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AD8544ARZ
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Product Detailed Parameters
- Description：IC OPAMP GP 4 CIRCUIT 14SOIC
- Series：AD854xA
- Mfr：UMW
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Standard
- Number of Circuits：4
- Output Type：Single Ended, Rail-to-Rail
- Slew Rate：0.8V/µs
- Gain Bandwidth Product：1.1 MHz
- Current - Input Bias：1 pA
- Voltage - Input Offset：500 µV
- Current - Supply：85µA (x4 Channels)
- Current - Output / Channel：40 mA
- Voltage - Supply Span (Min)：2.3 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOP
- -3db Bandwidth：-
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Overview
The AD8544ARZ is a quad, low-voltage micro-power CMOS voltage feedback operational amplifier manufactured by UMW. It features a gain-bandwidth product of 1.1 MHz and a slew rate of 0.8 V/μs with a quiescent current of 85 μA per amplifier at 5V. The device offers rail-to-rail input and output capabilities, supporting supply voltages from +2.3V to +5.5V. Key electrical characteristics include a maximum input offset voltage of 3.5 mV, an input bias current of 1 pA, and operation over an extended industrial temperature range of -40°C to +125°C.
Feature Summary
- Rail-to-rail input and output swing capability for wide dynamic range
- Ultra-low input bias current in the picoampere range
- High open-loop gain exceeding 100 dB for precision applications
- Unit-gain stable design suitable for general-purpose use
Applications
- Smoke, gas, and environmental sensors
- Audio output stages
- Active filters and ASIC input or output amplifiers
- Sensor interfaces and portable equipment
Procurement Notes
Verify that the component matches the UMW manufacturer designation and the specific AD8544 model number. Confirm the package type corresponds to the required 14-lead TSSOP or SOP configuration. Ensure the operating temperature range meets the -40°C to +125°C requirement for your specific application environment.
Selection Notes
Select this component when low power consumption is critical alongside rail-to-rail signal handling. The 1.1 MHz bandwidth and 0.8 V/μs slew rate support moderate-speed signal processing. Consider the 85 μA quiescent current per channel for battery-powered designs requiring efficient energy usage.
Part Context
This part belongs to the AD854x family, which includes single (AD8541), dual (AD8542), and quad (AD8544) configurations. All variants share identical electrical specifications and are designed for general-purpose applications requiring optimal performance in low-voltage systems.
Replacement Considerations
Direct substitutes within the same family include the AD8541 (single channel) and AD8542 (dual channel). Verify pin compatibility and package dimensions before substituting with other manufacturers' parts.
