0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741

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0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741

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19-2116; 7/01
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
MAX4741/MAX4742/MAX4743 on-resistance, low-voltage, dual single-pole/single-throw (SPST) analog switches that operate from single +1.6V +3.6V supply. These devices have fast switching speeds (tON 24ns, tOFF 16ns max), handle Rail-toRail® analog signals, consume less than quiescent power. MAX4743 break-beforemake switching. When powered from supply, MAX4741/ MAX4742/MAX4743 feature (max) on-resistance with 0.08 (max) matching 0.18 flatness. digital logic input 1.8V CMOS compatible when using single supply. MAX4741 normally open (NO) switches, MAX4742 normally closed (NC) switches, MAX4743 switch switch. MAX4741/MAX4742/MAX4743 available 8-pin SOT23 8-pin µMAX packages. RON: (+3V Supply) (+1.8V Supply) 0.18 Flatness (+3V Supply) +1.6V +3.6V Single-Supply Operation Available SOT23 µMAX Packages High-Current Handling Capacity (150mA continuous) 1.8V CMOS Logic Compatible (+3V Supply) Fast Switching: 24ns, tOFF 16ns
Features
MAX4741/MAX4742/MAX4743
Ordering Information
PART MAX4741EKA MAX4741EUA MAX4742EKA MAX4742EUA MAX4743EKA MAX4743EUA TEMP. RANGE -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C -40°C +85°C PINPACKAGE SOT23-8 µMAX SOT23-8 µMAX SOT23-8 µMAX MARK AAIY AAIZ AAJA
Applications
Power Routing Battery Powered Systems Audio Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits PCMCIA Cards Cellular Phones Modems Hard Drives
Configurations
VIEW
MAX4741 MAX4742
COM1
COM2
COM1
COM2
COM1
MAX4743
COM2
µMAX SOT23-8 Configurations continued data sheet. Rail-to-Rail registered trademark Nippon Motorola, Inc.
µMAX
µMAX
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced IN_.-0.3V COM_, NO_, (Note .-0.3V 0.3V) Continuous Current COM_ NO_, .±150mA Peak Current COM_, NO_, (pulsed duty cycle).±300mA Continuous Power Dissipation +70°C) 8-Pin SOT23 (derate 7.52mW/°C above +70°C).602mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) .362mW Operating Temperature Range .-40°C +85°C Maximum Junction Temperature .+150°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) .+300°C
Note Signals COM_, NO_, exceeding clamped internal diodes. Limit forward current maximum current rating.
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS-Single Supply
+2.7V +3.6V, +1.4V, +0.5V, TMIN TMAX, unless otherwise specified. Typical values +3.0V, +25°C.) (Notes
PARAMETER ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC_ 2.7V, ICOM_ 100mA, VNO_ VNC_ 1.5V 2.7V, ICOM_ 100mA, VNO_ VNC_ 1.5V 2.7V, ICOM_ 100mA, VNO_ VNC_ 1.5V, 3.3V, VCOM_ 0.3V, VNO_ VNC_ 0.3V 3.3V, VCOM_ 0.3V, VNO_ VNC_ 0.3V floating 3.3V, VCOM_ 0.3V; VNO_ VNC_ 0.3V floating +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX 0.05 0.05 SYMBOL CONDITIONS UNITS
0.08 0.09 0.18 0.20
On-Resistance
On-Resistance Match Between Channels (Note
On-Resistance Flatness (Note
RFLAT(ON)
Off-Leakage Current
INO_(OFF), INC_(OFF)
COM_ Off-Leakage Current
ICOM_(OFF)
COM_ On-Leakage Current
ICOM_(ON)
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
ELECTRICAL CHARACTERISTICS-Single Supply (continued)
+2.7V +3.6V, +1.4V, +0.5V, TMIN TMAX, unless otherwise specified. Typical values +3.0V, +25°C.) (Notes
PARAMETER SYMBOL CONDITIONS UNITS
MAX4741/MAX4742/MAX4743
SWITCH DYNAMIC CHARACTERISTICS VNO_, VNC_ 1.5V, 35pF, Figure VNO_, VNC_ 1.5V, 35pF, Figure VNO_, VNC_ 1.5V, 35pF, Figure (MAX4743) VGEN RGEN 1.0nF, Figure 1MHz, Figure 1MHz, Figure 1MHz, Figure Signal ROUT 5pF, Figure 1MHz, VCOM_ 1VRMS, 5pF, Figure 1MHz, VCOM_ 1VRMS, 5pF, Figure 20Hz 20kHz, VCOM_ 2Vp-p, +25°C +25°C +25°C +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C +25°C +25°C +25°C -110 0.02
Turn-On Time
Turn-Off Time
tOFF
Break-Before-Make (Note
tBBM
Charge Injection OffCapacitance COM_ Off-Capacitance COM_ On-Capacitance -3dB On-Channel Bandwidth Off-Isolation (Note Crosstalk (Note Total Harmonic Distortion LOGIC INPUT Input Logic High Input Logic Input Leakage Current POWER SUPPLY Power-Supply Range Positive Supply Current
COFF CCOM_(OFF) CCOM_(ON) VISO
3.6V, VIN_ channels +25°C VIN_
0.005
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
ELECTRICAL CHARACTERISTICS-Single +1.8V Supply
+1.8V, +1.0V, 0.4V, TMIN TMAX, unless otherwise specified. Typical values +25°C.) (Notes
PARAMETER ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC_ INO_(OFF), INC_(OFF) ICOM_ 10mA, VNO_ VNC_ 0.9V VCOM_ 0.3V, 1.5V; VNO_ VNC_ 1.5V, 0.3V VCOM_ 0.3V, 1.5V; VNO_ VNC_ 1.5V, 0.3V VCOM_ 0.3V, 1.5V, VNO_ VNC_ 0.3V, 1.5V, floating +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX SYMBOL CONDITIONS UNITS
On-Resistance Off-Leakage Current
COM_ Off-Leakage Current
ICOM_(OFF)
COM_ On-Leakage Current
ICOM_(ON)
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time VNO_, VNC_ 1.5V, 35pF, Figure VNO_, VNC_ 1.5V, 35pF, Figure VNO_, VNC_ 1.5V, 35pF, Figure (MAX4743) VGEN RGEN 1nF, Figure 1MHz, VNO_ VNC_ 1VRMS, 5pF, Figure 1MHz, VCOM_ 1VRMS, 5pF, Figure +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C
Turn-Off Time
tOFF
Break-Before-Make (Note
tBBM
Charge Injection
Off-Isolation (Note
VISO
+25°C
Crosstalk (Note
+25°C
-110
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
ELECTRICAL CHARACTERISTICS-Single +1.8V Supply (continued)
+1.8V, +1.0V, 0.4V, TMIN TMAX, unless otherwise specified. Typical values +25°C.) (Notes
PARAMETER LOGIC INPUT Input Logic High Input Logic Input Leakage Current VIN_ SYMBOL CONDITIONS UNITS
MAX4741/MAX4742/MAX4743
Note algebraic convention, where most negative value minimum most positive value maximum, used this data sheet. Note SOT23 packaged parts 100% tested +25°C. Limits across full temperature range guaranteed design correlation. µMAX packaged parts -40°C specifications guaranteed design. Note RON(MAX) RON(MIN). Note Flatness defined difference between maximum minimum value on-resistance measured over specified analog signal ranges. Note Guaranteed design. Note Off-Isolation 20log10(VCOM_/VNO_), VCOM_ output, VNO_ input switch. Note Between switches.
Typical Operating Characteristics
+25°C, unless otherwise noted.)
ON-RESISTANCE VCOM TEMPERATURE
MAX4741 toc02 MAX4741 toc01
ON-RESISTANCE VCOM
VCOM +1.8V
TURN-ON/OFF TIME SUPPLY VOLTAGE
tON/tOFF (ns) tOFF
MAX4741 toc03
ICOM 100mA
+2.0V +2.5V +2.7V +3.0V +3.3V
+85°C
-40°C
+25°C
+3.6V
+2.7V ICOM 100mA VCOM
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
Typical Operating Characteristics (continued)
+25°C, unless otherwise noted.)
TURN-ON/OFF TIME TEMPERATURE
MAX4741 toc04
LEAKAGE CURRENT TEMPERATURE
MAX4741 toc05
CHARGE INJECTION OUTPUT VOLTAGE
+3.3V
MAX4741 toc06
tON/tOFF (ns) tON, tON, +1.8V
10,000
1000 ICOM (pA) (pC) tOFF, TEMPERATURE (°C) TEMPERATURE (°C) VCOM +1.8V
tOFF, +1.8V
FREQUENCY RESPONSE
MAX4741 toc07
LOGIC THRESHOLD VOLTAGE SUPPLY VOLTAGE
MAX4741 toc08
THRESHOLD RISING FALLING
LOSS (dB) -105 -120 0.01
ON-RESPONSE
OFF-ISOLATION CROSSTALK
1000
FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION FREQUENCY
MAX4741 toc09
SUPPLY CURRENT SUPPLY VOLTAGE TEMPERATURE
MAX4741 toc10
0.025 0.020
100.00 +85°C 10.00 +25°C 1.00
0.010 0.10 0.005 100k FREQUENCY (Hz) -40°C
(nA)
0.015
0.01
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
Description
MAX4741 µMAX SOT23-8 MAX4742 µMAX SOT23-8 MAX4743 µMAX SOT23-8 COM1 COM2 Analog Switch Normally Open Analog Switch Normally Closed Analog Switch Common Logic Control Input Switch Ground Analog Switch Normally Open Analog Switch Normally Closed Analog Switch Common Logic Control Input Switch Positive Supply Voltage NAME FUNCTION
MAX4741/MAX4742/MAX4743
Detailed Description
MAX4741/MAX4742/MAX4743 +3V) on-resistance, low-voltage, dual analog switches that operate from +1.6V +3.6V single supply. CMOS switch construction allows switching analog signals that within supply voltage range (GND V+). When powered from supply, allows high continuous currents switched variety applications.
Analog Signal Levels
Analog signals that range over entire supply voltage GND) passed with very little change onresistance (see Typical Operating Characteristics). switches bidirectional, NO_, NC_, COM_ pins used either inputs outputs.
Layout
High-speed switches require proper layout design procedures optimum performance. Reduce stray inductance capacitance keeping traces short wide. Ensure that bypass capacitors close device possible. large ground planes where possible.
Applications Information
Proper power-supply sequencing recommended CMOS devices. exceed absolute maximum ratings, because stresses beyond listed ratings cause permanent damage devices. Always sequence first, followed NO_, NC_, COM_. Although required, power-supply bypassing improves noise margin prevents switching noise propagation from supply other components. 0.1µF capacitor, connected from GND, adequate most applications.
Logic Inputs
MAX4741/MAX4742/MAX4743 logic inputs driven +3.6V regardless supply voltage. example, with +1.8V supply, driven high +3.6V. Driving rail-to-rail minimizes power consumption.
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
Test Circuits/Timing Diagrams
0.5V VCOM_ VCOM_ 35pF tOFF VNO_
OPEN
VNO_
MAX4741
COM_
0.5V VCOM_ 35pF VNC_ VCOM_ tOFF
OPEN
VNC_
MAX4742
COM_
0.5V VCOM_ 35pF VCOM_ tBBM tBBM tON(NO_) tOFF(NC_) tBBM tON(NC_) tOFF(NO_) tBBM
MAX4743
COM_
Figure Switching Times
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
Test Circuits/Timing Diagrams (continued)
0.1µF NETWORK ANALYZER
MAX4741/MAX4742/MAX4743
VOUT
MAX4741 MAX4742 MAX4743 COM_
MEAS
MEASUREMENTS STANDARDIZED AGAINST SHORT SOCKET TERMINALS. OFF-ISOLATION MEASURED BETWEEN "OFF" TERMINAL EACH SWITCH. ON-LOSS MEASURED BETWEEN "ON" TERMINAL EACH SWITCH. SIGNAL DIRECTION THROUGH SWITCH REVERSED; WORST VALUES RECORDED.
OFF-ISOLATION 20log VOUT ON-LOSS 20log TERMINATION OFF-ISOLATION
Figure Off-Isolation, On-Loss, Crosstalk
RGEN VGEN
MAX4741 MAX4742 MAX4743 COM_
VOUT 1000pF
REQUIRED
MAX4741 MAX4742 MAX4743 COM_
1MHz CAPACITANCE ANALYZER
Figure NO_, NC_, COM_ Capacitance
MAX4741 MAX4742
VOUT
VOUT
VOUT MEASURED VOLTAGE CHARGE TRANSFER ERROR WHEN CHANNEL TURNS OFF. VOUT
Figure Charge Injection
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
Configurations (continued)
VIEW
MAX4741 MAX4742 MAX4743
COM2
COM1
COM2
COM1
COM2
COM1
SOT23-8
SOT23-8
SOT23-8
Chip Information
TRANSISTOR COUNT PROCESS CMOS
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches
Package Information
SOT23, 8L.EPS
MAX4741/MAX4742/MAX4743
0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741/MAX4742/MAX4743
Package Information (continued)
8LUMAXD.EPS
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2001 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

0.8, Low-Voltage, Single-Supply Dual SPST Analog Switches MAX4741

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