PIC12F1840 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'PIC12F1840' PDF : 410 Pages View PDF
PIC12(L)F1840
FIGURE 16-4:
ANALOG INPUT MODEL
Analog
Input
Rs pin
VDD
VT 0.6V
RIC 1k
Sampling
Switch
SS Rss
VA
CPIN
5 pF
VT 0.6V
I LEAKAGE(1)
CHOLD = 10 pF
VSS/VREF-
Legend: CHOLD
CPIN
= Sample/Hold Capacitance
= Input Capacitance
I LEAKAGE = Leakage current at the pin due to
various junctions
RIC
= Interconnect Resistance
RSS
= Resistance of Sampling Switch
SS
= Sampling Switch
VT
= Threshold Voltage
Note 1: Refer to Section 30.0 “Electrical Specifications”.
6V
5V
RSS
VDD 4V
3V
2V
5 6 7 8 9 10 11
Sampling Switch
(k)
FIGURE 16-5:
ADC TRANSFER FUNCTION
3FFh
3FEh
3FDh
3FCh
3FBh
Full-Scale Range
03h
02h
01h
00h
VREF-
0.5 LSB
Zero-Scale
Transition
Full-Scale
Transition
Analog Input Voltage
1.5 LSB
VREF+
DS41441C-page 130
2011-2012 Microchip Technology Inc.
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