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AT42QT1011 Datasheet(PDF) 14 Page - ATMEL Corporation

Part No. AT42QT1011
Description  One-channel Touch Sensor IC
Download  18 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT42QT1011 Datasheet(HTML) 14 Page - ATMEL Corporation

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14
9542G–AT42–03/10
AT42QT1011
5.4
Signal Processing
5.5
DC Specifications
Vdd = 3.0V, Cs = 4.7 nF, Cx = 5 pF, Ta = recommended range, unless otherwise noted
Description
Min
Typ
Max
Units
Notes
Threshold differential
10
counts
Hysteresis
2
counts
Consensus filter length
4
samples
Max on-duration
Infinite
seconds
Vdd = 3.0V, Cs = 4.7 nF, Cx = 5 pF, Ta = recommended range, unless otherwise noted
Parameter
Description
Min
Typ
Max
Units
Notes
VDD
Supply voltage
1.8
5.5
V
IDD
Supply current, Fast mode
203.0
246.0
378.5
542.5
729.0
µA
1.8V
2.0V
3.0V
4.0V
5.0V
IDDI
Supply current, LP mode
16.5
19.5
34.0
51.5
73.5
µA
1.8V
2.0V
3.0V
4.0V
5.0V
VDDS
Supply turn-on slope
10
V/s
Required for proper start-up
VIL
Low input logic level
0.2 Vdd
0.3 Vdd
V
Vdd = 1.8V – 2.4V
Vdd = 2.4V – 5.5V
VHL
High input logic level
0.7 Vdd
0.6 Vdd
V
Vdd = 1.8V – 2.4V
Vdd = 2.4V – 5.5V
VOL
Low output voltage
0.5
V
OUT, 4 mA sink
VOH
High output voltage
2.3
V
OUT, 1 mA source
IIL
Input leakage current
<0.05
1
µA
CX
Load capacitance range
2
50
pF
AR
Acquisition resolution
9
14
bits


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