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AD8542AR
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Product Detailed Parameters
- Description：IC OPAMP GP R-R CMOS 1MHZ 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Amplifier Type：General Purpose
- Number of Circuits：2
- Output Type：Rail-to-Rail
- Slew Rate：0.92V/µs
- Gain Bandwidth Product：1 MHz
- Current - Input Bias：4 pA
- Voltage - Input Offset：1 mV
- Current - Supply：45µA (x2 Channels)
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°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 AD8542AR is a dual-channel CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical supply current of 45 µA per amplifier. The device provides a gain-bandwidth product of 1 MHz and maintains unity gain stability. Input bias current is typically 4 pA, supporting high source impedance applications. It functions within an extended industrial temperature range of -40°C to +125°C.
Feature Summary
- Rail-to-rail input and output swing capability for single-supply systems
- Low power consumption with 45 µA supply current per amplifier
- High input impedance with extremely low input bias current
- Unity-gain stable operation without phase reversal
Applications
- ASIC input or output buffering
- Sensor interfaces
- Piezoelectric transducer amplifiers
- Medical instrumentation
- Portable battery-powered systems
Procurement Notes
Verify the specific package marking code AVA corresponds to the intended SOIC-8 variant. Confirm RoHS compliance status indicated by the Z suffix if required. Ensure the ordering quantity matches the tube packing specifications provided in the manufacturer's guide. Cross-reference the revision history for any recent electrical characteristic updates.
Selection Notes
Select this component when low power consumption is critical alongside rail-to-rail signal handling. The 1 MHz bandwidth supports moderate-speed signal processing. Verify that the 4 pA input bias current meets the requirements for high-impedance sensor sources. Ensure the operating voltage remains within the 2.7 V to 5.5 V range for optimal performance.
Part Context
This part belongs to the AD854x family of general-purpose amplifiers, which includes single (AD8541) and quad (AD8544) channel variants. All members share similar electrical characteristics, including low supply current and wide bandwidth. The AD8542 specifically integrates two independent amplifiers in an 8-lead surface-mount package.
Replacement Considerations
Direct substitutes include AD8542ARMZ (MSOP package) and AD8542ARUZ (TSSOP package). Other family members like AD8541 or AD8544 offer different channel counts but share identical electrical specifications.
