MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
Features and Benefits
Small size, low cost
Easy to integrate
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
Available in 3V and 5V versions
Simple adaptation for 8 to 16V applications
Power saving mode
Different package options for applications and
measurements versatility
Automotive grade
Applications Examples
High precision non-contact temperature
measurements;
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;
Livestock monitoring;
Movement detection;
Multiple zone temperature control – up to 100
sensors can be read via common 2 wires
Thermal relay/alert
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
B - 3V
C - Reserved
D - 3V medical accuracy
Example:
MLX90614ESF-BAA
(2) Number of thermopiles:
A – single zone
B – dual zone
(3) Package options:
A – Standard package
B – Reserved
C – 35° FOV
1 Functional diagram
J1
CON1
SCL
SDA
GND
Vdd
C1 value and type may differ
in different applications
for optimum EMC
U1
MLX90614
1
PW M
SDA
C1
M LX90614 connection to SM Bus
4
Vss
SCL
Vz
M LX90614Axx: Vdd=4.5...5.5V
3
2
Vdd
0.1uF
Figure 1 Typical application schematics
2 General Description
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.
The thermometer comes factory calibrated with a digital
PWM and SMBus (System Management Bus) output.
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.
3901090614
Page 1 of 40
Data Sheet
Rev 003
03/Oct/2007