DG2520 Datasheet, PDF (6/8 Pages) Vishay Siliconix – Sub-Ω, Low Voltage, SPDT Analog Switches with Over Current Protection

DG2520/DG2521
Vishay Siliconix
TYPICAL CHARACTERISTICS T_A = 25 °C, unless otherwise noted
250
200
150
V+ = 5 V
100
50
0
V+ = 3 V
- 50
- 100
- 150
- 200
0
1
2
3
4
5
V_com - Analog Voltage (V)
Charge Injection vs. Analog Voltage, DG2520
150
V+ = 4.5 V
100
50
V+ = 2.7 V
0
- 50
- 100
0
1
2
3
4
5
V_com - Analog Voltage (V)
Charge Injection vs. Analog Voltage, DG2521
TEST CIRCUITS
Switch
Input
Logic
Input
V+
V+
NO or NC
COM
IN
GND
0V
Switch Output
V_OUT
R_L
50 Ω
C_L
35 pF
Logic
Input
Switch
Output
C_L (includes fixture and stray capacitance)
V_OUT
V_COM
R_L
R_L R_ON
Figure 1. Switching Time
V_INH
V_INL
50 %
t_r 5 ns
t_f 5 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.
V+
V_NO
V_NC
V+
NO
COM
NC
IN
GND
R_L
50 Ω
V_O
C_L
35 pF
Logic
Input
V_INH
V_INL
V_NC = V_NO
V_O
Switch _{0 V}
Output
90 %
t_D
t_r < 5 ns
t_f < 5 ns
t_D
C_L (includes fixture and stray capacitance)
Figure 2. Break-Before-Make Interval
www.vishay.com
6
Document Number: 73898
S-61478–Rev. A, 07-Aug-06