Cold-Junction-Compensated K-Thermocouple-

to-Digital Converter (0°C to +1024°C)

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

SO Current ........................................................................ 50mA

ESD Protection (Human Body Model) ........................... ±2000V

8-Pin SO (derate 5.88mW/°C above +70°C) .............. 471mW

Operating Temperature Range ..........................-20°C to +85°C

Storage Temperature Range ............................-65°C to +150°C

Junction Temperature .................................................... +150°C

SO Package

Vapor Phase (60s) . .....................................................+215°C

Infrared (15s) ..............................................................+220°C

Lead Temperature (soldering, 10s) ............................... +300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

-5

+5

-6

+6

-8

+8

-9

+9

-17

+17

Temperature Error

°C

to +1000

(Note 2)

-19

+19

LSB

Thermocouple Conversion

Constant

10.25

µV/LSB

-3.0

+3.0

Cold-Junction

Compensation Error

(Note 2)

-3.0

+3.0

°C

Resolution

0.25

°C

Thermocouple Input

Impedance

60

k

Ω

Supply Voltage

3.0

5.5

V

Supply Current

0.7

1.5

mA

Power-On Reset Threshold

1

2

2.5

V

Power-On Reset Hysteresis

50

mV

Conversion Time

(Note 2)

0.17

0.22

s

SERIAL INTERFACE

Input Low Voltage

0.3 x

V

Input High Voltage

0.7 x

V

Input Leakage Current

±5µA

Input Capacitance

5pF