AD8599TRZ-EP

Overview

The AD8599TRZ-EP is a dual, ultralow noise, and low distortion operational amplifier designed for high-performance applications. It features a voltage noise density of 1.15 nV/√Hz at 1 kHz and total harmonic distortion plus noise of −120 dB at 1 kHz. The device offers a gain bandwidth product of 10 MHz and a slew rate of 15 V/μs to 16 V/μs depending on configuration. It operates with supply currents of 5.0 mA per amplifier and supports dual supplies up to ±18 V. The input offset voltage is typically 10 μV, with a common-mode rejection ratio of 120 dB minimum. It is housed in an 8-lead SOIC package and functions within a temperature range of −55°C to +125°C.

Feature Summary

• Ultralow noise density of 1.15 nV/√Hz and peak-to-peak noise of 76 nV p-p from 0.1 Hz to 10 Hz.
• Low distortion performance with −120 dB total harmonic distortion plus noise at audio frequencies.
• Enhanced product reliability supporting defense and aerospace requirements through controlled manufacturing baselines.
• Wide operating temperature range extending from −55°C to +125°C.

Applications

• Professional audio preamplifiers
• ATE and precision testers
• Imaging systems
• Medical and physiological measurements
• Precision detectors and instruments

Procurement Notes

Verify the specific suffix (e.g., TRZ-EP-R7) against the ordering guide to confirm packaging type. Confirm that the enhanced product designation meets the required AQEC standard for defense or aerospace qualification. Ensure the extended temperature range specification aligns with the environmental conditions of the target application before finalizing procurement.

Selection Notes

Select this component when ultralow noise and distortion are critical for signal integrity in audio or medical instrumentation. The dual-channel architecture allows for compact designs requiring two precision amplifiers. Consider the 10 MHz bandwidth and fast settling time for buffering high-resolution data converters. Verify that the ±18 V maximum supply rating accommodates the system's power rails.

Part Context

The AD8599TRZ-EP belongs to the AD8599-EP Enhanced Product family from Analog Devices. This series is engineered specifically for demanding environments requiring strict quality control. The EP designation indicates adherence to the AQEC standard, ensuring consistent performance across controlled fabrication and assembly sites.

Replacement Considerations

The AD8599ARZ is a commercial grade alternative but lacks the enhanced product controls and extended temperature range specified for the EP version. Substitution requires verifying if the application demands the specific reliability standards associated with the enhanced product line.

FAQ

What is the maximum differential input voltage allowed?

The absolute maximum differential input voltage is ±1 V. If this limit is exceeded, the input current must be limited to 5 mA to prevent damage.

How does the CMRR vary with temperature?

The common-mode rejection ratio is specified as a minimum of 120 dB at 25°C. Over the full operating temperature range of −55°C to +125°C, the minimum CMRR is 115 dB.