MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
Features and Benefits
Applications Examples
Small size, low cost
Easy to integrate
High precision non-contact temperature
measurements;
Factory calibrated in wide temperature range:
-40 to 125 ˚C for sensor temperature and
-70 to 380 ˚C for object temperature.
High accuracy of 0.5°C over wide temperature
range (0..+50°C for both Ta and To)
High (medical) accuracy calibration
Measurement resolution of 0.02°C
Single and dual zone versions
SMBus compatible digital interface
Customizable PWM output for continuous
reading
Thermal Comfort sensor for Mobile Air
Conditioning control system;
Temperature sensing element for residential,
commercial and industrial building air
conditioning;
Windshield defogging;
Automotive blind angle detection;
Industrial temperature control of moving parts;
Temperature control in printers and copiers;
Home appliances with temperature control;
Healthcare;
Available in 3V and 5V versions
Simple adaptation for 8 to 16V applications
Power saving mode
Different package options for applications and
measurements versatility
Livestock monitoring;
Movement detection;
Multiple zone temperature control – up to 100
sensors can be read via common 2 wires
Thermal relay/alert
Automotive grade
Body temperature measurement
Ordering Information
Part No.
MLX90614
Temperature Code
E (-40°C to 85°C)
K (-40°C to 125°C)
Package Code
SF (TO-39)
- Option Code
- X X X
(1) (2) (3)
(1) Supply Voltage/
Acccuracy
A - 5V
(2) Number of thermopiles:
A – single zone
(3) Package options:
A – Standard package
B – Reserved
B – dual zone
B - 3V
C – 35° FOV
C - Reserved
D - 3V medical accuracy
Example:
MLX90614ESF-BAA
1 Functional diagram
2 General Description
MLX90614Axx: Vdd=4.5...5.5V
The MLX90614 is an Infra Red thermometer for non
contact temperature measurements. Both the IR sensitive
thermopile detector chip and the signal conditioning ASSP
are integrated in the same TO-39 can.
Thanks to its low noise amplifier, 17-bit ADC and powerful
DSP unit, a high accuracy and resolution of the
thermometer is achieved.
J1
1
MLX90614
SCL
Vz
U1
SCL
PWM
SDA
4
Vss
SDA
Vdd
2
Vdd
3
C1
GND
0.1uF
CON1
The thermometer comes factory calibrated with a digital
PWM and SMBus (System Management Bus) output.
C1 value and type may differ
in different applications
for optimum EMC
As
a standard, the 10-bit PWM is configured to
continuously transmit the measured temperature in range
of -20 to 120 ˚C, with an output resolution of 0.14 ˚C and
the POR default is SMBus.
MLX90614 connection to SMBus
Figure 1 Typical application schematics
3901090614
Rev 003
Page 1 of 40
Data Sheet
03/Oct/2007
MELEXIS [ Melexis Microelectronic Systems ]
