Datasheet

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General Description

The MAX4704 low-voltage, 4-channel analog multiplex-

er operates from a single +1.8V to +5.5V supply. The

MAX4704 features break-before-make switching action

with a t

= 60ns and t

OFF

= 20ns at +3V.

When powered from a +2.7V supply, the device has a

60Ω (max) on-resistance (R

), with 3Ω (max) R

matching and 5Ω max R

flatness. The digital logic

inputs are 1.8V-logic compatible from a +2.7V to +3.3V

supply. The MAX4704 is available in both a space-sav-

ing 12-pin QFN (3mm x 3mm) package and a 10-pin

µMAX package.

Applications

MP3 Players

Battery-Operated Equipment

Relay Replacement

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Features

♦ 3mm x 3mm 12-Pin QFN Package

♦ Guaranteed On-Resistance:

60Ω (max) (+2.7V Supply)

40Ω (max) (+5V Supply)

♦ Guaranteed Match Between Channels: 3Ω (max)

♦ Guaranteed Flatness Over Signal Range:

5Ω (max)

♦ Guaranteed Low Leakage Currents:

100pA (max) at +25°C

♦ Switching Time: t

= 60ns, t

OFF

= 20ns

♦ +1.8V to +5.5V Single-Supply Operation

♦ Rail-to-Rail Signal Handling

♦ -3dB Bandwidth: >200MHz

♦ Low Crosstalk: -90dB (1MHz)

♦ High Off-Isolation: -85dB (1MHz)

♦ Low 3pC Charge Injection

♦ THD: 0.02%

♦ +1.8V CMOS-Logic Compatible

MAX4704

Low-Voltage, 60

4:1 Analog Multiplexer in QFN

________________________________________________________________

Maxim Integrated Products

V+

COM

NO0

ADDAINH

NO1

NO3

NO2

MAX4704

μMAX

TOP VIEW

ADDBGND

X = DON’T CARE

N.C. = NO CONNECT

LOGIC

MAX4704

INH

ADDB

ADDA

ON SWITCH

NONE

COM-NO0

COM-NO1

COM-NO2

COM-NO3

COM

NO0

ADDA

9 ADDB

8 N.C.

7 GND

NO3

NO1

INH

1V+

2N.C.

3NO2

LOGIC

QFN

Pin Configurations

Ordering Information

19-2240; Rev 1; 10/08

PART TEMP. RANGE PIN-PACKAGE

MAX4704EGC

-40°C to +85°C 12 QFN-EP*

MAX4704EUB -40°C to +85°C 10 µMAX

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

EP = Exposed Pad

Summary of content (11 pages)

PAGE 1
9-2240; Rev 1; 10/08 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN Features ♦ 3mm x 3mm 12-Pin QFN Package The MAX4704 low-voltage, 4-channel analog multiplexer operates from a single +1.8V to +5.5V supply. The MAX4704 features break-before-make switching action with a tON = 60ns and tOFF = 20ns at +3V. When powered from a +2.7V supply, the device has a 60Ω (max) on-resistance (RON), with 3Ω (max) RON matching and 5Ω max RON flatness. The digital logic inputs are 1.8V-logic compatible from a +2.
PAGE 2
MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) V+ .............................................................................-0.3V to +6V All Other Pins (Note 1)................................ -0.3V to (V+ + 0.3V) Continuous Current COM, NO_ ........................................±20mA Peak Current COM, NO_ (pulsed at 1ms, 10% duty cycle)..................................±40mA ESD per Method 3015.7...........................................
PAGE 3
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN (V+ = +2.7V to +3.3V, VIH = +1.4V, VIL = +0.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and TA = +25°C.
PAGE 4
MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) (V+ = +4.5V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and TA = +25°C.) (Notes 2, 3) PARAMETER COM Off-Leakage Current SYMBOL ICOM(OFF) CONDITIONS V+ = +5.5V, VCOM_ = +0.5V, +5V VNO_ = +5V, +0.5V TA MIN TYP MAX +25°C -0.5 ±0.01 0.
PAGE 5
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ON-RESISTANCE VS. VCOM (V+ = 3V) 80 V+ = 1.8V RON (Ω) V+ = 3.0V 30 V+ = 5.0V 20 TA = +85°C 15 TA = +25°C TA = -40°C 10 10 5 5 10 0 0 0 1 2 3 4 0 0 5 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 VCOM (V) VCOM (V) VCOM (V) SUPPLY CURRENT VS. TEMPERATURE SUPPLY CURRENT VS. LOGIC INPUT VOLTAGE COM ON-LEAKAGE CURRENT vs.
PAGE 6
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) CHARGE INJECTION vs. VCOM 20 9 8 LOSS (dB) tOFF, V+ = 3V 5 4 V+ = 5V 3 tOFF, V+ = 5V 5 2 V+ = 3V 1 0 0 -15 10 35 1 2 3 4 5 0.01 0.1 1 10 100 FREQUENCY (MHz) THD vs. FREQUENCY ADDRESS TRANSITION TIME vs. SUPPLY VOLTAGE ADDRESS TRANSITION TIME vs. TEMPERATURE Vp-p = 1V RIN = ROUT = 600Ω 100 MAX4704 toc14 25 tLH 20 15 tHL 10 5 0 1k FREQUENCY (Hz) 10k 100k 25 ADDRESS TRANSITION TIME (ns) 0.
PAGE 7
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN PIN NAME FUNCTION µMAX QFN-EP 10 1 — 2, 8 N.C. No Connection. Not internally connected. 1 3 NO2 Analog Switch 2. Normally open. 2 4 NO3 Analog Switch 3. Normally open. 3 5 NO1 Analog Switch 1. Normally open. V+ Positive Supply Voltage 4 6 INH Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn all switches off.
PAGE 8
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN MAX4704 Test Circuits/Timing Diagrams V+ V+ VADD 50% VADD V+ NO0 ADDA ADDB VNO_ 0 NO1–NO2 MAX4704 INH VNO0 90% 90% NO3 COM VOUT GND 35pF VOUT 0 300Ω tTRANS tTRANS Figure 2. Address Transition Time V+ V+ NO0 ADDA ADDB 50% VINH V+ VNO_ 0 NO1–NO3 VNO0 90% MAX4704 VINH INH COM VOUT GND 35pF 90% VOUT 0 300Ω tON tOFF Figure 3.
PAGE 9
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN V+ V+ VINH VNO = 0 V+ NO_ CHANNEL SELECT 0 ADDB ADDA MAX4704 Δ VOUT VOUT VINH INH VOUT COM CL 1000pF GND Δ VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = Δ VOUT X CL REPEAT TEST FOR EACH SECTION. Figure 5. Charge Injection V+ 10nF VIN V+ CHANNEL SELECT NO_ ADDA ADDB NETWORK ANALYZER 50Ω 50Ω OFF-ISOLATION = 20log MAX4704 ON-LOSS = 20log VOUT INH COM MEAS. REF.
PAGE 10
MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. 10 PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
PAGE 11
Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN REVISION NUMBER REVISION DATE 0 10/01 Initial release 1 10/08 Inserted exposed paddle description DESCRIPTION PAGES CHANGED ⎯ 1, 7 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.