QT310-IS Atmel, QT310-IS Datasheet - Page 16

• Manufacturer Part Number: QT310-IS
• Description: SENSOR IC TOUCH PROG 1CH 8-SOIC
• Manufacturer: Atmel
• Series: QProx™r
• Type: Capacitiver

Specifications of QT310-IS

• Rohs Status: RoHS non-compliant
• Touch Panel Interface: 1, 2-Wire
• Number Of Inputs/keys: 1 Key
• Resolution (bits): 16 b
• Data Interface: Serial
• Voltage Reference: Internal
• Voltage - Supply: 1.8 V ~ 5 V
• Current - Supply: 600µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Output Type: *
• Interface: *
• Input Type: *
• Package / Case: -
• Other names: 427-1028

LQ
25.000
20.000
15.000
10.000
10.00
5.000
Figure 5-3 Typical Burst length vs Cx, Cs;
1.00
0.10
0.01
0.000
Figure 5-1 Typical sensitivity vs Cx;
0
Sampling Capacitor (nF)
Threshold = 16, Vdd = 3.0 Volts
52
118 228
10
Vdd = 3.0 Volts
20
Cx Load
507
884 1450
30
40
2357
50
Cx = 48pF
Cx = 21pF
Load (pf)
Cx = 0pF
4.7nF
9nF
19nF
43nF
74nF
124nF
200nF
16
180
160
140
120
100
80
60
40
20
0
1.5
10.00
1.00
0.10
0.01
Figure 5-4 Typical Burst spacing vs Vdd;
Figure 5-2 Typical sensitivity vs Cx;
0
2
Threshold = 6, Vdd = 3.0 Volts
10
SC = 1 and Tbd < 10ms
2.5
Power Supply (Volts)
20
3
Cx Load
3.5
30
QT310/R1.01 07/02
4
40
4.5
50
5
4.7nF
9nF
19nF
43nF
74nF
124nF
200nF
5.5