MCP1501-25E/SN

Overview

The MCP1501-25E/SN is a buffered voltage reference with a fixed output of 2.5 V and an initial accuracy of ±0.1%. It operates within an input voltage range of 2.7 V to 5.5 V and provides a maximum load current of ±20 mA. The device features a typical operating current of 140 μA, a maximum temperature coefficient of 50 ppm/°C, and line regulation of 50 ppm/V. It is housed in an 8-lead SOIC package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Utilizes a chopper-based amplifier architecture to minimize drift and offset errors.
• Features a dedicated shutdown pin for active low digital control of the output state.
• Includes separate OUT and FEEDBACK pins on the SOIC package to mitigate PCB trace impedance effects.

Applications

• Precision data acquisition systems
• High-resolution data converters
• Medical equipment applications

Procurement Notes

Verify that the specific part number suffix matches the required package type and temperature grade. Confirm compliance with RoHS and REACH directives as specified in the manufacturer documentation. Ensure proper handling procedures are followed due to moisture sensitivity classification. Cross-reference the datasheet revision to confirm all electrical characteristics align with design requirements.

Selection Notes

Select this component when a stable 2.5 V reference with high precision is required. Consider the 20 mA drive capability for direct interfacing with ADCs or DACs without external buffering. Evaluate the thermal resistance and layout constraints for optimal performance in high-current scenarios. Verify input voltage compatibility with the system power supply rails.

Part Context

This device belongs to the MCP1501 family of high-precision buffered voltage references manufactured by Microchip Technology. The family includes multiple voltage variants ranging from 1.024 V to 5.0 V. The MCP1501 series is designed for applications requiring low noise and high stability across wide temperature ranges.

Replacement Considerations

MCP1501-25E/SNTR

FAQ

How does the MCP1501-25E/SN handle IR-drop effects?

The SOIC package includes separate OUT and FEEDBACK pins. By routing these pins separately and connecting them near the point of load, the device can compensate for voltage drops caused by PCB trace resistance.

What is the function of the SHDN pin?

The SHDN pin is a digital input that places the device into a shutdown state when held low. The device must be fully powered up before this feature can be utilized effectively.