Datasheet

PIC17C7XX
DS30289C-page 184  1998-2013 Microchip Technology Inc.
FIGURE 16-3: ANALOG INPUT MODEL
CPIN
VA
R
S
ANx
5 pF
V
DD
VT = 0.6V
V
T = 0.6V
I leakage
R
IC  1k
Sampling
Switch
SS
R
SS
CHOLD
= DAC capacitance
V
SS
6V
Sampling Switch
5V
4V
3V
2V
567891011
( k )
VDD
= 120 pF
± 500 nA
Legend CPIN
VT
I leakage
R
IC
SS
C
HOLD
= input capacitance
= threshold voltage
= leakage current at the pin due to
= interconnect resistance
= sampling switch
= sample/hold capacitance (from DAC)
various junctions