MAX31722 Datasheet | Maxim Integrated

Description The MAX31722/MAX31723 digital thermometers and thermostats with an SPI/3-wire interface provide temperature readings that indicate the device temperature. No additional ponents are required; the devices are truly temperature-to-digital converters. Temperature readings are municated from the device over an SPI interface or a 3-wire serial interface. The choice of interface is selectable by the user. For applications that require greater temperature resolution, the user can adjust the readout resolution from 9 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be detected quickly. The thermostat has a dedicated open-drain output (TOUT). Two thermostat operating modes, parator and interrupt, control thermostat operation based on user-defined nonvolatile trip points (THIGH and TLOW). Both devices feature a 1.7V to 3.7V supply rail. Applications Networking Equipment Cellular Base Stations Industrial Equipment Any Thermally Sensitive Systems Functional Diagram Benefits and Features - - Maximize System Accuracy in Broad Range of Thermal Management Applications - Measures Temperature from -55°C to +125°C - MAX31722 Thermometer Accuracy of ±2°C - MAX31723 Thermometer Accuracy of ±0.5°C - Configurable Resolution from 9 Bits to 12 Bits (0.5°C to 0.0625°C Resolution) - - Reduce Cost with No External ponents - - Extend Performance with Low-Voltage, 1.7V to 3.7V Power-Supply Range - - Dedicated Thermostat Output with Nonvolatile User Defined Thresholds for Quick Detection - - Selectable SPI or 3-Wire Interface for Added Flexibility - - Available in 8-Pin μMAX® Package for Board Space Savings Ordering Information PART TEMP RANGE PIN-PACKAGE MAX31722MUA+ -55NC to +125NC 8 FMAX MAX31722MUA+T -55NC to +125NC 8 FMAX MAX31723MUA+ -55NC to +125NC 8 FMAX MAX31723MUA+T -55NC to +125NC 8 FMAX +Denotes a lead(Pb)-free/Ro HS-pliant package. T = Tape and reel. VDD SDI SDO SCLK CE SERMODE GND PRECISION VDD REFERENCE I/O CONTROL...