MAX6613
Detailed Description
The MAX6613 analog output temperature sensor’s 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
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