MCP1501-10E/SN

Overview

The MCP1501-10E/SN is a buffered voltage reference with a fixed output of 1.024 V and an initial accuracy of ±0.1%. It operates within a supply voltage range of 1.65 V to 5.5 V, drawing a typical current of 140 μA. The device provides a maximum load current of ±20 mA and maintains a temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating range. Line regulation is specified at 50 ppm/V maximum.

Feature Summary

• Features a chopper-based amplifier architecture that reduces drift to zero and improves long-term stability.
• Includes a dedicated shutdown pin for active low digital control of power consumption.
• Provides separate OUT and FEEDBACK pins on the SOIC package to minimize IR-drop effects from PCB routing.
• Capable of sourcing and sinking up to 20 mA of load current.

Applications

• Precision data acquisition systems
• High-resolution data converters
• Medical equipment applications
• Industrial controls
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-Lead SOIC package configuration. Confirm the device meets AEC-Q100 qualification requirements if automotive compliance is necessary, noting that this qualification is explicitly stated for the 6-Lead SOT-23 package in official documentation. Ensure input voltage stays above the minimum threshold of 1.65 V for proper operation.

Selection Notes

Select this component when a stable 1.024 V reference is required with high precision. The SOIC-8 package allows external feedback routing to compensate for trace resistance. Consider the 140 μA quiescent current for battery life calculations. Verify that the 50 ppm/°C temperature coefficient meets the thermal stability requirements of the target application environment.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references manufactured by Microchip Technology. The family includes ten voltage variants ranging from 1.024 V to 5.000 V. While other packages like SOT-23 and WDFN are available, the SN suffix specifically designates the standard 8-Lead Small Outline Integrated Circuit (SOIC) form factor.

Replacement Considerations

MCP1501-10E/MF: Alternative 8-Lead MSOP package variant.

FAQ

How does the MCP1501-10E/SN handle output noise?

The device utilizes a chopper-based amplifier architecture to effectively reduce drift and offset, ensuring excellent low-noise operation suitable for sensitive analog circuits.

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

The FEEDBACK pin connects to the buffer amplifier. Routing it separately from the OUT pin near the point of load helps eliminate voltage drops caused by PCB trace impedance or IR-drop under high-current loads.