Datasheet

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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.

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

Ordering Information

-15V

ANALOG

OUTPUT

(INPUTS)

A0 A1 A2 EN

V+ V-GND

ANALOG

INPUT

(OUTPUTS)

+15V

ENABLE IN (MUX ON/OFF CONTROL)

CLOCK

N.C.

V+

r01 r02 GND

-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 pack-

age (except CERDIP). Specify lead-free by adding a plus (+)

to the part number when ordering.

Contact factory for dice specifications.

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 Plastic 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 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

8-CHANNEL SEQUENTIAL MUX/DEMUX

Typical Operating Circuits continued at end of data sheet.

Summary of content (9 pages)

PAGE 1
9-0028; 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.
PAGE 2
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 ........................
PAGE 3
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.
PAGE 4
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.
PAGE 5
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 An
PAGE 6
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.
PAGE 7
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.
PAGE 8
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.
PAGE 9
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.