AD8617ARMZ

Overview

The AD8617ARMZ is a dual-channel, low-cost micropower CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates from a single supply of 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical specifications include a maximum offset voltage of 2.2 mV, a maximum input bias current of 1 pA, and a typical voltage noise density of 22 nV/√Hz at 10 kHz. The device draws a maximum supply current of 50 μA per amplifier over the operating temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in low-voltage single-supply systems.
• Micropower consumption with very low input bias current suitable for portable applications.
• Low noise performance with minimal phase reversal during overload conditions.
• Unity gain stable design compatible with wide output swing devices.

Applications

• Battery-powered instrumentation
• Multipole filters
• Current shunt sense circuits
• ADC predrivers
• DAC drivers and level shifters

Procurement Notes

Verify the specific package variant (MSOP-8) and RoHS compliance status when ordering. Confirm that the component meets the required automotive qualification standards if intended for such environments, as standard commercial models differ from W-qualified variants. Ensure the supplier provides valid traceability documentation for the manufacturing lot.

Selection Notes

Select this component for designs requiring low power consumption alongside high precision in single-supply environments. The rail-to-rail I/O characteristic makes it ideal for buffering ADCs and DACs where maximizing dynamic range is critical. Consider the low input bias current for high-impedance sensor interfaces.

Part Context

This part belongs to the AD8613/AD8617/AD8619 family of low-cost micropower amplifiers. While sharing core electrical characteristics, the AD8617 specifically denotes the dual-channel configuration housed in an 8-lead MSOP package. Other family members offer single or quad channel options in different form factors.

Replacement Considerations

Direct functional substitutes within the same family include the AD8613 (single channel) and AD8619 (quad channel). Automotive qualified equivalents are designated with the 'W' suffix, such as the AD8617WARMZ. Verify pinout compatibility and thermal resistance differences when transitioning between package types.

FAQ

Does the AD8617 experience phase reversal when the input exceeds the common-mode range?

No, the datasheet explicitly states that the device features no phase reversal, ensuring stable operation even under overload conditions.

What is the maximum supply voltage for the AD8617ARMZ?

The absolute maximum supply voltage rating is 6 V. The recommended operating range is from 1.8 V to 5.5 V on a single supply.