Overview








Temperature Sensors



DATA SHEETS
Part Number Description Key Advantages
MAX6635EVKIT Evaluation Kit for the MAX6633, MAX6634, and MAX6635
MAX6662EVKIT Evaluation Kit for the MAX6662
MAX6643, MAX6644, MAX6645 Automatic PWM Fan-Speed Controllers with Overtemperature Output

Automatic PWM Fan-Speed Controllers with Overtemperature Output Eliminate Software Overhead
MAX6641 SMBus-Compatible Temperature Monitor with Automatic PWM Fan-Speed Controller

Industry's Smallest, Single Temperature Sensor and Fan Controller in MSOP Package
MAX6514, MAX6515 Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23

Industry's Most Accurate Temperature Switches Available in a SOT23 Package
MAX6695, MAX6696 Dual Remote/Local Temperature Sensors with SMBus Serial Interface

Dual Remote/Local Temperature Sensors with SMBus Serial Interface in a µMAX Package
DS1922L, DS1922T Temperature Logger iButton with 8KB Datalog Memory

Temperature Data-Logger iButtons Feature 8KB Datalog Memory
MAX6653, MAX6663, MAX6664 Temperature Monitors and PWM Fan Controllers
DS1626, DS1726 High-Precision 3-Wire Digital Thermometer and Thermostat

High-Precision, 3-Wire Digital Thermometers/Thermostats Provide Temperature Measurements and Stand-Alone Thermostat Capability over a -55°C to +125°C Range
MAX6648, MAX6692 Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms
MAX6646, MAX6647, MAX6649 +145°C Precision SMBus-Compatible Remote/Local Sensors with Overtemperature Alarms
MAX6662 12-Bit + Sign Temperature Sensor with SPI-Compatible Serial Interface
MAX6633, MAX6634, MAX6635 12-Bit Plus Sign Temperature Sensors with SMBus/I²C-Compatible Serial Interface
MAX6627, MAX6628 Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface

First Remote SPI-Compatible Temperature Sensors in SOT Packages ±1°C Accurate with 12-Bit +0.0625°C Resolution
DS18B20 Programmable Resolution 1-Wire Digital Thermometer
DS1822 Econo 1-Wire Digital Thermometer
DS1821 Programmable Digital Thermostat and Thermometer
MAX6652 Temperature Sensor and System Monitor in a 10-Pin µMAX

Temperature Sensor and System Monitor in a 10-pin µMax
MAX6625, MAX6626 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface in a SOT23

9-Bit and 12-Bit Temperature Sensing in A 6-Lead SOT
MAX6605 Low-Power Analog Temperature Sensor in SC70 Package

Low-Power Analog Temperature Sensor in an SC-70 Package
MAX6509, MAX6510 Resistor-Programmable SOT Temperature Switches

Resistor-Programmable Temp Comparators in a SOT23!
MAX6576, MAX6577 SOT Temperature Sensors with Period/Frequency Output

SOT23 Single Wire Digital Temperature Sensors
MAX6575H, MAX6575L SOT Temperature Sensor with Multidrop Single Wire Digital Interface

SOT23 Single-Wire Digital Temperature Sensors
MAX6501, MAX6502, MAX6503,
...		 Low-Cost, +2.7V to +5.5V, Micropower Temperature Switches in SOT23

Industry's Simplest Temperature Detectors - Easy to Use, Low Cost, No External Components Required!



Key Specifications:

Fan Controllers
Part Number Sensor Type Fan Controller Functions Fan Cntrl. Interface Accuracy
(±°C)		 Temp. Thresh.
(°C)		 Temp. Resolution
(bits)
MAX6641  Remote - PWM 2-Wire/I2C/SMBus 1 Programmable -
MAX6643  - - 2 -
MAX6644  Remote & Local Sensor - 2 -
MAX6653 
Dual Temperature Alarms
Fan Failure Detector
Remote & Local Sensor
 2-Wire/I2C/SMBus 1 11
MAX6663 
Dual Temperature Alarms
Fan Failure Detector
Remote & Local Sensor
 2-Wire/I2C/SMBus 1 11
MAX6664 
Dual Temperature Alarms
Fan Failure Detector
Remote & Local Sensor
 2-Wire/I2C/SMBus 1 11
See All Fan Controllers (19)

iButton Products
Part Number Applications Memory Type Memory Size Data Logger Type Data Logger Size Data Logger Sample Rate Data Logger Accuracy Data Logger Resolution Data Logger Measuremt. Range Security Features Prog. Alarm Unique Ware Real Time Clock Smallest Available Pckg.
(mm2)
max w/pins
DS1922L 
Asset Management
Temperature Data Logging
 NV SRAM 512 Bytes
Hi Accuracy
Temperature
 8192 Byte 1s to 273hrs Correctible to ±0.5°C Selectable 8-bit (0.5°C) or 11-bit (0.0625°C) -40°C to +85°C Password Protected Temperature High/Low No Yes 301
DS1922T  Temperature 0°C to +125°C
See All iButton Products (26)

Temperature Sensors
Part Number Sensor Type Alarm Output Functions Interface Remote Chan. Accuracy
(±°C)		 Parasite Pwr. Temp. Thresh. Temp. Resolution
(bits)		 Multi Droppable Oper. Temp.
(°C)		 Smallest Available Pckg.
(mm2)
max w/pins
MAX6695  Remote
Alert
Overt
Dual Temperature Monitor
Remote & Local Sensor
 2-Wire/I2C/SMBus Dual 1 No Programmable - - -40 to +125 15.4
MAX6696  Remote
Alert
Overt
 Dual Temperature Sensor 2-Wire/I2C/SMBus Dual 1 No Programmable - - -40 to +125 30.9
MAX6646  Remote
Alert
Overt
Dual Temperature Alarms
Remote & Local Sensor
 2-Wire/I2C/SMBus Single 0.8 No Programmable 11 - -55 to +125 16.2
MAX6647  Remote
Alert
Overt
Dual Temperature Alarms
Remote & Local Sensor
 2-Wire/I2C/SMBus Single 0.8 No Programmable 11 - -55 to +125 16.2
DS1626  Local -
Dual Output Temperature Switch
Dual Temperature Alarms
Standalone Thermostat
Temperature Switch/Temperature Comparator
3-Wire
Logic
 - 0.5 No Programmable (NV)
9
10
11
12
 - -55 to +125 16.2
DS1726  Local -
Dual Output Temperature Switch
Dual Temperature Alarms
Standalone Thermostat
Temperature Switch/Temperature Comparator
3-Wire
Logic
 - 1 No Programmable (NV)
9
10
11
12
 - -55 to +125 16.2
MAX6648  Remote
Alert
Overt
Dual Temperature Alarms
Remote & Local Sensor
 2-Wire/I2C/SMBus Single 0.8 No Programmable 10 - -55 to +125 16.2
MAX6649  Remote
Alert
Overt
Dual Temperature Alarms
Remote & Local Sensor
 2-Wire/I2C/SMBus Single 0.8 No Programmable 11 - -55 to +125 16.2
MAX6692  Remote
Alert
Overt
Dual Temperature Alarms
Remote & Local Sensor
 2-Wire/I2C/SMBus Single 0.8 No Programmable 10 - -55 to +125 16.2
MAX6662  Local
Alert
Overt
 - 3-Wire/SPI - 1 No Programmable 13 - -55 to +125 30.9
MAX6633  Local - - 2-Wire/I2C/SMBus - 1 No - 13 Yes -55 to +150 30.9
MAX6634  Local Alert - 2-Wire/I2C/SMBus - 1 No Programmable 13 Yes -55 to +150 30.9
MAX6635  Local
Alert
Overt
 - 2-Wire/I2C/SMBus - 1 No Programmable 13 Yes -55 to +150 30.9
MAX6627  Remote - - 3-Wire/SPI Single 1 No - 13 - -55 to +125 9
MAX6628  Remote - - 3-Wire/SPI Single 1 No - 13 - -55 to +125 9
MAX6575  Local - - Pulse Delay - 3 No - - Yes -55 to +125 9
DS1822  Local - - 1-Wire - 2 Yes Programmable (NV)
9
10
11
12
 Yes -55 to +125 19.5
DS18B20  Local - - 1-Wire - 0.5 Yes Programmable (NV)
9
10
11
12
 Yes -55 to +125 30.9
DS1821  Local -
Standalone Thermostat
Temperature Switch/Temperature Comparator
1-Wire Non-Network
Logic
 - 1 No Programmable (NV) 8 - -55 to +125 44.1
MAX6652  Local Alert Voltage Monitor 2-Wire/I2C/SMBus - 2 No Programmable 8 - -40 to +125 15.4
MAX6625  Local Overt - 2-Wire/I2C/SMBus - 3 No Programmable 9 Yes -40 to +125 9
MAX6626  Local Overt - 2-Wire/I2C/SMBus - 3 No Programmable 12 Yes -55 to +125 9
MAX6605  Local - - Analog - 1 No - - - -55 to +125 5.3
MAX6576  Local - - Period µ Temp. - 3 No - - - -55 to +125 9
MAX6577  Local - - Freq. µ Temp. - 3 No - - - -55 to +125 9
See All Temperature Sensors (103)

Temperature Switches
Part Number Switch Type Functions Interface Accuracy
(±°C)		 Temp. Thresh.
(°C)		 Features RoHS Available Package/Pins
MAX6514  Local Temperature Switch/Temperature Comparator Logic 1.5 Factory Programmed
Factory Set T(High) Outputs
Push Pull Active High Output
 Yes
SOT/5
MAX6515  Temperature Switch/Temperature Comparator Logic 1.5 Factory Programmed
Factory Set T(High) Outputs
Open Drain Active Low Output
SOT/5
DS1626 
Dual Output Temperature Switch
Dual Temperature Alarms
Standalone Thermostat
Temperature Switch/Temperature Comparator
3-Wire
Logic
 0.5
Factory Programmed
Programmable
High Accuracy
Nonvolatile Thermostatic Settings
Push Pull Active High Output
Separate High and Low Temperature Thresholds
µMAX/8
SOIC/8
DS1726 
Dual Output Temperature Switch
Dual Temperature Alarms
Standalone Thermostat
Temperature Switch/Temperature Comparator
3-Wire
Logic
 1
Factory Programmed
Programmable
Push Pull Active High Output
Separate High and Low Temperature Thresholds
µMAX/8
DS1821 
Standalone Thermostat
Temperature Switch/Temperature Comparator
1-Wire Non-Network
Logic
 1
Factory Programmed
Programmable
Open Drain Active Low Output
Single-Wire Interface
SOIC/8
TO92-E/3
MAX6509  Temperature Switch/Temperature Comparator Logic 0.5 Programmable
Pin Selectable Hysteresis
Resistor Programmable
SOT/5
TSOT/5
MAX6510  Temperature Switch/Temperature Comparator Logic 0.5 Programmable
Pin Selectable Hysteresis
Resistor Programmable
SOT/6
MAX6501  Temperature Switch/Temperature Comparator Logic 0.5
+45
+55
+65
+75
+85
+95
 Pin Selectable Hysteresis
SOT/5
MAX6502  Temperature Switch/Temperature Comparator Logic 0.5
+45
+55
+65
+75
+85
+95
 Pin Selectable Hysteresis
SOT/5
MAX6503  Temperature Switch/Temperature Comparator Logic 0.5
-15
+5
 Pin Selectable Hysteresis
SOT/5
MAX6504  Temperature Switch/Temperature Comparator Logic 0.5
-15
+5
 Pin Selectable Hysteresis
SOT/5
See All Temperature Switches (22)





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