AD7314

a Low-Voltage, 10-Bit Digital Temperature Sensor in 8-Lead ␮SOIC AD7314 FUNCTIONAL BLOCK DIAGRAM BANDGAP TEMPERATURE SENSOR 10-BIT ANALOG/DIGITAL CONVERTER ID GND TEMPERATURE VALUE REGISTER VDD FEATURES 10-Bit Temperature-to-Digital Converter –35؇C to +85 ؇C Operating Temperature Range ؎2 ؇C Accuracy SPI™- and DSP-Compatible Serial Interface Shutdown Mode Space-Saving ␮ SOIC Package APPLICATIONS Hard Disk Drives Personal Computers Electronic Test Equipment Office Equipment Domestic Appliances Process Control Mobile Phones AD7314 SERIAL BUS INTERFACE CE SCLK SDI SDO GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD7314 is a complete temperature monitoring system in an 8-lead µSOIC package. It contains a bandgap temperature sensor and 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C. The AD7314 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 compatible with DSPs. The part features a standby mode that is controlled via the serial interface. The AD7314’s low supply current and SPI-compatible interface, make it ideal for a variety of applications, including personal computers, office equipment, and domestic appliances. 1. The AD7314 has an on-chip temperature sensor that allows an accurate measurement of the ambient temperature. The measurable temperature range is –35°C to +85°C, with a ± 2°C temperature accuracy. 2. Supply ...