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AD8538ARZ-REEL
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Product Detailed Parameters
- Description：IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Amplifier Type：Zero-Drift
- Number of Circuits：1
- Output Type：-
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：430 kHz
- Current - Input Bias：15 pA
- Voltage - Input Offset：5 µV
- Current - Supply：150µA
- Current - Output / Channel：25 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 AD8538ARZ-REEL is a single-channel, low power, precision auto-zero operational amplifier manufactured by Analog Devices. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports dual supplies of ±1.35 V to ±2.5 V. The device features a maximum input offset voltage of 13 µV with an extremely low drift of 0.03 µV/°C over the extended industrial temperature range of -40°C to +125°C. Key electrical specifications include a gain-bandwidth product of 430 kHz, a typical supply current of 180 µA, and an input bias current of 25 pA. It is housed in an 8-lead narrow body SOIC package.
Feature Summary
- Auto-zero architecture ensures ultra-low offset voltage and minimal drift for high precision applications
- Single-supply operation optimized for battery-powered and portable equipment
- High common-mode rejection ratio and power supply rejection ratio
- Low input bias current suitable for high impedance sensor interfaces
Applications
- Mobile communications
- Portable instrumentation
- Battery-powered devices
- Sensor interfaces
- Temperature measurement
Procurement Notes
Verify that the specific part number matches the required package type and reel configuration. Confirm RoHS compliance status as indicated by the suffix. Ensure the operating environment falls within the specified temperature range. Check for any automotive qualification requirements if applicable, as standard commercial parts differ from qualified automotive models.
Selection Notes
Select this component when high DC precision is required alongside low power consumption. The auto-zero technique eliminates the need for external chopper stabilization circuits. Consider the 430 kHz bandwidth for signal conditioning tasks. Verify that the load capacitance does not exceed stability limits defined in the performance characteristics.
Part Context
This component belongs to the AD8538/AD8539 family of precision amplifiers. The AD8538 variant provides a single channel, whereas the AD8539 offers dual channels. Both share identical core electrical characteristics but differ in pinout configurations and package options available for each specific model number.
Replacement Considerations
Direct substitutes within the same family include the AD8539ARZ-REEL for dual-channel requirements or the AD8538AUJZ-REEL for TSOT-23 packaging. Automotive qualified versions are designated with the 'W' suffix, such as the AD8538WAUJZ-R7.
