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MC74HCT4052A Datasheet(PDF) 11 Page - ON Semiconductor

Part No. MC74HCT4052A
Description  Analog Multiplexers / Demultiplexers with LSTTL Compatible Inputs
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC74HCT4052A Datasheet(HTML) 11 Page - ON Semiconductor

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MC74HCT4051A, MC74HCT4052A, MC74HCT4053A
http://onsemi.com
11
RL
Figure 18. Crosstalk Between Any Two
Switches, Test Set−Up
Figure 19. Power Dissipation Capacitance,
Test Set−Up
Figure 20a. Total Harmonic Distortion, Test Set−Up
Figure 20b. Plot, Harmonic Distortion
0
-10
-20
-30
-40
-50
- 100
1.0
2.0
3.125
FREQUENCY (kHz)
-60
-70
-80
-90
FUNDAMENTAL FREQUENCY
DEVICE
SOURCE
ON
6
7
8
16
VEE
CL*
*Includes all probe and jig capacitance
OFF
RL
RL
VIS
RL
CL*
VOS
fin
0.1
mF
ON/OFF
6
7
8
16
VCC
CHANNEL SELECT
NC
COMMON O/I
OFF/ON
ANALOG I/O
VCC
A
11
VCC
VEE
ON
6
7
8
16
VCC
VEE
0.1
mF
CL*
fin
RL
TO
DISTORTION
METER
*Includes all probe and jig capacitance
VOS
VIS
Figure 20.
APPLICATIONS INFORMATION
The maximum analog voltage swings are determined by
the supply voltages VCC and VEE. The positive peak analog
voltage should not exceed VCC. Similarly, the negative peak
analog voltage should not go below VEE. In this example,
the difference between VCC and VEE is ten volts. Therefore,
using the configuration of Figure 21, a maximum analog
signal of ten volts peak−to−peak can be controlled. Unused
analog inputs/outputs may be left floating (i.e., not
connected). However, tying unused analog inputs and
outputs to VCC or GND through a low value resistor helps
minimize crosstalk and feed−through noise that may be
picked up by an unused switch.
Although used here, balanced supplies are not a
requirement. The only constraints on the power supplies are
that:
VCC − GND = 2 to 6 V
VEE − GND = 0 to −6 V
VCC − VEE = 2 to 12 V
and VEE ≤ GND
When voltage transients above VCC and/or below VEE are
anticipated on the analog channels, external Germanium or
Schottky diodes (Dx) are recommended as shown in
Figure 22. These diodes should be able to absorb the
maximum anticipated current surges during clipping.


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