ADT7316 ±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 12-Bit DAC

The ADT7316/ADT7317/ADT7318 incorporate a power-on-reset circuit that ensures the DAC output powers up to 0 V and remains there until a valid write takes place. The ADT7316/ADT7317/ADT7318 wide supply voltage range, low supply current, and SPI-/I2C-compatible interface make them ideal for a variety of applications, including personal computers, office equipment, and domestic appliances. Applications Portable battery-powered instruments Personal computers Telecommunications systems Electronic test equipment Domestic appliances Process control

The ADT7316/ADT7317/ADT7318 combine a 10-bit temperature-to-digital converter and a quad 12-/10-/8-bit DAC, respectively, in a 16-lead QSOP. 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/ ADT7317/ADT7318 operate 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 7 μs typically. The ADT7316/ ADT7317/ADT7318 provide two serial inter-face 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.

Applications

Portable battery-powered instruments
Personal computers
Telecommunications systems
Electronic test equipment
Domestic appliances
Process control

Features and Benefits

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 sensor accuracy of ±0.5°C Supply range: 2.7 V to 5.5 V

Temperature range: −40°C to +120°C
DAC output range: 0 V to 2 VREF
Power-down current : <10 μA
Internal 2.28 VREF option
Double-buffered input logic
Buffered/unbuffered reference input option

Analog to Digital Converters

Integrated Temperature Sensors

Sensors

Temperature Sensor & Control Devices

Data Sheets

Document	note
ADT7316/ADT7317/AD7318: 0.5C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs Data Sheet (Rev. B)	PDF 3446 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADT7316ARQZ-REEL7 Production	16 ld QSOP	REEL 1000	-40 to 120C	0	4.54	Y

ADT7316/ADT7317/AD7318: 0.5C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs Data Sheet (Rev. B) adt7316