AD8647ARMZ

Overview

The AD8647ARMZ is a dual-channel, rail-to-rail input and output CMOS operational amplifier featuring a low-power shutdown function. It operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device provides a gain bandwidth product of 24 MHz and a slew rate of 11 V/μs. Input bias current is typically 1 pA, with an offset voltage maximum of 2.5 mV. Supply current per amplifier is 2 mA maximum, dropping to 10 nA in shutdown mode. It is housed in a 10-lead MSOP package.

Feature Summary

• Integrated low-power shutdown function for extended battery life
• Rail-to-rail input and output capability for maximum dynamic range
• High-speed performance with 24 MHz bandwidth and 11 V/μs slew rate
• Low noise density and minimal input bias current

Applications

• Battery-powered instruments
• Multipole filters
• ADC front ends
• Sensors
• Barcode scanners

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping format. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing process. Confirm that the logic levels for the shutdown pins align with your system's control voltages before finalizing procurement.

Selection Notes

Select this component when both high-speed signal processing and power conservation are required. The integrated shutdown feature distinguishes it from standard amplifiers by allowing active power management. Verify that the 10-lead MSOP package fits within your board layout constraints compared to the 8-lead variants available in the same family.

Part Context

This part belongs to the AD8646/AD8647/AD8648 series of precision amplifiers. While sharing core electrical characteristics like bandwidth and noise, the AD8647 is uniquely defined by its dual-channel configuration combined with dedicated shutdown inputs. This differentiates it from the non-shutdown AD8646 and the quad-channel AD8648.

Replacement Considerations

The AD8646ARMZ serves as a functional substitute if the shutdown capability is not utilized in the design. However, pin compatibility must be verified due to the difference between the 8-lead and 10-lead packages.