AD8548ARZ-RL

Overview

The AD8548ARZ-RL is a quad micropower, high input impedance operational amplifier from Analog Devices. It features rail-to-rail input and output (RRIO) capabilities, optimized for low power consumption and wide operating supply voltage ranges. The device operates on single supplies from 2.7 V to 18 V or dual supplies from ±1.35 V to ±9 V. Key electrical specifications include a maximum supply current of 22 μA per amplifier, a gain bandwidth product of 240 kHz, and a slew rate of 80 V/ms. It maintains an input bias current of 20 pA maximum and offers excellent electromagnetic interference immunity.

Feature Summary

• Rail-to-rail input and output functionality provides increased dynamic range for driving low-frequency data converters.
• Micropower architecture with 22 μA maximum supply current ensures efficiency in battery-powered applications.
• High input impedance CMOS design minimizes loading effects on signal sources.
• Robust electromagnetic interference rejection enhances performance in noisy environments.

Applications

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

Procurement Notes

Verify the specific ordering suffix RL against the manufacturer's official documentation to confirm reel packaging and quantity specifications. Ensure the component matches the exact part number AD8548ARZ-RL to guarantee compatibility with the intended circuit design and performance requirements.

Selection Notes

Select this component when designing circuits requiring low power consumption alongside wide supply voltage flexibility. The quad configuration is suitable for multi-channel sensor interfaces. Verify that the required gain bandwidth and slew rate meet the system's dynamic signal processing needs before finalizing the design.

Part Context

This component belongs to the AD8546/AD8548 family of micropower operational amplifiers manufactured by Analog Devices. The AD8548 specifically denotes the quad-channel version housed in a 14-lead SOIC_N package. It shares core architectural features with the dual-channel AD8546 but offers four independent amplifier channels within a single integrated circuit.

Replacement Considerations

Consult the manufacturer's datasheet for verified substitute part numbers within the same product family or series. Ensure any replacement maintains identical pinout configurations and meets the original electrical specifications for supply voltage, current, and performance metrics.