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MAX1805 - Multichannel Remote / Local Temperature Sensor

General Description

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

typically lowcost, easily mounted 2N3904 NPN types that replace conventional thermistors or t

Key Features

  • o Multichannel 4 Remote, 1 Local (MAX1668) 2 Remote, 1 Local (MAX1805) o No Calibration Required o SMBus 2-Wire Serial Interface o Programmable Under/Overtemperature Alarms o Supports SMBus Alert Response o Accuracy ±2°C (+60°C to +100°C, local) ±3°C (-40°C to +125°C, local) ±3°C (+60°C to +100°C, remote) o 3µA (typ) Standby Supply Current o 700µA (max) Supply Current o Small, 16-Pin QSOP Package _______________Ordering Information PART MAX1668MEE MAX1805MEE TEMP. RANGE -55°C to +125°C -55°C.

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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.

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MAX1668/MAX1805† 19-1766; Rev 0; 8/00 Multichannel Remote/Local Temperature Sensor ________________General Description The MAX1668/MAX1805 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 lowcost, 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.