AD8682ARMZ

Overview

The AD8682ARMZ is a dual low power, high speed JFET operational amplifier manufactured by Analog Devices Inc. It features a gain bandwidth product of 3.5 MHz and a typical slew rate of 9 V/µs. The device operates within a supply voltage range of ±4.5 V to ±18 V with a maximum supply current of 250 µA per amplifier. Input characteristics include a maximum offset voltage of 1 mV at 25°C and a maximum input bias current of 125 pA over the full temperature range. The component is housed in an 8-lead MSOP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• JFET input stage ensures extremely low input bias current for high source impedance applications
• Optimized for high-speed performance while maintaining low quiescent power consumption
• Unity-gain stable design capable of driving higher capacity loads effectively

Applications

• Portable telecommunications equipment
• Low power industrial and instrumentation systems
• Active and precision filters
• Strain gauge amplifiers
• Supply current monitoring circuits

Procurement Notes

Verify that the specific ordering suffix matches the required package type and reel configuration. Confirm RoHS compliance status as indicated by the 'Z' suffix in the part number. Ensure the procurement channel provides valid traceability documentation for the Analog Devices manufacturing origin. Cross-reference the datasheet revision to confirm electrical specifications align with the production batch requirements.

Selection Notes

Select this component when a balance between high slew rate and low power consumption is critical. The JFET input architecture makes it suitable for applications involving high source impedances where bias current errors must be minimized. Consider the unity-gain stability and output drive capabilities when designing active filter stages or buffer circuits requiring fast settling times without excessive power draw.

Part Context

This device belongs to the AD8682/AD8684 family of low power, high speed JFET operational amplifiers. The AD8682 variant specifically integrates two independent amplifier channels within a single compact package. It shares core architectural similarities with the quad-channel AD8684 but offers a reduced pin count and footprint suitable for dual-channel signal processing designs.

Replacement Considerations

The AD8682ARZ serves as a direct package alternative using the 8-Lead SOIC_N form factor.