OPA1677DBVT

Instrumentation, Op Amps, Buffer Amps Overview

The OPA1677DBVT is a single-channel, low-distortion audio operational amplifier manufactured by Texas Instruments. It features a rail-to-rail output stage and operates within a wide supply voltage range of 4.5 V to 36 V (or ±2.25 V to ±18 V). The device delivers an input voltage noise density of 4.5 nV/√Hz at 1 kHz and achieves a total harmonic distortion plus noise of 0.0001% (-120 dB) at 1 kHz. Key electrical parameters include a gain-bandwidth product of 16 MHz, a slew rate of 9 V/µs, and a quiescent current of 2 mA per channel. It is housed in a 5-pin SOT-23 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output capability maximizes dynamic range and headroom
• Ultra-low noise and distortion performance for high-fidelity audio
• Internal phase-reversal protection prevents output inversion during overdrive
• Independent internal circuitry ensures minimal crosstalk between channels

Instrumentation, Op Amps, Buffer Amps Applications

• Professional microphones and wireless systems
• Professional audio mixers and control surfaces
• Guitar amplifiers and other musical instrument amplifiers
• A/V receivers
• Automotive external amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'DBVT' corresponds to the SOT-23-5 package configuration. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the operating temperature range aligns with your system's environmental specifications. Validate pinout compatibility with existing PCB footprints before finalizing procurement decisions.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring high signal fidelity with minimal power consumption. The wide supply voltage range accommodates various single-supply and dual-supply architectures. Consider the rail-to-rail output swing if maximizing dynamic range is critical. Verify that the capacitive load drive capabilities meet the requirements of the connected downstream stages.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA1677 belongs to the OPA167x family of low-distortion audio operational amplifiers, which also includes the dual-channel OPA1678 and quad-channel OPA1679. This family is designed to replace legacy op amps commonly used in audio circuitry, offering superior system-level performance. The devices utilize a low-noise input stage with a folded cascode topology to achieve excellent noise and distortion characteristics across a wide range of supply voltages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional replacements within the same family include the OPA1678 (dual-channel) and OPA1679 (quad-channel), provided the application requires multiple channels. For single-channel applications, verify pinout compatibility if substituting with other packages like SOIC-8.