AD8544ARZ-REEL7

Overview

The AD8544ARZ-REEL7 is a quad CMOS rail-to-rail general-purpose operational amplifier from Analog Devices. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a low supply current of 45 µA per amplifier. The device features a gain bandwidth product of 1 MHz, an input bias current as low as 4 pA, and unity gain stability. It supports the extended industrial temperature range from -40°C to +125°C and is housed in a 14-lead SOIC package.

Feature Summary

• Rail-to-rail input and output capabilities for maximum dynamic range
• Very low input bias current suitable for high impedance sources
• Low power consumption optimized for battery operation
• No phase reversal during overload conditions

Applications

• ASIC input or output amplifiers
• Sensor interfaces
• Piezoelectric transducer amplifiers
• Photodiode amplifiers
• Comparator functions

Procurement Notes

Verify that the specific REEL7 suffix corresponds to the required tape and reel packaging quantity of 1000 units. Confirm the RoHS compliant status indicated by the Z suffix matches project environmental requirements. Ensure the standard commercial grade meets the necessary operating temperature specifications.

Selection Notes

Select this component when multiple channels are required in a single package to save board space. It is appropriate for designs needing rail-to-rail performance at low supply voltages. Consider its low quiescent current for portable applications where power efficiency is critical.

Part Context

This part belongs to the AD854x family, which includes single (AD8541) and dual (AD8542) variants. The AD8544 specifically provides four independent amplifiers. The R suffix denotes the SOIC package, while the REEL7 suffix indicates the specific reel packaging format.

Replacement Considerations

Direct functional replacements within the same package include the AD8544ARZ for tube packaging. For automotive applications, consider the AD8544WARZ series, noting potential specification differences.