MAX6143AASA41+T

Overview

The MAX6143AASA41+T is a high-precision series voltage reference with an integrated temperature sensor, manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.06% and a maximum temperature coefficient of 3ppm/°C. The device operates from an input voltage range of 6.1V to 40V, drawing a typical supply current of 500µA at +25°C (max 650µA across the operating range). It features an active-low shutdown pin that reduces supply current to 0.01µA. The unit sources up to 30mA and sinks up to 2mA of load current. It utilizes bandgap technology for low noise performance and does not require an external output bypass capacitor for stability.

Feature Summary

• Integrated linear temperature transducer providing a voltage output proportional to die temperature
• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors for high precision
• Active-low shutdown capability significantly reducing quiescent supply current
• Stable operation without requiring an external output bypass capacitor

Applications

• High-resolution A/D converters
• D/A converters
• Threshold detectors
• Digital voltmeters

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Ensure the component matches the required automotive temperature range (-40°C to +125°C) and output voltage tolerance. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a stable 4.096V reference is required alongside on-chip temperature monitoring capabilities. Consider the 30mA sourcing capability for driving moderate loads directly. Evaluate the input voltage requirements to ensure they fall within the specified dropout limits for the 4.096V output variant. Verify that the low-noise characteristics meet the signal integrity requirements of the downstream analog circuitry.

Part Context

This device belongs to the MAX6143 family of high-precision voltage references. The 'A' grade indicates tighter initial accuracy and lower temperature coefficients compared to the 'B' grade. The 'SO' designation refers to the 8-pin Small Outline package. The '+T' suffix typically denotes tape-and-reel packaging for automated assembly, distinct from tube packaging.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.