Datasheet

© 2009-2011 Microchip Technology Inc. DS22188C-page 13
MCP621/1S/2/3/4/5/9
Note: Unless otherwise indicated, T
A
=+25°C, V
DD
= +2.5V to 5.5V, V
SS
= GND, V
CM
=V
DD
/3, V
OUT
=V
DD
/2,
V
L
=V
DD
/2, R
L
=2kΩ to V
L
, C
L
= 50 pF, and CAL/CS =V
SS
.
FIGURE 2-22: Normalized Internal
Calibration Voltage.
FIGURE 2-23: V
CAL
Input Resistance vs.
Temperature.
0%
5%
10%
15%
20%
25%
30%
33.20% 33.24% 33.28% 33.32% 33.36% 33.40% 33.44% 33.48% 33.52%
Normalized Internal Calibration Voltage;
V
CAL
/V
DD
Percentage of Occurrences
144 Samples
V
DD
= 2.5V and 5.5V
0
20
40
60
80
100
120
140
-50-25 0 255075100125
Ambient Temperature (°C)
Internal V
CAL
Resistance (kΩ)