MAX6225BCSA+

Overview

The MAX6225BCSA+ is a low-noise, precision voltage reference featuring buried-zener technology. It provides a fixed 2.500V output with ±0.02% initial accuracy and a maximum temperature coefficient of 5.0ppm/°C. The device operates within an input voltage range of 8V to 36V and supports source/sink currents up to 15mA. It consumes approximately 18mW power and exhibits 1.5µVP-P noise in the 0.1Hz to 10Hz bandwidth. Designed for industrial applications, it functions reliably from 0°C to +70°C in an 8-pin SO package.

Feature Summary

• Utilizes buried-zener technology for minimal noise performance
• Offers optional external trimming and noise reduction capabilities
• Maintains stability across all capacitive loads
• Features industry-standard pinout configuration

Applications

• High-resolution analog-to-digital converters
• Digital-to-analog converter systems
• High-accuracy industrial process control
• Precision current sources

Procurement Notes

Verify the specific suffix 'CSA+' indicates the 8-pin Small Outline package variant. Confirm the 'B' grade designation aligns with the required 5.0ppm/°C maximum temperature coefficient specifications. Ensure the component meets RoHS compliance requirements for lead-free packaging as indicated by the plus sign in the part number.

Selection Notes

Select this component when a fixed 2.5V reference is required with moderate temperature stability. The B-grade specification suits applications tolerating up to 5.0ppm/°C drift. Consider the 8-pin SO package constraints for board space. Evaluate if the 15mA load capability meets system drive requirements without exceeding thermal limits.

Part Context

This device belongs to the MAX6225/MAX6241/MAX6250 family of low-noise precision references. While the MAX6241 outputs 4.096V and the MAX6250 outputs 5.000V, the MAX6225 is specifically configured for 2.500V. All variants share identical pinouts and general electrical characteristics, differing primarily in nominal output voltage and specific trim ranges.

Replacement Considerations

The MAX6225ACSA+ serves as a higher-precision alternative offering a lower maximum temperature coefficient of 2.0ppm/°C. Both devices utilize the same 8-pin SO package and buried-zener architecture, ensuring direct pin compatibility for upgrades requiring tighter thermal stability.

FAQ

How can wideband noise be reduced on the MAX6225BCSA+?

Add a 1μF capacitor between the NR (Noise Reduction) pin and ground to augment wideband noise reduction.

Is the MAX6225BCSA+ stable with capacitive loads?

Yes, the device is designed to remain stable with capacitive load values ranging from 0μF to 100μF for all load currents.