PIC16F688

Manufacturer Part NumberPIC16F688
ManufacturerMicrochip Technology Inc.
PIC16F688 datasheet
 


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Page 76/202:

SS Rss

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PIC16F688
FIGURE 8-4:
ANALOG INPUT MODEL
ANx
Rs
C
PIN
VA
5 pF
Legend: C
= Input Capacitance
PIN
V
= Threshold Voltage
T
I
= Leakage current at the pin due to
LEAKAGE
various junctions
R
= Interconnect Resistance
IC
SS
= Sampling Switch
C
= Sample/Hold Capacitance
HOLD
FIGURE 8-5:
ADC TRANSFER FUNCTION
3FFh
3FEh
3FDh
3FCh
3FBh
004h
003h
002h
001h
000h
V
/V
-
SS
REF
DS41203D-page 74
V
DD
Sampling
Switch
V
= 0.6V
T
≤ 1k

SS Rss

R
IC
I
LEAKAGE
V
= 0.6V
T
± 500 nA
6V
5V
V
4V
DD
3V
2V
Full-Scale Range
1 LSB ideal
Full-Scale
Transition
Analog Input Voltage
1 LSB ideal
Zero-Scale
V
/V
+
DD
REF
Transition
C
= 10 pF
HOLD
V
/V
-
SS
REF
R
SS
5 6 7 8 9 10 11
Sampling Switch
(kΩ)
© 2007 Microchip Technology Inc.