SG3503DM

Overview

The SG3503DM is a precision series voltage reference integrated circuit manufactured by Microchip Technology. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±1%. The device features a maximum quiescent current of less than 2mA and supports an output current of 10mA. It operates within a temperature range of -25°C to 85°C and exhibits a temperature coefficient of 10 PPM/°C. The component is housed in an 8-SOIC package.

Feature Summary

• Monolithic precision voltage reference generator internally trimmed for high accuracy
• Low quiescent current consumption for efficient power management
• Fixed series output configuration ensuring stable reference voltage

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered instrumentation requiring low power operation

Procurement Notes

Verify the specific suffix designation, as variants such as SG3503DM-TR indicate tape-and-reel packaging while standard designations may imply tube packing. Confirm that the required operating temperature range aligns with the commercial grade specifications documented in the official datasheet. Ensure compatibility with the 8-SOIC footprint during PCB layout review.

Selection Notes

Select this component when a fixed 2.5V reference with ±1% initial accuracy is required. Consider the low 2mA quiescent current for battery-sensitive designs. Verify that the 10mA output capability meets load requirements. The 8-SOIC package size should fit the available board space constraints.

Part Context

This part belongs to the SG3503 series of precision voltage references from Microchip Technology. These devices are designed to provide stable reference voltages for mixed-signal circuits. The series typically includes various output voltage options and package configurations to support diverse industrial and consumer electronics applications.

Replacement Considerations

Check for direct pin-compatible substitutes within the same family, such as the SG3503DM-TR variant which shares identical electrical characteristics but differs in packaging format. Ensure any alternative maintains the 2.5V output and ±1% accuracy specifications.