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MAX1805MEE

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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 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.
Features
♦ Multichannel 4 Remote, 1 Local (MAX1668) 2 Remote, 1 Local (MAX1805)
♦ No Calibration Required
♦ SMBus 2-Wire Serial Interface
♦ Programmable Under/Overtemperature Alarms
♦ Supports SMBus Alert Response
♦ 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)
♦ 3µA (typ) Standby Supply Current
♦ 700µA (max) Supply Current
♦ Small, 16-Pin QSOP PackageApplications Desktop and Notebook Computers LAN Servers Industrial Controls Central-Office Telecom Equipment Test and Measurement Multichip Modules
Alternatives

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.

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