Datasheet

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_______________General Description

Maxim’s redesigned DG408 and DG409 CMOS analog

multiplexers now feature guaranteed matching between

channels (8Ω max) and flatness over the specified sig-

nal range (9Ω max). These low on-resistance muxes

(100Ω max) conduct equally well in either direction and

feature guaranteed low charge injection (15pC max). In

addition, these new muxes offer low input off-leakage

current over temperature—less than 5nA at +85°C.

The DG408 is a 1-of-8 multiplexer/demultiplexer and

the DG409 is a dual 4-channel multiplexer/demultiplex-

er. Both muxes operate with a +5V to +30V single sup-

ply and with ±5V to ±20V dual supplies. ESD protection

is guaranteed to be greater than 2000V per Method

3015.7 of MIL-STD-883. These improved muxes are

pin-compatible plug-in upgrades for the industry stan-

dard DG408 and DG409.

Applications

Sample-and-Hold Circuits

Test Equipment

Guidance and Control Systems

Communications Systems

Data-Acquisition Systems

Audio Signal Routing

____________________________Features

♦ Pin-Compatible Plug-In Upgrades for

Industry Standard DG408/DG409

♦ Guaranteed Matching Between Channels, 8Ω Max

♦ Guaranteed On-Resistance Flatness, 9Ω Max

♦ Guaranteed Low Charge Injection, 15pC Max

♦ Low On-Resistance, 100Ω Max

♦ Input Leakage, 5nA Max at +85°C

♦ Low Power Consumption, 1.25mW Max

♦ Rail-to-Rail Signal Handling

♦ Digital Input Controls TTL/CMOS Compatible

♦ ESD Protection >2000V per Method 3015.7

DG408/DG409

Improved, 8-Channel/Dual 4-Channel,

CMOS Analog Multiplexers

________________________________________________________________

Maxim Integrated Products

GND

V+

V-

TOP VIEW

DG408

DIP/SO/TSSOP

DG409 appears at end of data sheet.

DECODERS/DRIVERS

A0 A1 A2 EN

V+ V- GND

DG409 appears at end of data sheet.

DG408 1-of-8 MUX/DEMUX

Pin Configurations

Functional Diagrams

19-4725; Rev 4; 9/08

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.

Ordering Information

Ordering Information continued at end of data sheet.

Contact factory for dice specifications.

Contact factory for availability and processing to MIL-STD-883.

PART TEMP RANGE PIN-PACKAGE

DG408CUE 0°C to +70°C 16 TSSOP

DG408CJ 0°C to +70°C 16 Plastic DIP

DG408CY 0°C to +70°C 16 Narrow SO

DG408C/D 0°C to +70°C Dice*

DG408EUE 0°C to +70°C 16 TSSOP

DG408DJ -40°C to +85°C 16 Plastic DIP

DG408DY -40°C to +85°C 16 Narrow SO

Summary of content (12 pages)

PAGE 1
9-4725; Rev 4; 9/08 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers Maxim’s redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max). These low on-resistance muxes (100Ω max) conduct equally well in either direction and feature guaranteed low charge injection (15pC max). In addition, these new muxes offer low input off-leakage current over temperature—less than 5nA at +85°C.
PAGE 2
DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+ ............................................................................-0.3V, 44V GND .........................................................................-0.3V, 25V Digital Inputs, S, D (Note 1)....................(V- - 2V) to (V+ + 2V) or 30mA, (whichever occurs first) Continuous Current (any terminal) ......................................
PAGE 3
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers (V+ = 15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS INPUT Input Current with Input Voltage High IAH VA = 2.4V or 15V -1.0 1.0 µA Input Current with Input Voltage Low IAL VEN = 0V or 2.4V, VA = 0V -1.0 1.0 µA ±20 30 75 0.5 2 1 10 V SUPPLY Power-Supply Range ±5 VEN = VA = 0V or 4.
PAGE 4
DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ELECTRICAL CHARACTERISTICS—Single Supply (V+ = 12V, V- = 0V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS SWITCH Analog Signal Range VANALOG (Note 3) 0 12 V rDS(ON) IS = -1.
PAGE 5
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ON-RESISTANCE vs. VD AND TEMPERATURE (DUAL SUPPLIES) ±5V +85°C 60 +25°C -55°C 40 ±20V 280 rDS(ON) (Ω) ±15V 40 5V 240 200 160 10V 120 20 20 0 -10 -5 0 5 10 15 20 -15 -10 -5 VD (V) 5 10 0 15 5 10 20 ON LEAKAGE vs. TEMPERATURE 1000 DG408/9 TOC-05 DG408/9 TOC-04 1000 V+ = 15V V- = -15V 100 15 VD (V) OFF LEAKAGE vs. TEMPERATURE V+ = 15V V- = 0V 140 0 VD (V) ON-RESISTANCE vs.
PAGE 6
DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ______________________________________________________________Pin Description PIN NAME FUNCTION DG408 DG409 1, 15, 16 — A0, A2, A1 Address Inputs — 1, 16 A0, A1 Address Inputs 2 2 EN Enable Input 3 3 V- Negative Supply Voltage Input 4–7 — S1–S4 Bidirectional Analog Inputs — 4–7 S1A–S4A Bidirectional Analog Inputs 8 — D Bidirectional Analog Output — 8, 9 DA, DB Bidirectional Analog Outputs 9–12 —
PAGE 7
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers +15V V+ ±10V S1 A2 A1 S2-S7 A0 DG408 S8 EN +10V D GND VOUT V- LOGIC INPUT 50% 35pF 50Ω 0V 300Ω -15V +15V VS1 V+ SWITCH OUTPUT VOUT ±10V S1B A1 90% 0V A0 90% S1A-S4A VS8 or VS4B S4B DG409 EN +10V tTRANS (ON) DB GND tR < 20ns tF < 20ns +3V V- 50Ω tTRANS (OFF) VOUT 35pF 300Ω -15V Figure 2.
PAGE 8
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409 Test Circuits/Timing Diagrams (continued) +15V +2.4V V+ EN S1-S8 LOGIC INPUT +5V tR < 20ns tF < 20ns +3V 50% 0V A0 A1 VOUT DG408 80% A2 D GND SWITCH OUTPUT VOUT V- 35pF tOPEN 0V 300Ω 50Ω -15V Figure 4.
PAGE 9
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers +15V 10nF +15V VIN S1 VIN V+ V+ S1 S2 RS = 50Ω 10nF EN +2.4V D VOUT S8 A0 D A1 DG408 RL = 1kΩ A2 EN GND S8 VOUT RS = 50Ω DG408 A0 A1 RL = 1kΩ A2 V- V- GND 10nF -15V OFF ISOLATION = 20log 10nF -15V VOUT VIN CROSSTALK = 20log Figure 6. Off Isolation VOUT VIN Figure 7. Crosstalk +15V V+ S1 A2 CHANNEL SELECT DG408 A1 S8 A0 Meter Impedance Analyzer or Equivalent D GND EN V- f = 1MHz -15V Figure 8.
PAGE 10
DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers Pin Configurations/Functional Diagrams/Truth Tables (continued) TOP VIEW V+ V- GND S1A A0 1 16 A1 S2A EN 2 15 GND S3A V- 3 14 V+ S4A S1A 4 DG409 13 S1B S2A 5 12 S2B S3A 6 11 S3B S4A 7 10 S4B DA S1B S2B DA 8 9 DB DB S3B S4B CMOS DECODE LOGIC DIP/SO/TSSOP A1 EN A0 DG409 4-CHANNEL DIFFERENTIAL MUX/DEMUX A2 A1 A0 EN ON SWITCH X 0 0 0 X 0 0 1 X 0 1 0 0 1 1 1 None 1 2 3 0 1 1 1 0 0 1 0 1 1 1 1
PAGE 11
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers PART TEMP RANGE PIN-PACKAGE DG408DK -40°C to +85°C 16 CERDIP DG408AK -55°C to +125°C 16 CERDIP** Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
PAGE 12
DG408/DG409 Improved, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers Revision History REVISION NUMBER REVISION DATE 3 8/02 Changed operating voltage and TSSOP packaging 4 9/08 Added rugged plastic information DESCRIPTION PAGES CHANGED ⎯ 1, 11 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.