TC1047 Datasheet, PDF (4/12 Pages) Microchip Technology – Precision Temperature-to-Voltage Converter

TC1047/TC1047A
3.0 DETAILED DESCRIPTION
The TC1047 and TC1047A have an output voltage that
varies linearly with temperature in degrees Celsius.
Figure 3-1 shows a plot of the output voltage versus
temperature for the TC1047 and TC1047A. The
temperature slope is fixed at 10mV/°C, and the output
voltage at 0°C is 500mV.
FIGURE 3-1: OUTPUT VOLTAGE VS. TEMPERATURE
V_OUT = (10mV/˚C) CTemperature ˚C) + 500mV
1.75
1.7
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 125
TEMPERATURE (°C)
DS21498B-page 4
© 2002 Microchip Technology Inc.