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ADT7318 (sensor)

Added by ALMICO on 19 aug 2003


Description: 
The ADT7316/ADT7317/ADT7318 combines a 10-bit temperature-to-digital converter and a quad 12-/10-/8-Bit DAC, respectively, in a 16-lead QSOP package. This includes a band gap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25C. The ADT7316/ADT7317/ADT7318 operates from a single 2.7 V to 5.5 V supply. The output voltage of the DAC ranges from 0 V to 2 VREF, with an output voltage settling time of typ 7 ms. The ADT7316/ADT7317/ADT7318 provides two serial interface options, a 4-wire serial interface that is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards and a 2-wire SMBus/I2C interface. They feature a standby mode that is controlled via the serial interface. The reference for the four DACs is derived either internally or from two reference pins (one per DAC pair). The outputs of all DACs may be updated simultaneously using the software LDAC function or external LDAC pin. The ADT7316/ pin. The ADT7316/ ADT7317/ADT7318 incorporates a power-on-reset circuit that ensures the DAC output powers up to 0 V and it remains there until a valid write takes place. The ADT7316/ADT7317/ADT7318's wide supply voltage range, low supply current, and SPI/I2C compatible interface make it ideal for a variety of applications, including personal computers, offi ce equipment, and domestic appliances.


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