ADT7317 ±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 10-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.

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
Features and Benefits
  • ADT7316—four 12-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
Sensors
Data Sheets
Documentnote
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 NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADT7411ARQ Production16 ld QSOPOTH 98-40 to 120C00N
ADT7411ARQ-REEL7 Last Time Buy16 ld QSOPREEL 1000-40 to 120C00N
ADT7411ARQZ Production16 ld QSOPOTH 98-40 to 120C2.552.22Y
ADT7411ARQZ-REEL Production16 ld QSOPREEL 2500-40 to 120C02.22Y
ADT7411ARQZ-REEL7 Production16 ld QSOPREEL 1000-40 to 120C02.22Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-ADT7411EBZEvaluation Board99Y
ADT7316/ADT7317/AD7318: 0.5C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs Data Sheet (Rev. B) adt7316