DG2522 Datasheet, PDF (6/8 Pages) Vishay Siliconix – Low Voltage, Fault Protection, SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)

DG2522
Vishay Siliconix
TEST CIRCUITS
Switch
Input
Logic
Input
V+
V+
S_X
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.
50 Ω
V⁺
V⁺
V⁺
IN₁
S₀
V_S
S₁
S₂
IN₂
GND
COM
50 Ω
V_O
35 pF
V_CC
V_IN1
0V
50 %
V_S
V_O
0V
t _BBM
Figure 2. Break-Before-Make (DG2749)
90 %
t_r < 5 ns
t_f < 5 ns
R_g
S_X
V_g
V_IN = 0 - V+ IN
GND
V+
V+
COM
V_O
C_L
1 nF
V_O
IN_X
OFF
OFF
IN_X
ΔV_O
ON
OFF
ON
Q = ΔV_O x C_L
OFF
Figure 3. Charge Injection
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Document Number: 68831
S-82389-Rev. A, 29-Sep-08