Rainbow-electronics MAX6613 Uživatelský manuál Strana 4

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MAX6613
Detailed Description
The MAX6613 analog output temperature sensors out-
put voltage is a discrete function of its die temperature.
The maximum supply current is 13µA, and the supply
voltage range is from 2.5V to 5.5V for the -55°C to
+130°C temperature range, or 1.8V to 5.5V for the
+25°C to +130°C temperature range.
Transfer Function
The temperature-to-voltage transfer function is approxi-
mately linear and can be described by the quadratic
equation:
V
OUT
= -0.0000022
T
2
- 0.01105
T + 1.8455V
In many cases, a linear approximation can be applied:
V
OUT
= -0.01123
T + 1.8455V
where T is the die temperature of the MAX6613 in °C.
Therefore:
T = (V
OUT
- 1.8455) / 0.01123V
Compatibility with Other Temperature
Sensors
The MAX6613 can be used to replace temperature sen-
sors using other output algorithms. Table 1 provides
information for a linear and quadratic output equation.
Contact the factory for performance information about
another equation.
Low-Voltage Analog Temperature
Sensor in an SC70 Package
4 _______________________________________________________________________________________
Table 1. Linear and Quadratic Output Equation
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
= 2.7V, T
A
= -55°C 2.06 6.57
V
CC
= 2.7V, T
A
= -40°C 1.19 5.73
V
CC
= 2.7V, T
A
= -20°C 0.55 4.36
V
CC
= 2.7V, T
A
= 0°C 0.35 2.85
V
CC
= 2.7V, T
A
= +20°C -0.37 +2.15
V
CC
= 2.7V, T
A
= +40°C -1.32 +1.61
V
CC
= 2.7V, T
A
= +60°C -2.02 +1.92
V
CC
= 2.7V, T
A
= +85°C -2.32 +1.66
V
CC
= 2.7V, T
A
= +100°C -2.78 +2.01
V
CC
= 2.7V, T
A
= +125°C -3.11 +2.54
Temperature Error
Based on:
OUT = 1.8639 - 0.0115
Temp
(Note 4)
V
CC
= 2.7V, T
A
= +130°C -3.37 +2.90
°C
V
CC
= 2.7V, T
A
= -55°C 1.08 5.76
V
CC
= 2.7V, T
A
= -40°C 0.67 5.33
V
CC
= 2.7V, T
A
= -20°C 0.42 4.28
V
CC
= 2.7V, T
A
= 0°C 0.35 2.85
V
CC
= 2.7V, T
A
= +20°C -0.49 +1.99
V
CC
= 2.7V, T
A
= +30°C -0.95 +1.53
V
CC
= 2.7V, T
A
= +40°C -1.81 +1.05
V
CC
= 2.7V, T
A
= +50°C -1.93 +0.54
V
CC
= 2.7V, T
A
= +60°C -3.11 +0.67
V
CC
= 2.7V, T
A
= +85°C -4.51 -0.74
V
CC
= 2.7V, T
A
= +100°C -5.77 -1.28
V
CC
= 2.7V, T
A
= +125°C -7.74 -2.52
Temperature Error
Based on:
OUT = 1.8639 - 0.0115
Temp -
0.00000388
Temp
2
(Note 4)
V
CC
= 2.7V, T
A
= +130°C -8.35 -2.58
°C
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