DG3157A Datasheet, PDF (6/7 Pages) Vishay Siliconix – Low Voltage, 300-MHz - 3 dB Bandwidth, SPDT Analog Switch with Power Down Protection (2:1 Multiplexer/Demultiplexer Bus Switch)

DG3157A, DG3157B
Vishay Siliconix
TEST CIRCUITS
V+
B₁
B₁
B₀
B₀
S
V+
A
GND
R_L
50 Ω
V_O
C_L
35 pF
Logic
Input
V_SH
V_SL
VB_{0 =} VB₁
V_O
Switch _{0 V}
Output
90 %
t_D
t_r < 5 ns
t_f < 5 ns
t_D
C_L (includes fixture and stray capacitance)
Figure 4. Break-Before-Make Interval
V+
V_gen
R_gen
+
V_S = 0 - V+
V+
B₀ or B₁
S
GND
OUT
A
V_A
V_OUT
C_L = 1 nF
S
On
Off
On
Q = _OUT x C_L
Figure 5. Charge Injection
IN depends on switch configuration: input polarity
determined by sense of switch.
V+
10 nF
V+
B₀ or B₁
A
R_L
GND
Analyzer
V_A
Off Isolation = 20 log _VB0/B1
Figure 6. Off-Isolation
S ^{0 V, 2.4 V}
V+
10 nF
V+
A
S
0 V, 2.4 V
B₀ or B₁
GND
Meter
HP4192A
Impedance
Analyzer
or Equivalent
f = 1 MHz
Figure 7. Channel Off/On Capacitance
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Tech-
nology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability
data, see http://www.vishay.com/ppg?68628.
www.vishay.com
6
Document Number: 68628
S-81944-Rev. C, 25-Aug-08