MCP1501T-10E/SN

Overview

The MCP1501T-10E/SN is a buffered voltage reference from Microchip Technology, providing a fixed output of 1.024 V with an initial accuracy of ±0.1%. It operates within a supply voltage range of 1.65 V to 5.5 V and maintains a maximum temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating range. The device features a typical operating current of 140 μA and can source or sink up to 20 mA of load current. It is housed in an 8-lead SOIC package.

Feature Summary

• Capable of sourcing and sinking 20 mA of current for high-drive applications
• Utilizes chopper-based amplifiers to minimize drift and offset errors
• Includes a dedicated shutdown pin for low-power management
• Features separate feedback and output pins to compensate for PCB trace resistance

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converters
• Industrial control systems
• Medical equipment
• Battery-powered devices

Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the 8-lead SOIC package as specified in the datasheet. Confirm the '-10' designation matches the required 1.024 V output voltage. Ensure the 'E' suffix aligns with the industrial temperature range requirements (-40°C to +125°C). Cross-reference the specific revision level of the datasheet DS20005474G for any recent design changes.

Selection Notes

Select this component when a stable 1.024 V reference with significant drive capability is needed. The 8-lead SOIC package offers distinct feedback and output pins, allowing designers to route these separately to eliminate IR-drop errors caused by PCB trace impedance. This feature is particularly beneficial for high-current loads where trace resistance might otherwise degrade reference accuracy.

Part Context

This part belongs to the MCP1501 family of buffered voltage references. Unlike the MCP1502, which offers higher precision, the MCP1501 focuses on robust drive capability and low noise through chopper stabilization. The 'T' suffix indicates tape-and-reel packaging, while 'SN' specifies the surface-mount SOIC-8 footprint.

Replacement Considerations

MCP1501-10E/SN (Tube packaging variant)

FAQ

How does the MCP1501 handle PCB trace resistance?

The SOIC package includes separate OUT and FEEDBACK pins. By routing the FEEDBACK pin close to the load, the device compensates for voltage drops across the PCB traces between the chip and the application circuit.

What is the purpose of the SHDN pin?

The SHDN pin is a digital input that places the device into a low-power shutdown state when driven low. The device must be fully powered up before this pin can be effectively used.