MC74LVX4066D ONSEMI [ON Semiconductor], MC74LVX4066D Datasheet - Page 8

• Manufacturer Part Number: MC74LVX4066D
• Description: Quad Analog Switch/Multiplexer/Demultiplexer
• Manufacturer: ONSEMI [ON Semiconductor]

levels, V CC being recognized as logic high and GND being
recognized as a logic low. Unused analog inputs/outputs
may be left floating (not connected). However, it is
advisable to tie unused analog inputs and outputs to V CC or
GND through a low value resistor. This minimizes crosstalk
and feedthrough noise that may be picked–up by the unused
I/O pins.
the supply voltages V CC and GND. The positive peak analog
voltage should not exceed V CC . Similarly, the negative peak
analog voltage should not go below GND. In the example
below, the difference between V CC and GND is six volts.
+ 6.0 V
The ON/OFF Control pins should be at V CC or GND logic
The maximum analog voltage swings are determined by
0 V
Figure 16. 6.0 V Application
ANALOG I/O
SELECTED
CONTROL
INPUT
7
ON
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
14
0
ANALOG O/I
V CC = 6.0 V
1.0
Figure 15. Plot, Harmonic Distortion
APPLICATION INFORMATION
OTHER CONTROL
(V CC OR GND)
FUNDAMENTAL FREQUENCY
INPUTS
http://onsemi.com
MC74LVX4066
+ 6.0 V
0 V
FREQUENCY (kHz)
8
2.0
Therefore, using the configuration in Figure 16, a maximum
analog signal of six volts peak–to–peak can be controlled.
are anticipated on the analog channels, external diodes (Dx)
are recommended as shown in Figure 17. These diodes
should be small signal, fast turn–on types able to absorb the
maximum anticipated current surges during clipping. An
alternate method would be to replace the Dx diodes with
Mosorbs (Mosorb
protectors). Mosorbs are fast turn–on devices ideally suited
for precise DC protection with no inherent wear out
mechanism.
When voltage transients above V CC and/or below GND
DEVICE
SOURCE
Figure 17. Transient Suppressor Application
V CC
D x
D x
is an acronym for high current surge
V CC
3.0
SELECTED
CONTROL
INPUT
7
ON
16
V CC
OTHER CONTROL
(V CC OR GND)
INPUTS
D x
D x