AD8698ARM-R2

Overview

The AD8698ARM-R2 is a dual precision operational amplifier from Analog Devices, housed in an 8-lead MSOP package. It features rail-to-rail output capability and operates within a supply voltage range of ±2.5 V to ±15 V across a temperature range of −40°C to +85°C. Key electrical specifications include a maximum offset voltage of 100 µV, a maximum input bias current of 700 pA, and a low noise density of 8 nV/√Hz at 1 kHz. The device provides a gain bandwidth product of 1 MHz and a slew rate of 0.4 V/µs.

Feature Summary

• Rail-to-rail output maximizes dynamic range for interfacing with ADCs and DACs.
• Low offset voltage and drift eliminate the need for manual trimming.
• Internal overvoltage protection allows inputs to exceed supply rails.
• Capable of driving heavy capacitive loads without external compensation.

Applications

• Photodiode amplifiers
• Sensors and controls
• Multipole filters
• Integrators

Procurement Notes

Verify the specific ordering suffix RM-8 corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the component meets all necessary environmental and safety standards applicable to the target deployment region before finalizing procurement orders.

Selection Notes

Select this component when high DC accuracy and low noise are critical requirements. The dual configuration offers space efficiency compared to single-channel alternatives. Ensure the application does not require phase reversal immunity beyond the specified operating conditions or demands higher slew rates than the provided 0.4 V/µs specification.

Part Context

This part belongs to the AD8698 family of precision amplifiers designed for applications requiring high impedance sensing and minimal signal distortion. The ARM variant specifically denotes the MSOP package option, distinguishing it from the SOIC versions available within the same functional series.

Replacement Considerations

Direct substitutes include other dual precision op-amps with rail-to-rail outputs such as the LMP2011 or LMV2011, though pin compatibility and exact electrical matching must be verified against the original design constraints.