DG2788A Datasheet, PDF (7/10 Pages) Vishay Siliconix – Low Capacitance, Dual DPDT / Quad SPDT Analog Switch

www.vishay.com
TEST CIRCUITS
DG2788A
Vishay Siliconix
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
Fig. 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 _VINH
Input
V_INL
V_NC = V_NO
V_O
Switch _{0 V}
Output
90 %
t_D
C_L (includes fixture and stray capacitance)
Fig. 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
Δ V_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.
Fig. 3 - Charge Injection
S16-1836-Rev. B, 12-Sep-16
7
Document Number: 79391
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000