The ADT7420UCPZ-R2 is a high accuracy Digital Temperature Sensor offering breakthrough performance over a wide industrial range, with 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 user programmable mode that can be changed through the serial interface. 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. 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.
- High performance temperature accuracy ±0.20°C from -10 to +85°C at 3V
- High performance temperature accuracy ±0.25°C from -20 to +105°C from 2.7 to 3.3V
- 0.0078°C 16-bit Resolution
- 0.0073°C Ultra-low temperature drift
- NIST traceable or equivalent
- Fast first temperature conversion on power-up of 6ms
- Easy implementation
- No temperature calibration/correction required by user
- No linearity correction required
- Low power power-saving 1 sample per second (SPS) mode
- Low power 700μW typical at 3.3V in normal mode
- Low power 7μW typical at 3.3V in shutdown mode
- Programmable interrupts critical over-temperature interrupt
- Programmable over-temperature/under-temperature interrupt
传感与仪器, 自动化与过程控制, HVAC, 医用, 测试与测量, 工业, 热管理
