QT110-DG Atmel, QT110-DG Datasheet - Page 8

• Manufacturer Part Number: QT110-DG
• Description: IC SENSOR TOUCH/PROX 1CHAN 8DIP
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of QT110-DG

• Touch Panel Interface: 1, 2-Wire
• Number Of Inputs/keys: 1 Key
• Resolution (bits): 14 b
• Data Interface: Serial
• Voltage Reference: Internal
• Voltage - Supply: 2.5V, 3.3V, 5V
• Current - Supply: 26µA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP
• Output Type: Logic
• Interface: 2-Wire
• Input Type: Logic
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 427-1091

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
Supply ripple+noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mV p-p max
Max Cx load capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20pF
Cs value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10nF ~ 22nF
Rs value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470K 5%
4.3 AC SPECIFICATIONS
Vdd = 3.0, Cs = 10nF, Rs = 470K, Cx = 10pF, Ta = 20
4.4 SIGNAL PROCESSING
Vdd = 3.0, Cs = 10nF, Rs = 470K, Cx = 10pF, Ta = 20
Note 1: Of absolute full scale signal
Note 2: Of signal threshold
Note 3: Strap option.
LQ
Parameter
Description
Threshold differential, high gain
Threshold differential, medium gain
Threshold differential, low gain
Hysteresis
Consensus filter length
Positive drift compensation rate
Negative drift compensation rate
Post-detection recalibration timer duration
DD
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to +6.5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5 to 5.5V
T
T
T
T
T
T
F
T
F
T
RC
PO
BS
BL
HB
Q
R
P
P
Q
Recalibration time
Charge, transfer duration
Burst spacing interval
Burst length
Response time
Piezo drive frequency
Piezo drive duration
Pulse output width on Out
Heartbeat pulse width
Burst frequency
Description
DD
, any pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Min
0.5
3.6
O
O
C , unless otherwise noted.
C , unless otherwise noted.
Typ
550
129
300
165
75
95
75
75
Min
2
4
10
8
Typ
6.25
750
Max
3.1
4.7
50
75
4.4
4
7
Max
60
Units
kHz
kHz
ms
ms
ms
ms
ms
ms
ms
µs
µs
@ 5.0V Vdd
@ 3.3V Vdd
samples
ms/level
ms/level
Units
secs
%
%
%
%
Note 1
Note 1
Note 1
Note 2
Note 3
QT110 R1.04/0405
Notes
Notes
O
C to +125
X7R ceramic
O
C