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