AD8627ARZ-REEL

Overview

The AD8627ARZ-REEL is a precision single-supply JFET input amplifier manufactured by Analog Devices Inc. It features rail-to-rail output capability and operates on supply voltages ranging from 5 V to 26 V (single) or ±2.5 V to ±13 V (dual). Key electrical specifications include a maximum offset voltage of 500 μV, a maximum input bias current of 1 pA, and a gain bandwidth product of 5 MHz. The device draws a typical supply current of 630 μA per amplifier and maintains stability with capacitive loads exceeding 500 pF.

Feature Summary

• Features true single-supply operation with rail-to-rail output swing for maximum dynamic range.
• Utilizes n-channel JFETs to provide extremely low input bias current and high input impedance.
• Maintains unity-gain stability without phase reversal when input signals approach the positive rail.
• Designed for stable performance with capacitive loads greater than 500 pF.

Applications

• Photodiode transimpedance amplification
• ATE reference level drivers
• Battery management systems
• Remote sensor signal conditioning including automotive sensors

Procurement Notes

Verify that the ordering suffix ARZ corresponds to the 8-lead SOIC package configuration as specified in the manufacturer's documentation. Confirm that the REEL designation indicates tape and reel packaging availability. Ensure the component meets industrial temperature range requirements (-40°C to +85°C) for the intended application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring low power consumption combined with high DC precision. The JFET input stage makes it suitable for high-impedance source circuits where minimal loading is critical. Consider the 5 MHz bandwidth and 5 V/μs slew rate for signal processing tasks requiring moderate speed. Verify that the single-supply voltage range aligns with the system power architecture.

Part Context

The AD8627 is part of the AD862x family of precision amplifiers, which includes the dual-channel AD8626 and quad-channel AD8625 variants. This family shares common architectural features such as JFET inputs and rail-to-rail outputs but differs in channel count and package options. The AD8627 specifically provides a single-channel solution optimized for space-constrained designs using surface-mount packages.

Replacement Considerations

Direct functional substitutes within the same family include the AD8626 (dual channel) and AD8625 (quad channel), provided pin compatibility and channel requirements are addressed. Cross-family replacements require verification of matching electrical parameters such as input bias current, offset voltage, and supply voltage ranges.