AD8607ARMZ-R2

Overview

The AD8607ARMZ-R2 is a dual-channel precision micro-power operational amplifier from Analog Devices. It features rail-to-rail input and output capabilities, low offset voltage of 50 µV maximum, and low input bias current of 1 pA maximum. Operating on a single supply from 1.8 V to 5 V or dual supplies from ±0.9 V to ±2.5 V, it consumes 40 µA per amplifier. The device offers a gain bandwidth product of 400 kHz and unity gain stability. It is housed in an 8-lead MSOP package with a -40°C to +125°C operating temperature range.

Feature Summary

• Patented trimming technique achieves superior precision without laser adjustment
• Rail-to-rail input and output swing enables buffering CMOS ADCs and DACs
• No phase reversal even when input exceeds common-mode voltage limits
• Low power consumption suitable for portable and battery-powered applications

Applications

• Battery-powered instrumentation
• Multipole filters
• Capacitive and inductive sensors
• Low power ASIC input or output amplifiers
• Photodiode transimpedance amplifiers

Procurement Notes

Verify the specific ordering suffix R2 indicates reel packaging quantity of 250 units as per the official Analog Devices ordering guide. Confirm RoHS compliance status associated with the Z suffix. Ensure the 8-lead MSOP package option matches the design footprint requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring high DC precision with minimal power budget. The dual-channel configuration reduces board space compared to single-channel alternatives. Verify that the 400 kHz gain bandwidth product meets the signal frequency requirements. Consider the 1 pA input bias current for high-impedance sensor interfaces.

Part Context

This part belongs to the AD8603/AD8607/AD8609 family of precision micropower CMOS operational amplifiers. The AD8607 specifically provides two channels in an 8-lead package, bridging the gap between the single-channel AD8603 and quad-channel AD8609. All members share identical electrical characteristics and trimming technology.

Replacement Considerations

Official substitutes within the same family include the AD8603AUJZ-R2 for single-channel applications and the AD8609ARUZ for quad-channel needs. These parts share identical electrical specifications but differ in channel count and package type. Direct pin-compatible replacements are not available outside this specific series.

FAQ

Does the AD8607 exhibit phase reversal if the input voltage exceeds the common-mode range?

No, the AD8607 does not exhibit phase reversal even when the input voltage exceeds the maximum input common-mode voltage by up to 1 V.

What is the maximum input bias current specification for this device?

The maximum input bias current is 1 pA at 25°C, increasing to 50 pA over the extended temperature range of -40°C to +85°C.