MAX6675 Maxim, MAX6675 Datasheet - Page 2

• Manufacturer Part Number: MAX6675
• Description: Cold-Junction-Compensated K-Thermocoupleto-Digital Converter (0C to +1024C)
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
SO, SCK,
SO Current ........................................................................ 50mA
ESD Protection (Human Body Model) ........................... ±2000V
Continuous Power Dissipation (T
Operating Temperature Range ..........................-20°C to +85°C
Cold-Junction-Compensated K-Thermocouple-
to-Digital Converter (0°C to +1024°C)
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.
ELECTRICAL CHARACTERISTICS
(V
2
Temperature Error
Thermocouple Conversion
Constant
Cold-Junction
Compensation Error
Resolution
Thermocouple Input
Impedance
Supply Voltage
Supply Current
Power-On Reset Threshold
Power-On Reset Hysteresis
Conversion Time
SERIAL INTERFACE
Input Low Voltage
Input High Voltage
Input Leakage Current
Input Capacitance
CC
8-Pin SO (derate 5.88mW/°C above +70°C) .............. 471mW
_______________________________________________________________________________________
= +3.0V to +5.5V, T
PARAMETER
CS, T-, T+ to GND .......................-0.3V to V
CC
to GND) ................................ -0.3V to +6V
A
= -20°C to +85°C, unless otherwise noted. Typical values specified at +25°C.) (Note 1)
A
= +70°C)
SYMBOL
I
V
LEAK
C
I
V
V
CC
CC
IH
IN
IL
T
T
T
+700°C, T
T
to +1000°C, T
(Note 2)
T
(Note 2)
V
(Note 2)
V
THERMOCOUPLE
A
THERMOCOUPLE
THERMOCOUPLE
A
CC
IN
= +25°C (Note 2)
= -20°C to +85°C
= GND or V
rising
CC
+ 0.3V
A
= +25°C (Note 2)
A
CC
CONDITIONS
= +25°C
= +700°C,
= 0°C to
= +700°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature .................................................... +150°C
SO Package
Lead Temperature (soldering, 10s) ............................... +300°C
Vapor Phase (60s) . .....................................................+215°C
Infrared (15s) ..............................................................+220°C
V
V
CC
CC
= +3.3V
= +5V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
= +3.3V
= +5V
= +3.3V
= +5V
= +3.3V
= +5V
0.7 x
MIN
V
-3.0
-3.0
-17
-19
3.0
-5
-6
-8
-9
CC
1
10.25
TYP
0.25
0.17
0.7
60
50
2
5
MAX
+3.0
+3.0
0.3 x
0.22
V
+17
+19
5.5
1.5
2.5
+5
+6
+8
+9
±5
CC
µV/LSB
UNITS
LSB
mA
mV
kΩ
µA
pF
°C
°C
V
V
V
V
s