AD797AR-REEL7

Instrumentation, Op Amps, Buffer Amps Overview

The AD797AR-REEL7 is a single-channel, ultralow noise and distortion operational amplifier manufactured by Analog Devices Inc. It features a gain-bandwidth product of 110 MHz and a slew rate of 20 V/µs. The device operates on dual power supplies ranging from ±5 V to ±15 V with a supply current of 8.2 mA. Key electrical specifications include an input offset voltage of 25 µV, input bias current of 250 nA, and a common-mode rejection ratio of 114 dB. It is housed in an 8-SOIC surface-mount package and functions within a temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultralow noise performance with 0.9 nV/√Hz typical input voltage noise density
• High-speed operation characterized by 110 MHz gain-bandwidth product and 20 V/µs slew rate
• Low total harmonic distortion of -120 dB at 20 kHz for high-fidelity signal integrity
• Robust output drive capability delivering up to 50 mA of output current

Instrumentation, Op Amps, Buffer Amps Applications

• Professional audio preamplifiers requiring wide dynamic range
• Buffer stages for Sigma-Delta analog-to-digital converters (ADCs)
• Buffer stages for Sigma-Delta digital-to-analog converters (DACs)
• Spectrum analyzers demanding low distortion and high precision
• Seismic monitoring systems and sonar imaging equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm packaging type and reel specifications. Ensure the component matches the required SOIC-8 footprint and pinout configuration for your design. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits that require exceptional signal fidelity in low-frequency applications such as audio or precision instrumentation. It is suitable for driving low-impedance loads due to its high output current capability. Consider thermal management and PCB layout techniques, such as ground plane modifications, to optimize stability and minimize parasitic effects during implementation.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the AD797 series of ultralow noise operational amplifiers from Analog Devices. It utilizes Folded-Cascode architecture and discrete transistor design to achieve superior noise and distortion metrics compared to standard monolithic op amps. The series is widely recognized for its ability to maintain high performance across a broad dynamic range in critical analog signal processing tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.