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MAX1989 Dataheets PDF



Part Number MAX1989
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Multichannel Remote/Local Temperature Sensors
Datasheet MAX1989 DatasheetMAX1989 Datasheet (PDF)

19-1766; Rev 2; 5/03 MAX1668/MAX1805/MAX1989† Multichannel Remote/Local Temperature Sensors ________________General Description The MAX1668/MAX1805/MAX1989 are precise multichannel digital thermometers that report the temperature of all remote sensors and their own packages. The remote sensors are diode-connected transistors—typically low-cost, easily mounted 2N3904 NPN types—that replace conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers,.

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19-1766; Rev 2; 5/03 MAX1668/MAX1805/MAX1989† Multichannel Remote/Local Temperature Sensors ________________General Description The MAX1668/MAX1805/MAX1989 are precise multichannel digital thermometers that report the temperature of all remote sensors and their own packages. The remote sensors are diode-connected transistors—typically low-cost, easily mounted 2N3904 NPN types—that replace conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The remote channels 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. The data format is 7 bits plus sign, with each bit corresponding to 1°C, in two’s-complement format. The MAX166.


MAX1665X MAX1989 MAX1687


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