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MAX1989 - Multichannel Remote/Local Temperature Sensors

Download the MAX1989 datasheet PDF. This datasheet also covers the MAX1668 variant, as both devices belong to the same multichannel remote/local temperature sensors family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1668/MAX1805/MAX1989 are precise multichannel digital thermometers that report the temperature of all remote sensors and their own packages.

typically low-cost, easily mounted 2N3904 NPN types that replace conventional thermis

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1668_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.