ADI ADT7320UCPZ-RL7

The ADT7320 is a high accuracy digital temperature sensor that offers breakthrough performance over a wide industrial temperature range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal 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℃. The ADC resolution, by default, is set to 13 bits (0.0625℃). The ADC resolution is a user programmable mode that can be changed through the serial interface. The ADT7320 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 ADT7320 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7320 is rated for operation over the -40℃ to +150℃ temperature range. 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.

• High performance
• Temperature accuracy ±0.20℃ from -10℃ to +85℃ at 3.0 V
• Temperature accuracy ±0.25℃ from -20℃ to +105℃ at 2.7 V to 3.3 V
• 16-bit temperature resolution: 0.0078℃
• Ultralow temperature drift: 0.0073℃
• 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℃ to +150℃
• Voltage range: 2.7 V to 5.3 V
• Programmable interrupts
• Critical overtemperature interrupt
• Overtemperature/undertemperature interrupt
• SPI-compatible interface
• 16-lead, RoHS-compliant, 4 mm × 4 mm LFCSP package

• 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