QT310-D ETC, QT310-D Datasheet - Page 16

• Manufacturer Part Number: QT310-D
• Description: PROGRAMMABLE CAPACITANCE SENSOR IC
• Manufacturer: ETC

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 5-2 Typical sensitivity vs Cx;
0
2
Threshold = 6, Vdd = 3.0 Volts
Figure 5-4 Tsc vs Vdd; SC = 1
10
2.5
Power Supply (Volts)
20
3
Cx Load
3.5
QT310/R1.03 21.09.03
30
4
40
4.5
50
5
4.7nF
9nF
19nF
43nF
74nF
124nF
200nF
5.5