ADT7320 / ADT7420 Temperature Sensors

Accurate, 16-bit digital SPI and I²C temperature sensors from Analog Devices

Image of Analog Devices' ADT7320 / ADT7420 Temperature SensorsThe Analog Devices ADT7320 and ADT7420 are high-accuracy digital temperature sensors offering breakthrough performance over a wide industrial temperature range, housed in a 4 mm × 4 mm LFCSP package. The devices contain an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0078°C. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7x20 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7x20 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7x20 is rated for operation over the -40°C to +150°C temperature range.

Applications
  • RTD and thermistor replacement
  • Thermocouple cold junction compensation
  • Medical equipment
  • Industrial controls and test
  • Food transportation and storage
  • Environmental monitoring and HVAC
  • Laser diode temperature controls

ADT7320 and ADT7420

ImageManufacturer Part NumberDescriptionAvailable Quantity
ADT7420UCPZ-R2 datasheet linkSENSOR TEMPERATURE I2C 16LFCSPADT7420UCPZ-R2SENSOR TEMPERATURE I2C 16LFCSP1915 - Immediate
ADT7420UCPZ-R2 product page link
ADT7320UCPZ-R2 datasheet linkSENSOR TEMPERATURE SPI 16LFCSPADT7320UCPZ-R2SENSOR TEMPERATURE SPI 16LFCSP212 - Immediate
1500 - Factory Stock
ADT7320UCPZ-R2 product page link
EVAL-ADT7X20EBZ datasheet linkBOARD EVALUATION ADT7X20EVAL-ADT7X20EBZBOARD EVALUATION ADT7X208 - Immediate
35 - Factory Stock
EVAL-ADT7X20EBZ product page link
Published: 2013-07-02