AD8626ARZ-REEL

Overview

The AD8626ARZ-REEL is a dual precision JFET input operational amplifier manufactured by Analog Devices Inc. It features true single-supply operation from 5 V to 26 V and dual-supply operation from ±2.5 V to ±13 V. The device provides rail-to-rail output capability with low supply current of 630 μA per amplifier. Key electrical specifications include a maximum offset voltage of 500 μV, an input bias current of 1 pA maximum, and a gain bandwidth product of 5 MHz. It operates within an industrial temperature range of −40°C to +85°C.

Feature Summary

• JFET input stage providing very low input bias current for high impedance applications
• Rail-to-rail output swing enabling maximum dynamic range in single-supply systems
• True single-supply operation allowing input signals below ground potential
• Unity gain stable design without phase reversal near the positive supply rail

Applications

• Photodiode transimpedance amplification
• ATE reference level drivers
• Battery management systems
• Remote sensor signal conditioning including automotive sensors
• Precision active filters such as Sallen-Key topologies

Procurement Notes

Verify the specific REEL suffix against the manufacturer's ordering guide to confirm tape and reel packaging requirements. Ensure the component matches the R-8 SOIC package outline dimensions for PCB footprint compatibility. Confirm RoHS compliance status through official documentation before integration into production assemblies.

Selection Notes

Select this component when picoampere-level input bias currents are required to minimize errors in high-impedance circuits. The rail-to-rail output makes it suitable for buffering CMOS DACs or driving wide-swing devices in single-supply environments. Consider the 5 MHz bandwidth for applications requiring faster settling times compared to older single-supply JFET amplifiers.

Part Context

This part belongs to the AD862x family of precision low-power single-supply JFET amplifiers. The AD8626 specifically denotes the dual-channel configuration available in MSOP and SOIC packages. It shares core architectural features with the AD8625 (quad) and AD8627 (single), differing primarily in channel count and package availability.

Replacement Considerations

Direct functional substitutes within the same family include the AD8625 and AD8627, provided the channel count and package type align with the design requirements. Verify that any replacement maintains the JFET input architecture to preserve the low bias current characteristics essential for the application.