MAX31855TASA-T 查看數據表（PDF） - Maxim Integrated
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MAX31855TASA-T Datasheet PDF : 13 Pages
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MAX31855
Cold-Junction Compensated
Thermocouple-to-Digital Converter
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Range (VCC to GND)..................-0.3V to +4.0V
All Other Pins............................................ -0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70NC)
SO (derate 5.9mW/NC above +70NC)........................470.6mW
ESD Protection (All Pins, Human Body Model).............±2000kV
Operating Temperature Range......................... -40NC to +125NC
Junction Temperature......................................................+150NC
Storage Temperature Range ........................... -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow) ......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SO
Junction-to-Ambient Thermal Resistance (BJA).........170NC/W
Junction-to-Case Thermal Resistance (BJC)................40NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
RECOMMENDED OPERATING CONDITIONS
(TA = -40NC to +125NC, unless otherwise noted.)
PARAMETER
Power-Supply Voltage
Input Logic 0
SYMBOL
VCC
VIL
(Note 2)
CONDITIONS
Input Logic 1
VIH
MIN TYP MAX UNITS
3.0
3.3
3.6
V
-0.3
+0.8
V
2.1
VCC +
0.3
V
DC ELECTRICAL CHARACTERISTICS
(3.0V P VCC P 3.6V, TA = -40NC to +125NC, unless otherwise noted.)
PARAMETER
Power-Supply Current
Thermocouple Input Bias Current
SYMBOL
ICC
CONDITIONS
TA = -40NC to +125NC, 100mV across the
thermocouple inputs
Power-Supply Rejection
Power-On Reset Voltage
Threshold
VPOR (Note 3)
Power-On Reset Voltage
Hysteresis
Output High Voltage
Output Low Voltage
VOH
VOL
IOUT = -1.6mA
IOUT = 1.6mA
MIN
-100
TYP
900
-0.3
2
MAX
1500
+100
2.5
UNITS
FA
nA
NC/V
V
0.2
V
VCC -
0.4
V
0.4
V
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*The parametric values (min, typ, max limits) shown in the Electrical Characteristics table supersede values quoted elsewhere in this data sheet.
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