ADTL084ARZ-REEL7

Overview

The ADTL084ARZ-REEL7 is a quad JFET input operational amplifier from Analog Devices, designed as a low-cost alternative to the TL084. It features an offset voltage of up to 9 mV and operates with supply voltages up to ±15 V. Key electrical characteristics include a gain-bandwidth product of 5 MHz, a slew rate of 20 V/μs, and a typical supply current of 1.2 mA per amplifier. The device is specified for commercial temperature ranges and offers improved noise performance and common-mode rejection compared to legacy counterparts.

Feature Summary

• JFET input architecture providing low input bias current
• Compatible pinout and function with industry-standard TL08x devices
• Unity-gain stable design suitable for direct feedback applications
• Low voltage noise density for high-fidelity signal processing

Applications

• General-purpose amplification in analog circuits
• Active filter implementations requiring low distortion
• Data acquisition systems needing high input impedance
• Industrial process control instrumentation
• Sample and hold circuit buffering stages

Procurement Notes

Verify the specific ordering suffix to confirm package type and reel configuration. Ensure the selected variant matches the required operating temperature range for your application environment. Cross-reference the datasheet revision to confirm all electrical specifications align with your design constraints before finalizing procurement decisions.

Selection Notes

Select this component when a drop-in replacement for TL084 is needed with improved noise and offset characteristics. Consider the ADTL084A grade if extended industrial temperature operation is required. Evaluate the power supply requirements against the ±15 V maximum rating and ensure thermal management suits the chosen package option for the expected load conditions.

Part Context

This part belongs to the ADTL08x family of low-cost JFET input operational amplifiers. It serves as an enhanced successor to the legacy TL08x series, offering better performance metrics such as lower offset voltage drift and higher common-mode rejection ratio. The family includes dual (ADTL082) and quad (ADTL084) variants available in various package options.

Replacement Considerations

Official substitutes within the same family include the ADTL084A variants for extended temperature ranges or different package styles like TSSOP. Direct replacements for standard grade commercial operation are limited to other ADTL084JR configurations. Verify compatibility with existing PCB footprints when switching between SOIC and MSOP packages.

FAQ

What is the maximum supply voltage for the ADTL084?

The absolute maximum supply voltage is ±18 V or +36 V total. However, typical operation is specified at ±15 V.

Is the ADTL084 unity-gain stable?

Yes, the ADTL084 is unity-gain stable, allowing it to be used in voltage follower configurations without risk of oscillation.

What is the input bias current specification?

The input bias current is typically 2 pA at 25°C and has a maximum of 100 pA over the commercial temperature range.