The ADT7320UCPZ-RL7 is a high accuracy digital temperature sensor that offers breakthrough performance over a wide industrial temperaturerange, housed in a 4 mm × 4 mm LFCSP package. It contains aninternal 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 ADT7320UCPZ-RL7 is guaranteed to operate over supply voltages from2.7 V to 5.5 V. Operating at 3.3 V, the average supply current istypically 210 μA. The ADT7320UCPZ-RL7 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7320UCPZ-RL7 is rated for operation over the −40°C to +150°C temperature range.
The CT pin is an open-drain output that becomes active when thetemperature 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 pinand CT pin can operate in either comparator or interrupt mode.
Product Highlights
Feature
- High PerformanceTemperature accuracy±0.20°C from −10°C to +85°C±0.25°C from −20°C to +105°C at 3.3 V16-bit resolution: 0.0078°CUltralow temperature drift: 0.0073°C
- Easy ImplementationNo temperature calibration/correction required by userNo linearity correction required
- Low PowerPower saving 1 sample per second (SPS) mode700 μW typical at 3.3 V in normal mode7 μW typical at 3.3 V in shutdown mode
- Wide operating rangesOperating temperature from −40°C to +150°CVoltage range: 2.7 V to 5.5 V
- Programmable interruptsCritical overtemperature indicatorOvertemperature/undertemperature interrupt
- SPI-compatible interface
- 16-lead, RoHS-compliant, 4 mm × 4 mm LFCSP package
- See data sheet for additional features
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)
