MCP1501-20E/SN

Overview

The MCP1501-20E/SN is a buffered voltage reference from Microchip Technology, providing a fixed output of 2.048 V with an initial accuracy of ±0.1%. It operates within an input voltage range of 2.25 V to 5.5 V and supports a maximum load current of ±20 mA. The device features a low typical operating current of 140 μA and maintains a temperature coefficient of 50 ppm/°C across the -40°C to +125°C range. Packaged in an 8-Lead SOIC, it includes a shutdown pin for power management.

Feature Summary

• High precision band gap architecture utilizing chopper-based amplifiers to minimize drift and offset errors.
• Capable of sourcing and sinking up to 20 mA of load current while maintaining regulation.
• Integrated digital shutdown control allows for active low power consumption states.

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converter references
• Industrial control instrumentation

Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-Lead SOIC package configuration. Confirm that the 'E' designation aligns with the required industrial temperature range specifications. Ensure the ordering part number matches the exact 2.048V output variant required for the design.

Selection Notes

Select this component when a stable 2.048V reference with high drive capability is needed. The 8-Lead SOIC package offers distinct OUT and FEEDBACK pins, allowing separate routing to mitigate PCB trace impedance effects. Consider the 140 μA supply current for battery-operated applications requiring extended operational life.

Part Context

This device belongs to the MCP1501 family of high-precision buffered voltage references. The family provides multiple fixed voltage options ranging from 1.024V to 5.000V. While other packages like SOT-23 and WDFN exist, the SOIC variant specifically enables external feedback loop optimization for high-current loads.

Replacement Considerations

Direct substitutes include other MCP1501 variants with different output voltages if the system allows voltage adjustment. For higher precision requirements, consider the MCP1502 series which offers improved performance characteristics.