DG2020 Datasheet, PDF (5/6 Pages) Vishay Siliconix – Low-Voltage Single Asymmetrical SPDT Analog Switch

New Product
DG2020
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Switching Time vs.
Temperature and Supply Voltage
6
NC Switch
5
t_ON V+ = 3 V
4
3
2
t_OFF V+ = 3 V
1
t_ON V+ = 5 V
t_OFF V+ = 5 V
0
–60 –40 –20 0
20 40 60 80 100
V_COM – Analog Voltage (V)
Switching Threshold vs. Supply Voltage
2.5
2.0
1.5
Insertion Loss, Off-Isolation
Crosstalk vs. Frequency
10
LOSS
–10
–30
–50
OIRR
–70
V+ = 3 V
R_L = 50 W
X_TALK
–90
100 K
1M
10 M
100 M
1G
Frequency (Hz)
Charge Injection vs. Analog Voltage
20
NO Switch
10
0
–10
1.0
–20
V+ = 5 V
V+ = 3 V
–30
0.5
–40
0.0
0
1
2
3
4
5
6
V+ – Supply Voltage (V)
–50
0
1
2
3
4
5
6
V_COM – Analog Voltage (V)
TEST CIRCUITS
V+
Switch
Input
Logic
Input
V+
NO or NC
COM
IN
GND
0V
Switch Output
V_OUT
R_L
300 W
C_L
35 pF
Logic
Input
Switch
Output
C_L (includes fixture and stray capacitance)
ǒ Ǔ V_OUT + V_COM
R_L
R_L ) R_ON
FIGURE 1. Switching Time
V_INH
V_INL
50%
t_r t 20 ns
t_f t 20 ns
0.9 x V_OUT
0V
t_ON
t_OFF
Logic “1” = Switch On
Logic input waveforms inverted for switches that have
the opposite logic sense.
Document Number: 71676
S-04456—Rev. A, 03-Aug-01
www.vishay.com
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