Microchip MCP9701A Linear Temperature Sensor Thermistor IC, TO92 Package

The Microchip MCP9701A-E/TO is a Low-power Linear Active Thermistor™ integrated circuit, a precise sensor where the output voltage varies linearly with the measured temperature. This tiny analogue temperature sensor can accurately measure a wide range from -40°C to +125°C, making it suitable for diverse environments. Its output is calibrated to a slope of 19.53 mV/°C with a DC offset of 400 mV, a clever design that enables the reading of sub-zero temperatures without requiring a negative power supply.

This device stands out for its excellent accuracy and low power consumption. It offers ±2°C accuracy from 0°C to +70°C and -2°C/+4°C accuracy across its full -40°C to +125°C range. With a very low operating current of just 12 µA and no need for external components, it simplifies design and conserves energy. The sensor also features a wide operating voltage range and is optimised to drive large capacitive loads effectively.

Key Features & Applications

Ideal for a multitude of applications, the MCP9701A is commonly used in computers and computer peripherals, consumer electronics, portable devices, and across commercial, industrial, and automotive sectors. Its robust design and adherence to the AEC-Q100 automotive qualification standard underscore its reliability for demanding uses. Please note, this is an ESD-sensitive device; proper handling precautions are required during installation.

Technical Specifications Overview

• Sensor Output Type: Analogue Voltage
• Supply Voltage Range: 3.1V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Package / Case Style: TO-92 (3-Pin)
• Automotive Qualification: AEC-Q100
• Dimensions: 33mm (Width) x 43mm (Height) x 15mm (Depth)
• Weight: 0.2 grams

This compact and highly efficient temperature sensor from Microchip provides a reliable and straightforward solution for accurate thermal