DG448(2006) データシートの表示（PDF） - Vishay Semiconductors
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DG448 Datasheet PDF : 9 Pages
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DG447/448
Vishay Siliconix
TYPICAL CHARACTERISTICS TA = 25 °C, unless otherwise noted
15
2.5
10
± 15 V Power supply
5
CL = 1 nF
0
-5
- 10
12 V Power supply
CL = 1 nF
- 15
- 20
- 25
- 30
- 35
- 40
- 15 - 10
-5
0
5
10
15
VCOM (V)
Charge Injection vs. Analog Voltage
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
5
10
15
20
25
30
V+ (V)
Input Switching Threshold vs. Supply Voltage
TEST CIRCUITS
VO is the steady state output with the switch on.
10 V
NO/NC
IN
GND
+ 15 V
V+
COM
V-
RL
300 Ω
VO
CL
35 pF
Logic
3V
Input
0V
50 %
Switch
VS
Input
VO
90 %
tr < 20 ns
tf < 20 ns
tOFF
- 15 V
Switch
0V
Output
tON
CL (includes fixture and stray capacitance)
VO = VS
RL
RL + rON
Note: Logic input waveform is inverted for switches that have the
opposite logic sense.
Figure 1. Switching Time
Rg
V gen
3V
COM
IN
GND
+ 15 V
V+
NO/NC
V-
- 15 V
VO
CL
1 nF
VO
INX
OFF
Figure 2. Charge Injection
ΔV
ON
Q = ΔVO x CL
OFF
Document Number: 73854
S-62352–Rev. B, 20-Nov-06
www.vishay.com
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