19-0028; Rev 4; 5/10
Monolithic CMOS Analog Multiplexers
General Description
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 differen-
tial 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, mak-
ing them ideal for portable equipment.
♦
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
Features
DG508A/DG509A
Ordering Information
PART
DG508ACJ
DG508ACWE
DG508AC/D
DG508ABK
DG508ADJ
DG508ADY
DG508AEWE
DG508AAK
DG508AMY/PR
DG509ACJ
DG509ACWE
DG509AC/D
DG509ABK
DG509ADJ
DG509ADY
DG509AEWE
DG509AAK
DG509AMY/PR
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-20°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-20°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
Dice*
16 CERDIP
16 Plastic DIP
16 Narrow SO
16 Wide SO
16 CERDIP
16 Narrow SO
16 Plastic DIP
16 Wide SO
Dice*
16 CERDIP
16 Plastic DIP
16 Narrow SO
16 Wide SO
16 CERDIP
16 Narrow SO
Applications
Control Systems
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
Typical Operating Circuits
-15V
-15V
ANALOG
INPUT
(OUTPUTS)
+15V
V+
CLOCK
IN
N.C.
B
IN
Q
B
Q
C
V+ GND
V-
S1
S2
S3
DG508A
S4
D
S5
S6
S7
S8 A0 A1 A2 EN
ANALOG
OUTPUT
(INPUTS)
Q
D
A
IN
Q
r01 r02 GND
A
+15V
Devices are available in a lead(Pb)-free/RoHS-compliant pack-
age (except CERDIP). Specify lead-free by adding a plus (+)
to the part number when ordering.
*Contact
factory for dice specifications.
N.C.
ENABLE IN (MUX ON/OFF CONTROL)
8-CHANNEL SEQUENTIAL MUX/DEMUX
Typical Operating Circuits continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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.
Monolithic CMOS Analog Multiplexers
DG508A/DG509A
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+ .....................................................................................+44V
GND ................................................................................. +25V
Digital Inputs, V
S
and V
D
(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 (T
A
= +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, V
GND
= 0V,
T
A
= +25°C,
unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal
Drain-Source On-
Resistance
SYMBOL
CONDITIONS
DG508AA/M
DG509AA/M
MIN
V
ANALOG
Sequence each
switch on,
V
A_L
= 0.8V,
V
A_H
= 2.4V (Note 4)
V
D
= 10V,
I
S
= -200μA
V
D
= -10V,
I
S
= 200μA
-15
170
130
TYP
MAX
+15
400
400
DG508AD/E/B/C
DG509AD/E/B/C
MIN
-15
170
130
TYP
MAX
+15
450
450
V
UNITS
R
DS(ON)
Greatest Change
in Drain-Source
On-Resistance
Between Channels
Source Off-
Leakage Current
Drain Off- DG508A
Leakage
Current
DG509A
Drain On- DG508A
Leakage
Current
DG509A
R
DS(ON)
R
DS(ON)
=
-10V
V
S
R
DS(ON)
max R
DS(ON)
min
R
DS(ON)
10V
V
S
= 10V, V
D
= -10V
V
S
= -10V, V
D
= 10V
V
D
= 10V, V
S
= -10V
V
D
= -10V, V
S
= 10V
V
D
= 10V, V
S
= -10V
V
D
= -10V, V
S
= 10V
-2
V
S(all)
= V
D
= 10V
V
S(all)
= V
D
= -10V
V
S(all)
= V
D
= 10V
V
S(all)
= V
D
= -10V
-2
-2
-0.5
-2
6
6
%
I
S(OFF)
V
EN
= 0V
0.002
-0.005
0.01
-0.015
0.005
-0.008
0.015
-0.03
0.007
-0.015
0.5
-1
2
-5
2
-5
2
-5
2
-5
0.002
-0.005
0.01
-0.015
0.005
-0.008
0.015
-0.03
0.007
-0.015
1
5
5
5
nA
I
D(OFF)
V
EN
= 0V
nA
I
D(ON)
Sequence each
switch on,
V
A_L
= 0.8V
V
A_H
= 2.4V
(Note 2)
5
nA
2
_______________________________________________________________________________________
Monolithic CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V- = -15V, V
GND
= 0V,
T
A
= +25°C,
unless otherwise noted.)
PARAMETER
LOGIC INPUT
Logic Input Current,
Input Voltage High
Logic Input Current,
Input Voltage Low
DYNAMIC
Multiplexer Switching
Break-Before-Make
Interval
Enable Turn-On Time
Enable Turn-Off Time
Off-Isolation
Source Off-Capacitance
Drain Off-
Capacitanc
e
SUPPLY
IDG508A
DGS09A
t
transition
t
OPEN
t
ON(EN)
t
OFF(EN)
OIRR
C
S(OFF)
C
D(OFF)
Figure 1
Figure 3
Figure 2
Figure 2
V
EN
= 0V, R
L
= 1k , C
L
= l5pF,
V
S
= 7V
RMS
f = 500kHz (Note 3)
V
S
= 0V, V
EN
= 0V, f = 140kHz
V
S
= 0V, V
EN
= 0V, f = 140kHz
0.6
0.2
0.4
0.2
68
5
25
12
0.02
-0.1
-0.01
0.02
-0.1
±4.5
-0.01
0.2
-0.1
±18.0 ±4.5
0.2
-0.1
1.0
0.7
1. 0
0.6
0.2
0.4
0.2
68
5
25
12
0.02
-0.01
0.02
-0.01
±18.0
0.2
0.2
1.5
1.0
1. 0
μs
μs
μs
μs
dB
pF
pF
I
AH
I
AL
V
A_
= 2.4V
V
A_
= 15V
All V
A_
= 0V
V
EN
= 2.4V
V
EN
= 0V
-10
-10
-10
-
0.006
-
-
10
10
-10
10
-0.002
0.006
-0.002
-0.002
10
μA
μA
SYMBOL
CONDITIONS
DG508AA/M
DG509AA/M
MIN
TYP
MAX
DG508AD/E/B/C
DG509AD/E/B/C
MIN
TYP
MAX
UNITS
DG508A/DG509A
Positive Supply Current
Negative Supply Current
Positive Supply Current
in Standby
Negative Supply Current
in Standby
Power-Supply Range for
Continuous Operation
I+
I-
I+
I-
V-, V+
V
EN
= 2.4V, all V
A_
= 0V or 2.4V
V
EN
= 2.4V, all V
A_
= 0V or 2.4V
V
EN
= 0V, all V
A_
= 0V or 2.4V
V
EN
= 0V, all V
A_
= 0V or 2.4V
(Notes 4, 5)
mA
mA
mA
mA
V
_______________________________________________________________________________________
3
Monolithic CMOS Analog Multiplexers
DG508A/DG509A
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V
GND
= 0V,
T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
DG508AA/M
DG509AA/M
MIN
SWITCH
Analog Signal
Range
Drain-Source On-
Resistance
Source Off-Leakage
Current
Drain Off-
Leakage
Current
DG508A
I
D(OFF)
DG509A
V
EN
= 0V
V
ANALOG
Sequence each
switch on,
V
A_L
= 0.8V,
V
A_H
= 2.4V
V
EN
= 0V
V
D
= 10V,
I
S
= -200μA
V
D
= -10V,
I
S
= 200μA
-50
+200
-200
+200
-100
+200
-200
+100
-100
-30
+30
V
EN
= 2.4V
V
EN
= 0V
-30
-30
-30
-30
-100
-30
+30
-100
nA
+100
-100
+100
-200
+100
-15
+15
500
500
+50
-50
+100
nA
-15
+15
550
550
+50
nA
V
TYP
MAX
DG508AD/E/B/C
DG509AD/E/B/C
MIN
TYP
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
R
DS(ON)
I
S(OFF)
V
S
= 10V, V
D
= -10V
V
S
= -10V, V
D
= -10V
V
D
= 10V, V
S
= -10V
V
D
= -10V, V
S
= -10V
V
D
= 10V, V
S
= -10V
V
D
= -10V, V
S
= -10V
V
S(all)
= V
D
= 10V
V
S(all)
= V
D
= -10V
V
S(all)
= V
D
= 10V
V
S(all)
= V
D
= -10V
Drain On-
Leakage
Current
DG508A
I
D(ON)
DG509A
Sequence each
switch on,
V
A_L
= 0.8V,
V
A_H
= 2.4V
(Note 2)
LOGIC INPUT
Logic Input Current,
Input Voltage High
Logic Input Current,
Input Voltage Low
I
AH
I
AL
V
A_
= 2.4V
V
A_
= 15V
All V
A_
= 0V
μA
μA
Note 2:
I
D(ON)
is leakage from driver into on switch.
Note 3:
Off-isolation = 20log
IV
S
I
IV
D
I
V
S
= input to off switch,
V
D
= output due to V
S
.
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 Configurations
TOP VIEW
A0 1
EN 2
V- 3
S1 4
S2 5
S3 6
S4 7
D 8
16 A1
15 A2
14 GND
Pin Descriptions
PIN
DG508A
DIP/SO
1, 15, 16
—
2
3
4–7
—
DG509A
DIP/SO
—
1, 16
2
3
—
4–7
—
8, 9
—
10–13
14
15
A0, A2,
A1
A0, A1
EN
V-
S1–S4
S1A–S4A
D
DA, DB
S8–S5
S4B–S1B
V+
GND
Address Input
Address Input
Enable
Negative-Supply Voltage
Input
Analog Inputs,
Bidirectional
Analog Inputs,
Bidirectional
Analog Outputs,
Bidirectional
Analog Outputs,
Bidirectional
Analog Inputs,
Bidirectional
Analog Inputs,
Bidirectional
Positive-Supply Voltage
Input
Ground
NAME
FUNCTION
DG508A/DG509A
DG508A
13 V+
12 S5
11 S6
10 S7
9
S8
A0 1
EN 2
V- 3
S1A 4
S2A 5
S3A 6
S4A 7
DA 8
16 A1
15 GND
14 V+
8
—
9–12
—
13
14
DG509A
13 S1B
12 S2B
11 S3B
10 S4B
9
DB
DIP/SO
Functional Diagrams
V+
V-
GND
V+
V-
GND
S1
S2
S3
S4
S5
S6
S7
S8
DG508A CMOS
DECODE LOGIC
D
S1A
S2A
S3A
S4A
S1B
S2B
S3B
S4B
DG509A CMOS
DECODE LOGIC
DB
DA
A2
A1
A0
EN
A1
A0
EN
DG508A
8-CHANNEL SINGLE ENDED MULTIPLEXER
DG509A
DIFFERENTIAL 4-CHANNEL MULTIPLEXER
_______________________________________________________________________________________
5
Embedded System
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