TC1047VNBTR Datasheet, PDF (4/12 Pages) Microchip Technology – Precision Temperature-to-Voltage Converter

TC1047/TC1047A
3.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin No.
1
2
3
PIN FUNCTION TABLE
Symbol
V_DD
V_OUT
V_SS
Description
Input Supply Voltage
Temperature Sensor Output Terminal
Ground Terminal
4.0 DETAILED DESCRIPTION
The TC1047 and TC1047A have an output voltage that
varies linearly with temperature in degrees Celsius.
Figure 4-1 shows a plot of the output voltage versus
temperature for the TC1047 and TC1047A. The
temperature slope is fixed at 10 mV/°C and the output
voltage at 0°C is 500 mV.
V_OUT = (10 mV/°C) (Temperature °C) + 500 mV
1.75
1.7
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
FIGURE 4-1:
–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100 110 120
125
Temperature (°C)
Output Voltage vs. Temperature.
DS21498C-page 4
© 2005 Microchip Technology Inc.