MC1403BDG

Overview

The MC1403BDG is a precision series voltage reference integrated circuit manufactured by onsemi. It provides a stable 2.5V output with an initial accuracy of ±1%. The device operates within a supply voltage range of 4.5V to 40V and delivers a maximum output current of 10mA. It features a low temperature coefficient of 40ppm/°C, ensuring stability across varying thermal conditions. The component is housed in an 8-pin SOIC surface-mount package and supports operation from 0°C to 70°C.

Feature Summary

• Provides a fixed 2.5V series voltage reference output
• Maintains high precision with ±1% initial accuracy
• Operates over a wide input voltage range up to 40V
• Features low temperature drift for thermal stability

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Calibration equipment requiring stable voltage standards
• Battery-powered instrumentation circuits

Procurement Notes

Verify the specific suffix 'DG' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration and RoHS compliance status. Ensure the supplier documentation explicitly lists the 4.5V minimum operating voltage and 10mA output capability. Cross-reference the part number with the latest obsolescence notices or product change notifications to confirm availability and manufacturing continuity.

Selection Notes

Select this component when a precise 2.5V reference is required for mixed-signal systems. It is suitable for applications demanding low drift and wide input voltage tolerance. Consider the 8-SOIC package dimensions for PCB layout constraints. Evaluate the 10mA current limit against load requirements to ensure adequate drive capability without exceeding specifications.

Part Context

The MC1403BDG belongs to the MC1403 family of series voltage references designed for general-purpose precision applications. This family offers a balance of performance and cost-effectiveness for industrial and commercial electronics. The BDG variant specifically denotes the surface-mount SOIC package option, facilitating automated assembly processes while maintaining the electrical characteristics of the standard MC1403 series.

Replacement Considerations

Public confirmed substitute part numbers are not available.