at42qt100a ATMEL Corporation, at42qt100a Datasheet - Page 13

• Manufacturer Part Number: at42qt100a
• Description: Qtouch? Charge Transfer Ic
• Manufacturer: ATMEL Corporation

5.4
Vdd = 3.0V, Cs = 10 nF, Cx = 5 pF, Ta = recommended range, unless otherwise noted
Note 1: Threshold and hysteresis differ from the QT100 in order to maintain the same sensitivity levels; see
on page
5.5
Vdd = 3.0V, Cs = 10 nF, Cx = 5 pF, Ta = recommended range, unless otherwise noted
9531A–AT42–02/09
Description
Threshold differential
Hysteresis
Consensus filter length
Max on-duration
Parameter
V
V
Iddl
V
V
I
V
C
A
I
DD
DDS
OH
OL
HL
IL
IL
R
X
Signal Processing
DC Specifications
4.
Supply current, Fast mode
Supply current, LP Mode
Supply turn-on slope
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Load capacitance range
Acquisition resolution
Description
V
DD
Min
Min
100
2.2
0
-0.7
Typ
Typ
600
6.5
13
80
17
45
3
4
9
Max
Max
100
0.8
0.6
±1
12
14
samples
seconds
counts
counts
Units
Units
V/s
bits
µA
µA
µA
pF
V
V
V
V
See Note 1
Notes
See Note 1
Notes
3V
2V
3V
5V
Required for proper start-up
SYNC pin
SYNC pin
OUT, 4 mA sink
OUT, 1 mA source
AT42QT100A
Section 2.1.2
13