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PDF ADG508A Data sheet ( Hoja de datos )
| Número de pieza | ADG508A | |
| Descripción | CMOS 4/8 CHAANNEL ANALOG MULTIPLEXERS | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
44 V supply maximum rating
VSS to VDD 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
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
LC2MOS process that gives an increased signal capability of VSS
to VDD 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 RON.
CMOS 4-/8-Channel
Analog Multiplexers
ADG508A/ADG509A
FUNCTIONAL BLOCK DIAGRAMS
ADG508A
S1 D
S8
DECODER
A0 A1 A2 EN
Figure 1. ADG508A
ADG509A
S1A
S4A
S1B
S4B
DECODER
DA
DB
A0 A1 EN
Figure 2. ADG509A
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.
2. Extended Signal Range. The enhanced LC2MOS processing
results in a high breakdown and an increased analog signal
range of VSS to VDD.
3. Break-Before-Make Switching. Switches are guaranteed
break-before-make so that input signals are protected
against momentary shorting.
4. Low Leakage. Leakage currents in the range of 20 pA make
these multiplexers suitable for high precision circuits.
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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.
1 page  
ADG508A/ADG509A
SINGLE SUPPLY
VDD = 10.8 V to 16.5 V, VSS = GND = 0 V, unless otherwise noted.
Table 2.
Parameter
ANALOG SWITCH
Analog Signal Range
RON
ADG508A/
ADG509A
K Version
−40°C to
+25°C +85°C
ADG508A/
ADG509A
B Version
−40°C to
+25°C +85°C
GND
VDD
500
GND
VDD
GND
VDD
500
GND
VDD
RON Drift
RON Match
IS (Off ), Off Input Leakage
700 1000
0.6
5
0.02
700 1000
0.6
5
0.02
1 50
ID (Off), Off Output Leakage 0.04
1 50
0.04
ADG508A
1 100
ADG509A
1 50
ID (On), On Channel Leakage 0.04
1 100
1 50
0.04
ADG508A
ADG509A
IDIFF, Differential Off Output
Leakage (ADG509A Only)
DIGITAL CONTROL
VINH, Input High Voltage
VINL, Input Low Voltage
IINL or IINH
CIN Digital Input Capacitance
DYNAMIC CHARACTERISTICS
tTRANSITION 1
1
1
8
300
100
50
25
2.4
0.8
1
1 100
1 50
25
2.4
0.8
1
8
300
tOPEN1
tON (EN)1
tOFF (EN)1
Off Isolation
450 600
50
25 10
250
450 600
250
450 600
68
450 600
50
25 10
250
450 600
250
450 600
68
CS (Off )
CD (Off )
ADG508A
ADG509A
QINJ, Charge Injection
50
5
22
11
4
50
5
22
11
4
ADG508A/
ADG509A
T Version
−55°C to
+25°C +125°C
GND
VDD
500
GND
VDD
700 1000
0.6
5
0.02
1 50
0.04
1 100
1 50
0.04
1 100
1 50
25
2.4
0.8
1
8
300
450 600
50
25 10
250
450 600
250
450 600
68
50
5
22
11
4
Unit
V min
V max
Ω typ
Ω max
%/°C typ
% typ
nA typ
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
nA max
V min
V max
μA max
pF max
ns typ
ns max
ns typ
ns min
ns typ
ns max
ns typ
ns max
dB typ
dB min
pF typ
pF typ
pF typ
pC typ
Comments
GND ≤ VS ≤ 10 V, IDS = 0.5 mA;
see Figure 14
VS = 0, IDS = 0.5 mA
GND ≤ VS ≤ 10 V, IDS = 0.5 mA
V1 = 10 V/GND, V2 = GND/10 V;
see Figure 15
V1 = 10 V/GND, V2 = GND/10 V;
see Figure 16
V1 = V2 = 10 V/GND;
see Figure 17
V1 = 10 V/GND, V2 = GND/10 V;
see Figure 18
VIN = 0 to VDD
V1 = 10 V/GND, V2 = GND/10 V;
see Figure 19
See Figure 20
See Figure 21
See Figure 21
VEN = 0.8 V, RL = 1kΩ, CL = 15 pF,
VS = 3.5 V rms, f = 100 kHz
VEN = 0.8 V
VEN = 0.8 V
RS = 0 Ω, VS = 0 V; see Figure 22
Rev. D | Page 5 of 16
5 Page 
ADG508A/ADG509A
TEST CIRCUITS
Note: All digital input signal rise and fall times measured from 10% to 90% of 3 V. tR = tF = 20 ns.
IDS
VDD
VSS
V1
VDD
VSS
S
VS
D
RON = V1/IDS
Figure 14. RON
IS (OFF)
A
V1 V2
D
EN 0.8V
GND
Figure 15. IS (Off)
V1
VDD
VDD
VSS
VSS
GND
D
EN 0.8V
ID (OFF)
A
V2
Figure 16. ID (Off)
VDD
VSS
VDD
VSS
D
EN 2.4V
A
V1
GND
V2 ID (ON)
Figure 17. ID (On)
VDD
VSS
VDD
VSS
EN 0.8V
DA A
ADG509A
DB A
V1 GND
V2
Figure 18. IDIFF = IDB (Off)
3V
50%
0V
ADDRESS
DRIVE (VIN)
90%
OUTPUT
90%
tTRANSITION
tTRANSITION
VIN
50Ω
2.4V
VDD
VSS
VDD
A2
A1
A0
VSS
S1
S2–S7
V1
S8 V2
ADG508A1 OUTPUT
EN D
GND
1MΩ
35pF
1SIMILAR CONNECTION FOR ADG509A.
Figure 19. Switching Time of Multiplexer, tTRANSITION
Rev. D | Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ADG508A.PDF ] | |
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