MC74LVX4052_14 datasheet(11/14 Pages) ONSEMI

Teilenummer	MC74LVX4052

Bauteilbeschribung	Analog Multiplexer/ Demultiplexer

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Hersteller	ONSEMI [ON Semiconductor]

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MC74LVX4052

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11

APPLICATIONS INFORMATION

The Channel Select and Enable control pins should be at

VCC or GND logic levels. VCC being recognized as a logic

high and GND being recognized as a logic low. In this

example:

VCC =

)5 V = logic high

GND = 0 V = logic low

The maximum analog voltage swing is 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 5.0 volts. Therefore,

using the configuration of Figure 20, a maximum analog

signal of 5.0 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 feedthrough 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:

VEE − GND = 0 to

*6 volts

VCC − GND = 2.5 to 6 volts

VCC − VEE = 2.5 to 6 volts

and VEE

v 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 21. These diodes should be able to absorb the

maximum anticipated current surges during clipping.

ANALOG

SIGNAL

Figure 19. Application Example

ON

6

7

8

16

+3.0 V

ANALOG

SIGNAL

+3.0 V

−3.0 V

+3.0 V

−3.0 V

11

10

9

TO EXTERNAL CMOS

CIRCUITRY 0 to 3.0 V

DIGITAL SIGNALS

−3.0 V

Figure 20. Application Example

ANALOG

SIGNAL

ON

6

7

8

16

+5 V

ANALOG

SIGNAL

+5 V

GND

+5 V

GND

11

10

9

TO EXTERNAL CMOS

CIRCUITRY 0 to 5 V

DIGITAL SIGNALS

ON/OFF

7

8

16

VCC

VEE

Dx

VCC

Dx

VEE

Dx

VCC

Dx

VEE

Figure 21. External Germanium or Schottky Clipping Diodes

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Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
ON Semiconductor	MC74LVXT8053	243Kb / 12P	Analog Multiplexer/Demultiplexer March, 2000 ??Rev. 2
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System Logic Semiconduc...	SL74HC4053	87Kb / 8P	Analog Multiplexer/Demultiplexer
ON Semiconductor	MC74LVXT4052	142Kb / 16P	Analog Multiplexer Demultiplexer January, 2002 ??Rev. 3
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	MC74LVXT8051	185Kb / 13P	Analog Multiplexer/Demultiplexer May, 2011 ??Rev. 4

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