AD8627AR

Overview

The AD8627AR is a precision, low-power, single-supply JFET input operational amplifier manufactured by Analog Devices Inc. It features a rail-to-rail output stage and operates on supply voltages ranging from 5 V to 26 V (single) or ±2.5 V to ±13 V (dual). The device provides a gain bandwidth product of 5 MHz and a slew rate of 5 V/µs. Key electrical characteristics include a maximum offset voltage of 500 µV at 25°C and a maximum input bias current of 1 pA. It is available in an 8-lead SOIC package.

Feature Summary

• JFET input architecture providing extremely low input bias current
• Rail-to-rail output capability for maximum dynamic range
• True single-supply operation with extended common-mode input range
• Unity gain stable without phase reversal near the positive rail

Applications

• Photodiode transimpedance amplifiers
• Precision active filters
• Buffering CMOS DACs and ASICs
• Portable battery-powered instrumentation

Procurement Notes

Verify that the ordering suffix 'AR' corresponds specifically to the 8-lead SOIC package variant. Confirm the revision level matches the required datasheet specifications. Ensure the component meets industrial temperature range requirements if operating outside standard conditions. Check for specific tape and reel availability if automated assembly is planned.

Selection Notes

Select this component when picoampere-level input currents are critical to minimize errors in high-impedance circuits. The rail-to-rail output makes it suitable for single-supply systems requiring full signal swing. Consider the 5 MHz bandwidth for applications requiring faster settling times compared to older single-supply JFET amplifiers.

Part Context

The AD8627 is part of the AD862x family, which includes the quad-channel AD8625 and dual-channel AD8626. All members share identical electrical performance characteristics but differ in channel count and package options. This specific model represents the single-channel version designed for space-constrained applications using surface-mount technology.

Replacement Considerations

Direct functional substitutes within the same family include the AD8626 (dual channel) and AD8625 (quad channel), provided the additional channels do not interfere with board layout constraints.