AD8626ARM-R2

Overview

The AD8626ARM-R2 is a dual precision JFET input operational amplifier from the AD862x family, housed in an 8-lead MSOP package. It features true single-supply operation with a voltage range of 5 V to 26 V and dual-supply capability from ±2.5 V to ±13 V. The device offers a gain bandwidth product of 5 MHz and a slew rate of 5 V/µs. Key electrical characteristics include a maximum input bias current of 1 pA, a maximum offset voltage of 0.75 mV at ±13 V, and a typical supply current of 710 µA per amplifier. It provides rail-to-rail output swing and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• JFET input stage providing ultra-low input bias current for high impedance signal sources
• Rail-to-rail output capability maximizing dynamic range in single-supply systems
• True single-supply operation allowing inputs to extend below the negative rail
• Unity gain stable design ensuring stability with capacitive loads exceeding 500 pF

Applications

• Photodiode transimpedance amplification
• Precision active filters
• Battery-powered instrumentation
• Automotive sensor signal conditioning

Procurement Notes

Verify that the RM suffix corresponds to the 8-lead MSOP package configuration required for your PCB layout. Confirm the R2 suffix indicates tape and reel packaging suitable for automated assembly processes. Ensure the component meets RoHS compliance standards applicable to your manufacturing region before finalizing procurement orders.

Selection Notes

Select this component when low input bias current and DC precision are critical requirements. The 5 MHz bandwidth supports applications requiring faster settling times than older single-supply JFET amplifiers. Verify that the operating voltage range aligns with your system's power supply constraints and that the MSOP package dimensions fit your available board space.

Part Context

This part belongs to the AD862x series of precision low-power single-supply JFET amplifiers manufactured by Analog Devices. The series includes the AD8625 (quad), AD8626 (dual), and AD8627 (single) variants. These devices share identical electrical specifications but differ in channel count and package options, offering flexibility for various circuit densities and form factors.

Replacement Considerations

Direct functional substitutes within the same family include the AD8625 and AD8627, provided the channel count matches the application requirements. Cross-family replacements require verification of pin compatibility and electrical parameter alignment, particularly regarding input bias current and supply voltage ranges.

FAQ

Does the AD8626 experience phase reversal when input signals approach the positive rail?

No, the AD8626 does not experience phase reversal with input signals close to the positive rail.

What is the input common-mode voltage range relative to the supply rails?

The input common-mode voltage extends from 0.2 V below the negative rail (-VS) to 2 V below the positive rail (+VS).