MCP1501T-12E/SN

Overview

The MCP1501T-12E/SN is a buffered voltage reference from Microchip Technology, providing a fixed output of 1.25 V with an initial accuracy of ±0.1%. It operates within a supply voltage range of 1.65 V to 5.5 V and features a maximum temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating range. The device draws a typical supply current of 140 μA and can source or sink up to 20 mA. It is housed in an 8-lead SOIC package.

Feature Summary

• Utilizes a low-drift band gap architecture with chopper-based amplifiers to minimize drift and offset errors.
• Capable of sourcing and sinking 20 mA of load current for high-drive applications.
• Includes a dedicated shutdown pin for digital control of power consumption.

Applications

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

Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-lead SOIC package configuration required for your design. Confirm that the T suffix indicates tape-and-reel packaging if automated assembly is planned. Ensure the input voltage meets the minimum requirement of 1.65 V for proper regulation at the 1.25 V output level.

Selection Notes

Select this component when a stable 1.25 V reference is needed with moderate drive capability. The 8-lead SOIC package offers a larger footprint compared to SOT-23 options, which may simplify PCB layout. Consider the 50 ppm/°C temperature coefficient against stricter requirements that might necessitate lower drift alternatives.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family includes various output voltage options ranging from 1.024 V to 5.000 V. While other variants like the CHY package are AEC-Q100 qualified, the standard SN package focuses on general industrial and commercial precision applications.

Replacement Considerations

Direct substitutes include other MCP1501 variants with different output voltages (e.g., MCP1501-25E/SN) if the voltage level can be adjusted. For automotive qualification, consider the MCP1501T-12E/CHYVAO which holds AEC-Q100 certification.