MAX6325ESA+

Overview

The MAX6325ESA+ is a low-noise, precision voltage reference utilizing buried-zener technology. It provides a fixed 2.5V output with an initial accuracy of ±0.04% and a maximum temperature coefficient of 1.5ppm/°C. The device operates within an input voltage range of 8V to 36V and supports load regulation for source and sink currents up to 15mA. It features ultra-low noise performance, specified at 1.5µVp-p from 0.1Hz to 10Hz. Power consumption is approximately 18mW, with a supply current of 3.0mA maximum. The component is housed in an 8-pin SO package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes buried-zener technology for superior noise reduction and stability
• Offers optional external trimming and noise reduction capabilities via dedicated pins
• Maintains stability with all capacitive loads ranging from 0µF to 100µF
• Features industry-standard pinout configuration for simplified integration

Applications

• High-resolution analog-to-digital converters
• Digital-to-analog converter systems
• High-accuracy industrial process control equipment
• Precision digital voltmeters
• Automated test equipment

Procurement Notes

Verify the specific suffix 'ESA+' corresponds to the required 8-pin SO package and extended temperature range (-40°C to +85°C). Confirm that the ordering code matches the exact electrical tolerances and package style needed for your design. Cross-reference the manufacturer's latest documentation to ensure the component remains active and compliant with current environmental standards before finalizing procurement.

Selection Notes

Select this component when designing high-resolution data-conversion systems requiring exceptional voltage stability and minimal noise. The buried-zener architecture ensures low drift over time and temperature. Consider the available trim and noise reduction pins if your application demands tighter tolerance or lower wideband noise than the standard specifications provide.

Part Context

This part belongs to the MAX6325/MAX6341/MAX6350 family of precision voltage references. While the MAX6341 provides 4.096V and the MAX6350 provides 5V, the MAX6325 is specifically configured for a 2.5V output. All members share identical pinouts, packaging options, and core architectural features, differing primarily in their factory-set output voltages.

Replacement Considerations

Direct functional substitutes within the same series include the MAX6341ESA+ (4.096V) and MAX6350ESA+ (5V), provided the circuit voltage requirements are adjusted accordingly. Other packages such as Plastic DIP (EPA) or CERDIP (MJA) offer alternative thermal and mechanical profiles but must be verified for compatibility.