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CAP1208 Datasheet(PDF) 11 Page - Microchip Technology

Part # CAP1208
Description  8-Channel Capacitive Touch Sensor
PDF  67 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CAP1208 Datasheet(HTML) 11 Page - Microchip Technology

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8-Channel Capacitive Touch Sensor
Datasheet
 2014 Microchip Technology Inc.
DS00001570B-page 11
Table 2.2 Electrical Specifications
VDD = 3V to 5.5V, TA = 0°C to 85°C, all Typical values at TA = 25°C unless otherwise noted.
CHARACTERISTIC
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
DC POWER
Supply Voltage
VDD
3.0
5.5
V
Supply Current
ISTBY_DEF
120
170
µA
Standby state active
1 sensor input monitored
Default conditions (8 avg, 70ms
cycle time)
ISTBY_LP
50
µA
Standby state active
1 sensor input monitored
1 avg, 140ms cycle time
IDSLEEP_3V
5TBD
µA
Deep Sleep state active
No communications
TA < 40°C
3.135 < VDD < 3.465V
IDSLEEP_5V
TBD
TBD
µA
Deep Sleep state active
No communications
TA < 40°C
VDD = 5V
IDD
500
750
µA
Capacitive Sensing Active
CAPACITIVE TOUCH SENSOR INPUTS
Maximum Base
Capacitance
CBASE
50
pF
Pad untouched
Minimum Detectable
Capacitive Shift
ΔC
TOUCH
20
fF
Pad touched - default conditions
Recommended Cap
Shift
ΔC
TOUCH
0.1
2
pF
Pad touched - Not tested
Power Supply
Rejection
PSR
±3
±10
counts
/ V
Untouched Current Counts
Base Capacitance 5pF - 50pF
Negative Delta Counts disabled
Maximum sensitivity
All other parameters default
POWER-ON AND BROWN-OUT RESET (SEE Section 4.2, "Reset")
Power-On Reset
Voltage
VPOR
1
1.3
V
Pin States Defined
Power-On Reset
Release Voltage
VPORR
2.85
V
Rising VDD
Ensured by design
Brown-Out Reset
VBOR
2.8
V
Falling VDD
VDD Rise Rate
(ensures internal
POR signal)
SVDD
0.05
V/ms
0 to 3V in 60ms



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