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Número de pieza | MC74LVX4051 | |
Descripción | Analog Multiplexer/ Demultiplexer | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
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No Preview Available ! MC74LVX4051
Analog Multiplexer/
Demultiplexer
High−Performance Silicon−Gate CMOS
The MC74LVX4051 utilizes silicon−gate CMOS technology to
achieve fast propagation delays, low ON resistances, and low leakage
currents. This analog multiplexer/demultiplexer controls analog
voltages that may vary across the complete power supply range (from
VCC to VEE).
The LVX4051 is similar in pinout to the LVX8051, the HC4051A,
and the metal−gate MC14051B. The Channel−Select inputs determine
which one of the Analog Inputs/Outputs is to be connected, by means
of an analog switch, to the Common Output/Input. When the Enable
pin is HIGH, all analog switches are turned off.
The Channel−Select and Enable inputs are compatible with standard
CMOS outputs. These inputs are overvoltage tolerant (OVT) for level
translation from 6.0 V down to 3.0 V.
This device has been designed so the ON resistance (RON) is more
linear over input voltage than the RON of metal−gate CMOS analog
switches and High−Speed CMOS analog switches.
Features
• Fast Switching and Propagation Speeds
• Low Crosstalk Between Switches
• Analog Power Supply Range (VCC − VEE) = *3.0 V to )3.0 V
• Digital (Control) Power Supply Range (VCC − GND) = 2.5 to 6.0 V
• Improved Linearity and Lower ON Resistance Than Metal−Gate,
HSL, or VHC Counterparts
• Low Noise
• Designed to Operate on a Single Supply with VEE = GND,
or Using Split Supplies up to ±3.0 V
• Break−Before−Make Circuitry
• These Devices are Pb−Free and are RoHS Compliant
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1
QFN16
MN SUFFIX
CASE 485AW
SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
MARKING DIAGRAMS
4051
ALYWG
G
QFN16
16
LVX4051G
AWLYWW
1
SOIC−16
16
LVX
4051
ALYWG
G
1
TSSOP−16
LVX4051 = Specific Device Code
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
August, 2014 − Rev. 9
1
Publication Order Number:
MC74LVX4051/D
1 page MC74LVX4051
AC CHARACTERISTICS (CL = 50 pF, Input tr = tf = 3 ns)
Guaranteed Limit
Symbol
Parameter
VCC
V
VEE
V
−55 to 25°C
Min Typ Max
≤85°C
Min Max
tPLH,
tPHL
Maximum Propagation Delay,
Channel−Select to Analog
Output
(Figures 16 and 17)
2.5 0
3.0 0
4.5 0
3.0 −3.0
40 45
28 30
23 25
23 25
tPLZ,
tPHZ
Maximum Propagation Delay,
Enable to Analog Output (Fig-
ures 14 and 15)
2.5 0
3.0 0
4.5 0
3.0 −3.0
40 45
28 30
23 25
23 25
tPZL,
tPZH
Maximum Propagation Delay,
Enable to Analog Output (Fig-
ures 14 and 15)
2.5 0
3.0 0
4.5 0
3.0 −3.0
40 45
28 30
23 25
23 25
≤125°C
Min Max
50
35
30
28
50
35
30
28
50
35
30
28
Unit
ns
ns
ns
Typical @ 25°C, VCC = 5.0 V, VEE = 0 V
CPD Power Dissipation Capacitance (Figure 18) (Note 6)
45
CIN Maximum Input Capacitance, Channel−Select or Enable Inputs
10
CI/O Maximum Capacitance
(All Switches Off)
Analog I/O
Common O/I
Feedthrough
10
10
1.0
6. Used to determine the no−load dynamic power consumption: PD = CPD VCC2f + ICC VCC.
pF
pF
pF
ADDITIONAL APPLICATION CHARACTERISTICS (GND = 0 V)
Symbol
Parameter
BW Maximum On−Channel Bandwidth or
Minimum Frequency Response
Condition
VIS = ½ (VCC − VEE)
Ref and Test Attn = 10 dB
Source Amplitude = 0 dB
(Figure 7)
VISO Off−Channel Feedthrough Isolation
f = 1 MHz; VIS = ½ (VCC − VEE)
Adjust Network Analyzer output to 10 dBm on
each output from the power splitter
(Figures 8 and 9)
VONL Maximum Feedthrough On Loss
VIS = ½ (VCC − VEE)
Adjust Network Analyzer output to 10 dBm on
each output from the power splitter
(Figure 11)
Q Charge Injection
VIN = VCC to VEE, fIS = 1 kHz, tr = tf = 3 ns
RIS = 0 W, CL= 1000 pF, Q = CL * DVOUT
(Figure 10)
THD
Total Harmonic Distortion THD + Noise
fIS = 1 MHz, RL = 10 KW, CL = 50 pF,
VIS = 5.0 VPP sine wave
VIS = 6.0 VPP sine wave
(Figure 19)
VCC
V
VEE
V
3.0 0.0
4.5 0.0
6.0 0.0
3.0 −3.0
3.0 0.0
4.5 0.0
6.0 0.0
3.0 −3.0
3.0 0.0
4.5 0.0
6.0 0.0
3.0 −3.0
5.0 0.0
3.0 −3.0
Typ
25°C
80
80
80
80
−70
−70
−70
−70
−2
−2
−2
−2
9.0
12
Unit
MHz
dB
dB
pC
6.0 0.0
3.0 −3.0
0.10
0.05
%
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5
5 Page MC74LVX4051
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 five volts. Therefore,
using the configuration of Figure 21, a maximum analog
signal of five 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 22. These diodes should be able to absorb the
maximum anticipated current surges during clipping.
)3.0 V
*3.0 V
ANALOG
SIGNAL
)3.0 V
16
ANALOG
ON SIGNAL
)3.0 V
)5 V
*3.0 V
GND
ANALOG
SIGNAL
)5 V
16
ANALOG
ON SIGNAL
)5 V
GND
*3.0 V
6 11
7 10
89
TO EXTERNAL CMOS
CIRCUITRY 0 to 3.0 V
DIGITAL SIGNALS
Figure 20. Application Example
6 11 TO EXTERNAL CMOS
7 10 CIRCUITRY 0 to 5 V
8 9 DIGITAL SIGNALS
Figure 21. Application Example
VCC
Dx
Dx
VEE
VEE
VCC
16
ON/OFF
VCC
Dx
Dx
VEE
7
8
Figure 22. External Germanium or Schottky Clipping Diodes
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11
11 Page |
Páginas | Total 15 Páginas | |
PDF Descargar | [ Datasheet MC74LVX4051.PDF ] |
Número de pieza | Descripción | Fabricantes |
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