MLX90247ESF-DSA Melexis Inc, MLX90247ESF-DSA Datasheet - Page 6

• Manufacturer Part Number: MLX90247ESF-DSA
• Description: IC SENS THERMOPILE W/THERM TO-39
• Manufacturer: Melexis Inc

Specifications of MLX90247ESF-DSA

• Rohs Status: RoHS non-compliant
• Sensing Temperature: -40°C ~ 85°C
• Output Type: Voltage
• Package / Case: TO-39
• Other names: MLX90247-ESF-DSA; MLX90247-ESF-DSA; MLX90247ESF-B; MLX90247ESF-B; MLX90247LRA-B

8. Applications information
The output voltage of the thermopile is positive when the object is at higher temperature than the sensor;
it is negative when the object is at lower temperature than the sensor. As the output voltage can become
positive as well as negative, the sensor has to be connected to a differential amplifier that can accept both
positive and negative input signals. The figure below shows a solution using the MLX90313 infrared
sensor interface chip, which accepts common mode input voltages in the range [-0.1V;Vdd-3V]
The figure below shows a typical application with the AD8628 low-offset low-drift differential opamp from
Analog Devices. The AD8628 has single voltage supply, and can only accept positive common mode
input signals. Vref sets the output offset (output voltage when To=Ta).
3901090247
Rev. 004
Vref
Vref
MLX90247
MLX90247
MLX90247
MLX90247
MLX90601KZA-CKA
MLX90601KZA-CKA
MLX90601KZA-CKA
MLX90601KZA-CKA
MLX90601KZA-CKA
MLX90601KZA-CKA
MLX90601KZA-CKD
MLX90601KZA-CKD
MLX90601KZA-CKD
MLX90601KZA-CKD
MLX90601KZA-CKD
MLX90601KZA-CKD
MLX90601KZA-CLA
MLX90601KZA-CLA
MLX90601KZA-CLA
MLX90601KZA-CLA
MLX90601KZA-CLA
MLX90601KZA-CLA
Rsens
Rsens
Rsens
Rsens
VSS
VSS
VSS
VSS
IR+
IR+
IR+
IR+
IR-
IR-
IR-
IR-
MLX90247DSA
MLX90247DSA
60kΩ
60kΩ
100Ω
100Ω
IRINP
IRINP
IRINP
IRINP
IRINN
IRINN
IRINN
IRINN
TINN
TINN
TINN
TINN
TINP
TINP
TINP
TINP
CREF
CREF
CREF
CREF
MLX90313
MLX90313
MLX90313
MLX90313
Vthermopile
Vthermopile
R3
R3
R3
R3
VSS
VSS
VSS
VSS
TEMPOUT
TEMPOUT
TEMPOUT
TEMPOUT
VREFP
VREFP
VREFP
VREFP
IROUT
IROUT
IROUT
IROUT
VDD
VDD
VDD
VDD
REL1
REL1
REL1
REL1
SCLK
SCLK
SCLK
SCLK
SDO
SDO
SDO
SDO
CS
CS
CS
CS
SDI
SDI
SDI
SDI
R3 = 100k Ω
R3 = 100k Ω
R3 = 100k Ω
R3 = 100k Ω
C3 = 10 µ F
C3 = 10 µ F
C3 = 10 µ F
C3 = 10 µ F
+
+
-
-
100kΩ
100kΩ
5V
5V
C3
C3
C3
C3
C3
C3
5V
5V
5V
5V
TEMPOUT
TEMPOUT
TEMPOUT
TEMPOUT
CS
CS
CS
CS
SCLK
SCLK
SCLK
SCLK
DIN
DIN
DIN
DIN
DOUT
DOUT
DOUT
DOUT
REL
REL
REL
REL
VREF
VREF
VREF
VREF
VSS/GND
VSS/GND
VSS/GND
VSS/GND
VSS/GND
VSS/GND
IROUT
IROUT
IROUT
IROUT
Discrete Infrared Thermopile Detectors
Page 6 of 9
Data Sheet
Oct/07