����������������������������������������������������������������� Maxim Integrated Products 6

MAX31855

Cold-Junction Compensated

Thermocouple-to-Digital Converter

Typical Operating Characteristics

ADC ACCURACY vs. ADC INPUT VOLTAGE

ADC INPUT VOLTAGE (mV)

40

20

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

-1.0

060

INTERNAL TEMPERATURE = +25°C

ADC ACCURACY vs. ADC INPUT VOLTAGE

ACROSS TEMPERATURE

ADC INPUT VOLTAGE (mV)

40

20

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

-0.7

060

AT -40°C

AT +85°C

AT +25°C

INTERNAL TEMPERATURE SENSOR

ACCURACY

TEMPERATURE (°C)

80

60

20

40

0

-20

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

-0.2

-40

100

NOTE: THIS DATA WAS TAKEN

IN PRECISION BATH SO HIGH

TEMPERATURE LIMIT IS 90°C

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

100 120

80

60

40

20

0

-20

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0

-40