DG4157 Datasheet, PDF (6/8 Pages) Vishay Siliconix – Low Voltage, 1-Ω Single SPDT Analog Switch (1:2 Multiplexer) with Power Down Protection

DG4157
Vishay Siliconix
TEST CIRCUITS
Switch
Input
Logic
Input
V+
V+
B₁ or B₀
A
Switch Output
V_OUT
S
GND
R_L
50 Ω
C_L
35 pF
0V
Logic
Input
V_INH
V_INL
Switch
Output
0V
C_L (includes fixture and stray capacitance)
V_OUT =
V_A
R_L
R_L + R_ON
Figure 1. Switching Time
50 %
t_ON
t_r < 5 ns
t_f < 5 ns
0.9 x V_OUT
t_OFF
B₁
B₁
B₀
B₀
S
V+
V+
A
GND
R_L
50 Ω
V_O
C_L
35 pF
Logic
Input
V_INH
V_INL
B₀ = B₁
V_O
Switch _{0 V}
Output
90 %
t_D
C_L (includes fixture and stray capacitance)
Figure 2. Break-Before-Make Interval
t_r < 5 ns
t_f < 5 ns
t_D
R_gen
A
+
V_gen
S
V+
V+
B₀ or B₁
GND
V_OUT
C_L
V_OUT
ΔV_OUT
S
On
Off
On
Q = ΔV_OUT x C_L
Figure 3. Charge Injection
S depends on switch configuration: input polarity
determined by sense of switch.
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Document Number: 68800
S-82827-Rev. C, 24-Nov-08