MAX6698 Precision Multichannel Temperature Sensor

By Maxim Integrated 48

MAX6698 Precision Multichannel Temperature Sensor

Maxim's MAX6698 precision multichannel temperature sensor monitors its own temperature, the temperatures of three external diode-connected transistors, and the temperatures of three thermistors. All temperature channels have programmable alert thresholds. Channels 1, 4, 5, and 6 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, active-low OVERT and active-low ALERT, assert corresponding to these bits in the status register.

The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds.

The MAX6698 is specified for an operating temperature range of -40°C to +125°C and is available in 16-pin QSOP and 16-pin TSSOP packages.

  • 3-thermal-diode inputs and 3-thermistor inputs
  • Local temperature sensor
  • 1°C remote temperature accuracy (+60°C to +100°C)
  • Temperature monitoring begins at POR for fail-safe system protection
  • Active-Low ALERT and Active-Low OVERT outputs for interrupts, throttling, and shutdown
  • Small 16-Pin QSOP and 16-Pin TSSOP packages
  • 2-Wire SMBus interface
  • Desktop computers
  • Notebook computers
  • Servers
  • Workstations