DG2537 Datasheet, PDF (7/9 Pages) Vishay Siliconix – 4ohm Dual SPST Switches

TEST CIRCUITS
DG2537, DG2538, DG2539
Vishay Siliconix
+ 2.5 V
V_S = 2 V
V_IN = 2 V
V+
S
D
IN
GND
V-
V_O
R_L
300 
C_L
35 pF
- 2.5 V
V_O = V_S
R_L
R_L + R_DS(on)
2V
Logic
Input
0V
Switch
Input
V_S
Switch
Output
V_O
Figure 2. Dual Supply Switching Time
50 %
t_r < 20 ns
t_f < 20 ns
t_OFF
90 %
t_ON
+5V
V+
R_g
S
D
V_g
IN
3V
GND
V-
0V
V_O
C_L
1000 pF
V_O
V_O
IN_X ON
OFF
ON
V_O = measured voltage error due to charge injection
The charge injection in coulombs is Q = C_L x V_O
Figure 3. Charge Injection
+5V
C
V+
V_S
S
D
V_O
R_g = 50 
V_IN = 0 V/3 V
IN
GND
R_L
V-
C
0V
V_S
Off Isolation = 20 log
V_O
Figure 4. Off-Isolation
10 nF
V+
5V
V+
COM
IN
0 V, 2.4 V
NC or NO
GND
0 V V-
Meter
HP4192A
Impedance
Analyzer
or Equivalent
f = 1 MHz
10 nF
Figure 5. Channel Off/On Capacitance
Document Number: 63370
www.vishay.com
S11-1551-Rev. A, 01-Aug-11
7
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