MAX1668MEE+ by Analog Devices

Multichannel Remote/Local Temperature Sensors


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 MAX1668/MAX1805/MAX1989 are available in small, 16-pin QSOP surface-mount packages. The MAX1989 is also available in a 16-pin TSSOP.

Where to Buy

Prices starting from US$10.61

Distributor Stock
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Farnell
from US$14.86
40
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Analog Devices
from US$13.36
4,348
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CoreStaff
from US$10.61
86
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Newark Electronics
from US$17.71
40
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element14
from US$18.24
40
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Avnet Asia
from US$13.34
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Features

Multichannel 4 Remote, 1 Local (MAX1668/MAX1989) 2 Remote, 1 Local (MAX1805)
4 Remote, 1 Local (MAX1668/MAX1989)
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)
±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/TSSOP Packages

Specifications

Sensor Type Remote
# Channels Four
Interface 2-Wire/I2C/SMBus
Alarm Output Alert
Functions Remote & Local Sensor
Accuracy (±°C) 2
Parasite Pwr. No
Temp. Resolution (bits) 8
Oper. Temp. (°C) -55 to +125
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 4.49


MAX1668MEE+ Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 5DEG C QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Digital
Sensing Accuracy Range ± 5°C
Sensing Temperature Min -55°C
Sensing Temperature Max 125°C
Sensor Case Style QSOP
No. of Pins 16Pins
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Multichannel Remote/Local Temp | Analog Devices
Temperature Sensor, 5Deg C, Qsop-16 | Newark Electronics
TEMPERATURE SENSOR, 5DEG C, QSOP-16 | element14
Temp Sensor Digital Serial (2-Wire) 16-Pin QSOP Tube | Avnet Asia

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1668MEE+ ?

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Is the MAX1668MEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1668MEE+ have stock available?

Authorised distributors including Analog Devices, CoreStaff, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1668MEE+ .

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