MAXIM DG508A, DG509A User Manual

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 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

Control Systems

Data Logging Systems

Aircraft Heads-Up Displays

Data-Acquisition Systems

Signal Routing

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

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

S1

-15V

D

ANALOG
OUTPUT
(INPUTS)

A0 A1 A2 EN

S2

V+ V-GND

ANALOG

INPUT

(OUTPUTS)

+15V

+15V

ENABLE IN (MUX ON/OFF CONTROL)

CLOCK

IN

N.C.

N.C.

B

IN

Q

B

Q

C

Q

D

Q

A

V+

A

IN

r01 r02 GND

S3
S4
S5
S6
S7
S8

-15V

DG508A

Typical Operating Circuits

19-0028; Rev 4; 5/10

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.

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.

8-CHANNEL SEQUENTIAL MUX/DEMUX

Typical Operating Circuits continued at end of data sheet.

PART TEMP RANGE PIN-PACKAGE

DG508ACJ 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

DG508ADJ -40°C to +85°C 16 Pla st ic DIP

DG508ADY -40°C to +85°C 16 Narrow SO

DG508AEWE -40°C to +85°C 16 Wide SO

DG508AAK -55°C to +125°C 16 CERDIP

DG508AMY/PR -55°C to +125°C 16 Narrow SO

DG509ACJ 0°C to +70°C 16 Plastic DIP

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 Pla st ic 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

Monolithic CMOS Analog Multiplexers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V+ = 15V, V- = -15V, V

GND

= 0V, TA= +25°C, unless otherwise noted.)

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.

Voltage Referenced to V-

V+ .....................................................................................+44V

GND ................................................................................. +25V

Digital Inputs, V

S

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 (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

DG508A/DG509A

Note 1: Signals on S_ or D_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current ratings

PARAMETER S YMBOL CONDITIONS

SWITCH

Analog Signal

Drain-Source On­Resistance

Greatest Change
in Drain-Source
On-Resistance
Between Channels

Source Off­Leakage Current

Drain Off-

DG508A

Leakage
Current

Drain On-

DG509A

DG508A

Leakage
Current

DG509A

V

R

R

-15 +15 -15 +15 V

ANALOG

VD = 10V,
I

S

VD = -10V,
I

S

max  R

R

DS(ON)

VS = 10V, VD = -10V 0.002 0.5 0.002 1

= -10V, VD = 10V -0.5 -0.005 -1 -0.005

V

S

DS(ON)

DS(ON)

I

S(OFF)

Sequence each
switch on,
V

= 0.8V,

A_L

= 2.4V (Note 4)

V

A_H

R

DS(ON)

V

-10V 

VEN = 0V



R

=




S  10V

DS(ON)

VD = 10V, VS = -10V 0.01 2 0.01 5

= -10V, VS = 10V -2 -0.015 -5 -0.015

V

I

D(OFF)

I

D(ON)

VEN = 0V

Sequence each
switch on,
V

= 0.8V

A_L

= 2.4V

V

A_H

(Note 2)

D

VD = 10V, VS = -10V 0.005 2 0.005 5

= -10V, VS = 10V -2 -0.008 -5 -0.008

V

D

V

= VD = 10V 0.015 2 0.015 5

S(all)

= VD = -10V -2 -0.03 -5 -0.03

V

S(all)

V

= VD = 10V 0.007 2 0.007 5

S(all)

V

= VD = -10V -2 -0.015 -5 -0.015

S(all)

= -200μA

= 200μA

DG508AA/M
DG509AA/M

DG508AD/E/B/C
DG509AD/E/B/C

MIN TYP MAX MIN TYP MA X

170 400 170 450

130 400 130 450



min

DS(ON)



6 6 %



UNITS



nA

nA

nA

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 15V, V- = -15V, V

GND

= 0V, TA= +25°C, unless otherwise noted.)

PARAMETER S YMBOL CONDITIONS

LOGIC INPUT

Logic Input Current,
Input Voltage High

Logic Input Current,
Input Voltage Low

DYNAMIC

Multiplexer Switch ing

Break-Before-Make
Interval

Enable Turn-On Time t

Enable Turn-Off Time t

Off-Isolat ion OIRR

Source Off-Capacitance C

Drain Off­Capacitanc

SUPPLY

Positive Supply Current I+ VEN = 2.4V, all VA_ = 0V or 2.4V 0.02 0.2 0.02 0.2 mA

Negative Supply Current I- VEN = 2.4V, all VA_ = 0V or 2.4V -0.1 -0.01 -0.1 -0.01 mA

Positive Supply Current
in Standby

Negative Supply Current
in Standby

Power-Supply Range for
Continuou s Operation

IDG508A 25 25

DGS09A

V

= 2.4V -10

I

AH

I

AL

t

transi tion

t

OPEN

ON(EN)

OFF(EN)

S(OFF)

C

D(OFF)

I+ V

I- V

V-, V+ (Notes 4, 5) ±4.5 ±18.0 ±4.5 ±18.0 V

A_

V

= 15V 0.006 10 0.006 10

A_

All VA_ = 0V

Figure 1 0.6 1. 0 0.6 1. 0 μs

Figure 3 0.2 0.2 μs

Figure 2 0.4 1.0 0.4 1.5 μs

Figure 2 0.2 0.7 0.2 1.0 μs

V

= 0V, RL= 1k, CL = l5pF,

EN

V

= 7V

S

RMS

VS = 0V, VEN = 0V, f = 140kHz 5 5 pF

VS = 0V, VEN = 0V, f = 140kHz

= 0V, all VA_ = 0V or 2.4V 0.02 0.2 0.02 0.2 mA

EN

= 0V, all V

EN

VEN = 2.4V -10

= 0V -10

V

EN

f = 500kHz (Note 3)

= 0V or 2.4V -0.1 -0.01 -0.1 -0.01 mA

A_

DG508AA/M
DG509AA/M

MIN TYP MA X MIN TY P MAX

-

-

-

68 68 dB

12 12

DG508AD/E/B/C
DG509AD/E/B/C

10 -0.002

10 -0.002

-10 -0.002

UNITS

μA

μA

pF

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS

(V+ = 15V, V

GND

= 0V, TA= T

MIN

to T

MAX

, unless otherwise noted.)

Note 2: I

D(ON)

is leakage from driver into on switch.

Note 3: Off-isolation = 20log

V

S

= 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.

PARAMETER S YMBOL CONDITIONS

SWITCH

Analog Signal
Range

Drain-Source On­Resistance

Source Off-Leakage
Current

Drain Off­Leakage
Current

Drain On­Leakage
Current

LOGI C I N P UT

Logic Input Current,
Input Voltage High

Logic Input Current,
Input Voltage Low

DG508A

DG509A

DG508A

DG509A

V

R

-15 +15 -15 +15 V

ANALOG

DS(ON)

I

VEN = 0V

S(OFF)

I

VEN = 0V

D(OFF)

I

D(ON)

I

AH

I

All VA_ = 0V

AL

DG508AA/M
DG509AA/M

MIN TYP MA X MIN TYP MAX

Sequence each
switch on,
V

= 0.8V,

A_L

V

= 2.4V

A_H

VD = 10V,
I

= -200μA

S

V

= -10V,

D

I

= 200μA

S

500 550

500 550

VS = 10V, VD = -10V +50 +50

= -10V, VD = -10V -50 -50

V

S

VD = 10V, VS = -10V +200 +100

= -10V, VS = -10V -200 -200

V

D

VD = 10V, VS = -10V +200 +100

= -10V, VS = -10V -100 -100

V

D

V

= VD = 10V +200 +100

Sequence each
switch on,
V

= 0.8V,

A_L

V

= 2.4V

A_H

(Note 2)

S(all)

= VD = -10V -200 -100

V

S(all)

V

= VD = 10V +100 +100

S(all)

= VD = -10V -100 -100

V

S(all)

VA_ = 2.4V -30 -30

VA_ = 15V +30 +30

VEN = 2.4V -30 -30

= 0V -30 -30

V

EN

DG508AD/E/B/C
DG509AD/E/B/C

UNITS



nA

nA

nA

μA

μA

IV I

S

IV I

D

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

_______________________________________________________________________________________ 5

Pin Descriptions

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

A0

A1

A2

GND

V+

S5

S6

S7

S8

TOP VIEW

DG508A

EN

V-

S3

S1

S2

S4

D

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

A0

A1

GND

V+

S1B

S2B

S3B

S4B

DB

DG509A

DIP/SO

EN

V-

S3A

S1A

S2A

S4A

DA

Pin Configurations

Functional Diagrams

V+

D

A2 A1 A0 EN

V- GND

S1

S2

S3

S4

S5

S6

S7

S8

DG508A CMOS

DECODE LOGIC

DG508A

8-CHANNEL SINGLE ENDED MULTIPLEXER

V+

DA

A1 A0 EN

V- GND

DB

S1A

S2A

S3A

S4A

S1B

S2B

S3B

S4B

DG509A CMOS
DECODE LOGIC

DG509A

DIFFERENTIAL 4-CHANNEL MULTIPLEXER

PIN

DG508A DG509A

DIP/ SO DI P/SO

1, 15, 16 —

— 1, 16 A0, A1 Address Input

2 2 EN Enable

3 3 V-

4–7 — S1–S4

— 4–7 S1A–S4A

8 — D

— 8, 9 DA, DB

9–12 — S8–S5

— 10–13 S4B–S1B

13 14 V+

14 15 GND Ground

NAME FUNCTION

A0, A2,

A1

Address Input

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

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

6 _______________________________________________________________________________________

Figure 1a. Switching-Time Test Circuit

DG508A

EN

V+

S1 -5V

SWITCH
OUTPUT
V

D

35pF

1kΩ

S2–S7

D

+15V

A0

A1

A2

GND

-15V

50Ω

LOGIC
INPUT

V-

Figure 2a. DG508A Enable-Time Test Circuit

DG509A

EN

V+

S1B -5V

SWITCH
OUTPUT
V

DS

35pF

1kΩ

S1A–S4A,

DA, S2B, S3B

DB

+15V

A0

A1

GND

-15V

50Ω

LOGIC
INPUT

V-

Figure 2b. DG509A Enable-Time Test Circuit

Figure 1b. Switching-Time Test Circuit

+2.4V +15V

DG508A

V+

S2–S7

V-

-15V

LOGIC
INPUT

EN S1 ±10V

A0

A1

A2

GND

50Ω

+2.4V +15V

DG509A

V+

S1A–S4A,

DA, S2B, S3B

S4B

V-

-15V

1MΩ

SWITCH
OUTPUT
V

DS

35pF

DB

EN S1 ±10V

S8

1MΩ

SWITCH
OUTPUT
V

D

35pF

LOGIC
INPUT

D

50Ω

A0

A1

GND

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

_______________________________________________________________________________________ 7

Figure 3. Break-Before-Make Test Circuit

t

open

t

transition

t

transition

t

OFF

(EN)

t

ON

(EN)

S8ON

3V

LOGIC INPUT

t

r

< 20ns

t

f

< 20ns

SWITCH
OUTPUT

V

D

(SEE FIG. 1)

TRANSITION

TIME

SWITCH
OUTPUT

V

D

(SEE FIG. 2)

TENABLE t

(ON) t(OFF)

TIME

SWITCH
OUTPUT

V

D

(SEE FIG. 3)
OPEN TIME

(B.B.M INTERVAL)

50%

0

V

S1

V

S8

0.8V

S1

V

0

V

S

V

S

50%

0V

0.9V

0

0.1V

0

0.8V

S8

0

0

S

1

ON

Figure 4. Timing Diagram for Figures 1, 2, and 3

Table 1a. DG508A Truth Table

Table 1b. DG509A Truth Table

X = Don’t care.

X = Don’t care.

+2.4V +15V

EN

LOGIC
INPUT

50Ω

A0, A1, (A2)

GND

DG508A
DG509A

AND DA

V-

-15V

ALL S

DB, D

+5V

1kΩ

A2 A1 A0 EN ON SWITCH

X X X 0 NONE

0001 1

0011 2

0101 3

0111 4

1001 5

1011 6

1101 7

1111 8

SWITCH
OUTPUT
V

D

35pF

A1 A0 EN ON SWITCH

X X 0 NONE

0011

0112

1013

1114

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

8 _______________________________________________________________________________________

Typical Operating

Circuits (continued)

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

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.

-15V

V+ V-GND

S1A

DIFFERENTIAL

ANALOG

INPUTS

(OUTPUTS)

+15V

CLOCK IN

RESET ENABLE

J

1/2MM747C73

CLOCK CLOCK

K

CLEAR GND

DIFFERENTIAL 4-CHANNEL SEQUENTIAL MUX/DEMUX

S2A
S3A
S4A
S1B
S2B
S3B
S4B

Q

Q

-15V

DG509A

A0

A1

N.C.

DA

DB

EN

J

1/2MM747C73

K

DIFFERENTIAL
ANALOG
OUTPUTS
(INPUTS)

Q

Q

DG508A/DG509A

Monolithic CMOS Analog Multiplexers

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.

Revision History

REVISION

NUMBER

4 5/10

REVISION

DATE

DESCRIPTION

Updated the “Drain-Source On-Resistance” parameter for both the TA = +25°C and
T

= T

MIN

to T

A

Deleted the QFN package from the Ordering Information, Absolute Maximum Ratings,
Pin Conf igurations, Pin Descriptions, and Package Information sections.

Added the DG508AMY/PR and DG509AMY/PR parts to the Ordering Information table. 1

conditions.

MAX

PAGES

CHANGED

2, 4

1, 2, 5, 8