Datasheet

PIC16(L)F1824/1828
DS41419D-page 162  2010-2012 Microchip Technology Inc.
FIGURE 16-4: ANALOG INPUT MODEL
FIGURE 16-5: ADC TRANSFER FUNCTION
CPIN
VA
Rs
Analog
5 pF
V
DD
VT  0.6V
V
T  0.6V
I
LEAKAGE
(1)
RIC  1k
Sampling
Switch
SS
Rss
C
HOLD = 10 pF
ref-
6V
Sampling Switch
5V
4V
3V
2V
567891011
(k)
V
DD
Legend:
C
PIN
VT
I LEAKAGE
RIC
SS
C
HOLD
= Input Capacitance
= Threshold Voltage
= Leakage current at the pin due to
= Interconnect Resistance
= Sampling Switch
= Sample/Hold Capacitance
various junctions
RSS
Note 1: Refer to Section 30.0 “Electrical Specifications”.
RSS = Resistance of Sampling Switch
Input
pin
3FFh
3FEh
ADC Output Code
3FDh
3FCh
03h
02h
01h
00h
Full-Scale
3FBh
0.5 LSB
ref-
Zero-Scale
Transition
ref+
Transition
1.5 LSB
Full-Scale Range
Analog Input Voltage