MAX6143BASA50+

Overview

The MAX6143BASA50+ is a high-precision voltage reference providing a fixed +5.0V output in an 8-pin SO package. It features a maximum temperature coefficient of 10ppm/°C and initial accuracy of 0.1%. The device accepts input voltages from VOUT + 2V up to +40V, drawing 340µA typical supply current. It sources 30mA and sinks 2mA load current. An active-low shutdown pin reduces current to 0.01µA. A TEMP pin provides a linear temperature transducer output proportional to die temperature.

Feature Summary

• Integrated linear temperature sensor output proportional to die temperature
• Active-low shutdown capability for ultra-low power consumption
• Output voltage trimming via external resistive divider network
• Stable with capacitive loads up to 100µF without external bypass capacitor

Applications

• High-resolution analog-to-digital converters
• Digital-to-analog converters
• Precision digital voltmeters
• Threshold detectors

Procurement Notes

Verify the suffix 'A' indicates the 8-pin Small Outline package and 'S' denotes the automotive temperature range (-40°C to +125°C). Confirm the 'B' grade specifies the 10ppm/°C temperature coefficient and 0.1% initial accuracy. Ensure the '+'' suffix indicates lead-free and RoHS compliance. Cross-reference the full part number against the manufacturer's official selector guide to confirm availability and exact electrical specifications.

Selection Notes

Select this component when a fixed 5.0V reference is required with integrated temperature sensing capabilities. The B-grade specification suits applications tolerating 10ppm/°C drift rather than the tighter A-grade performance. Consider the low quiescent current and shutdown feature for battery-operated systems. Verify that the input voltage range accommodates the system's supply rails relative to the 5.0V output.

Part Context

This device belongs to the MAX6143 family of high-precision voltage references manufactured by Analog Devices Inc./Maxim Integrated. The family offers various preset output voltages including 2.5V, 3.3V, 4.096V, 5.0V, and 10V. Variants are available in A-grade (tighter specs) and B-grade configurations, all featuring laser-trimmed thin-film resistors and curvature-correction circuits for stability.

Replacement Considerations

Direct substitutes within the same family include MAX6143AASA50+ for tighter temperature coefficient specifications. Other output voltage variants like MAX6143BASA25+ or MAX6143BASA10+ share identical pinouts and features but provide different reference voltages.