ADG412 AD [Analog Devices], ADG412 Datasheet

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ADG412

Manufacturer Part Number
ADG412
Description
LC2MOS Precision Quad SPST Switches
Manufacturer
AD [Analog Devices]
Datasheet

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a
GENERAL DESCRIPTION
The ADG411, ADG412 and ADG413 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 ADG411, ADG412 and ADG413 contain four indepen-
dent SPST switches. The ADG411 and ADG412 differ only in
that the digital control logic is inverted. The ADG411 switches
are turned on with a logic low on the appropriate control input,
while a logic high is required for the ADG412. The ADG413
has two switches with digital control logic similar to that of the
ADG411 while the logic is inverted on the other two switches.
Each switch conducts equally well in both directions when ON
and each has an input signal range that extends to the supplies.
In the OFF condition, signal levels up to the supplies are
blocked. All switches exhibit break-before-make switching ac-
tion for use in multiplexer applications. Inherent in the design is
low charge injection for minimum transients when switching the
digital inputs.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
44 V Supply Maximum Ratings
Low On Resistance (<35
Ultralow Power Dissipation (35 W)
Fast Switching Times
TTL/CMOS Compatible
Plug-In Replacement for DG411/DG412/DG413
APPLICATIONS
Audio and Video Switching
Automatic Test Equipment
Precision Data Acquisition
Battery Powered Systems
Sample Hold Systems
Communication Systems
15 V Analog Signal Range
t
t
ON
OFF
<175 ns
<145 ns
)
2
MOS process which provides
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
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 ADG411, ADG412 and ADG413 are fabricated on an
enhanced LC
extends fully to the supply rails.
This prevents channel shorting when the switches are
configured as a multiplexer.
For applications where the analog signal is unipolar, the
ADG411, ADG412 and ADG413 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
ADG411/ADG412/ADG413
ON
FUNCTIONAL BLOCK DIAGRAMS
ADG411
SWITCHES SHOWN FOR A LOGIC "1" INPUT
2
MOS, giving an increased signal range which
World Wide Web Site: http://www.analog.com
IN1
IN2
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
ADG413
IN1
IN2
IN3
IN4
© Analog Devices, Inc., 1998
S1
D1
S2
D2
S3
D3
S4
D4
ADG412
LC
S1
D1
S2
D2
S3
D3
S4
D4
2
MOS

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ADG412 Summary of contents

Page 1

... The ADG411 switches are turned on with a logic low on the appropriate control input, while a logic high is required for the ADG412. The ADG413 has two switches with digital control logic similar to that of the ADG411 while the logic is inverted on the other two switches. ...

Page 2

... ADG411/ADG412/ADG413–SPECIFICATIONS Dual Supply (V = + Parameter ANALOG SWITCH Analog Signal Range R ON LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) D Channel ON Leakage (ON DIGITAL INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current ...

Page 3

... POWER REQUIREMENTS NOTES 1 Temperature ranges are as follows: B Versions: – + Versions: – +125 C. 2 Guaranteed by design, not subject to production test. Specifications subject to change without notice. Truth Table (ADG411/ADG412) ADG411 In ADG412 In Switch Condition OFF REV ...

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 ADG411/ADG412/ADG413 feature proprietary ESD protection circuitry, permanent 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

... + 100nA for Figure 5. Supply Current vs. Input Switching Frequency D S 0.04 0.02 0.00 –0.02 –0.04 –20 1M 10M 10M Figure 6. Leakage Currents as a Function of V –5– ADG411/ADG412/ADG413 +10V V = +12V ...

Page 6

... H Due to switch and capacitor leakage, the voltage on the hold capacitor will decrease with time. The ADG411/ADG412/ ADG413 minimizes this droop due to its low leakage specifica- tions. The droop rate is further minimized by the use of a poly- styrene hold capacitor. The droop rate for the circuit shown is typically ...

Page 7

... OUT2 Test Circuit 5. Break-Before-Make Time Delay +15V + OUT 10nF V OUT V GND SS –15V Test Circuit 6. Charge Injection –7– ADG411/ADG412/ADG413 Test Circuit 3. On Leakage 3V 50% 50% 3V 50% 50% 90% 90 OFF 3V V 50% 50 ...

Page 8

... ADG411/ADG412/ADG413 +15V +5V 0 GND SS 0.1 F –15V Test Circuit 7. Off Isolation 16-Lead Cerdip (Q-16) 0.005 (0.13) MIN 0.080 (2.03) MAX 16 9 0.310 (7.87) 0.220 (5.59 PIN 1 0.840 (21.34) MAX 0.060 (1.52) 0.015 (0.38) 0.200 (5.08) MAX 0.150 (3.81) 0.200 (5.08) MIN 0.125 (3.18) SEATING 0.023 (0.58) 0.100 0.070 (1.78) PLANE (2 ...

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