MAX1619MEE+T

MAX1619MEE+T is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. The remote sensor is a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The remote channel can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor. The 2-wire serial interface accepts standard system management bus (SMBus®) write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data. It is used in applications such as desktop and notebook computer, central office telecom equipment, smart battery packs, test and measurement, LAN servers, multichip modules, industrial controls.

• Two channels measure both remote and local temperatures
• No calibration required, SMBus 2-wire serial interface
• Programmable under/overtemperature alarms, active-low OVERT output for fan control
• Supports SMBus alert response, write-once protection
• Supply voltage range from +3V to +5.5V, standby supply current is 3µA typical
• 70µA maximum supply current in auto-convert mode
• SMBus clock frequency is 100KHz maximum at (VCC = +3.3V, TA = 0°C to +85°C)
• SMBus input capacitance is 5pF typical at (VCC = +3.3V, TA = 0°C to +85°C)
• Operating temperature range from -55°C to +125°C
• 16-pin QSOP package

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