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AD8531AR
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Product Detailed Parameters
- Description：IC OPAMP GP R-R CMOS 3MHZ 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Amplifier Type：General Purpose
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：5V/µs
- Gain Bandwidth Product：3 MHz
- Current - Input Bias：5 pA
- Voltage - Input Offset：25 mV
- Current - Supply：750µA
- Current - Output / Channel：250 mA
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：6 V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：-
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Overview
The AD8531AR is a single-supply operational amplifier from Analog Devices, featuring rail-to-rail input and output capabilities. It operates within a supply voltage range of 2.7 V to 6 V and delivers a high output current of ±250 mA. The device offers a gain bandwidth product of 3 MHz and a slew rate of 5 V/μs at 5 V supplies. Supply current consumption is typically 750 μA per amplifier. It is specified over an extended industrial temperature range of −40°C to +85°C.
Feature Summary
- Single-supply operation with rail-to-rail input and output swing
- High output drive capability of ±250 mA for resistive or capacitive loads
- Low supply current consumption of 750 μA per amplifier
- Unity gain stable with no phase reversal
Applications
- Multimedia audio amplification
- LCD drivers
- ASIC input or output buffering
- Headphone drivers
Procurement Notes
Verify the package suffix 'R' corresponds to the 8-lead SOIC configuration as documented in the official datasheet. Confirm that the component meets the required extended industrial temperature specifications (-40°C to +85°C). Ensure compatibility with single-supply systems operating between 2.7 V and 6 V. Cross-reference the manufacturer's ordering guide to validate the specific part number against current production status.
Selection Notes
Select this component when driving heavy capacitive loads such as LCD panels or requiring high output current without sacrificing low power consumption. The rail-to-rail input and output characteristics make it suitable for buffering CMOS DACs or ASICs in single-supply environments. Consider thermal resistance limits when calculating maximum load currents to prevent exceeding junction temperature ratings.
Part Context
The AD8531 is part of the AD853x family, which includes dual (AD8532) and quad (AD8534) variants. These amplifiers share identical electrical characteristics but differ in package configurations and channel counts. The family is designed for applications requiring high output current drive and stability with capacitive loads while maintaining low power consumption.
Replacement Considerations
Direct substitutes include AD8532AR and AD8534AR for multi-channel requirements. Verify pinout compatibility if replacing with other single-supply rail-to-rail amplifiers. Ensure equivalent output current and bandwidth specifications are met for the target application.
