QT140-DG Atmel, QT140-DG Datasheet - Page 10
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QT140-DG
Manufacturer Part Number
QT140-DG
Description
IC SENSOR 4KEY 5V 5MA SGL 28DIP
Manufacturer
Atmel
Series
QProx™, QTouch™r
Type
Capacitiver
Datasheet
1.QT140-D.pdf
(14 pages)
Specifications of QT140-DG
Touch Panel Interface
10, 2-Wire
Number Of Inputs/keys
4 Key
Resolution (bits)
10, 14 b
Voltage Reference
Internal
Voltage - Supply
3 V ~ 5.5 V
Current - Supply
2.5mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Output Type
*
Interface
*
Input Type
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
4.1 ABSOLUTE MAXIMUM SPECIFICATIONS
Operating temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as designated by suffix
Storage temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
V
Max continuous pin current, any control or drive pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Short circuit duration to ground, any pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Short circuit duration to V
Voltage forced onto any pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to (Vdd + 0.6) Volts
4.2 RECOMMENDED OPERATING CONDITIONS
V
Operating temperature range, 4.5V - 5.5V (QT140-AS, QT150-AS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 - +105C
Operating temperature range, 3.0V - 4.5V (QT140-AS, QT150-AS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 - +85C
Operating temperature range, all voltages (QT140-D, QT150-D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 - +70C
Operating frequency, 4.5V - 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20MHz
Operating frequency, 3.0V - 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10MHz
Short-term supply ripple+noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5mV/s
Long-term supply stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100mV
Cs value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1nF to 200nF
Cx value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 100pF
4.3 AC SPECIFICATIONS
4.4 DC SPECIFICATIONS
Vdd = 5.0V, Cs = 39nF, Cx = 5pF, Fosc = 10MHz, Ta = recommended range, unless otherwise noted
lQ
Parameter
Parameter
DD
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to +7.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.0 to 5.5V
T
V
V
T
T
T
N
V
V
T
T
BLMR
I
V
T
A
DDS
I
DD
RC
OH
PC
PT
AC
BL
HL
OL
IL
BL
IL
R
R
Charge duration
Transfer duration
Acquisition time, all channels
Burst duration, each channel
Burst length, each channel
Allowable burst duration range
Response time
Supply current
Supply turn-on slope
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Acquisition resolution
Recalibration time
Description
Description
DD
, any pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Vdd = 5.0, Ta = recommended, Cx = 5pF, Cs = 39nF, Fosc = 10MHz
Vdd-0.7
Min
100
Min
2
0.1
Typ
1,000
2.5
10
Typ
1.2
1.6
33
99
3
10
Max
0.7
0.6
Max
±1
14
330
8
5.5
Units
counts
Units
mA
V/s
bits
µA
V
V
V
V
ms
ms
ms
ms
ms
µs
µs
Req’d for startup, w/o reset circuit
OPT1, OPT2, OC, AKS, SYNC
OPT1, OPT2 , OC, AKS, SYNC
OUTn, SYNC, @ 4mA sink
OUTn, 1mA source
OPT1, OPT2, OC, AKS
Before all timings degrade
Including detection integrator
QT140/150 1.01/1102
Notes
Notes
O
C to +125
O
C