ADG408 Analog Devices, ADG408 Datasheet

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ADG408

Manufacturer Part Number
ADG408
Description
LC2MOS 4-/8-Channel High Performance Analog Multiplexers
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The ADG408 and ADG409 are monolithic CMOS analog
multiplexers comprising eight single channels and four differen-
tial channels respectively. The ADG408 switches one of eight
inputs to a common output as determined by the 3-bit binary
address lines A0, A1 and A2. The ADG409 switches one of four
differential inputs to a common differential output as deter-
mined by the 2-bit binary address lines A0 and A1. An EN
input on both devices is used to enable or disable the device.
When disabled, all channels are switched OFF.
The ADG408/ADG409 are designed on an enhanced LC
process which provides low power dissipation yet gives high
switching speed and low on resistance. Each channel conducts
equally well in both directions when ON and has an input signal
range that extends to the supplies. In the OFF condition, signal
levels up to the supplies are blocked. All channels exhibit break-
before-make switching action, preventing momentary shorting
when switching channels. Inherent in the design is low charge
injection for minimum transients when switching the digital
inputs.
The ADG408/ADG409 are improved replacements for the
DG408/DG409 Analog Multiplexers.
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
V
Low On Resistance (100
Low Power (I
Fast Switching
Break-Before-Make Switching Action
Plug-in Replacement for DG408/DG409
APPLICATIONS
Audio and Video Routing
Automatic Test Equipment
Data Acquisition Systems
Battery Powered Systems
Sample and Hold Systems
Communication Systems
SS
to V
DD
Analog Signal Range
SUPPLY
< 75 A)
max)
High Performance Analog Multiplexers
2
MOS
PRODUCT HIGHLIGHTS
1. Extended Signal Range
2. Low Power Dissipation
3 Low R
4. Single Supply Operation
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
The ADG408/ADG409 are fabricated on an enhanced
LC
extends to the supply rails.
For applications where the analog signal is unipolar, the
ADG408/ADG409 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.
S1
S8
2
MOS process giving an increased signal range that
ON
FUNCTIONAL BLOCK DIAGRAMS
A0 A1 A2 EN
ADG408
DECODER
1 OF 8
LC
World Wide Web Site: http://www.analog.com
2
ADG408/ADG409
MOS 4-/8-Channel
D
S1A
S4A
S1B
S4B
A0
© Analog Devices, Inc., 1998
DECODER
ADG409
1 OF 4
A1
EN
DA
DB

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ADG408 Summary of contents

Page 1

... Low Single Supply Operation For applications where the analog signal is unipolar, the 2 ADG408/ADG409 can be operated from a single rail power MOS supply. The parts are fully specified with a single +12 V power supply and will remain functional with single supplies as low ...

Page 2

... Channel-to-Channel Crosstalk C (OFF (OFF) D ADG408 ADG409 (ON ADG408 ADG409 POWER REQUIREMENTS NOTES 1 Temperature ranges are as follows: B Version: – + Version: – +125 C. 2 Guaranteed by design, not subject to production test. Specifications subject to change without notice. ...

Page 3

... ADG408/ADG409 Units Test Conditions/Comments V DD typ + max Test Circuit V V max Test Circuit 3 ...

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 ADG408/ADG409 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

... S1A TOP VIEW S2A (Not to Scale S3A 6 S4A ADG408 Truth Table ADG409 Truth Table Al ...

Page 6

... ADG408/ADG409 Typical Performance Characteristics 120 100 +10V –10V –15 –10 – – Volts D S Figure Function 100 V = +15V –15V +125 –15 –10 – ...

Page 7

... Figure 10. Switching Time vs 300 V = +5V IN 200 100 13 15 Figure 11. Switching Time vs. Bipolar Supply 100k 1M 10M Figure 12. Negative Supply Current vs. Switching Frequency –7– ADG408/ADG409 V = +12V DD t TRANSITION (EN (EN) OFF – Volts IN ...

Page 8

... ADG408/ADG409 110 100 10k 100k FREQUENCY – Hz Figure 13. Off Isolation vs. Frequency Test Circuits V1 Test Circuit 1. On Resistance (OFF GND Test Circuit 2. I (OFF) S 110 V = +15V –15V SS 100 ...

Page 9

... OUTPUT D 2.4V EN 300 GND 35pF TRANSlTlON THRU ADG408* OUTPUT D 2.4V EN 300 GND 35pF OPEN THRU S8 ADG408* OUTPUT D EN 300 GND 35pF *SIMILAR CONNECTION FOR ADG409 (EN) OFF ...

Page 10

... Test Circuit 10. Channel-to-Channel Crosstalk –10– ADG408 OUT GND 10nF V IN *SIMILAR CONNECTION FOR ADG409 2. ADG408 GND V S CROSSTALK = 20 LOG V /V OUT IN V OUT REV. A ...

Page 11

... SEATING PLANE Thin Shrink Small Outline Package (TSSOP) 16 0.320 (8.13) 0.290 (7.37) 1 0.015 (0.38) PIN 1 15 0.008 (0.20) 0.006 (0.15) 0 0.002 (0.05) 0.0256 SEATING (0.65) PLANE BSC –11– ADG408/ADG409 SO (Narrow Body) (R-16A) 0.3937 (10.00) 0.3859 (9.80 0.2440 (6.20 0.2284 (5.80) PIN 1 0.0688 (1.75) 0.0196 (0.50 0.0532 (1.35) 0.0099 (0.25) 8 0.0192 (0.49) 0 0.0500 (1.27) 0.0099 (0.25) (1 ...

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