AD8527ARM-REEL

Overview

The AD8527ARM-REEL is a dual, low-voltage, rail-to-rail operational amplifier from Analog Devices. It operates on single supplies ranging from 1.8 V to 6 V with a typical supply current of 900 µA per amplifier at 5 V. The device features a gain bandwidth product of 7 MHz and a slew rate of 8 V/µs. Key electrical specifications include a maximum input offset voltage of 3.5 mV (5 mV over the extended temperature range) and an input bias current of 450 nA. It is housed in an 8-lead MSOP package and supports operation from -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability allows full signal swing across the entire supply voltage range.
• Low power consumption makes it suitable for battery-powered portable applications.
• High-speed performance with 7 MHz gain bandwidth and 8 V/µs slew rate.
• Extended industrial temperature range ensures reliable operation in harsh environments.

Applications

• Portable communications equipment
• Active filters
• ASIC input drivers
• Sensor interface circuits

Procurement Notes

Verify that the ordering suffix matches the required package type and reel configuration. Confirm the specific revision level aligns with design requirements. Ensure ESD precautions are observed during handling due to device sensitivity. Cross-reference the manufacturer's latest datasheet for any updates to absolute maximum ratings or thermal characteristics before finalizing procurement.

Selection Notes

Select this component when a dual amplifier with rail-to-rail I/O is needed in a compact MSOP package. It is appropriate for designs requiring low supply voltage operation down to 1.8 V. Consider the 7 MHz bandwidth and 8 V/µs slew rate for moderate-speed signal processing tasks. Evaluate the 900 µA supply current against system power budgets for battery-operated devices.

Part Context

This part belongs to the AD8517/AD8527 family of low-voltage operational amplifiers. The AD8527 variant specifically provides two amplifiers in one package, unlike the single-channel AD8517. The 'RM' suffix indicates the 8-lead Micro Small Outline Package (MSOP), and '-REEL' denotes tape-and-reel packaging for automated assembly.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as the AD8527AR (SOIC package). Verify that any substitute maintains the 1.8 V minimum supply voltage and rail-to-rail input/output specifications. Ensure the replacement offers comparable bandwidth and slew rate for the intended application.

FAQ

Does the AD8527 exhibit phase reversal when the input exceeds the supply rails?

No, the AD8527 does not exhibit phase reversal even if the input signal exceeds the supply voltage by more than 0.6 V.

What is the maximum capacitive load the AD8527 can drive stably in unity gain?

In a unity gain configuration, the AD8527 can drive up to 400 pF of capacitive load without instability.