PIC16F690DM-PCTLHS Microchip Technology, PIC16F690DM-PCTLHS Datasheet - Page 102
PIC16F690DM-PCTLHS
Manufacturer Part Number
PIC16F690DM-PCTLHS
Description
BOARD DEMO PICTAIL HUMIDITY SNSR
Manufacturer
Microchip Technology
Series
PICtail™r
Datasheets
1.PIC16F690DM-PCTLHS.pdf
(36 pages)
2.PIC16F690DM-PCTLHS.pdf
(32 pages)
3.PIC16F690DM-PCTLHS.pdf
(306 pages)
4.PIC16F690DM-PCTLHS.pdf
(14 pages)
Specifications of PIC16F690DM-PCTLHS
Sensor Type
Humidity
Sensing Range
1 ~ 99% RH
Interface
Analog
Voltage - Supply
5V
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
MCP6291, PIC16F690
Processor To Be Evaluated
MCP6291 and PIC16F690
Interface Type
ICSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162061 - HEADER INTRFC MPLAB ICD2 20PIN
Sensitivity
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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PIC16F631/677/685/687/689/690
8.7
A simplified circuit for an analog input is shown in
Figure 8-6. Since the analog input pins share their con-
nection with a digital input, they have reverse biased
ESD protection diodes to V
input, therefore, must be between V
input voltage deviates from this range by more than
0.6V in either direction, one of the diodes is forward
biased and a latch-up may occur.
A maximum source impedance of 10 kΩ is recommended
for the analog sources. Also, any external component
connected to an analog input pin, such as a capacitor or
a Zener diode, should have very little leakage current to
minimize inaccuracies introduced.
FIGURE 8-6:
DS41262E-page 100
Analog Input Connection
Considerations
Legend: C
V
A
Note 1: See Section 17.0 “Electrical Specifications”
Rs < 10K
I
R
R
V
V
ANALOG INPUT MODEL
LEAKAGE
A
T
PIN
IC
S
A
DD
IN
= Input Capacitance
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
= Threshold Voltage
and V
C
5 pF
PIN
SS
SS
and V
. The analog
DD
V
DD
. If the
V
V
T
T
≈ 0.6V
≈ 0.6V
Note 1: When reading a PORT register, all pins
I
Vss
LEAKAGE
2: Analog levels on any pin defined as a
configured as analog inputs will read as a
‘0’. Pins configured as digital inputs will
convert as an analog input, according to
the input specification.
digital input, may cause the input buffer to
consume more current than is specified.
R
IC
(1)
© 2008 Microchip Technology Inc.
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