Datasheet

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General Description

The MAX398/MAX399 precision, monolithic, CMOS ana-

log multiplexers (muxes) offer low on-resistance (less

than 100Ω), which is matched to within 6Ω between

channels and remains flat over the specified analog sig-

nal range (11Ω max). They also offer low leakage over

temperature (NO off-leakage current less than 2.5nA at

+85°C) and fast switching speeds (transition time less

than 250ns). The MAX398 is an 8-channel device, and

the MAX399 is a dual 4-channel device.

The MAX398/MAX399 are fabricated with Maxim’s low-

voltage silicon-gate process. Design improvements yield

extremely low charge injection (less than 5pC) and guar-

antee electrostatic discharge protection (ESD) greater

than 2000V.

These muxes operate with a single +3V to +15V supply or

bipolar ±3V to ±8V supplies, while retaining CMOS-logic

input compatibility and fast switching. CMOS inputs pro-

vide reduced input loading. The MAX398/MAX399 are

pin compatible with the industry-standard DG408,

DG409, DG508A, and DG509A.

Applications

Sample-and-Hold Circuits

Automatic Test Equipment

Heads-Up Displays

Guidance and Control Systems

Military Radios

Communications Systems

Battery-Operated Systems

PBX, PABX

Audio Signal Routing

Low-Voltage Data-Acquisition Systems

Features

♦ Pin Compatible with Industry-Standard

DG408/DG409/DG508A/DG509A

♦ Guaranteed On-Resistance Match

Between Channels (< 6Ω)

♦ Low On-Resistance (< 100Ω)

♦ Guaranteed Flat On-Resistance over Signal

Range (< 11Ω)

♦ Guaranteed Low Charge Injection (< 5pC)

♦ NO Off-Leakage Current < 1nA at +85°C

♦ COM Off-Leakage Current < 2.5nA at +85°C

♦ ESD Protection > 2000V

♦ +3V to +15V Single-Supply Operation

±3V to ±8V Bipolar-Supply Operation

♦ Low Power Consumption (< 300µW)

♦ Rail-to-Rail Signal Handling

♦ TTL/CMOS-Logic Compatible

MAX398/MAX399

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

________________________________________________________________ Maxim Integrated Products 1

GND

V+

N01

V-

TOP VIEW

MAX398

NO5

NO6

NO7

NO8

*EP = EXPOSED PAD, CONNECT EP TO V+.

COM

N04

N03

N02

DIP/SO/QSOP

QFN

GND

V+

NO1B

N01A

V-

MAX399

NO2B

NO3B

NO4B

COMB

COMA

N04A

N03A

N02A

DIP/SO/QSOP

GND

N04A

COMA

COMB

N04B

N01A

V-

N02A

N03A

N01B

V+

N02B

N03B

16 15 14

5678

MAX399

QFN

N04

COM

N08

N07

N01

V-

N02

N03

V+

GND

N05

N06

16 15 14

5678

MAX398

*EP *EP

Pin Configurations

19-0299; Rev. 6; 6/07

Ordering Information

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.

PART TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX398CGE

0°C to +70°C

16 QFN-EP*

G1655-3

MAX398CEE

0°C to +70°C 16 QSOP

E16-1

MAX398CSE

0°C to +70°C

16 Narrow

S16-1

MAX398CPE

0°C to +70°C

16 Plastic

P16-1

MAX398C/D 0°C to +70°C Dice** —

MAX398EGE

-40°C to + 85°C

16 QFN-EP*

G1655-3

MAX398EEE

-40°C to + 85°C 16 QSOP

E16-1

MAX398ESE

-40°C to + 85°C

16 Narrow

S16-1

MAX398EPE

-40°C to + 85°C

16 Plastic

P16-1

MAX398EJE -40°C to + 85°C

16 CERDIP

J16-1

MAX398MJE

-55°C to +125°C 16 CERDIP

J16-1

Ordering Information continued at end of data sheet.

*EP = Exposed pad.

**Contact factory for dice specifications.

Summary of content (20 pages)

PAGE 1
9-0299; Rev. 6; 6/07 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers The MAX398/MAX399 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 6Ω between channels and remains flat over the specified analog signal range (11Ω max). They also offer low leakage over temperature (NO off-leakage current less than 2.5nA at +85°C) and fast switching speeds (transition time less than 250ns).
PAGE 2
ABSOLUTE MAXIMUM RATINGS Voltage Referenced to GND V+ .......................................................................-0.3V to +17V V- ........................................................................+0.3V to -17V V+ to V-...............................................................-0.3V to +17V Voltage into Any Terminal (Note 1).........(V- - 2V) to (V+ + 2V) or 30mA (whichever occurs first) Current into Any Terminal ...................................................
PAGE 3
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers (V+ = +5V ±10%, V- = -5V ±10%, GND = 0, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS DIGITAL LOGIC INPUT Logic-High Input Voltage VAH, VENH TA = TMIN to TMAX Logic-Low Input Voltage VAL, VENL TA = TMIN to TMAX Input Current with Input-Voltage High IAH, IENH VA = VEN = 2.
PAGE 4
MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers ELECTRICAL CHARACTERISTICS—Single +5V (V+ = 5V ±10%, V- = 0, GND = 0, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL MIN CONDITIONS TYP MAX (Note 2) UNITS SWITCH Analog Signal Range VCOM, VNO (Note 3) V- V+ RON INO = 1mA, VCOM = 3.5V, V+ = 4.5V TA = +25°C TA = TMIN to TMAX 280 RON Matching Between Channels (Note 4) ΔRON INO = 1mA, VCOM = 3.
PAGE 5
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers (V+ = 5V ±10%, V- = 0, GND = 0, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.
PAGE 6
__________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) 100 100 90 300 250 70 60 V± = ±5V 80 TA = +125°C 70 TA = +85°C 60 TA = +25°C 50 50 40 40 30 RON (Ω) 225 V± = ±3V 80 -3 -2 -1 1 0 2 3 4 5 175 V+ = 3V 125 100 TA = -55°C V+ = 5V 75 50 -5 -4 -3 -2 -1 0 1 2 3 4 0 5 2 1 3 4 VCOM (V) VCOM (V) VCOM (V) ON-RESISTANCE vs.
PAGE 7
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers PIN MAX398 MAX399 QSOP/DIP/ SO NAME FUNCTION QSOP/DIP/ SO QFN 1, 15, 16 15, 14, 13 — — A0, A2, A1 — — 1, 16 15, 14 A0, A1 2 16 2 16 EN Enable Negative-Supply Voltage Input QFN Address Inputs Address Inputs 3 1 3 1 V- 4–7 2–5 — — N01–N04 Analog Inputs—Bidirectional — — 4–7 2–5 N01A–N04A Analog Inputs—Bidirectional 8 6 — — COM Analog Output—Bidirectional — — 8, 9 6, 7 COMA, COMB Analog
PAGE 8
MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers Applications Information +5V Operation with Supply Voltages Other than ±5V D1 V+ Using supply voltages less than ±5V reduces the analog signal range. The MAX398/MAX399 muxes operate with ±3V to ±8V bipolar supplies or with a +3V to +15V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies, such as +10V and -5V.
PAGE 9
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers +5V VEN V+ EN NO1 +5V NO2–NO8 A0 MAX398 A1 A2 COM GND 50Ω VOUT V- 35pF 1kΩ LOGIC INPUT VEN 50% 0 0 V+ EN +5V 90% MAX399 A1 COMB V- GND 50Ω NO1B 10% SWITCH OUTPUT VOUT NO1A–NO4A NO2B–NO4B, COMA A0 tOFF(EN) tON(EN) -5V +5V VEN tR < 20ns tF < 20ns +3V VOUT 35pF 1kΩ -5V Figure 3. Enable Switching Time +5V VEN +2.
PAGE 10
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers MAX398/MAX399 Test Circuits/Timing Diagrams (continued) +5V RS V+ NO VEN LOGIC INPUT VEN EN VS MAX398 A0 CHANNEL SELECT COM +3V OFF ON OFF 0 VOUT A1 A2 CL = 1000nF GND V- ΔVOUT VOUT ΔVOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. -5V Q = ΔVOUT x CL Figure 5.
PAGE 11
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers MAX398 V+ V- GND MAX399 NO1 NO1A NO2 NO3 NO2A NO3A NO4 COM V+ V- COMA NO4A NO5 NO1B NO6 NO7 NO2B NO3B NO8 NO4B COMB DECODERS / DRIVERS DECODERS / DRIVERS A0 A1 GND A2 EN A0 A1 MAX398 EN MAX399 A2 A1 A0 EN ON SWITCH A1 A0 EN ON SWITCH X X X 0 NONE X X 0 NONE 0 0 0 1 1 0 0 1 1 0 0 1 1 2 0 1 1 2 0 1 0 1 3 1 0 1 3 0 1 1 1 4 1 1 1 4 1 0 0 1 5 1
PAGE 12
MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers Ordering Information (continued) PART TEMP RANGE PINPACKAGE PKG CODE MAX399CGE 0°C to +70°C 16 QFN-EP* G1655-3 MAX399CEE 0°C to +70°C 0°C to +70°C 16 QSOP 16 Narrow E16-1 MAX399CSE MAX399CPE 0°C to +70°C 16 Plastic P16-1 MAX399C/D 0°C to +70°C MAX399EGE -40°C to + 85°C 16 QFN-EP* MAX399EEE -40°C to + 85°C 16 QSOP E16-1 MAX399ESE -40°C to + 85°C 16 Narrow S16-1 MAX399EPE -40°C to + 85°C 16
PAGE 13
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers 32L QFN.EPS ______________________________________________________________________________________ 13 MAX398/MAX399 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 14
MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 15
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers QSOP.EPS ______________________________________________________________________________________ 15 MAX398/MAX399 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 16
Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .
PAGE 17
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers PDIPN.EPS ______________________________________________________________________________________ 17 MAX398/MAX399 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 18
Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 12,16,20, 24L QFN.EPS MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers PACKAGE OUTLINE 12,16,20,24L QFN, 4x4x0.
PAGE 19
Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers PACKAGE OUTLINE 12,16,20,24L QFN, 4x4x0.90 MM 21-0106 E 2 2 ______________________________________________________________________________________ 19 MAX398/MAX399 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
PAGE 20
MAX398/MAX399 Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog Multiplexers Revision History REVISION NUMBER REVISION DATE 0 9/94 – — 1 9/94 Initial release of data sheet – 2 7/95 – – 3 7/96 – – 4 5/99 Errors in commercial data – DESCRIPTION PAGES CHANGED 5 6/99 Add QSOP Package – 6 10/01 Add QFN Package – 7 1/07 Add Exposed Pad info for QFN – 8 6/07 Exposed pad designation 1, 7, 12 Maxim cannot assume responsibility for use of any circuitry other than c