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 is a user programmable mode that can be changed through the serial interface. The ADT7420 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 ADT7420 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7420 is rated for operation over the −40°C to +150°C temperature range. Pin A0 and Pin A1 are available for address selection, giving the ADT7420 four possible I2C addresses. The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in comparator and interrupt event modes. Product Highlights * Ease of use, no calibration or correction required by the user. * Low power consumption. * Excellent long-term stability and reliability. * High accuracy for industrial, instrumentation, and medical applications. * Packaged in a 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 * 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 https://elecena.pl/product/3853976/0-25-c-accurate-16-bit-digital-ic-temperature-sensor 2012-12-21 https://elecena.pl/product/3853976/0-25-c-accurate-16-bit-digital-ic-temperature-sensor 2018-03-28 https://elecena.pl/product/3853976/0-25-c-accurate-16-bit-digital-ic-temperature-sensor 2025-01-17