ADT7317:  ±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 10-Bit DAC

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 ...More

ADT7317:  ±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 10-Bit DAC

Product Description

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
  • *Protected by the following U.S. patent numbers: 5,764,174; 5,867,012;6,097,239; 6,169,442. Other patents pending.

    Data Sheet, Rev. B, 1/07

    Features

    • 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

    Diagrams

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    • Symbols and Footprints
    ADT7317 Diagram
    Functional Block Diagram for ADT7317

    Specifications

    Output Type Digital
    Sensor Output DSP Serial,I²C ®,MICROWIRE (TM),QSPI (TM),SMBus,SPI (TM)
    Temp Res(°C/LSB) 0.25°C/LSB
    Supply Voltage Range +2.7V to +5.5V
    Temp Range(s) -40 to +120

    Explore Other Products

    Part# Temp Res(°C/LSB) 25°C Temp Error (Deg C) Resolution (Bits) # Chan DAC Outputs Interface Temp Range(s) Supply Voltage Range Product Description Price* (1000-4999)
    ADT7316 0.25 ±0.5 10 3 12-Bit x 4 I2C, I2C/SPI, Serial, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor With Quad Voltage-Output 12-Bit DAC $6.38
    ADT7317 0.25 ±0.5 10 3 10-Bit x 4 I2C, I2C/SPI, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor w/ Quad 10-Bit Voltage Output DAC $3.47
    ADT7318 0.25 +0.5 10 3 8-Bit x 4 I2C, I2C/SPI, Serial, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor & Quad Voltage Output 8-Bit DAC $2.20
    TMP03 0.3 ±3 16 0 --- PWM -40 to +100 +4.5V to +7V Serial PWM-Output Temperature Sensor w/ Open-Collector Output $3.23
    TMP04 0.3 ±3 16 0 --- PWM -40 to +100 +4.5V to +7V Serial PWM-Output Temperature Sensor w/ CMOS/TTL Output $3.23
    AD7814 0.25 n/a 10 0 --- Serial, SPI -55 to +125 +2.7V to +5.5V 10-Bit Digital Temperature Sensor in 6-Lead SOT-23 $0.99
    AD7414 0.25 n/a 10 0 --- I2C, Serial -40 to +125 +2.7V to +5.5V SMBus/I2C, 10-Bit Digital Temperature Sensor in 6-Pin SOT w/ SMBus Alert and Over-Temperature Pin $1.03
    AD7415 0.25 ±2 10 0 --- I2C, Serial -40 to +125 +2.7V to +5.5V SMBus/I2C, 10-Bit Digital Temperature Sensor in 5-Pin SOT $1.03
    AD7416 0.25 n/a 10 0 --- Switch (Off/On) -40 to +125 +2.7V to +5.5V 10-Bit Temperature-to-Digital Converter, -40°C to +125°C, ±2°C Accuracy $0.99
    AD7314 0.25 ±1 10 0 --- Serial, SPI -35 to +85 +2.65V to +5.5V Low Voltage, 10-Bit Digital Temperature Sensor in 8-Lead µSOP $0.65
    AD7818 0.25 ±1 10 1 --- Switch (Off/On) -40 to +85 +2.7V to +5.5V 9 µs, 10-Bit ADC w/ On-Chip Temperature Sensor & Over-Temperature Output $2.31
    AD7418 0.25 ±1 10 2 --- I2C, Serial, Switch (Off/On) -40 to +125 +2.7V to +5.5V 10-Bit ADC, Programmable Hi-Low Temp Limits w/ Over-Temp Alert, , Auto Pwr Dwn @ EOC $2.31
    AD7817 0.25 ±1 10 4 --- Switch (Off/On) -40 to +85 +2.7V to +5.5V 4-Channel, 9 µs, 10-Bit ADC with On-Chip Temperature Sensor & Over-Temperature Flag $3.25
    AD7417 0.25 ±1 10 5 --- I2C, Serial, Switch (Off/On) -40 to +125 +2.7V to +5.5V 4-Channel, 10-Bit ADC w/ on-Chip Temperature Sensor, Programmable Setpoints, and Overtemp Flag Out $2.95
    ADT7516 0.25 n/a 10 7 12-Bit x 4 I2C/SPI, Serial, SPI -40 to +120 +2.7V to +5.5V SPI/I2C Compatible Temperature Sensor w/10-Bit-4-Ch ADC & Quad 12-Bit Voltage DAC Control Outputs $7.65
    ADT7411 0.25 +0.5 10 11 n/a I2C, I2C/SPI, Serial, SPI -40 to +120 +2.7V to +5.5V SPI®-/I2C®-Compatible, 10-Bit ADC w/ Local & Remote Temp Msmt, 8 GP Analog Inputs, and VDD monitor $2.19
    ADT6501 0.125 ±4 11 n/a - Switch (Off/On) -55 to +125 +2.7V to +5.5V 2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/ active-low open-drain Output, +35 to +115 DegC $0.49
    ADT6502 0.125 ±4 11 n/a --- Switch (Off/On) -55 to +125 +2.7V to +5.5V 2.7V/5.5 V, Micropower Temperature Switch in SOT-23 w/Active-High Push-pull Output, +35 to +115 DegC -
    ADT6503 0.0625 n/a 11 n/a --- Switch (Off/On) -55 to +125 +2.7V to +5.5V 2.7V/5.5V, Micropower Temperature Switch in SOT-23 w/Open-drain Output, -45 to +15 Deg C $0.49
    ADT6504 0.0625 n/a 12 n/a --- Switch (Off/On) -55 to +125 +2.7V to +5.5V 2.7 V to 5.5 V, Micropower Temperature Switch in SOT-23 w/Push-pull Output, -45 to +15 Deg C $0.49
    ADT7408 0.0625 ±1 12 0 --- Switch (Off/On) -20 to +125 +3V to +3.6V ± 2 Degree C Accurate, 12-Bit Digital Temperature Sensor $0.86
    ADT75 0.0625 n/a 12 0 --- Switch (Off/On) -55 to +125 +3V to +5.5V ±1 Deg C Accuracy, 12-Bit Digital Temperature Sensor $0.65
    ADT7301 0.03125 n/a 13 0 --- Serial, SPI -40 to +150 +2.7V to +5.5V 13-Bit, ±1ºC Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23 and 8-Lead MSOP $1.20
    ADT7302 0.03125 n/a 13 0 --- Serial, SPI -40 to +125 +2.7V to +5.25V ±2°C Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23 $0.62
    TMP06 0.025 ±0.5 12 0 --- PWM -40 to +150 +2.7V to +5.5V 0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ Open Drain Output $0.65
    TMP01 n/a ±0.5 n/a 0 --- Analog, Switch (Off/On) -55 to +125 +4.5V to +13.2V Low Power, Programmable Temperature Sensor/ Controller w/ upper/lower setpoints $2.64
    TMP05 0.025 ±0.5 12 0 --- PWM -40 to +150 +2.7V to +5.5V 0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ CMOS/TTL Output $0.65
    AD22105 n/a ±3 n/a 0 --- Switch (Off/On) -40 to +125 +2.7V to 7V Low Voltage, Resistor Programmable Thermostatic Switch $1.20
    Sorted by Temperature Resolution (Descending) and # of External ADC Input Channels (Ascending)

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    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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