MV1403

Overview

The MV1403 is a precision band-gap voltage reference designed for critical instrumentation and D/A converter applications. It provides a stable output voltage of 2.5 V with a tolerance of +/-25 mV. The device operates within an input voltage range of 4.5 V to 40 V and delivers an output current of 10 mA. Typical quiescent current is 1.2 mA, and the temperature coefficient is 10 ppm/°C. It is available in standard 8-pin DIP and SOIC packages.

Feature Summary

• Precision band-gap design suitable for high-accuracy applications
• Capable of driving D/A converters up to 12 bits accuracy
• Guaranteed temperature drift specification for stability

Applications

• Critical instrumentation systems
• Digital-to-Analog Converter (D/A) references
• Power supply reference circuits

Procurement Notes

Verify the specific suffix code on the component marking to confirm package type, as the base part number may correspond to multiple physical packages such as DIP or SOIC. Confirm RoHS compliance status separately, as historical data indicates potential non-compliance for certain variants. Ensure the ordering information matches the required temperature range and tolerance specifications for your design.

Selection Notes

Select this component when a stable 2.5 V reference is required for analog signal processing. Consider the 10 mA output current capability for driving low-impedance loads without external buffering. Evaluate the 10 ppm/°C temperature coefficient against system thermal requirements. Compare against equivalent parts like the AD580 if pin compatibility is a constraint.

Part Context

This component belongs to the MC1403 family of voltage references manufactured by onsemi. These devices are legacy precision references often used in industrial control and measurement equipment. The family is known for providing reliable, low-noise reference voltages for analog circuits requiring long-term stability and accuracy.

Replacement Considerations

The datasheet explicitly states that this device is equivalent to the AD580. Designers should verify pinout compatibility and electrical parameter overlaps before substituting other generic 2.5 V references.