OPA1655DBVR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA1655DBVR is a single-channel, ultra-low-noise, low-distortion audio operational amplifier from Texas Instruments. It features FET-input architecture with a voltage noise density of 2.9 nV/√Hz at 10 kHz and current noise of 6 fA/√Hz at 1 kHz. The device delivers a gain-bandwidth product of 53 MHz, a slew rate of 24 V/μs, and an open-loop gain of 150 dB. It supports a wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36 V) and operates over a temperature range of –40°C to +125°C. Total harmonic distortion plus noise is specified at –131 dB at 1 kHz.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low noise performance achieved through FET-input architecture
• Rail-to-rail output swing capability for maximum dynamic range
• High open-loop gain and bandwidth for superior signal fidelity
• Internal phase-reversal protection against excessive common-mode voltage

Instrumentation, Op Amps, Buffer Amps Applications

• Professional microphones and wireless systems
• Professional audio mixer and control surfaces
• Guitar amplifiers and other musical instrument amplifiers
• A/V receivers and bookshelf stereo systems
• DJ equipment and turntables

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the DBVR suffix corresponds to the SOT-23-5 package configuration. Confirm RoHS compliance status as indicated in official documentation. Ensure operating conditions remain within the recommended supply voltage and temperature limits to maintain specified electrical characteristics.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring minimal signal degradation in high-fidelity audio paths. The rail-to-rail output and high current drive capability make it suitable for driving various loads without significant signal loss. Consider the thermal resistance metrics for PCB layout planning to ensure stable operation under continuous load.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA1655 is part of the Burr-Brown SoundPlus family, designed specifically for audio and industrial applications where signal fidelity is critical. It shares architectural similarities with the dual-channel OPA1656 but provides a single-channel solution in a compact surface-mount package.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The OPA1656 serves as the dual-channel equivalent within the same series. Verify pinout compatibility when substituting packages, as the DBV package differs from standard SOIC configurations.