19-0028; Rev 4; 5/10
Monolithic CMOS Analog Multiplexers
Maxim’s DG508A and DG509A are monolithic CMOS
analog multiplexers (muxes): the DG508A is a single
8-channel (1-of-8) mux, and the DG509A is a differential 4-channel (2-of-8) mux.
Both devices guarantee break-before-make switching.
Maxim guarantees these muxes will not latch up if the
power supplies are turned off with the input signals still
present. Maxim also guarantees continuous operation
when these devices are powered by supplies ranging
from ±4.5V to ±18V.
The DG508A/DG509A are plug-in upgrades for the
industry-standard DG508A/DG509A, respectively.
Maxim’s parts have faster enable switching times and
significantly lower leakage currents. The DG508A/
DG509A also consume significantly lower power, making them ideal for portable equipment.
Applications
Features
♦ Improved Second Source
♦ Operate from ±4.5V to ±18V Supplies
♦ Symmetrical, Bidirectional Operation
♦ Logic and Enable Inputs, TTL and
CMOS Compatible
♦ Latchup-Proof Construction
♦ Monolithic, Low-Power CMOS Design
Ordering Information
PART
DG508ACJ
TEMP RANGE
PIN-PACKAGE
0°C to +70°C
16 Plastic DIP
DG508ACWE
0°C to +70°C
16 Wide SO
DG508AC/D
0°C to +70°C
Dice*
DG508ABK
-20°C to +85°C
16 CERDIP
Control Systems
DG508ADJ
-40°C to +85°C
16 Plastic DIP
Data Logging Systems
DG508ADY
-40°C to +85°C
16 Narrow SO
Aircraft Heads-Up Displays
DG508AEWE
-40°C to +85°C
16 Wide SO
Data-Acquisition Systems
DG508AAK
-55°C to +125°C
16 CERDIP
DG508AMY/PR
-55°C to +125°C
16 Narrow SO
0°C to +70°C
16 Plastic DIP
Signal Routing
DG509ACJ
Typical Operating Circuits
-15V
V+ GND
VS1
S2
S3
DG508A
S4
D
S5
S6
S7
S8 A0 A1 A2 EN
ANALOG
INPUT
(OUTPUTS)
+15V
V+
CLOCK
IN
N.C.
BIN
-15V
ANALOG
OUTPUT
(INPUTS)
QB
QC
QD
AIN
Q
r01 r02 GND A
DG509ACWE
0°C to +70°C
16 Wide SO
DG509AC/D
0°C to +70°C
Dice*
DG509ABK
-20°C to +85°C
16 CERDIP
DG509ADJ
-40°C to +85°C
16 Plastic DIP
DG509ADY
-40°C to +85°C
16 Narrow SO
DG509AEWE
-40°C to +85°C
16 Wide SO
DG509AAK
-55°C to +125°C
16 CERDIP
DG509AMY/PR
-55°C to +125°C
16 Narrow SO
Devices are available in a lead(Pb)-free/RoHS-compliant package (except CERDIP). Specify lead-free by adding a plus (+)
to the part number when ordering.
*Contact factory for dice specifications.
N.C.
+15V
ENABLE IN (MUX ON/OFF CONTROL)
8-CHANNEL SEQUENTIAL MUX/DEMUX
Typical Operating Circuits continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
DG508A/DG509A
General Description
DG508A/DG509A
Monolithic CMOS Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to VV+ .....................................................................................+44V
GND ................................................................................. +25V
Digital Inputs, VS and VD (Note 1)...................-2V to (V+ + 2V)
or 20mA, whichever occurs first
Current (any terminal, except S or D) .................................30mA
Continuous Current, S or D .................................................20mA
Peak Current, S or D (pulsed at 1ms, 10% duty cycle max) ..40mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ...........842mW
Narrow SO (derate 8.70mWI°C above +70°C) .............696mW
Wide SO (derate 9.52mW/°C above +70°C).................762mW
CERDIP (derate 10.00mW/°C above +70°C) ................800mW
Operating Temperature Ranges:
DG50_ACJ/CWE ..................................................0°C to +70°C
DG50_ABK........................................................-20°C to +85°C
DG50_ADJ/DY/EWE..........................................-40°C to +85°C
DG50_AAK/MY ...............................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
PDIP, Wide SO, Narrow SO, CERDIP containing lead(Pb)..+240°C
PDIP, Wide SO, Narrow SO lead(Pb)-free ....................+260°C
Note 1: Signals on S_ or D_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, VGND = 0V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
DG508AA/M
DG509AA/M
CONDITIONS
MIN
SWITCH
Analog Signal
Drain-Source OnResistance
Greatest Change
in Drain-Source
On-Resistance
Between Channels
Source OffLeakage Current
Drain Off- DG508A
Leakage
Current
DG509A
Drain On- DG508A
Leakage
Current
DG509A
2
-15
VANALOG
RDS(ON)
RDS(ON)
TYP
Sequence each
switch on,
VA_L = 0.8V,
VA_H = 2.4V (Note 4)
DG508AD/E/B/C
DG509AD/E/B/C
MAX
MIN
+15
-15
TYP
UNITS
MAX
+15
VD = 10V,
I S = -200μA
170
400
170
450
VD = -10V,
I S = 200μA
130
400
130
450
V
RDS(ON) max RDS(ON) min
RDS(ON) =
RDS(ON)
6
6
%
-10V VS 10V
I S(OFF)
VEN = 0V
VS = 10V, VD = -10V
VS = -10V, VD = 10V
0.002
-0.5
-0.005
-2
-0.015
VD = 10V, VS = -10V
ID(OFF)
VEN = 0V
VD = -10V, VS = 10V
VD = 10V, VS = -10V
VD = -10V, VS = 10V
ID(ON)
Sequence each
switch on,
VA_L = 0.8V
VA_H = 2.4V
(Note 2)
0.01
0.005
-2
VS(all) = VD = 10V
VS(all) = VD = -10V
VS(all) = VD = 10V
VS(all) = VD = -10V
-2
-0.015
-1
-0.005
-5
-0.015
0.01
2
0.005
-5
2
-0.03
0.007
0.002
2
-0.008
0.015
-2
0.5
2
5
5
nA
5
-0.03
0.007
-5
nA
-0.008
0.015
-5
1
-0.015
_______________________________________________________________________________________
5
nA
Monolithic CMOS Analog Multiplexers
DG508A/DG509A
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V- = -15V, VGND = 0V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
DG508AA/M
DG509AA/M
MIN
TYP
-10
-
DG508AD/E/B/C
DG509AD/E/B/C
MAX
MIN
TYP
10
-0.002
UNITS
MAX
LOGIC INPUT
Logic Input Current,
Input Voltage High
IAH
Logic Input Current,
Input Voltage Low
IAL
VA_ = 2.4V
VA_ = 15V
All VA_ = 0V
0.006
10
0.006
VEN = 2.4V
-10
-
10
-0.002
VEN = 0V
-10
-
-10
-0.002
10
μA
μA
DYNAMIC
Multiplexer Switching
t transition
Figure 1
0.6
t OPEN
Figure 3
0.2
Enable Turn-On Time
t ON(EN)
Figure 2
0.4
1.0
0.4
1.5
μs
Enable Turn-Off Time
t OFF(EN)
Figure 2
0.2
0.7
0.2
1.0
μs
VEN = 0V, RL = 1k, CL = l5pF,
VS = 7VRMS f = 500kHz (Note 3)
68
68
dB
CS(OFF)
VS = 0V, VEN = 0V, f = 140kHz
5
5
pF
CD(OFF)
VS = 0V, VEN = 0V, f = 140kHz
25
25
12
12
Positive Supply Current
I+
VEN = 2.4V, all VA_ = 0V or 2.4V
Negative Supply Current
I-
VEN = 2.4V, all VA_ = 0V or 2.4V
Positive Supply Current
in Standby
I+
VEN = 0V, all VA_ = 0V or 2.4V
Negative Supply Current
in Standby
I-
VEN = 0V, all VA_ = 0V or 2.4V
Power-Supply Range for
Continuous Operation
V-, V+
Break-Before-Make
Interval
Off-Isolation
OIRR
Source Off-Capacitance
Drain OffCapacitanc
e
SUPPLY
IDG508A
DGS09A
(Notes 4, 5)
0.02
-0.1
±4.5
-0.01
0.6
1. 0
0.2
0.2
-0.01
0.02
-0.1
1. 0
0.02
-0.1
0.2
-0.1
±18.0 ±4.5
μs
pF
0.2
-0.01
0.02
μs
mA
mA
0.2
-0.01
mA
mA
±18.0
V
_______________________________________________________________________________________
3
DG508A/DG509A
Monolithic CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS
(V+ = 15V, VGND = 0V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
DG508AA/M
DG509AA/M
MIN
TYP
DG508AD/E/B/C
DG509AD/E/B/C
MAX
MIN
+15
-15
TYP
UNITS
MAX
SWITCH
Analog Signal
Range
Drain-Source OnResistance
Source Off-Leakage
Current
Drain OffLeakage
Current
Drain OnLeakage
Current
VANALOG
RDS(ON)
I S(OFF)
-15
Sequence each
switch on,
VA_L = 0.8V,
VA_H = 2.4V
VEN = 0V
DG508A
ID(OFF)
VEN = 0V
DG509A
VD = 10V,
I S = -200μA
500
550
VD = -10V,
I S = 200μA
500
550
VS = 10V, VD = -10V
ID(ON)
DG509A
+50
-50
VD = -10V, VS = -10V
-200
-100
+100
nA
-100
+200
-200
+100
-100
nA
VS(all) = VD = 10V
VS(all) = VD = -10V
nA
+100
-200
+200
VS(all) = VD = 10V
VS(all) = VD = -10V
+50
-50
+200
VD = 10V, VS = -10V
Sequence each
switch on,
VA_L = 0.8V,
VA_H = 2.4V
(Note 2)
V
VS = -10V, VD = -10V
VD = 10V, VS = -10V
VD = -10V, VS = -10V
DG508A
+15
+100
-100
+100
-100
LOGIC INPUT
Logic Input Current,
Input Voltage High
IAH
Logic Input Current,
Input Voltage Low
IAL
VA_ = 2.4V
-30
VA_ = 15V
All VA_ = 0V
-30
+30
+30
VEN = 2.4V
-30
-30
VEN = 0V
-30
-30
μA
μA
Note 2: ID(ON) is leakage from driver into on switch.
Note 3: Off-isolation = 20log
IVSI
IVDI
VS = input to off switch,
VD = output due to VS.
Note 4: Electrical characteristics (such as on-resistance) change when power supplies other than ±15V are used.
Note 5: For designs requiring single 5V or dual ±5V operation, refer to Maxim’s improved MAX338 and MAX339. Minimum operating
voltage for DG508ADY/MY and DG509ADY/MY is ±9V.
4
_______________________________________________________________________________________
Monolithic CMOS Analog Multiplexers
Pin Descriptions
PIN
TOP VIEW
NAME
FUNCTION
DG508A
DG509A
DIP/SO
DIP/SO
1, 15, 16
—
A0, A2,
A1
13 V+
—
1, 16
A0, A1
S2 5
12 S5
2
2
EN
Enable
S3 6
11 S6
3
3
V-
S4 7
10 S7
Negative-Supply Voltage
Input
4–7
—
S1–S4
Analog Inputs,
Bidirectional
—
4–7
S1A–S4A
Analog Inputs,
Bidirectional
8
—
D
Analog Outputs,
Bidirectional
—
8, 9
DA, DB
Analog Outputs,
Bidirectional
9–12
—
S8–S5
Analog Inputs,
Bidirectional
—
10–13
S4B–S1B
Analog Inputs,
Bidirectional
13
14
V+
14
15
GND
A0 1
16 A1
EN 2
15 A2
V- 3
14 GND
S1 4
DG508A
9
D 8
S8
A0 1
16 A1
EN 2
15 GND
V- 3
14 V+
S1A 4
DG509A
13 S1B
S2A 5
12 S2B
S3A 6
11 S3B
S4A 7
10 S4B
DA 8
9
DB
DIP/SO
Address Input
Address Input
Positive-Supply Voltage
Input
Ground
Functional Diagrams
V+
V-
GND
V+
S1
S1A
S2
S2A
S3
S3A
S4
D
S1B
S6
S2B
S7
S3B
S8
S4B
A2
A1
A0
GND
DA
S4A
S5
DG508A CMOS
DECODE LOGIC
V-
DB
DG509A CMOS
DECODE LOGIC
EN
DG508A
8-CHANNEL SINGLE ENDED MULTIPLEXER
A1
A0
EN
DG509A
DIFFERENTIAL 4-CHANNEL MULTIPLEXER
_______________________________________________________________________________________
5
DG508A/DG509A
Pin Configurations
DG508A/DG509A
Monolithic CMOS Analog Multiplexers
+2.4V
+2.4V
+15V
V+
EN
S1
+15V
V+
±10V
EN
S1
±10V
DG509A
S1A–S4A,
DA, S2B, S3B
S2–S7
DG508A
A0
S8
A1
A2
LOGIC
INPUT
D
GND
V1MΩ
50Ω
S4B
A0
SWITCH
OUTPUT
VD
35pF
A1
LOGIC
INPUT
DB
GND
V1MΩ
50Ω
SWITCH
OUTPUT
VDS
35pF
-15V
-15V
Figure 1a. Switching-Time Test Circuit
Figure 1b. Switching-Time Test Circuit
+15V
+15V
V+
EN
V+
S1
-5V
EN
S1B
-5V
DG509A
S1A–S4A,
DA, S2B, S3B
S2–S7
DG508A
A0
A0
A1
A2
LOGIC
INPUT
D
GND
V1kΩ
50Ω
35pF
-15V
Figure 2a. DG508A Enable-Time Test Circuit
6
SWITCH
OUTPUT
VD
A1
LOGIC
INPUT
DB
GND
V1kΩ
50Ω
SWITCH
OUTPUT
VDS
35pF
-15V
Figure 2b. DG509A Enable-Time Test Circuit
_______________________________________________________________________________________
Monolithic CMOS Analog Multiplexers
+15V
3V
50%
0
EN
VS1
DG508A
DG509A
LOGIC
INPUT
DG508A/DG509A
+2.4V
LOGIC INPUT
tr < 20ns
tf < 20ns
A0, A1, (A2)
GND
ALL S
AND DA
SWITCH
OUTPUT
VD
(SEE FIG. 1)
TRANSITION
TIME
+5V
SWITCH
OUTPUT
VD
DB, D
V-
0
0.8VS8
VS8
ttransition
S1ON
1kΩ
50Ω
0.8VS1
S8ON
ttransition
tON
(EN)
35pF
-15V
tOFF
(EN)
0
SWITCH
0.1V0
OUTPUT
VD
(SEE FIG. 2)
TENABLE t(ON) t(OFF)
TIME
0.9V0
V0
VS
Figure 3. Break-Before-Make Test Circuit
SWITCH
OUTPUT
VD
(SEE FIG. 3)
OPEN TIME
(B.B.M INTERVAL)
VS
50%
0V
topen
Figure 4. Timing Diagram for Figures 1, 2, and 3
Table 1a. DG508A Truth Table
Table 1b. DG509A Truth Table
EN
ON SWITCH
A1
A0
X
0
NONE
X
0
1
1
0
A2
A1
A0
X
X
0
0
EN
ON SWITCH
X
0
NONE
0
1
1
1
1
2
0
0
1
1
2
0
0
1
0
1
3
1
0
1
3
0
1
1
1
4
1
1
1
4
1
0
0
1
5
X = Don’t care.
1
0
1
1
6
1
1
0
1
7
1
1
1
1
8
X = Don’t care.
_______________________________________________________________________________________
7
Monolithic CMOS Analog Multiplexers
DG508A/DG509A
Typical Operating
Circuits (continued)
-15V
-15V
V+ GND
VS1A
S2A
DA
S3A
S4A DG509A
S1B
DB
S2B
S3B
S4B
A0 A1 EN
DIFFERENTIAL
ANALOG
INPUTS
(OUTPUTS)
DIFFERENTIAL
ANALOG
OUTPUTS
(INPUTS)
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
16 Plastic DIP
P16-1
21-0043
16 Wide SO
W16-2
21-0042
16 Narrow SO
S16-5
21-0041
16 CERDIP
J16-3
21-0045
+15V
CLOCK IN
Q
J
1/2MM747C73
CLOCK
Q
J
1/2MM747C73
CLOCK
Q
K
N.C.
K
Q
CLEAR GND
RESET ENABLE
DIFFERENTIAL 4-CHANNEL SEQUENTIAL MUX/DEMUX
8
_______________________________________________________________________________________
Monolithic CMOS Analog Multiplexers
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
Updated the “Drain-Source On-Resistance” parameter for both the TA = +25°C and
TA = TMIN to TMAX conditions.
4
5/10
PAGES
CHANGED
2, 4
Deleted the QFN package from the Ordering Information, Absolute Maximum Ratings,
Pin Configurations, Pin Descriptions, and Package Information sections.
1, 2, 5, 8
Added the DG508AMY/PR and DG509AMY/PR parts to the Ordering Information table.
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9
© 2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
DG508A/DG509A
Revision History
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