QT240-ISS Atmel, QT240-ISS Datasheet - Page 9

• Manufacturer Part Number: QT240-ISS
• Description: IC SENSOR 4CHAN QTOUCH 20SSOP
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of QT240-ISS

• Touch Panel Interface: 4, 2-Wire
• Number Of Inputs/keys: 4 Key
• Resolution (bits): 9 b
• Voltage Reference: Internal
• Voltage - Supply: 3.9 V ~ 5 V
• Current - Supply: 1.5mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Output Type: *
• Interface: *
• Input Type: *
• For Use With: 427-1113 - BOARD EVAL FOR QT240-IS QTOUCH
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 427-1074

4.5 SIGNAL PROCESSING
Vdd = 4.0V, Cx = 10pF, Cs = 10nF, Fosc = 100kHz, Ta = recommended range, unless otherwise noted
5 - PACKAGE OUTLINE
6 - ORDERING INFORMATION
lQ
Description
Threshold differential (positive)
Hysteresis
Fast negative threshold differential
Consensus filter length (Detection integrator)
Positive drift compensation rate
Negative drift compensation rate
Fast negative recalibration timer duration
Post-detection recalibration timer duration
SYMBOL
QT240-ISS-G
C’
G
A
B
C
D
E
H
F
#
QT240-ISS
PART
Seating level
TEMP RANGE
291.0
196.0
271.0
65.0
26.0
Min
9.0
4.0
4.0
0º
-
-40 - 85C
-40 - 85C
F
C
D
Inches (mils)
209 mil 20-pin SSOP Dimensions
10, 60, infinite
E
25.0
Typ
Value
1,000
C'
250
12
2
5
6
2
PACKAGE
SSOP-20
SSOP-20
9
323.0
220.0
295.0
Max
15.0
73.0
10.0
34.0
8.0
samples
8º
ms/level
ms/level
-
counts
counts
counts
Units
B
secs
secs
A
Base level
From signal reference
From threshold
Nominal timing dependent on Fosc, Sync
Nominal timing dependent on Fosc, Sync
Nominal timing dependent on Fosc, Sync
Option pin selected;
Nominal timings; dependent on Fosc, Sync
MARKING
QT240-IG
QT240-I
7.39
4.98
0.23
6.88
1.65
0.10
0.66
0.10
Min
0º
-
ø
Metric (mm)
G
0.635
LEAD-FREE
Notes
Typ
Yes
QT240 1.07/0804
No
H
Max
8.20
5.59
0.38
7.49
1.85
0.25
0.86
0.20
8º
-