The ADT7320UCPZ-R2 is a Digital SPI Temperature Sensor that offers breakthrough performance over a wide industrial temperature range. It contains an internal band gap reference, a temperature sensor and a 16-bit analogue-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 an user programmable mode that can be changed through the serial interface. Operating at 3.3V, the average supply current is typically 210µA. The ADT7320UCPZ-R2 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0µA at 3.3V. 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 either comparator or interrupt mode.
Feature
- High performance
- 16-bit Temperature resolution (0.0078°C)
- Ultralow temperature drift (0.0073°C)
- NIST traceable or equivalent
- Easy implementation
- Low power
- 700µW Typical power (at 3.3V in normal mode)
- 7µW Typical power (at 3.3V in shutdown mode)
- Critical over-temperature interrupt
- Over-temperature/under-temperature interrupt
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
(Picture: Pinout)
