DG401B_11 Datasheet, PDF (7/14 Pages) Vishay Siliconix – Low-Power, High-Speed CMOS Analog Switches

DG401B, DG403B, DG405B
Vishay Siliconix
TEST CIRCUITS
V_O is the steady state output with the switch on. Feedthrough via switch capacitance may result in spikes at the leading and
trailing edge of the output waveform.
± 10 V
+ 15 V
V+
S
D
3V
Logic
Input
0V
50 %
t_r < 20 ns
t_f < 20 ns
V_O
Switch
Input*
V_S
90 %
t_OFF
V_O
IN
GND
V-
- 15 V
R_L
1 kΩ
C_L
35 pF
Switch
0V
Output
t_ON
Switch
Input*
- V_S
V_O
90 %
C_L (includes fixture and stray capacitance)
V_O = V_S
R_L
R_L + R_DS(on)
* V_S = 10 V for t_ON, V_S = - 10 V for t_OFF
Note: Logic input waveform is inverted for switches that
have the opposite logic sense control
Figure 2. Switching Time
+ 15 V
V_S1
S₁
V_S2
S₂
IN
GND
V+
D₁
D₂
V-
V_O2
V_O1
R_L2
C_L2
R_{L1 CL1}
Logic
3V
Input
0V
V_S1
V_O1
Switch
0V
Output
V_S2
V_O2
Switch
0V
Output
- 15 V
C _L (includes fixture and stray capacitance)
Figure 3. Break-Before-Make
50 %
90 %
90 %
t_D
t_D
+ 15 V
R_g
S
V+
D
V_g
IN
3V
GND
V-
- 15 V
V_O
C_L
10 nF
V_O
IN
On
Figure 4. Charge Injection
ΔV_O
Off
On
Q = ΔV_O x C_L
Document Number: 73069
S11-0179-Rev. B, 07-Feb-11
www.vishay.com
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