Datasheet

 2010-2012 Microchip Technology Inc. DS41417B-page 95
PIC16(L)F722A/723A
FIGURE 9-3: ANALOG INPUT MODEL
FIGURE 9-4: ADC TRANSFER FUNCTION
CPIN
VA
Rs
ANx
5 pF
V
DD
VT  0.6V
V
T  0.6V
I
LEAKAGE
(1)
RIC  1k
Sampling
Switch
SS
Rss
C
HOLD = 10 pF
V
SS/VREF-
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 23.0 “Electrical Specifications”.
RSS = Resistance of Sampling Switch
FFh
FEh
ADC Output Code
FDh
FCh
04h
03h
02h
01h
00h
Full-Scale
FBh
1 LSB ideal
VSS
Zero-Scale
Transition
V
REF
Transition
1 LSB ideal
Full-Scale Range
Analog Input Voltage