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ADT7422

Analog Devices
Part Number ADT7422
Manufacturer Analog Devices
Description Temperature Sensor
Published Aug 13, 2023
Detailed Description Data Sheet ±0.1°C Accuracy, 16-Bit, Digital I2C Temperature Sensor for VSM Applications ADT7422 FEATURES Accuracy meet...
Datasheet PDF File ADT7422 PDF File

ADT7422
ADT7422

Overview
Data Sheet ±0.
1°C Accuracy, 16-Bit, Digital I2C Temperature Sensor for VSM Applications ADT7422 FEATURES Accuracy meets clinical thermometry specification of the ASTM E1112 when soldered onto the final PCB ±0.
1°C from 25°C to 50°C at 3.
0 V ±0.
25°C from −20°C to +105°C at 2.
7 V to 3.
3 V Ultralow temperature drift: 0.
0073°C National Institute of Standards and Technology (NIST) traceable or equivalent Fast first temperature conversion at power-up of 6 ms Simple implementation No temperature calibration or correction required No linearity correction required Low power 140 µW typical at 3.
0 V in 1 SPS mode 6 µW typical at 3.
0 V in shutdown mode Programmable interrupts Critical overtemperature interrupt Overtemperature and undertemperature interrupt I2C-compatible interface 16-lead, 4 mm × 4 mm, RoHS compliant LFCSP APPLICATIONS Vital signs monitoring (VSM) Medical equipment Resistance temperature detector (RTD) and thermistor replacement Food transportation and storage Thermocouple cold junction compensation Environmental monitoring and heating, ventilation, and air conditioning (HVAC) Laser diode temperature control GENERAL DESCRIPTION The ADT7422 is a high accuracy, digital I2C temperature sensor designed to meet the clinical thermometry specification of the ASTM E1112 standards when soldered onto the final printed circuit board (PCB).
The ADT7422 contains an internal band gap reference, a temperature sensor, and a precision analog-to-digital converter (ADC).
The ADT7422 provides a 16-bit temperature result with a resolution of 0.
0078°C and an accuracy of up to ±0.
1°C across the temperature range of 25°C to 50°C without the need for calibration after the PCB soldering process.
Operating at 3.
0 V, the average supply current is typically 210 μA.
The ADT7422 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.
0 μA at 3.
0 V.
The ADT7422 is rated for operation over the −40°C to +125°C temperature range.
Pin A0 and Pin A1 are avail...


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