AD8534ARUZ

Overview

The AD8534ARUZ is a quad rail-to-rail input/output single-supply operational amplifier manufactured by Analog Devices Inc. It operates on a supply voltage range of 2.7 V to 6 V and provides a high output drive current of ±250 mA per channel. The device features a gain bandwidth product of 3 MHz and a slew rate of 5 V/µs at 5 V supply. Each amplifier consumes 750 µA of supply current at 5 V. Input bias current is typically 5 pA, with an offset voltage maximum of 25 mV. The component is available in a 14-lead TSSOP surface-mount package and is rated for operation within the extended industrial temperature range of -40°C to +85°C.

Feature Summary

• Features rail-to-rail input and output capabilities allowing full signal swing across the supply rails.
• Provides high output drive current capability suitable for driving resistive or capacitive loads directly.
• Operates stably with heavy capacitive loads without requiring external compensation components.
• Maintains low power consumption while delivering high current to control high-current loads.

Applications

• Multimedia audio amplification
• LCD drivers
• ASIC input or output buffering
• Headphone drivers

Procurement Notes

Verify that the ordering suffix matches the required package type and tape-and-reel configuration. Confirm the specific revision level against the manufacturer's datasheet to ensure compatibility with design specifications. Check for automotive qualification requirements if the application demands it, as standard versions may differ from qualified variants.

Selection Notes

Select this component when single-supply operation with rail-to-rail performance is required alongside significant load driving capability. Consider the thermal resistance characteristics of the 14-lead TSSOP package when designing for high continuous load currents to prevent junction temperature exceedance. Ensure input voltages do not exceed supply rails to avoid internal junction damage due to the lack of input overvoltage protection circuitry.

Part Context

The AD8534ARUZ belongs to the AD853x family of low-cost, high-output current amplifiers. This family includes the single-channel AD8531 and dual-channel AD8532 variants. All members share identical electrical characteristics, including the 250 mA output drive and 3 MHz bandwidth, differing only in the number of integrated amplifier channels and their respective pin counts and packages.

Replacement Considerations

Direct functional substitutes within the same series include the AD8531 (single channel) and AD8532 (dual channel). For multi-channel designs requiring different pinouts, verify pin compatibility carefully. Automotive-grade equivalents such as the AD8534ARUZ-REEL are available for applications requiring specific reliability standards.