AD8397ARDZ

Instrumentation, Op Amps, Buffer Amps Overview

The AD8397ARDZ is a dual voltage feedback operational amplifier in an 8-lead SOIC_N_EP package. It operates from ±1.5 V to ±12 V supplies with rail-to-rail output swing within 0.5 V of the rails. Key electrical parameters include a 69 MHz bandwidth, 53 V/µs slew rate, and 310 mA peak AC output current into 32 Ω loads while maintaining −80 dBc SFDR. Input noise density is 4.5 nV/√Hz at 100 kHz. The device functions across a temperature range of −40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Features a common-emitter, rail-to-rail output stage capable of driving heavy loads with excellent linearity.
• Fabricated on XFCB-HV process to maintain high bandwidth and fast slew rates while minimizing distortion.
• Provides high linear output current up to 310 mA into 32 Ω loads.

Instrumentation, Op Amps, Buffer Amps Applications

• Twisted-pair line drivers
• Audio applications
• General-purpose ac applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix RD-8-2 corresponds to the thermally enhanced 8-lead SOIC package variant. Confirm RoHS compliance status for the Z suffix. Ensure supply voltage ranges align with application requirements before ordering.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring high output drive capability into low impedance loads without discrete buffering. Consider the exposed pad thermal performance for power dissipation management. Verify stability when driving capacitive loads or operating in unity-gain configurations.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the AD8397 family of rail-to-rail, high output current amplifiers. It is available in standard and thermally enhanced packages. The device is designed for applications demanding large signal swings into heavy loads with minimal distortion.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

EVAL-HSAMP-2RZ-8 is listed as a direct substitute.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the AD8397 handle capacitive loads?

In a gain-of-two circuit, it can drive capacitive loads up to 270 pF with only 3 dB of peaking. Adding a 2.2 Ω series resistor extends this capability to 470 pF.

What is the recommended minimum gain for stability?

A gain of two or greater is recommended to avoid overdriving the input and to realize the full swing afforded by the rail-to-rail output stage.