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CMOS 4-/8-Channel
Analog Multiplexers
ADG508A/ADG509A
FEATURES
44 V supply maximum rating
V
SS
to V
DD
analog signal range
Single-/dual-supply specifications
Wide supply range: 10.8 V to 16.5 V
Extended plastic temperature range: −40°C to +85°C
Low power dissipation: 28 mW maximum
Low leakage: 20 pA typical
Available in 16-lead DIP/SOIC and 20-lead PLCC/LCC
packages
Superior alternative to
DG508A, HI-508
DG509A, HI-509
FUNCTIONAL BLOCK DIAGRAMS
ADG508A
S1
D
S8
DECODER
00051-001
A0 A1 A2 EN
Figure 1. ADG508A
ADG509A
S1A
S4A
DA
S1B
S4B
DECODER
DB
A0
A1
EN
Figure 2. ADG509A
GENERAL DESCRIPTION
The ADG508A and ADG509A are CMOS monolithic analog
multiplexers with eight channels and dual four channels, respec-
tively. The ADG508A switches one of eight inputs to a common
output, depending on the state of three binary addresses and an
enable input. The ADG509A switches one of four differential
inputs to a common differential output, depending on the state
of two binary addresses and an enable input. Both devices have
TTL and 5 V CMOS logic-compatible digital inputs.
The ADG508A and ADG509A are designed on an enhanced
LC
2
MOS process that gives an increased signal capability of V
SS
to V
DD
and enables operation over a wide range of supply voltages.
The devices can comfortably operate anywhere in the 10.8 V to
16.5 V single- or dual-supply range. These multiplexers also
feature high switching speeds and low R
ON
.
PRODUCT HIGHLIGHTS
1.
Single-/Dual-Supply Specifications with a Wide Tolerance.
The devices are specified in the 10.8 V to 16.5 V range for
both single and dual supplies.
Extended Signal Range. The enhanced LC
2
MOS processing
results in a high breakdown and an increased analog signal
range of V
SS
to V
DD
.
Break-Before-Make Switching. Switches are guaranteed
break-before-make so that input signals are protected
against momentary shorting.
Low Leakage. Leakage currents in the range of 20 pA make
these multiplexers suitable for high precision circuits.
2.
3.
4.
Rev. D
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
©2009 Analog Devices, Inc. All rights reserved.
00051-002
ADG508A/ADG509A
TABLE OF CONTENTS
Features .............................................................................................. 1
Functional Block Diagrams ............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Dual Supply ................................................................................... 3
Single Supply ................................................................................. 5
Absolute Maximum Ratings ............................................................7
ESD Caution...................................................................................7
Pin Configurations and Function Descriptions ............................8
Typical Performance Characteristics ........................................... 10
Test Circuits ..................................................................................... 11
Single-Supply Octal DAC Application ........................................ 13
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 16
REVISION HISTORY
7/09—Rev.
C to Rev. D
Changes to Table 4 ............................................................................ 8
3/07—Rev. B to Rev. C
Updated Format .................................................................. Universal
Changes to Table 3 ............................................................................ 6
Inserted Table 4 ................................................................................. 7
Inserted Table 6 ................................................................................. 8
Changes to Figure 24 ...................................................................... 12
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 15
Rev. D | Page 2 of 16
ADG508A/ADG509A
SPECIFICATIONS
DUAL SUPPLY
V
DD
= 10.8 V to 16.5 V, V
SS
= −10.8 V to −16.5 V, unless otherwise noted.
Table 1.
ADG508A/
ADG509A
K Version
−40°C to
+25°C +85°
V
SS
V
DD
280
450
300
V
SS
V
DD
ADG508A/
ADG509A
B Version
−40°C to
+25°C +85°C
V
SS
V
DD
280
450
300
V
SS
V
DD
ADG508A/
ADG509A
T Version
−55°C to
+25°C +125°C
V
SS
V
DD
280
450
V
SS
V
DD
Parameter
ANALOG SWITCH
Analog Signal Range
R
ON
Unit
V min
V max
Ω typ
Ω max
Ω max
Ω max
%/°C typ
% typ
nA typ
Comments
−10 V ≤ V
S
≤ +10 V, I
DS
= 1 mA;
see Figure 14
V
DD
= 15 V (±10%),
V
SS
= −15 V (±10%)
V
DD
= 15 V (±5%),
V
SS
= −15 V (±5%)
V
S
= 0, I
DS
= 1 mA
−10 V ≤ V
S
≤ +10 V, I
DS
= 1 mA
V1 = ±10 V, V2 =
m
10 V;
see Figure 15
V1 = ±10 V, V2 =
m
10 V;
see Figure 16
600
400
600
400
600
300
R
ON
Drift
R
ON
Match
I
S
(Off ), Off Input Leakage
0.6
5
0.02
1
0.04
1
1
0.04
1
1
50
0.6
5
0.02
1
0.04
1
1
0.04
1
1
50
0.6
5
0.02
1
0.04
1
1
0.04
1
1
400
50
I
D
(Off), Off Output Leakage
ADG508A
ADG509A
I
D
(On), On Channel Leakage
ADG508A
ADG509A
I
DIFF
, Differential Off Output
Leakage (ADG509A Only)
DIGITAL CONTROL
V
INH
, Input High Voltage
V
INL
, Input Low Voltage
I
INL
or I
INH
C
IN
Digital Input Capacitance
DYNAMIC CHARACTERISTICS
t
TRANSITION 1
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
nA max
100
50
100
50
25
100
50
100
50
25
100
50
100
50
25
V1 = V2 = ±10 V; see Figure 17
V1 = ±10 V, V2 =
m
10 V;
see Figure 18
2.4
0.8
1
8
200
300
50
25
200
300
200
300
68
50
400
10
400
400
8
200
300
50
25
200
300
200
300
68
50
2.4
0.8
1
8
200
400
10
400
400
300
50
25
200
300
200
300
68
50
2.4
0.8
1
V min
V max
μA max
pF max
ns typ
V
IN
= 0 to V
DD
V1 = ±10 V, V2 =
m
10 V;
see Figure 19
See Figure 20
See Figure 21
See Figure 21
V
EN
= 0.8 V, R
L
= 1 kΩ, C
L
= 15 pF,
V
S
= 7 V rms, f = 100 kHz
400
10
400
400
t
1
OPEN
t
ON
(EN)
1
t
OFF
(EN)
1
OffF Isolation
ns max
ns typ
ns min
ns typ
ns max
ns typ
ns max
dB typ
dB min
Rev. D | Page 3 of 16
ADG508A/ADG509A
ADG508A/
ADG509A
K Version
−40°C to
+25°C +85°
5
22
11
4
0.6
1.5
I
SS
Power Dissipation
20
0.2
10
28
1
Parameter
C
S
(Off )
C
D
(Off )
ADG508A
ADG509A
Q
INJ
, Charge Injection
POWER SUPPLY
I
DD
ADG508A/
ADG509A
B Version
−40°C to
+25°C +85°C
5
22
11
4
0.6
1.5
20
0.2
10
28
ADG508A/
ADG509A
T Version
−55°C to
+25°C +125°C
5
22
11
4
0.6
1.5
20
0.2
10
28
Unit
pF typ
pF typ
pF typ
pC typ
mA typ
mA max
μA typ
mA max
mW typ
mW max
Comments
V
EN
= 0.8 V
V
EN
= 0.8 V
R
S
= 0 Ω, V
S
= 0; see Figure 22
V
IN
= V
INL
or V
INH
V
IN
= V
INL
or V
INH
Sample tested at 25°C to ensure compliance.
Rev. D | Page 4 of 16
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