DG2517_08 Datasheet, PDF (6/8 Pages) Vishay Siliconix – 3-Ω, High Bandwidth, Dual SPDT Analog Switch

DG2517, DG2518
Vishay Siliconix
TEST CIRCUITS
Switch
Input
Logic
Input
V+
V+
NO or NC
COM
IN
GND
0V
Switch Output
V_OUT
R_L
300 Ω
C_L
35 pF
C_L (includes fixture and stray capacitance)
V_OUT
V_COM
R_L
R_L R_ON
Logic
Input
V_INH
V_INL
50 %
t_r < 5 ns
t_f < 5 ns
Switch
Output
0V
t_ON
0.9 x V_OUT
t_OFF
Logic “1” = Switch On
Logic input waveforms inverted for switches that have
the opposite logic sense.
Figure 1. Switching Time
V+
V+
NO
V_NO
COM
NC
V_NC
IN
GND
R_L
300 Ω
V_O
C_L
35 pF
Logic _VINH
Input
V_INL
V_NC = V_NO
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
V+
V_gen
R_gen
+
V_IN = 0 - V+
V+
NC or NO
IN
GND
COM
V_OUT
V_OUT
ΔV_OUT
C_L = 1 nF
IN
On
Off
On
Q = ΔV_OUT x C_L
IN depends on switch configuration: input polarity
determined by sense of switch.
Figure 3. Charge Injection
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Document Number: 74333
S-82589-Rev. B, 27-Oct-08