MAX31722MUA+

MAX31722MUA+ is a digital thermometer and thermostat with an SPI/3-wire interface that provides temperature readings that indicate the device's temperature. No additional components are required; the device is truly a temperature-to-digital converter. Temperature readings are communicated 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 (active-low TOUT). Two thermostat operating modes, comparator and interrupt, control thermostat operation based on user-defined nonvolatile trip points (THIGH and TLOW). Applications include networking equipment, cellular base stations, industrial equipment, and any thermally sensitive systems.

• Maximize system accuracy in broad range of thermal management applications
• Reduce cost with no external components
• 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
• Supply voltage range from 1.7 to 3.7V
• MAX31722 thermometer error is ±2°C max at -40°C to +85°C
• Shutdown current is 2µA max at VDD=1.7V to 3.7V, TJ=-55 to +125°C
• 8µMAX package
• Temperature range from -55°C to +125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party