16-Bit Digital I2C Temperature Sensor
Data Sheet
±0.25°C Accurate, 16-Bit Digital I2C Temperature Sensor ADT7420
FEATURES
High performance Temperature accur...
Description
Data Sheet
±0.25°C Accurate, 16-Bit Digital I2C Temperature Sensor ADT7420
FEATURES
High performance Temperature accuracy ±0.20°C from −10°C to +85°C at 3.0 V ±0.25°C from −20°C to +105°C from 2.7 V to 3.3 V 16-bit resolution: 0.0078°C
Ultralow temperature drift: 0.0073°C NIST traceable or equivalent Fast first temperature conversion on power-up of 6 ms
Easy implementation No temperature calibration/correction required by user No linearity correction required
Low power Power-saving 1 sample per second (SPS) mode 700 µW typical at 3.3 V in normal mode 7 µW typical at 3.3 V in shutdown mode
Wide operating ranges Temperature range: −40°C to +150°C Voltage range: 2.7 V to 5.5 V
Programmable interrupts Critical overtemperature interrupt Overtemperature/undertemperature interrupt
I2C-compatible interface 16-lead, 4 mm × 4 mm LFCSP RoHS-compliant package
APPLICATIONS
RTD and thermistor replacement Thermocouple cold junction compensation Medical equipment Industrial control and test Food transportation and storage Environmental monitoring and HVAC Laser diode temperature control
GENERAL DESCRIPTION
The ADT7420 is a high accuracy digital temperature sensor offering breakthrough performance over a wide industrial range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit ADC to monitor and digitize the temperature to 0.0078°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution ...
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