AD8610ARMZ-R7

Overview

The AD8610ARMZ-R7 is a single-channel, precision JFET input operational amplifier manufactured by Analog Devices. It features a gain bandwidth product of 25 MHz and a slew rate of 50 V/μs at ±5 V supply. Key electrical parameters include a maximum offset voltage of 100 μV, an input bias current of 10 pA maximum, and a voltage noise density of 6 nV/√Hz. The device operates on dual supplies ranging from ±5 V to ±13 V with a typical supply current of 3.0 mA per amplifier. It is housed in an 8-lead MSOP package.

Feature Summary

• JFET input architecture providing ultralow offset voltage and drift alongside very low input bias current across the full operating temperature range.
• High-speed dynamic performance characterized by a 25 MHz gain bandwidth product and fast settling time to 0.01% accuracy.
• Unconditional stability with capacitive loads exceeding 1000 pF in noninverting unity gain configurations without external compensation.
• No phase reversal behavior when inputs are forced beyond the common-mode voltage range.

Applications

• Photodiode amplifiers
• Automated test equipment (ATE)
• Instrumentation and sensors
• High-performance filters
• Fast precision integrators

Procurement Notes

Verify the specific suffix 'R7' indicates tape and reel packaging for the MSOP variant. Confirm the device grade matches requirements for offset voltage specifications. Ensure the ordering part number aligns with the single-channel configuration rather than the dual-channel AD8620. Cross-reference the datasheet revision to confirm current electrical characteristics.

Selection Notes

Select this component for applications requiring high precision combined with wide bandwidth and low noise. The JFET input stage is suitable for high-impedance sources where low bias current is critical. Consider the MSOP package for space-constrained designs. Verify that the ±5 V to ±13 V supply range fits the system power constraints.

Part Context

The AD8610 is part of the AD8610/AD8620 family of precision, very low noise, wide bandwidth JFET operational amplifiers. The AD8610 represents the single-channel version of this series, while the AD8620 provides two channels in the same package footprint. Both utilize the XFCB process for high speed and low power consumption.

Replacement Considerations

The AD8620 serves as a dual-channel alternative within the same family. Other precision JFET amplifiers may offer similar performance but require verification of pin compatibility and electrical specifications against the AD8610 datasheet.

FAQ

Does the AD8610 exhibit phase reversal?

No, the AD8610 is designed to prevent phase reversal even when one or both inputs are forced beyond their input common-mode voltage range.

What is the maximum capacitive load the AD8610 can drive?

The AD8610 is stable with capacitive loads well in excess of 1000 pF in noninverting unity gain configurations.

How does the input bias current behave over temperature?

Unlike many JFET amplifiers, the AD8610 maintains very low input bias currents across the entire operating temperature range, typically less than 200 pA at 85°C.