AD8548ACPZ-R7

Overview

The AD8548ACPZ-R7 is a quad micropower, high input impedance operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output (RRIO) capabilities and operates on a single supply voltage ranging from 2.7 V to 18 V or dual supplies of ±1.35 V to ±9 V. The device draws a maximum supply current of 22 μA per amplifier. Key electrical specifications include a gain bandwidth product of 240 kHz, a slew rate of 80 V/ms, an input bias current of 20 pA maximum, and an offset voltage of 3 mV maximum at 25°C. It is specified over an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability provides increased dynamic range for driving low frequency data converters.
• Micropower consumption optimized for battery-powered applications with a maximum supply current of 22 μA.
• High immunity to electromagnetic interference (EMI).
• Unity-gain stable CMOS architecture with high input impedance.

Applications

• Portable medical equipment
• Remote sensors
• Transimpedance amplifiers
• Current monitors
• 4 mA to 20 mA loop drivers

Procurement Notes

Verify the specific ordering suffix ACPZ-R7 against the manufacturer's official documentation to confirm package type and reel quantity. Ensure compatibility with the required operating temperature range and supply voltage specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component for designs requiring low power consumption and wide supply voltage flexibility. The RRIO feature makes it suitable for single-supply systems where maximizing signal swing is critical. Consider the 240 kHz bandwidth and 80 V/ms slew rate for applications involving low-frequency signal conditioning and buffering.

Part Context

The AD8548ACPZ-R7 belongs to the AD8546/AD8548 family of micropower operational amplifiers. This series is designed for applications demanding low power usage across a wide operating voltage range. The quad configuration allows multiple channels in a single package, reducing board space compared to individual dual or single op-amp solutions.

Replacement Considerations

Consult the manufacturer's datasheet for verified substitute part numbers within the same product family or equivalent performance specifications. Ensure any replacement maintains the required RRIO functionality, supply voltage range, and package dimensions.