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MAX4641EUA+ |MAX4641EUAMAXIMN/a2790avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
MAX4641EUA+TMAXN/a7500avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
MAX4641EUA-T |MAX4641EUATMAXIMN/a6410avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
MAX4642EUA+ |MAX4642EUAMAXIMN/a950avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
MAX4642EUA+TMAXIMN/a1226avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
MAX4643EUA+ |MAX4643EUAMAXIMN/a1655avaiHigh-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches


MAX4641EUA+T ,High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog SwitchesFeaturesThe MAX4641/MAX4642/MAX4643 are monolithic, dual, ♦ +1.8V to +5.5V Single-Supply Operations ..
MAX4641EUA-T ,High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , ..
MAX4642EUA ,High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T ..
MAX4642EUA ,High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog SwitchesApplications Low Power Consumption: < 0.01µWBattery-Operated EquipmentOrdering InformationAudio an ..
MAX4642EUA ,High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , ..
MAX4642EUA+ ,High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T ..
MAX8792ETD+ ,Single Quick-PWM Step-Down Controller with Dynamic REFINApplicationsGNDStep-Down Power Supply124 3 5 6 7 TDFN(3mm x 3mm)Quick-PWM is a trademark of Maxim I ..
MAX8792ETD+T ,Single Quick-PWM Step-Down Controller with Dynamic REFINELECTRICAL CHARACTERISTICS(Circuit of Figure 1, V = 12V, V = V = V = 5V, REFIN = ILIM = REF, SKIP = ..
MAX8794ETB+ ,Low-Voltage DDR Linear RegulatorFeaturesThe MAX8794 DDR linear regulator sources and sinks up♦ Internal Power MOSFETs with Current ..
MAX8794ETB+T ,Low-Voltage DDR Linear RegulatorApplicationsPACKAGE MARKNotebook/Desktop Computers10 TDFN-EP*MAX8794ETB+ -40°C to +85°C ASWDDR Memo ..
MAX8795AETJ+ ,TFT-LCD DC-DC Converter with Operational AmplifiersApplicationsVCPAGNDNotebook Computer DisplaysMAX8795ADRVPLCD Monitor PanelsGATE-ONVGONCONTROLLER FB ..
MAX8795AETJ+T ,TFT-LCD DC-DC Converter with Operational AmplifiersELECTRICAL CHARACTERISTICS(V = 3V, V = V = 14V, V = V = V = 0V, I = 25µA, T = 0°C to +85°C. Typical ..


MAX4641EUA+-MAX4641EUA+T-MAX4641EUA-T-MAX4642EUA+-MAX4642EUA+T-MAX4643EUA+
High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
General Description
The MAX4641/MAX4642/MAX4643 are monolithic, dual,
single-pole/single-throw (SPST) switches that can operate
from a single supply ranging from +1.8V to +5.5V. The
MAX4641/MAX4642/MAX4643 provide low 4Ωon-resis-
tance (RON), 0.6ΩRONmatching between channels, andRONflatness over the entire analog signal range.
These devices offer fast switching times of less than 20ns
while consuming less than 0.01µW of quiescent power.
The MAX4641 has two normally open (NO) switches,
and the MAX4642 has two normally closed (NC)
switches. The MAX4643 has one NO switch and one NC
switch. All three devices have low 0.35nA leakage cur-
rents over the entire temperature range. The MAX4641/
MAX4642/MAX4643 are available in small 8-pin µMAX
and 8-pin QFN packages.
Applications

Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Features
+1.8V to +5.5V Single-Supply OperationRail-to-Rail™Analog Signal RangeGuaranteed RONmax (+5V supply)max (+3V supply)+1.8V Operation
RON30Ωtyp Over Temperature
tON18ns typ, tOFF12ns typ
Guaranteed RONFlatness: 1Ω(+5V supply)Guaranteed RONMatch Between Channels
0.6Ω(+5V supply)
Low Leakage (<0.35nA) Over Entire Temperature
Range
Excellent AC Characteristics
Low Crosstalk:-97dB at 1MHz
High Off-Isolation:-80dB at 1MHz
0.018% Total Harmonic Distortion
Low Power Consumption: < 0.01µW
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches

MAX4641
IN_

NO_
MAX4641

OFF
COM2IN2
NO2GND
IN1COM1
NO1
TOP VIEW
MAX4642
IN_

NC_
MAX4642

OFF
COM2IN2
NC2GND
IN1COM1
NC1
MAX4643
IN_

NO1
MAX4643

OFF
NC2

OFF
COM2IN2
NC2GND
IN1COM1
NO1
μMAXμMAXμMAX
Pin Configurations/Functional Diagrams/Truth Tables

19-1656; Rev 1; 2/02
Ordering Information

8 µMAX
PIN-PACKAGETEMP RANGE

-40°C to +85°CMAX4643EUA
PART

8 µMAX-40°C to +85°CMAX4642EUA
8 µMAX-40°C to +85°CMAX4641EUA
Rail-to-Rail is a trademark of Nippon Motorola, Ltd.
8 QFN 3 x3-40°C to +85°CMAX4641EGA
8 QFN 3 x3-40°C to +85°CMAX4642EGA
8 QFN 3 x3-40°C to +85°CMAX4643EGA
Pin Configurations continued at end of data sheet.
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +4.5V to +5.5V, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All Voltages Referenced to GND).............................................................................-0.3V to +6V
IN_, COM_, NO_, NC_ (Note 1)....................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal)....................................±20mA
Continuous Current (NO_, NC_, COM_)...........................±50mA
Peak Current (NO_, NC_, COM_, pulsed at 1ms,
10% duty cycle)........................................................±100mA
Continuous Power Dissipation (TA= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C)...........362mW
8-Pin QFN (derate 24.4mW/°C above +70°C).........1951mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s)................................+300°C
V+ = 4.5V,
ICOM_= 10mA, VNO_
or VNC_= 0 to V+
VIN_= 0.8V or 2.4V
V+ = 5.5V, VCOM_=
1V or 4.5V
V+ = 4.5V, ICOM_=
10mA, VNO_or
VNC_= 0 to V+
V+ = 4.5V, ICOM_=
10mA, VNO_or
VNC_ = 0 to V+
CONDITIONS
-0.10.0050.1IININ_ Input Current0.8VILIN_ Input Logic Low 2.4VIHIN_ Input Logic High
RONOn-Resistance0V+
VCOM_,
VNO_,
VNC_
Analog Signal Range
DIGITAL INPUTS
-0.350.35ICOM_(ON)nA-0.250.010.25COM_ On-Leakage Current
(Notes 4, 5)
ΔRON
On-Resistance Match
Between Channels
(Notes 2, 8)0.8
RFLATOn-Resistance Flatness
(Note 3)
UNITSMINTYPMAXSYMBOLPARAMETER
Note 1:
Signals on NO_, NC_, COM_, or IN_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.= +25°C= TMINto TMAX= +25°C= TMINto TMAX= +25°C= TMINto TMAX= +25°CV+ = 5.5V, VCOM_=
1V or 4.5V, VNO_or
VNC_= 4.5V or 1V-0.350.35TA= TMINto TMAX
-0.250.010.25INO_(OFF),
INC_(OFF)
NO_, NC_ Off-Leakage
Current (Note 4)= +25°CV+ = 5.5V, VCOM_=
1V or 4.5V, VNO_or
VNC_= 4.5V or 1V-0.350.35TA= TMINto TMAX
ICOM_(OFF)COM_ Off-Leakage Current
(Note 4)= +25°C= TMINto TMAX
ANALOG SWITCH
DIGITAL INPUTS
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +4.5V to +5.5V, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.3V, VINH= 2.0V, VINL= 0.4V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
V+ = 2.7V, ICOM_=
10mA, VNO_ or
VNC_ = 0 to V+= +25°CV+ = 2.7V, ICOM_=
10mA, VNO_ or
VNC_ = 0 to V+
CONDITIONS

RONOn-Resistance0V+
VCOM_,
VNO_,
VNC_
Analog Signal Range= TMINto TMAX= +25°C= TMINto TMAX
ΔRON
On-Resistance Match
Between Channels
(Notes 2, 8)0.8
UNITSMINTYPMAXSYMBOLPARAMETER
= +25°CV+ = 2.7V, ICOM_=
10mA, VNO_ or
VNC_ = 0 to V+TA= TMINto TMAX
RFLATOn-Resistance Flatness
(Note 3)3.5
ANALOG SWITCH
0.018RL= 600Ω, 0.5Vp-p, f = 20Hz to 20kHzTHDTotal Harmonic Distortion0.0011.0V+ = 5.5V, VIN_= 0 or V+I+Positive Supply Current
Crosstalk (Note 7)VCT-97dBf = 10MHz
f = 1MHz= 5pF, RL= 50Ω,
Figure 3
f = 10MHz
f = 1MHz
PARAMETERSYMBOLMINTYPMAXUNITS

Break-Before-Make (Note 4)
(MAX4643 only)tBBM= TMINto TMAX
Turn-Off Time (Note 4)tOFF= TMINto TMAX= +25°C= TMINto TMAX
Turn-On Time (Note 4)tON
Charge Injection Q2pC
NO_, NC_ Off-CapacitanceCNO_ (OFF),
CNC_ (OFF)7pF
COM_ Off-Capacitance CCOM_ (OFF)7pF
Switch On-Capacitance C(ON)18pF
Off-Isolation (Note 6)VISO-80dB
CONDITIONS

VGEN= 0, RGEN= 0, CL= 1nF, Figure 4= 300Ω, = 35pF, VNO_=
VNC_= 3V, Figure 2
NO_ or NC_ = GND, f = 1MHz, Figure 5= +25°C= 300Ω, CL=
35pF, VNO_= VNC_=
3V, Figure 2= +25°C
f = 1MHz, Figure 5
f = 1MHz, Figure 5= 5pF, RL= 50Ω,
Figure 3= 300Ω, CL=
35pF, VNO_= VNC_=
3V, Figure 2
DYNAMIC
SUPPLY
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.3V, VINH= 2.0V, VINL= 0.4V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
Note 2:
ΔRON= RON(MAX)- RON(MIN).
Note 3:
RONFlatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 4:
Guaranteed by design.
Note 5:
On-Leakage performed with voltage applied to COM_, with NO_ and NC_ left floating.
Note 6:
Off-Isolation = 20log10(VO_ / VI_), where VOis VCOM_and VIis VNC_or VNO_from the network analyzer.
Note 7:
Crosstalk is measured between the two switches.
Note 8:
RONand ΔRONmatching specifications for QFN-packaged parts are guaranteed by design.
f =1MHz, Figure 5
NO_ or NC_ = GND, f = 1MHz, Figure 5= 5pF, RL= 50Ω,
Figure 3
VGEN = 0, RGEN= 0, CL= 1nF, Figure 4
VIN_= 0.4V or 2.0V= 300Ω, CL=
35pF, VNO_=
VNC_= 2V, Figure 2= 5pF, RL= 50Ω,
Figure 3= 300Ω, CL=
35pF, VNO_=
VNC_= 2V, Figure 2
CONDITIONS
-77
-80VISOOff-Isolation (Note 6)dB-560.4VILIN_ Input Logic Low 2.0VIHIN_ Input Logic High 7CCOM_(OFF)COM_ Off-Capacitance7CNO_(OFF),
CNC_(OFF)NO_, NC_ Off-Capacitance2QCharge Injection -0.10.0050.1IININ_ Input Current
tONTurn-On Time (Note 4)
tBBM
UNITSMINTYPMAXSYMBOLPARAMETER
20= TMINto TMAX= +25°C= 300Ω, CL=
35pF, VNO_=
VNC_= 2V, Figure 2
tOFFTurn-Off Time (Note 4)
610= TMINto TMAX= +25°C
Break-Before-Make (Note 4)
(MAX4643 only)= +25°C= TMINto TMAX1
f =1MHz, Figure 5pF18C(ON)Switch On-Capacitance
-97VCTCrosstalk (Note 7)
f = 10MHz
f = 1MHz
f = 10MHz
f = 1MHz
V+ = 3.3V, VIN_= 0 or V+µA0.0011.0I+Positive Supply Current
DIGITAL INPUTS
DYNAMIC
SUPPLY
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches

CHARGE INJECTION vs. VCOM

TOC4641/2/3toc04
VCOM (V)
CHARGE INJECTION (pC)4215
V+ = 5V1345
ON-RESISTANCE vs. VCOM

MAX4641/2/3toc01
VCOM (V)
V+ = 3.0V
V+ = 2.5V
V+ = 5V
ICOM = 10mA
V+ = 1.8V
ON-RESISTANCE vs. TEMPERATURE
MAX4641/2/3toc02
TEMPERATURE (°C)
V+ = 3V
V+ = 5V
ICOM = 10mA
ON-/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4641/2/3toc03
TEMPERATURE (°C)
LEAKAGE (pA)
IN = GND
IN = V+
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4641/2/3toc05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (nA)
IN = GND
IN = V+
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
MAX4641/2/3toc06
SUPPLY VOLTAGE (V)
LOGIC THRESHOLD (V)
SWITCHING TIMES vs. SUPPLY VOLTAGE

TOC4641/2/3toc07
SUPPLY VOLTAGE (V)
SWITCHING TIMES (ns)35
SWITCHING TIMES vs. TEMPERATURE

TOC4641/2/3toc08
TEMPERATURE (°C)
SWITCHING TIMES (ns)
SUPPLY CURRENT
vs. TEMPERATURE
TOC4641/2/3toc09
TEMPERATURE (°C)
SUPPLY CURRENT (nA)
IN = GND
V+ = 5V
V+ = 3V
V+ = 1.8V
Typical Operating Characteristics

(V+ = +5V or +3V, VINH= V+, VINL= GND, TA= +25°C, unless otherwise noted.)
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches
Typical Operating Characteristics (continued)

(V+ = +5V or +3V, VINH= V+, VINL= GND, TA= +25°C, unless otherwise noted.)
NAMEFUNCTION
MAX4641

1, 5NO1, NO2Analog Switch Normally Open Terminals NC1, NC2Analog Switch Normally Closed TerminalsNO1Analog Switch Normally Open Terminal GNDGround
3, 7IN2, IN1Logic-Controlled Inputs
2, 6COM1, COM2Analog Switch Common TerminalsNC2Analog Switch Normally Closed TerminalV+Positive Supply Input. Bypass with a 0.1µF capacitor to GND.
Pin Description

FREQUENCY RESPONSE
MAX4641/2/3toc10
FREQUENCY (MHz)
(dB/div)
OFF-ISOLATION
ON-LOSS
V+ = 5V
MAX4641/2/3toc11
FREQUENCY (MHz)
CROSSTALK (dB)
CROSSTALK vs. FREQUENCY
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4641/2/3toc12
FREQUENCY (kHz)
THD (%)
V+ = 5V
MAX4643

PIN

3, 7
2, 6
MAX4642

1, 5
3, 7
2, 6
Note:
NO_, NC_, and COM_ pins are identical and interchangeable. Signals can be passed through either side of these bidirectional
switches. However, the typical off-capacitances differ, as shown in the Electrical Characteristics.
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