MAX14778_12 Datasheet, PDF (6/15 Pages) Maxim Integrated Products – Dual ±25V Above- and Below-the-Rails 4:1 Analog Multiplexer

MAX14778
Dual ±25V Above- and Below-the-Rails
4:1 Analog Multiplexer
Test Circuits/Timing Diagrams (continued)
LOGIC
INPUT
Figure 5. Charge Injection
+5V
A_
VDD
B_
MAX14778
ENA
ACOM
ENB
BCOM
GND
VOUT
C_L = 1nF
+5V
LOGIC
OFF
ON
OFF
INPUT
0V
V_OUT
DVOUT
Q = CL x DVOUT
V_DD
0V OR VDD _ENA
V_IN
A0
SA_ _MAX14778
50I
VOUT
ACOM
NETWORK
ANALYZER
50I
50I
MEAS
50I
REF
50I
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN ACOM AND "OFF" A_ TERMINAL ON EACH MULTIPLEXER.
-3dBW IS MEASURED BETWEEN ACOM AND "ON" A_ TERMINAL ON EACH MULTIPLEXER.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH MULTIPLEXER IS REVERSED; WORST VALUES ARE RECORDED.
Figure 6. Off-Isolation, -3dB Bandwidth, and Crosstalk
OFF-ISOLATION = 20log ^VOUT
V_IN
ON-LOSS = 20log ^VOUT
V_IN
CROSSTALK = 20log ^VOUT
V_IN
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