Analog Devices, Inc. Distributor

ADT7320 / ADT7420 Temperature Sensors


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


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

Digi-Key P/N Manufacturer P/N Packaging Description  
ADT7320UCPZ-R2TR-ND ADT7320UCPZ-R2 Tape & Reel IC SENSR TEMP 16BIT DGTL 16LFCSP Datasheet
ADT7320UCPZ-R2CT-ND Cut Tape
ADT7320UCPZ-R2DKR-ND Digi-Reel®
ADT7420UCPZ-R2TR-ND ADT7420UCPZ-R2 Tape & Reel IC SENSR TEMP 16BIT DGTL 16LFCSP Datasheet
ADT7420UCPZ-R2CT-ND Cut Tape
ADT7420UCPZ-R2DKR-ND Digi-Reel®
EVAL-ADT7X20EBZ-ND EVAL-ADT7X20EBZ - BOARD EVALUATION ADT7X20 Datasheet