MAX4780EUE MAXIM [Maxim Integrated Products], MAX4780EUE Datasheet - Page 8

• Manufacturer Part Number: MAX4780EUE
• Description: 0.7?, Low-Voltage, Quad 2:1 Analog Multiplexers
• Manufacturer: MAXIM [Maxim Integrated Products]

0.7 Ω Ω , Low-Voltage, Quad 2:1 Analog
Multiplexers
The MAX4780/MAX4784 logic inputs can be driven up
to +4.2V regardless of the supply voltage. For example,
with a +1.8V supply, A_ and EN may be driven low to
GND and high to +4.2V. Driving A_ and EN rail-to-rail
minimizes power consumption. Drive EN low to enable
the COM_ outputs. When EN is high, the COM_ outputs
are high impedance.
Analog signals that range over the entire supply voltage
(V+ to GND) can be passed with very little change in on-
Figure 1. Turn-On and Turn-Off Times
Figure 2. Break-Before-Make Interval
8
_______________________________________________________________________________________
*C
**MAX4784 ONLY.
*C
**MAX4784 ONLY.
L
L
INCLUDES STRAY CAPACITANCE.
INCLUDES STRAY CAPACITANCE.
V
A0
V
A0
A0
EN**
A0
EN**
MAX4780/
MAX4784
MAX4780/
MAX4784
GND
Analog Signal Levels
GND
V+
V+
V+
V+
NC, NO
COM
COM
NO
NC
Logic Inputs
R
L
R
L
V
V
N_ _
NO_
C
C
L
*
L
*
V
OUT
V
OUT
resistance (see the Typical Operating Characteristics ).
The switches are bidirectional, so the NO_, NC_, and
COM_ pins can be used as either inputs or outputs.
High-speed switches require proper layout and design
procedures for optimum performance. Reduce stray
inductance and capacitance by keeping traces short
and wide. Ensure that bypass capacitors are as close
to the device as possible. Use large ground planes
where possible.
V
V
V
OUT
IH
A0
V
V
IH
A0
+ 0.5V
V
+ 0.5V
COM
V
GND
Test Circuits/Timing Diagrams
0
OUT
0
0
t
OFF
50%
t
50%
BBM
90%
t
t
R
F
< 5ns
< 5ns
t
t
90%
R
F
< 5ns
< 5ns
t
ON
Layout