MAX6143BASA33+

Overview

The MAX6143BASA33+ is a high-precision series voltage reference providing a fixed 3.3V 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, draws 500µA typical supply current at 25°C, and sources 30mA load current. It includes a linear temperature sensor output (TEMP) and an active-low shutdown pin reducing current to 0.01µA.

Feature Summary

• Proprietary curvature-correction circuit with laser-trimmed thin-film resistors for stability
• Integrated linear temperature transducer output proportional to die temperature
• Active-low shutdown capability for ultra-low power consumption
• Stable without external output bypass capacitors

Applications

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

Procurement Notes

Verify the specific suffix 'BASA33+' confirms the 3.3V output voltage, 10ppm/°C temperature coefficient, and 0.1% initial accuracy. Confirm the 'SO' designation matches the required 8-pin Small Outline package dimensions. Ensure the component meets automotive operating temperature requirements if applicable.

Selection Notes

Select this part when a stable 3.3V reference is needed with moderate precision. The B-grade offers lower accuracy than the A-grade but maintains low noise. Consider the integrated TEMP pin for applications requiring simultaneous temperature monitoring alongside voltage referencing.

Part Context

This component belongs to the MAX6143 family of high-precision voltage references. The family utilizes bandgap technology and offers various preset output voltages including 2.5V, 4.096V, 5.0V, and 10V. The B-grade variants provide 10ppm/°C drift and 0.1% accuracy, distinguishing them from the higher-precision A-grade counterparts.

Replacement Considerations

MAX6143AASA33+