SGM84782_15 Datasheet, PDF (7/11 Pages) SG Micro Corp – Low Voltage Analog Switch/Multiplexer

SGM84782
TEST CIRCUITS (Cont.)
4Ω, High Speed, Low Voltage
Analog Switch/Multiplexer
V_A,V_B
V₊
A
V₊
B
X0-X3
Y0-Y3
V₊
ENABLE
GND
X,Y
50Ω
V_OUT
35pF
V₊
V_A,V_B
0
V_X,V_Y
V_OUT
0
50%
t_D
Test Circuit 4. Break-Before-Make Interval (tD)
t_R<5ns
t_F<5ns
90%
CHANNEL ^A
SELECT
B
V₊
V_{+ X_,Y_}
V_{ENABLE ENABLE}
GND ^X,Y
V_OUT
C_L
1000pF
V₊
V_ENABLE
0
V_OUT
Q = ? V_OUT × C_L
ΔV_OUT
Test Circuit 5. Charge Injection (Q)
CHANNEL ^A
SELECT
B
V₊ 10nF
V_{+ X_,Y_}
ENABLE
GND ^X,Y
V_IN
V_OUT
NETWORK
ANALYZER
50Ω 50Ω
MEAS. REF.
50Ω 50Ω
OFF-ISOLATION = 20log ^VOUT
V_IN
CROSSTALK
=
20log
V_OUT
V_IN
Test Circuit 6. -3dB Bandwidth, Off-Isolation and Crosstalk
7
SG Micro Corp
www.sg-micro.com