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MOS 4-/8-Channel
High Performance Analog Multiplexers
ADG408/ADG409
FEATURES
44 V supply maximum ratings
V
SS
to V
DD
analog signal range
Low on resistance (100 Ω maximum)
Low power (I
SUPPLY
< 75 μA)
Fast switching
Break-before-make switching action
Plug-in replacement for DG408/DG409
FUNCTIONAL BLOCK DIAGRAMS
ADG408
S1
S1A
DA
S4A
D
S1B
DB
S8
1-OF-8
DECODER
S4B
1-OF-4
DECODER
00027-001
ADG409
APPLICATIONS
Audio and video routing
Automatic test equipment
Data acquisition systems
Battery-powered systems
Sample-and-hold systems
Communication systems
A0 A1 A2 EN
A0
A1
EN
Figure 1.
GENERAL DESCRIPTION
The ADG408/ADG409 are monolithic CMOS analog multiplexers
comprising eight single channels and four differential 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 determined 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 the device is disabled,
all channels are switched off.
The ADG408/ADG409 are designed on an enhanced LC
2
MOS
process that 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.
PRODUCT HIGHLIGHTS
1.
Extended Signal Range. The ADG408/ADG409 are
fabricated on an enhanced LC
2
MOS process, giving an
increased signal range that extends to the supply rails.
Low Power Dissipation.
Low R
ON
.
Single-Supply Operation. 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 remain
functional with single supplies as low as 5 V.
2.
3.
4.
Rev. C
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
ADG408/ADG409
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Dual Supply ................................................................................... 3
Single Supply ................................................................................. 4
Absolute Maximum Ratings ............................................................6
ESD Caution...................................................................................6
Pin Configurations and Function Descriptions ............................7
Typical Performance Characteristics ..............................................8
Test Circuits..................................................................................... 11
Terminology .................................................................................... 13
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 16
REVISION HISTORY
10/06—Rev.
B to Rev. C
Updated Format..................................................................Universal
Changes to Table 3............................................................................ 6
Inserted Table 4 and Table 5............................................................ 7
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 15
3/03—Rev. A to Rev. B
Changes to Ordering Guide .............................................................4
Updated Outline Dimensions....................................................... 11
2/01—Revision 0: Initial Version
Rev. C | Page 2 of 16
ADG408/ADG409
SPECIFICATIONS
DUAL SUPPLY
V
DD
= 15 V, V
SS
= −15 V, GND = 0 V, unless otherwise noted.
Table 1.
B Version
−40ºC to
+25ºC
+85ºC
V
SS
to V
DD
40
100
15
±0.5
±1
±1
±1
±1
125
40
100
15
±0.5
±1
±1
±1
±1
T Version
−55ºC to
+25ºC
+125ºC
V
SS
to V
DD
125
Parameter
ANALOG SWITCH
Analog Signal Range
R
ON
∆R
ON
LEAKAGE CURRENTS
Source Off Leakage I
S
(OFF)
Drain Off Leakage I
D
(OFF)
ADG408
ADG409
Channel On Leakage I
D,
I
S
(ON)
ADG408
ADG409
DIGITAL INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current
I
INL
or I
INH
C
IN
, Digital Input Capacitance
DYNAMIC CHARACTERISTICS
1
t
TRANSITION
t
OPEN
t
ON
(EN)
t
OFF
(EN)
Charge Injection
OFF Isolation
Channel-to-Channel Crosstalk
C
S
(OFF)
C
D
(OFF)
ADG408
ADG409
C
D
, C
S
(ON)
ADG408
ADG409
Unit
V
Ω typ
Ω max
Ω max
nA max
nA max
nA max
Test Conditions/Comments
V
D
= ±10 V, I
S
=
−10
mA
V
D
= +10 V,
−10
V
V
D
= ±10 V, V
S
=
m
1
0 V; see Figure 19
V
D
= ±10 V; V
S
=
m
10 V; see Figure 20
±50
±100
±50
±100
±50
2.4
0.8
±10
±50
±100
±50
±100
±50
2.4
0.8
±10
V
S
= V
D
= ±10 V; see Figure 21
nA max
nA max
V min
V max
μA max
pF typ
ns typ
ns max
ns min
ns typ
ns max
ns typ
ns max
pC typ
dB typ
dB typ
pF typ
pF typ
pF typ
f = 1 MHz
54
34
54
34
pF typ
pF typ
V
IN
= 0 or V
DD
f = 1 MHz
R
L
= 300 Ω, C
L
= 35 pF;
V
S1
= ±10 V, V
S8
=
m
10 V; see Figure 22
R
L
= 300 Ω, C
L
= 35 pF;
V
S
= 5 V; see Figure 23
R
L
= 300 Ω C
L
= 35 pF;
V
S
= 5 V; see Figure 24
R
L
= 300 Ω, C
L
= 35 pF;
V
S
= 5 V; see Figure 24
V
S
= 0 V, R
S
= 0 Ω, C
L
= 10 nF; see Figure 25
R
L
= 1 kΩ, f = 100 kHz;
V
EN
= 0 V; see Figure 26
RL = 1 kΩ, f = 100 kHz; see Figure 27
f = 1 MHz
f = 1 MHz
8
120
250
10
125
225
65
150
8
120
250
10
125
225
65
150
10
85
150
10
85
150
20
−75
85
11
40
20
20
−75
85
11
40
20
Rev. C | Page 3 of 16
ADG408/ADG409
Parameter
POWER REQUIREMENTS
I
DD
I
SS
I
DD
100
200
B Version
−40ºC to
+85ºC
+25ºC
1
5
1
5
500
100
200
T Version
−55ºC to
+125ºC
+25ºC
1
5
1
5
500
Unit
μA typ
μA max
μA typ
μA max
μA typ
μA max
Test Conditions/Comments
V
IN
= 0 V, V
EN
= 0 V
V
IN
= 0 V, V
EN
= 2.4 V
1
Guaranteed by design, not subject to production test.
SINGLE SUPPLY
V
DD
= 12 V, V
SS
= 0 V, GND = 0 V, unless otherwise noted.
Table 2.
B Version
−40ºC to
+25ºC +85ºC
0 to V
DD
90
±0.5
±1
±1
±1
±1
±50
±100
±50
±100
±50
2.4
0.8
±10
8
130
10
140
60
5
–75
8
130
10
140
60
5
–75
90
±0.5
±1
±1
±1
±1
±50
±100
±50
±100
±50
2.4
0.8
±10
T Version
−55ºC to
+25°C
+125ºC
0 to V
DD
Parameter
ANALOG SWITCH
Analog Signal Range
R
ON
LEAKAGE CURRENTS
Source Off Leakage I
S
(OFF)
Drain Off Leakage I
D
(OFF)
ADG408
ADG409
Channel On Leakage I
D
, I
S
(ON)
ADG408
ADG409
DIGITAL INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current
I
INL
or I
INH
C
IN,
Digital Input Capacitance
DYNAMIC CHARACTERISTICS
1
t
TRANSITION
t
OPEN
Unit
V
Ω typ
nA max
nA max
nA max
Test Conditions/Comments
V
D
= 3 V, 10 V, I
S
= –1 mA
VD = 8 V/0 V, V
S
= 0 V/8 V; see Figure 19
V
D
= 8 V/0 V, V
S
= 0 V/8 V; see Figure 20
V
S
= V
D
= 8 V/0 V; see Figure 21
nA max
nA max
V min
V max
μA max
pF typ
ns typ
ns typ
ns typ
ns typ
pC typ
dB typ
V
IN
= 0 or V
DD
f = 1 MHz
R
L
= 300 Ω, C
L
= 35 pF;
V
S1
= 8 V/0 V, V
S8
= 0 V/8 V; see Figure 22
R
L
= 300 Ω, C
L
= 35 pF;
V
S
= 5 V; see Figure 23
R
L
= 300 Ω C
L
= 35 pF;
V
S
= 5 V; see Figure 24
R
L
= 300 Ω, C
L
= 35 pF;
V
S
= 5 V; see Figure 24
V
S
= 0 V, R
S
= 0Ω, C
L
= 10 nF; see Figure 25
R
L
= 1 kΩ f = 100 kHz;
V
EN
= 0 V; see Figure 26
t
ON
(EN)
t
OFF
(EN)
Charge Injection
Off Isolation
Rev. C | Page 4 of 16
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