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ADT7310:  ±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

Product Details


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The ADT7310 is a high accuracy digital temperature sensor in a narrow SOIC package. It contains a band gap temperature reference and a 13-bit ADC to monitor and digitize the temperature to a 0.0625°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625 °C). This can be changed to 16 bits (0.0078 °C) by setting Bit 7 in the configuration register (Register Address 0x01).

The ADT7310 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7310 has a shutdown mode that powers down the device and offers a shutdown current of typically 2 μA. The ADT7310 is rated for operation over the −55°C to +150°C temperature range.

The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The default critical temperature limit is 147°C. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT and CT pins can operate in either comparator or interrupt mode.

Applications

  • Medical equipment
  • Environmental control systems
  • Computer thermal monitoring
  • Thermal protection
  • Industrial process control
  • Power system monitors
  • Hand-held applications

FEATURES and BENEFITS

  • High performance:
    Temperature accuracy
    ±0.5°C from −40°C to +105°C
    (2.7 V to 3.6 V)
    ±0.4°C from −40°C to +105°C
    (3.0 V)
    16-bit temperature resolution: 0.0078°C
    Fast first temperature conversion on power-up of 6 ms
  • Low power:
    Power saving 1 sample per second (SPS) mode
    700 μW typical at 3.3 V in normal mode
    7 μW typical at 3.3 V in shutdown mode
  • Easy implementation:
    No temperature calibration/correction required by user
    No linearity correction required
  • Wide operating ranges:
    Temperature range: −55°C to
    Voltage range: 2.7 V to 5.5 V
  • Programmable interrupts:
    Critical overtemperature interrupt
    Overtemperature/undertemperature interrupt
  • SPI-compatible interface
  • 8-lead narrow SOIC RoHS-compliant package

Functional Block Diagram for ADT7310

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Price, packaging, availability

ADT7310 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADT7310TRZ Status: Production 8 ld SOIC 8 Mil Tube, 98 $1.61 $1.32 Y  Material Info PCN Purchase Sample
ADT7310TRZ-REEL Status: Production 8 ld SOIC 8 Mil Reel, 2500 - $1.32 Y  Material Info PCN Purchase
ADT7310TRZ-REEL7 Status: Production 8 ld SOIC 8 Mil Reel, 1000 - $1.32 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADT7310, ADT7311, ADT7312 and ADT7410 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADT7X10EBZ Status: Production Evaluation Board $59.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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