AD8527AR-REEL7

Overview

The AD8527AR-REEL7 is a dual rail-to-rail input and output operational amplifier from Analog Devices, housed in an 8-lead SOIC package. It operates on a single supply voltage 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. Maximum input offset voltage is specified at 3.5 mV across the extended industrial temperature range of –40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability enables full signal swing utilization even at low supply voltages as low as 1.8 V.
• Space-saving 8-lead SOIC packaging facilitates placement near sensors to reduce external noise pickup in compact designs.
• Low supply current consumption makes the component suitable for battery-powered applications requiring extended operational life.

Applications

• Portable communications equipment
• Active filters
• ASIC input drivers

Procurement Notes

Verify that the ordering suffix REEL7 corresponds to tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the manufacturer designation matches Analog Devices Inc. specifications. Ensure the part meets RoHS compliance requirements for environmental standards. Check for any specific lot traceability documentation required by your quality management system before finalizing procurement orders.

Selection Notes

Select this component when dual-channel amplification is required within space-constrained portable devices. The rail-to-rail architecture supports single-supply operation down to 1.8 V, ideal for battery discharge profiles. Consider the 7 MHz bandwidth and 8 V/µs slew rate for driving ASIC inputs or moderate-speed signal processing tasks where low power consumption is critical.

Part Context

The AD8527 is the dual-channel variant of the AD8517 family, fabricated using Analog Devices' XFCB complementary bipolar process. While the AD8517 is available in a 5-lead SOT-23 package, the AD8527 utilizes 8-lead SOIC or MSOP packages. Both share identical electrical characteristics, including the 7 MHz gain bandwidth product and rail-to-rail input/output performance.

Replacement Considerations

The AD8527ARMZ serves as a direct pin-compatible alternative packaged in 8-lead MSOP format. Verify thermal resistance differences between SOIC and MSOP packages if heat dissipation is a design constraint. Ensure functional equivalence regarding offset voltage and bandwidth specifications when substituting other dual op-amp models.

FAQ

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

No, the AD85x7 family exhibits no phase reversal as the input signal exceeds the supply by more than 0.6 V.

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

In a unity gain configuration, the AD8527 can drive a maximum capacitance of 400 pF before instability occurs.