AD820ANZ

Instrumentation, Op Amps, Buffer Amps Overview

The AD820ANZ is a single-channel precision JFET input operational amplifier manufactured by Analog Devices Inc. It operates on a single supply of 5V to 36V or dual supplies of ±2.5V to ±18V. Key electrical parameters include a unity-gain bandwidth of 1.8MHz, a slew rate of 3V/µs, and a maximum input offset voltage of 800µV with a drift of 2µV/°C. The device features low input bias current (typically below 25pA), low noise density (13nV/√Hz at 10kHz), and a maximum supply current of 800µA. It provides rail-to-rail output swing within 10mV of the rails and can drive capacitive loads up to 350pF with a minimum output current of 15mA.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output capability extending within 10mV of each power supply rail for maximum dynamic range.
• True single-supply operation allowing input voltage ranges to extend below the negative supply rail.
• Low power consumption with a maximum static supply current of 800µA.
• High DC precision characterized by low input offset voltage and low input bias current.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered precision instrumentation
• Photodiode preamplifiers
• Active filters
• Medical instruments

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package type and marking against the official datasheet before integration. Confirm that the ordering suffix matches the required lead frame and molding compound specifications. Ensure environmental compliance documentation aligns with project requirements. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high DC accuracy and low noise are required in single-supply systems. The rail-to-rail output and extended input common-mode range simplify circuit design for signals near ground. Consider the 1.8MHz bandwidth and 3V/µs slew rate for moderate-speed signal processing applications requiring low power consumption.

Instrumentation, Op Amps, Buffer Amps Part Context

The AD820ANZ belongs to the AD820 family of precision amplifiers from Analog Devices. This series is designed for applications demanding high input impedance and low distortion. The ANZ suffix indicates an 8-pin PDIP package variant suitable through-hole mounting. It serves as a general-purpose precision amplifier for industrial and medical signal conditioning tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check pinout compatibility and electrical parameter overlaps with other single-channel JFET op-amps from Analog Devices. Verify that substitute devices meet the same rail-to-rail output and single-supply input requirements. Ensure thermal and mechanical constraints of alternative packages are addressed during transition.