OPA2134PA is a dual-channel, ultra-low distortion, low-noise operational amplifier from the SoundPlus series, designed for high-fidelity audio applications. It features a true FET input stage providing superior sound quality and speed. Key electrical parameters include an 8 MHz gain-bandwidth product, a 20 V/µs slew rate, and an input voltage noise density of 8 nV/√Hz. The device operates on supply voltages ranging from ±2.5 V to ±18 V (5 V to 36 V total). It offers a typical total harmonic distortion plus noise of 0.00015% and maintains excellent DC performance with low input bias current.

Feature Summary

• Ultra-low distortion and low noise characteristics optimized for high-fidelity audio signal processing
• True FET input stage ensuring superior sound quality, high speed, and minimal input bias current
• Wide output swing capability extending within 1 V of the power rails for increased headroom
• Unity-gain stability with robust dynamic behavior under various load conditions including high capacitance

Applications

• Professional audio equipment such as mixers and power amplifiers
• Line drivers and line receivers for signal transmission
• Multimedia audio systems including computer sound cards and television audio circuits
• Active filters and preamplifiers requiring precise signal conditioning

Procurement Notes

Verify the specific package type matches the design requirements, as the OPA2134 series includes both surface-mount and through-hole variants. Confirm that the selected component aligns with the intended single or dual supply voltage range. Ensure compliance with relevant environmental standards if applicable to the final assembly process.

Selection Notes

Select this component when designing circuits that demand exceptional audio fidelity and low noise floors. The wide supply voltage range allows flexibility in power system design. Consider the through-hole packaging specifically for prototyping or applications where mechanical mounting constraints favor DIP configurations over surface-mount alternatives.

Part Context

This part belongs to the Texas Instruments SoundPlus family of high-performance audio operational amplifiers. The OPA2134 series encompasses dual-channel versions available in multiple packages, including the PDIP-8 configuration found in this specific model. It shares core architectural features with other members like the OPA2134UA but differs primarily in physical mounting style.

Replacement Considerations

LT1113ACN8#PBF is identified as a similar alternative component.