MAX4780 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX4780 Datasheet PDF : 11 Pages
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0.7Ω, Low-Voltage, Quad 2:1 Analog
Multiplexers
Test Circuits/Timing Diagrams (continued)
V+ OR GND
VEN
V+
V+
A0
NC, NO
MAX4780/
MAX4784
EN**
COM
GND
RGEN
VGEN
VOUT
CL*
*CL INCLUDES STRAY CAPACITANCE.
**MAX4784 ONLY.
Figure 3. Charge Injection
V+
VEN
0
VOUT
Δ VOUT
Δ VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE-
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = Δ VOUT ✕ CL
V+
V+ OR GND
V+
A0
NC, NO
MAX4780/
MAX4784
EN*
COM
GND
1MHz
CAPACITANCE
ANALYZER
Figure 4. Capacitance
*MAX4784 ONLY.
V+ 10nF
V+ OR GND
V+
A0
NC, NO
MAX4780/
MAX4784
EN*
COM
GND
NETWORK
ANALYZER
VIN
50Ω
50Ω
VOUT
MEAS
REF
50Ω 50Ω
OFF-ISOLATION = 20log
VOUT
VIN
ON-LOSS = 20log VOUT
VIN
CROSSTALK = 20log
VOUT
VIN
NOTES: MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT SOCKET TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
*MAX4784 ONLY.
Figure 5. Off-Isolation, On-Loss, and Crosstalk
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