GENERAL DESCRIPTION
The ADT7316/7317/7318 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 bandgap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C. The ADT7316/17/18 operates from a single +2.7V to +5.5V supply. The output voltage of the DAC ranges from 0 V to 2VREF , with an output voltage settling time of typ 7 msec. The ADT7316/17/18 provides two serial interface options, a four-wire serial interface which is compatible with SPITM, QSPITM, MICROWIRETM and DSP interface standards; and a two-wire I2C interface. It features a standby mode that is controlled via the serial interface.

FEATURES
    ADT7316 - Four 12-Bit DACs
    ADT7317 - Four 10-Bit DACs
    ADT7318 - Four 8-Bit DACs
    Buffered Voltage Output
    Guaranteed Monotonic By Design Over All Codes
    10-Bit Temperature to Digital Converter
    Temperature range: -40°C to +125°C
    Temperature Sensor Accuracy of ±0.5°C
    Supply Range : + 2.7 V to + 5.5 V
    DAC Output Range: 0 - 2VREF
    Power-Down Current 1µA
    Internal 2.25 VRef Option
    Double-Buffered Input Logic
    Buffered / Unbuffered Reference Input Option
    Power-on Reset to Zero Volts
    Simultaneous Update of Outputs (LDAC Function)
    On-Chip Rail-to-Rail Output Buffer Amplifier
    I2C®, SPITM, QSPITM, MICROWIRETM and DSP-Compatible 4-wire Serial Interface
    16-Lead QSOP Package

APPLICATIONS
    Portable Battery Powered Instruments
    Personal Computers
    Telecommunications Systems
    Electronic Test Equipment
    Domestic Appliances
    Process Control