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ADR425ARZ
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Product Detailed Parameters
- Description：IC VREF SERIES 0.12% 8SOIC
- Series：XFET®
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：10 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The ADR425ARZ is a second-generation XFET voltage reference providing a fixed 5.00 V output in an 8-lead SOIC package. It features an initial accuracy of ±0.12% and a temperature coefficient of 10 ppm/°C. The device operates within a supply voltage range of 7 V to 18 V, drawing a maximum quiescent current of 600 µA across the −40°C to +125°C industrial temperature range. It delivers up to 10 mA of load current with low noise performance of 3.4 µV p-p from 0.1 Hz to 10 Hz.
Feature Summary
- Utilizes patented eXtra implanted junction FET (XFET) technology for superior thermal hysteresis and stability compared to band gap references.
- Includes a dedicated trim terminal allowing output voltage adjustment over a ±0.5% range without compromising other performance metrics.
- Offers high output drive capability of 10 mA while maintaining low power consumption suitable for battery-powered applications.
Applications
- Precision data acquisition systems
- High resolution converters
- Optical network control circuits
Procurement Notes
Verify the specific suffix 'R' indicates the standard 8-lead SOIC package configuration. Confirm that the A Grade electrical specifications match the required ±0.12% initial accuracy and 10 ppm/°C temperature coefficient parameters for your design constraints.
Selection Notes
Select this component when a stable 5 V reference is required with minimal low-frequency noise. Ensure the input voltage remains at least 2 V above the output voltage to maintain proper regulation. Consider the trim pin if system-level calibration is necessary to compensate for external circuit errors.
Part Context
This part belongs to the ADR42x series of ultraprecision voltage references manufactured by Analog Devices. The series includes variants with different nominal output voltages such as 2.048 V, 2.500 V, and 3.00 V, all sharing the same underlying XFET architecture and package options.
Replacement Considerations
ADR421ARMZ
FAQ
Can the output voltage be adjusted?
Yes, the TRIM pin allows for adjusting the output voltage over a ±0.5% range without affecting the temperature coefficient.
Is an output capacitor required for stability?
No, the ADR425 does not require an output capacitor for stability under any load condition, though one can be added to filter noise.
