ADT7320/ADT7420 Digital Temperature Sensors

Analog Devices Inc. ADT7320/ADT7420 Digital Temperature Sensors are ±0.25°C accurate SPI/I²C digital temperature sensors that provide excellent performance over a -40°C to +150°C temperature range. The ADT7320/ADT7420 Digital Sensors include an internal band gap reference, a temperature sensor, and a 16-bit ADC to monitor and digitize the temperature to a resolution of 0.0078°C. Using the SPI/I²C serial interface, designers can change the default ADC resolution set at 13 bits (0.0625°C) to meet their application requirements. Operating at 3.3V, the ADT7320/ADT7420 sensors are guaranteed to operate over the 2.7V to 5.5V supply voltage range with a typical supply current of 210μA. The ADT7320/ADT7420 sensors include a shutdown mode that powers down the device and delivers a typical shutdown current of 2μA at 3.3V. The Analog Devices ADT7320/ADT7420's high accuracy makes the sensors ideal for instrumentation, industrial, and medical applications.