MAX6250BCSA

Overview

The MAX6250BCSA+ is a precision voltage reference featuring buried-zener technology, delivering a fixed 5.000V output with ±0.1% initial accuracy and a maximum temperature coefficient of 5ppm/°C. It operates within an input voltage range of 8V to 36V, drawing approximately 3.3mA supply current while supporting ±15mA source/sink load currents. The device exhibits low noise (3µVp-p from 0.1Hz to 10Hz) and excellent long-term stability (20ppm/1000h). Packaged in an 8-SOIC format, it functions reliably across a commercial temperature range of 0°C to +70°C.

Feature Summary

• Utilizes buried-zener technology for superior noise performance and stability
• Provides optional external trimming and noise reduction capabilities
• Supports continuous short-circuit protection to ground at lower input voltages
• Maintains stability with capacitive loads ranging from 0µF to 100µF

Applications

• High-resolution analog-to-digital and digital-to-analog converters
• High-accuracy industrial and process control systems
• Digital voltmeters and high-accuracy reference standards
• ATE equipment and precision current sources

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C) and 'B' denotes the ±0.1% accuracy class. Confirm RoHS compliance status via the '+' designation. Ensure the 8-SOIC package matches your PCB footprint requirements. Cross-reference the datasheet revision history for any parameter updates before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 5V reference with high precision is required without active heating. Consider the MAX6250ACSA+ variant if a tighter temperature coefficient of 2ppm/°C is necessary. Evaluate the MAX6250AEPA+ or BEPA+ versions for extended industrial temperature ranges (-40°C to +85°C). Ensure input voltage remains within the 8V to 36V operational limits for optimal regulation.

Part Context

Part of the MAX6225/MAX6241/MAX6250 family of low-noise precision references. Shares identical pinouts and features with the 2.5V (MAX6225) and 4.096V (MAX6241) counterparts. Designed for applications requiring industry-standard pinout compatibility and low power consumption compared to heated references.

Replacement Considerations

Direct functional substitutes include MAX6250ACSA+ for improved temperature stability. For extended temperature ranges, consider MAX6250BEPA+. Verify pin compatibility and thermal characteristics when substituting packages.

FAQ

How does the NR pin function?

Connecting a capacitor to the NR pin reduces wideband noise. A 1µF capacitor is recommended for significant noise reduction.

Can the output voltage be adjusted?

Yes, the TRIM pin allows for external adjustment of the output voltage using a potentiometer connected between OUT and GND.