MCP1501T-20E/SN

Overview

The MCP1501T-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 maximum temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating range. Packaged in an 8-Lead SOIC, it includes a shutdown pin for power management.

Feature Summary

• Integrated chopper-based amplifier architecture that reduces drift to zero and minimizes temperature-dependent offsets.
• Capable of sourcing and sinking up to 20 mA of output current for driving high-capacitive loads or ADCs.
• Features a dedicated digital shutdown pin to place the device into a low-power state when not in use.

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converters
• Industrial control systems

Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-Lead SOIC package configuration. Confirm the 'T' prefix indicates tape-and-reel packaging rather than tube. Ensure the '-20' designation matches the required 2.048 V output voltage for your circuit design.

Selection Notes

Select this component when a stable 2.048 V reference is needed with moderate drive capability. The 8-Lead SOIC package offers thermal performance suitable for standard surface-mount assembly. Consider the 140 μA quiescent current for battery-powered applications requiring extended operational life.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family utilizes a second-order curvature-compensated bandgap reference. Variants are available with different fixed output voltages ranging from 1.024 V to 5.000 V, packaged in SOT-23, SOIC, and WDFN formats.

Replacement Considerations

MCP1501-20E/SN (Tube version)

FAQ

How does the MCP1501 achieve low noise performance?

It uses a chopper-based amplifier architecture that effectively reduces drift to zero and eliminates chopping frequency artifacts from the output.

What is the function of the FEEDBACK pin on the SOIC package?

The FEEDBACK pin connects to the buffer amplifier feedback loop. On SOIC packages, it should be connected to the OUT pin at the device to ensure accurate output voltage regulation.