MC1403DG

Overview

The MC1403DG is a series voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±1%. The device operates within an input voltage range of 4.5V to 40V and draws a maximum supply current of 1.5mA. It features a temperature coefficient of 40ppm/°C and supports a maximum shunt current of 10mA. The component is housed in an 8-SOIC surface-mount package and functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides a stable, fixed 2.5V reference output suitable for precision analog circuits.
• Features low power consumption with a maximum supply current of 1.5mA.
• Designed for high-voltage operation with an input range extending up to 40V.

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered measurement instrumentation

Procurement Notes

Verify the specific suffix 'DG' corresponds to the SOIC-8 surface-mount package configuration. Confirm that the 0°C to +70°C commercial temperature grade aligns with system requirements, as industrial variants may exist under different part numbers. Ensure the 40ppm/°C temperature coefficient meets the stability needs of the target application design.

Selection Notes

Select this component when a compact surface-mount voltage reference is required for low-power applications. The 2.5V output level is ideal for single-supply systems. Consider the ±1% initial accuracy and 40ppm/°C drift characteristics against the precision demands of the circuit. The 10mA load capability supports moderate current requirements without external buffering.

Part Context

This part belongs to the MC1403 family of three-terminal series voltage references from onsemi. It serves as a fundamental building block for power management and signal conditioning circuits requiring a stable DC voltage baseline. The device complements other logic and linear ICs in mixed-signal designs where precise voltage levels are critical for accurate data conversion.

Replacement Considerations

MC1403DR2G: Identical electrical specifications and functionality, differing only in tape-and-reel packaging instead of tube.

FAQ

What is the maximum input voltage supported by the MC1403DG?

The device supports a maximum series input voltage of 40V.

Does the MC1403DG include internal compensation?

Yes, the MC1403DG is internally compensated for stability.