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FEATURES 10-Bit Temperature-to-Digital Converter –55؇C to +125؇C Operating Temperature Range ؎2؇C Accuracy SPI- and DSP-Compatible Serial Interface Shutdown Mode Space-Saving SOT-23 Package
APPLICATIONS Hard Disk Drives Personal Computers Electronic Test Equipment Office Equipment Domestic Appliances Process Control
10-Bit Digital Temperature Sensor in 6-Lead SOT-23
AD7814
FUNCTIONAL BLOCK DIAGRAM
GND
BAND GAP TEMPERATURE
SENSOR
AD7814
10-BIT ANALOG/DIGITAL
CONVERTER
TEMPERATURE VALUE
REGISTER
SERIAL BUS
INTERFACE
VDD
CS SCLK DIN DOUT
GENERAL DESCRIPTION The AD7814 is a complete temperature monitoring system in a SOT-23 package or 8-lead MSOP package. It contains a band gap temperature sensor and 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C.
The AD7814 has a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is compatible with SPI®, QSPI™, and MICROWIRE™ protocol, and is also compat.