AD8527ARZ

Overview

The AD8527ARZ is a dual operational amplifier from Analog Devices, housed in an 8-lead SOIC package. It features a 7 MHz gain bandwidth product and an 8 V/µs slew rate. The device supports single supply operation from 1.8 V to 6 V with a typical supply current of 900 µA per amplifier at 5 V. Input offset voltage is typically 1.3 mV, rising to a maximum of 5 mV across the extended industrial temperature range of –40°C to +125°C. It offers rail-to-rail input and output capabilities.

Feature Summary

• Rail-to-rail input and output stages enable full signal swing capability even at low supply voltages as low as 1.8 V.
• High-speed performance characterized by a 7 MHz gain bandwidth product and 8 V/µs slew rate suitable for driving ASIC inputs.
• Low power consumption with a typical supply current of 900 µA per amplifier at 5 V, ideal for battery-powered applications.
• Extended industrial temperature rating spanning from –40°C to +125°C ensures reliable operation in harsh environments.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'R' corresponds to the 8-lead SOIC package variant. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer documentation. Ensure the operating environment remains within the specified –40°C to +125°C temperature range to maintain electrical characteristics. Check for ESD sensitivity precautions during handling and storage.

Selection Notes

Select this component when a dual amplifier configuration is required for space-constrained designs utilizing surface-mount technology. It is appropriate for applications demanding rail-to-rail signal integrity at low supply voltages. 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 budget constraints for portable devices.

Part Context

The AD8527ARZ belongs to the AD85x7 family of low voltage operational amplifiers manufactured by Analog Devices. This family includes the single-channel AD8517 and the dual-channel AD8527 variants. They are fabricated using a high-speed complementary bipolar process designed to minimize parasitic capacitance while maintaining precision and low power consumption.

Replacement Considerations

Consult official cross-reference tools for parametrically similar parts. Verify pin compatibility and electrical specifications before substitution.

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 stably in unity gain?

In a unity gain configuration, the device can drive up to 400 pF of capacitance before instability occurs.