ADG433 Analog Devices, ADG433 Datasheet

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ADG433

Manufacturer Part Number
ADG433
Description
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The ADG431, ADG432 and ADG433 are monolithic CMOS
devices comprising four independently selectable switches. They
are designed on an enhanced LC
low power dissipation yet gives high switching speed and low on
resistance.
The on resistance profile is very flat over the full analog input
range ensuring excellent linearity and low distortion when
switching audio signals. Fast switching speed coupled with high
signal bandwidth also make the parts suitable for video signal
switching. CMOS construction ensures ultralow power dissipa-
tion making the parts ideally suited for portable and battery
powered instruments.
The ADG431, ADG432 and ADG433 contain four indepen-
dent SPST switches. The ADG431 and ADG432 differ only in
that the digital control logic is inverted. The ADG431 switches
are turned on with a logic low on the appropriate control input,
while a logic high is required for the ADG432. The ADG433
has two switches with digital control logic similar to that of the
ADG431 while the logic is inverted on the other two switches.
Each switch conducts equally well in both directions when ON
and has an input signal range which extends to the supplies. In
the OFF condition, signal levels up to the supplies are blocked.
All switches exhibit break before make switching action for use
in multiplexer applications. Inherent in the design is low charge
injection for minimum transients when switching the digital inputs.
2
MOS process which provides
PRODUCT HIGHLIGHTS
1. Extended Signal Range
2. Ultralow Power Dissipation
3. Low R
4. Break-Before-Make Switching
5. Single Supply Operation
Precision Quad SPST Switches
The ADG431, ADG432 and ADG433 are fabricated on an
enhanced LC
which extends fully to the supply rails.
This prevents channel shorting when the switches are config-
ured as a multiplexer.
For applications where the analog signal is unipolar, the
ADG431, ADG432, and ADG433 can be operated from a
single rail power supply. The parts are fully specified with a
single 12 V power supply and will remain functional with
single supplies as low as 5 V.
IN1
IN2
IN3
IN4
ADG431/ADG432/ADG433
ON
FUNCTIONAL BLOCK DIAGRAMS
ADG431
SWITCHES SHOWN FOR A LOGIC "1" INPUT
2
MOS process giving an increased signal range
IN1
IN2
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
ADG433
IN1
IN2
IN3
IN4
ADG432
S1
D1
S2
D2
S3
D3
S4
D4
LC
S1
D1
S2
D2
S3
D3
S4
D4
2
MOS

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ADG433 Summary of contents

Page 1

... The ADG431 switches are turned on with a logic low on the appropriate control input, while a logic high is required for the ADG432. The ADG433 has two switches with digital control logic similar to that of the ADG431 while the logic is inverted on the other two switches. ...

Page 2

... INH Input Low Voltage, V INL Input Current INL INH C Digital Input Capacitance IN 1 DYNAMIC CHARACTERISTICS OFF Break-Before-Make Time Delay (ADG433 Only) Charge Injection OFF Isolation Channel-to-Channel Crosstalk C (OFF (OFF (ON POWER REQUIREMENTS ...

Page 3

... pF MHz Test Circuit Ω pF MHz Test Circuit MHz MHz MHz Digital Inputs = 5. Truth Table (ADG433) Switch 1, 4 Switch 2, 3 OFF ON ON OFF ...

Page 4

... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADG431/ADG432/ADG433 features proprietary ESD protection circuitry, perma- nent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...

Page 5

... Typical Performance Characteristics–ADG431/ADG432/ADG433 + – +10V –10V +15V –15V SS 0 –20 – – DRAIN OR SOURCE VOLTAGE – –20 – – DRAIN OR SOURCE VOLTAGE – V ...

Page 6

... The ADG431/ADG432 –15V SS ADG433 minimizes this droop due to its low leakage specifica +5V L tions. The droop rate is further minimized by the use of a polystyrene hold capacitor. The droop rate for the circuit shown is typically 30 µV/µs. ...

Page 7

... R C OUT1 OUT2 35pF 300 35pF 300 V OUT2 + OUT 10nF V OUT V SS –15V ADG431/ADG432/ADG433 I (ON 50% 50% 3V 50% 50% 90% 90 OFF 3V 50% 50% 0V 90% 90% 0V 90% 90 ...

Page 8

... PLANE (2.54) 0.045 (1.15) 0.014 (0.356) BSC ADG431/ADG432/ADG433–Revision History Location Data Sheet changed from REV REV. C. Changes to Specifications Table (Dual Supply Changes to Specifications Table (Single Supply Changes to Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Changes to Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 16-Lead Cerdip deleted from Outline Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ...

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