Datasheet

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General Description

The MAX4741/MAX4742/MAX4743 are low on-resistance,

low-voltage, dual single-pole/single-throw (SPST) analog

switches that operate from a single +1.6V to +3.6V sup-

ply. These devices have fast switching speeds (t

24ns, t

OFF

= 16ns max), handle rail-to-rail analog signals,

and consume less than 1µW of quiescent power. The

MAX4743 has break-before-make switching.

When powered from a +3V supply, the MAX4741/

MAX4742/MAX4743 feature low 0.8Ω (max) on-resis-

tance (R

), with 0.08Ω (max) R

matching and

0.18Ω R

flatness. The digital logic input is 1.8V

CMOS compatible when using a single +3V supply.

The MAX4741 has two normally open (NO) switches,

the MAX4742 has two normally closed (NC) switches,

and the MAX4743 has one NO switch and one NC

switch. The MAX4741 is available in 8-pin µDFN (2mm

x 2mm), 8-pin SOT23, and 8-pin µMAX

packages. The

MAX4742/MAX4743 are available in 8-pin SOT23 and

8-pin µMAX packages.

Applications

Power Routing

Battery Powered Systems

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

Features

♦ Low R

0.8Ω max (+3V Supply)

2.5Ω max (+1.8V Supply)

♦ 0.18Ω max R

Flatness (+3V Supply)

♦ +1.6V to +3.6V Single-Supply Operation

♦ Available in SOT23 and µMAX Packages

♦ High-Current Handling Capacity (150mA

continuous)

♦ 1.8V CMOS Logic Compatible (+3V Supply)

♦ Fast Switching: t

= 24ns, t

OFF

= 16ns

MAX4741/MAX4742/MAX4743

0.8

Ω

, Low-Voltage, Single-Supply Dual SPST

Analog Switches

________________________________________________________________ Maxim Integrated Products 1

4GND

NO2

3IN2 6 COM2

2COM1

NO1 8

V+

IN1

TOP VIEW

µMAX

MAX4741

4GND

NC2

3IN2 6 COM2

2COM1

NO1 8

V+

IN1

µMAX

MAX4743

4GND

NC2

3IN2 6 COM2

2COM1

NC1 8

V+

IN1

µMAX

MAX4742

Pin Configurations

Ordering Information

19-2116; Rev 2; 12/06

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.

PART

PIN-

PACKAGE

TOP

MARK

PACKAGE

CODE

MAX4741EKA

8 SOT23-8 AAIY

K8S-3

MAX4741EUA

8 µMAX —

U8-1

MAX4741ELA

8 µDFN +AAV

L822-1

MAX4742EKA

8 SOT23-8 AAIZ

K8S-3

MAX4742EUA

8 µMAX —

U8-1

MAX4743EKA

8 SOT23-8 AAJA

K8S-3

MAX4743EUA

8 µMAX —

U8-1

SOT23-8 Pin Configurations continued at end of data sheet.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Note: All devices are specified over the -40°C to +85°C oper-

ating temperature range.

Summary of content (12 pages)

PAGE 1
9-2116; Rev 2; 12/06 0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches Features The MAX4741/MAX4742/MAX4743 are low on-resistance, low-voltage, dual single-pole/single-throw (SPST) analog switches that operate from a single +1.6V to +3.6V supply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching.
PAGE 2
MAX4741/MAX4742/MAX4743 0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND V+, IN_......................................................................-0.3V to +4V COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V) Continuous Current COM_ , NO_, NC_ .........................±150mA Peak Current COM_, NO_, NC_ (pulsed at 1ms 10% duty cycle)..................................
PAGE 3
0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches (V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at V+ = +3.0V, TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX 18 24 UNITS SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON Turn-Off Time tOFF Break-Before-Make (Note 6) tBBM VNO_, VNC_ = 1.5V, RL = 50Ω, CL = 35pF, Figure 1 VNO_, VNC_ = 1.5V, RL = 50Ω, CL = 35pF, Figure 1 VNO_, VNC_ = 1.
PAGE 4
MAX4741/MAX4742/MAX4743 0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches ELECTRICAL CHARACTERISTICS—Single +1.8V Supply (V+ = +1.8V, VIH = +1.0V, VIL = 0.4V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC_ 0 RON ICOM_ = 10mA, VNO_ or VNC_ = 0.9V NO_ or NC_ Off-Leakage Current INO_(OFF), INC_(OFF) VCOM_ = 0.3V, 1.
PAGE 5
0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches (V+ = +1.8V, VIH = +1.0V, VIL = 0.4V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS 0.
PAGE 6
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) LEAKAGE CURRENT vs. TEMPERATURE 24 tON, V+ = +1.8V 22 45 40 V+ = +3.3V 35 1000 20 16 30 ON Q (pC) ICOM (pA) tON, V+ = +3V 18 14 CHARGE INJECTION vs. OUTPUT VOLTAGE 10,000 MAX4741 toc05 MAX4741 toc04 26 OFF 100 tOFF, V+ = +1.8V 1 10 35 60 0 85 -40 TEMPERATURE (°C) -15 10 35 85 60 VCOM (V) LOGIC THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE ON-RESPONSE 1.
PAGE 7
0.
PAGE 8
0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743 Test Circuits/Timing Diagrams V+ OPEN V+ NO_ NO_ VNO_ IN_ 50% VNO_ VCOM_ COM_ 90% VCOM_ 50Ω 50% 0 MAX4741 IN_ tR < 5ns tF < 5ns VIH + 0.5V 50Ω GND 90% 0 35pF tON tOFF V+ OPEN V+ NC_ NC_ VIH + 0.5V VNC_ IN_ MAX4742 IN_ VCOM_ COM_ 50Ω 50% 50% 0 50Ω GND 35pF VNC_ VCOM_ 0 90% tOFF 90% tON V+ VS V+ NC_ NO_ VIH + 0.
PAGE 9
0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches V+ V+ 0.1µF NO_ OR NC_ VIN * MAX4741 MAX4742 MAX4743 COM_ V+ NETWORK ANALYZER 50Ω 50Ω VOUT MEAS REF IN_ GND 50Ω MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM AND “OFF” TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM AND “ON” TERMINAL ON EACH SWITCH. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
PAGE 10
0.
PAGE 11
0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches SOT23, 8L .EPS E Ø0.50±0.1 8 INCHES DIM A A1 A2 b H c D e E H 0.6±0.1 1 L 1 α 0.6±0.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.014 0.010 0.007 0.005 0.120 0.116 0.0256 BSC 0.120 0.116 0.198 0.188 0.026 0.016 6° 0° 0.0207 BSC 8LUMAXD.EPS 4X S 8 MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95 0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0° 6° 0.
PAGE 12
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.) A D XXXX XXXX XXXX b e 6, 8, 10L UDFN.EPS MAX4741/MAX4742/MAX4743 0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches N SOLDER MASK COVERAGE E PIN 1 0.