MC74LVX4066_11 Datasheet, PDF (9/13 Pages) ON Semiconductor – Quad Analog Switch/Multiplexer/Demultiplexer

MC74LVX4066
0
- 10
FUNDAMENTAL FREQUENCY
- 20
- 30
- 40
- 50
DEVICE
- 60
SOURCE
- 70
- 80
- 90
1.0
2.0
3.0
FREQUENCY (kHz)
Figure 15. Plot, Harmonic Distortion
APPLICATION INFORMATION
The ON/OFF Control pins should be at V_CC or GND logic
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 maximum analog voltage swings are determined by
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.
Therefore, using the configuration in Figure 16, a maximum
analog signal of six volts peak−to−peak can be controlled.
When voltage transients above V_CC and/or below GND
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™ is an acronym for high current surge
protectors). Mosorbs are fast turn−on devices ideally suited
for precise DC protection with no inherent wear out
mechanism.
+ 6.0 V
0V
ANALOG I/O
V_CC = 6.0 V
14
ANALOG O/I
ON
+ 6.0 V
0V
SELECTED
CONTROL
INPUT
7
OTHER CONTROL
INPUTS
(V_CC OR GND)
V_CC
D_x
D_x
V_CC
16
D_x
ON
D_x
V_CC
SELECTED
CONTROL
INPUT
OTHER CONTROL
INPUTS
7
(V_CC OR GND)
Figure 16. 6.0 V Application
Figure 17. Transient Suppressor Application
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