DG3157 Datasheet, PDF (6/6 Pages) Vishay Siliconix – High-Speed, Low rON, SPDT Analog Switch (2:1 Multiplexer/Demultiplexer Bus Switch)

DG3157
Vishay Siliconix
New Product
TEST CIRCUITS
V+
V+
NO
V_NO
COM
NC
V_NC
IN
GND
R_L
50 W
V_O
C_L
35 pF
Logic
Input
V_IN
H
V_INL
V_NC = V_NO
V_O
Switch _{0 V}
Output
90%
t_D
C_L (includes fixture and stray capacitance)
Figure 4. 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
DV_OUT
C_L = 1 nF
IN
On
Off
On
Q = DV_OUT x C_L
Figure 5. Charge Injection
IN depends on switch configuration: input polarity
determined by sense of switch.
V+
10 nF
V+
NC or NO
IN
COM _COM
R_L
GND
Analyzer
V_COM
Off Isolation + 20 log _VNOńNC
Figure 6. Off-Isolation
www.vishay.com
6
V+
10 nF
0V, 2.4 V
0 V, 2.4 V
V+
COM
IN
NC or NO
GND
Meter
HP4192A
Impedance
Analyzer
or Equivalent
f = 1 MHz
Figure 7. Channel Off/On Capacitance
Document Number: 72648
S-32552—Rev. A, 15-Dec-03