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Product Detailed Parameters
- Description：IC VREF SERIES 0.04% 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：0°C ~ 70°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 MAX6225ACSA+T is a low-noise, precision voltage reference utilizing buried-zener technology. It provides a fixed 2.500V output with ±0.02% initial accuracy and a maximum temperature coefficient of 2.0ppm/°C. The device operates within an input voltage range of 8V to 36V and draws a typical supply current of 2.7mA. It supports source and sink currents up to 15mA and features optional external trimming and noise reduction capabilities.
Feature Summary
- Buried-zener technology ensures extremely low noise performance for high-resolution applications
- Offers optional external trimming and noise reduction via dedicated pins
- Maintains stability across all capacitive loads from 0μF to 100μF
Applications
- High-Resolution Analog-to-Digital and Digital-to-Analog Converters
- High-Accuracy Reference Standard
- Digital Voltmeters
- Precision Current Sources
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the AC designation corresponds to the 0°C to +70°C operating temperature range and the 2.0ppm/°C maximum temperature coefficient. Ensure compatibility with 8-pin SOIC footprints during PCB layout.
Selection Notes
Select this part for systems requiring laboratory-standard temperature stability without heated references. Consider the buried-zener architecture for superior low-frequency noise compared to bandgap alternatives. Evaluate the need for external trimming if tighter than ±0.02% accuracy is required.
Part Context
This component belongs to the MAX6225/MAX6241/MAX6250 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The MAX6225 variant specifically targets the 2.5V output requirement, while other family members provide 4.096V or 5.000V outputs using identical pinouts and core technologies.
Replacement Considerations
Direct replacements include MAX6225ACPA+, MAX6225AEPA+, and MAX6225AESA+. Verify package type (SO vs. DIP) and temperature grade (C vs. E) match application requirements.
FAQ
How can wideband noise be reduced on the MAX6225?
Add a 1μF capacitor to the NR (Noise Reduction) pin. Larger values do not improve noise appreciably.
What is the purpose of the TRIM pin?
The TRIM pin allows for external adjustment of the output voltage by connecting a potentiometer between OUT and GND, enabling a minimum 0.6% trim range.
