The TMP422 is a remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs.
Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.
The TMP422 includes series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to 150°C), and diode fault detection.
The TMP422 is available in a SOT23-8 package.
|Part number||Order||Device type||Interface||Local sensor accuracy (Max) (+/- C)||Temp resolution (Max) (bits)||Operating temperature range (C)||Supply voltage (Min) (V)||Supply voltage (Max) (V)||Supply current (Max) (uA)||Features||Remote channels (#)||Rating||Package Group||Package size: mm2:W x L (PKG)|
||Remote||I2C, SMBus, 2-Wire||2.5||12||-55 to 125||2.7||5.5||38||Shutdown||1||HiRel Enhanced Product||SOT-23 | 8||8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)|