MAX4644EUT+T ,High-Speed, Low-Voltage, 4Ω, Dual, SPDT CMOS Analog SwitchELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , ..
MAX4645EUK+T ,Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = 4.5V to 5.5V, V = 2.4V, V = 0.8V, T = T to T , un ..
MAX4645EUT-T ,+1.8 V to +5.0 V, fast, low-voltage, 2.5 om, SPST, CMOS analog switcheELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = 4.5V to 5.5V, V = 2.4V, V = 0.8V, T = ..
MAX4646EUK+T ,Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = 4.5V to 5.5V, V = 2.4V, V = 0.8V, T = ..
MAX4646EUK-T ,+1.8 V to +5.0 V, fast, low-voltage, 2.5 om, SPST, CMOS analog switcheApplicationsPACKAGE MARKMAX4645EUK-T -40°C to +85°C 5 SOT23-5 ADOBBattery-Powered SystemsMAX4645EUT ..
MAX4646EUK-T ,+1.8 V to +5.0 V, fast, low-voltage, 2.5 om, SPST, CMOS analog switcheELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = 4.5V to 5.5V, V = 2.4V, V = 0.8V, T = T to T , un ..
MAX8797GTI+ ,1-Phase, Quick-PWM Intel IMVP-6/GMCH Controllersapplications: eitherbucking down the battery directly to create the core voltage, or else bucking d ..
MAX8798AETX+ ,Internal-Switch Boost Regulator with Integrated 3-Channel Scan Driver for TFT LCDsELECTRICAL CHARACTERISTICS(V = V = V = +3V, circuit of Figure 2, V = 8V, V = 23V, V = -12V, V = 0, ..
MAX8798ETX+ ,Internal-Switch Boost Regulator with Integrated 3-Channel Scan Driver for TFT LCDsApplicationsCKVPOSVL 3.3VNotebook Computer DisplaysLINEAR BGNDVDDREGLCD Monitor PanelsOUTVCOM CALIB ..
MAX8798ETX+T ,Internal-Switch Boost Regulator with Integrated 3-Channel Scan Driver for TFT LCDsfeatures soft-start and current limit.7-Bit Adjustable Current-Sink OutputThe high-current operatio ..
MAX879CSA ,5V/3.3V/3V/Adjustable-Output / Step-Up/Step-Down DC-DC ConvertersApplicationsMAX877MJA -55°C to +125°C 8 CERDIPTwo or Three NiCd Cells to 3V/3.3V ConversionOrdering ..
MAX879ESA ,5V/3.3V/3V/Adjustable-Output / Step-Up/Step-Down DC-DC ConvertersELECTRICAL CHARACTERISTICS–———(V = 2.7V, I = 0mA, LX = 22µH, C = 100µF, SHDN and ILIM connected to ..
MAX4644EUA+-MAX4644EUT-MAX4644EUT+T
High-Speed, Low-Voltage, 4Ω, Dual, SPDT CMOS Analog Switch
General DescriptionThe MAX4644 is a single-pole/double-throw (SPDT)
switch that operates from a single supply ranging from
+1.8V to +5.5V. It provides low 4Ωon-resistance (RON)
as well as 1ΩRONflatness over the entire analog-signal
range. The MAX4644 offers fast switching times of less
than 20ns while ensuring break-before-make operation.
It typically consumes only 0.01μW of quiescent power,
making it suitable for use in low-power, portable appli-
cations.
The MAX4644’s features include low leakage currents
over the entire temperature range, TTL/CMOS-compati-
ble digital logic, and excellent AC characteristics. It is
packaged in either a small 8-pin μMAX®or a tiny 6-pin
SOT23.
ApplicationsBattery-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
RON30Ω(typ) Over Temperature
tON18ns (typ), tOFF12ns typGuaranteed RONFlatness: 0.75Ω(typ) (+5V Supply)Guaranteed RONMatch Between Channels:
0.1Ωtyp (+5V Supply)Low Leakage (< 0.35nA) Over Entire Temperature
RangeExcellent AC Characteristics
Low Crosstalk: -82dB at 1MHz
High Off-Isolation: -80dB at 1MHz
0.018% Total Harmonic DistortionLow Power Consumption: < 0.01µW
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog SwitchGND
COMV+4
MAX4644
SOT23-6MAX4644GND
N.C.V+
N.C.NC
COM
µMAX
TOP VIEW
NO
MAX4644OFF
OFF
Pin Configurations/Functional Diagrams/Truth Table19-1657; Rev 1; 1/11
Ordering Information+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
PART TEMP. RANGE PIN-
PACKAGE
TOP
MARK MAX4644EUT+T-40°C to +85°C6 SOT23AAHQ
MAX4644EUA+T-40°C to +85°C8 μMAX—ËMAX is a registered trademark of Maxim Integrated
Products, Inc.
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog Switch
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.)
V+.............................................................................-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, and COM).........................±50mA
Peak Current (NO, NC, and COM, pulsed at 1ms,
10% duty cycle).........................................................±100mA
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23 (derate 8.70mW/°C above +70°C)........696mW
8-Pin μMAX (derate 4.5mW/°C above +70°C)...........362mW
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
Soldering Temperature (reflow)......................................+260°C
V+ = 4.5V, ICOM=
10mA, VNOor
VNC = 0 to V+
VIN= 0.8V or 2.4V
V+ = 5.5V, VCOM=
1V or 4.5V
V+ = 4.5V, ICOM=
10mA, VNOor
VNC = 0 to V+
V+ = 4.5V, ICOM=
10mA, VNOor
VNC = 0 to V+
CONDITIONS-0.10.0050.1IINInput Current0.8VILInput-Logic Low 2.4VIHInput-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)
ΔRONOn-Resistance Match
Between Channels (Note 2)0.4
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, VNOor
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, VNOor
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
ABSOLUTE MAXIMUM RATINGS
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog Switch
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.)= 300Ω; CL=
35pF; VNO, VNC= 3V;
Figure 2= 600Ω, 0.5Vp-p, f = 20Hz to 20kHz= 5pF, RL= 50Ω,
Figure 3
f = 1MHz, Figure 5= +25°CRL= 300Ω; CL=
35pF; VNO, VNC= 3V;
Figure 2= +25°C
NO or NC = GND, f = 1MHz, Figure 5= 300Ω; = 35pF; VNOor
VNC= +3V; Figure 2
VGEN= 0V, RGEN= 0V, CL= 1nF, Figure 4
CONDITIONS0.018THDTotal Harmonic Distortion-80VISOOff-Isolation (Note 6)34C(ON)Switch On-Capacitance 12CNO(OFF),
CNC(OFF)NO, NC Off-Capacitance5QCharge Injection 15
tONTurn-On Time (Note 4)= TMINto TMAX= +25°C= TMINto TMAX
tOFFTurn-Off Time (Note 4)= TMINto TMAX
tBBMBreak-Before-Make (Note 4)
UNITSMINTYPMAXSYMBOLPARAMETERV+ = 5.5V, VIN= 0V or V+μA0.0011.0I+Positive Supply Current
f = 1MHz
f = 10MHz= 5pF, RL= 50Ω,
Figure 3f = 1MHz
f = 10MHzdB-82VCTCrosstalk (Note 7)
V+ = 2.7V, ICOM =
10mA, VNO or
VNC = 0 to V+= +25°CV+ = 2.7V, ICOM =
10mA, VNO or
VNC = 0 to V+
V+ = 2.7V, ICOM =
10mA, VNO or
VNC = 0 to V+
CONDITIONSRONOn-Resistance0V+
VCOM,
VNO,
VNC
Analog-Signal Range= TMINto TMAX= +25°C= TMINto TMAX
ΔRONOn-Resistance Match
Between Channels (Note 2)0.4= +25°C
RFLATOn-Resistance Flatness
(Note 3)
UNITSMINTYPMAXSYMBOLPARAMETER
DYNAMIC
SUPPLY= TMINto TMAX3.5
ANALOG SWITCH
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog Switch
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 unconnected.
Note 6:Off-Isolation = 20log10(VO / VI), where VOis VCOMand VIis either VNCor VNOfrom the network analyzer.
Note 7:Crosstalk is measured between the two switches.
NO or NC = GND, f = 1MHz, Figure 5= 5pF, RL= 50Ω,
Figure 3
VGEN = 0V, RGEN= 0V, 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-62
-80VISOOff-Isolation (Note 6)dB-550.4VILInput-Logic Low 2.0VIHInput-Logic High 12CNO(OFF),
CNC(OFF)NO, NC Off-Capacitance5QCharge Injection -0.10.0050.1IINInput Current
tONTurn-On Time (Note 4)
tBBM
UNITSMINTYPMAXSYMBOLPARAMETER20= TMINto TMAX= +25°C= 300Ω; CL=
35pF; VNO, VNC= 2V;
Figure 2
tOFFTurn-Off Time (Note 4)7.5= TMINto TMAX= +25°C
Break-Before-Make (Note 4)= +25°C= TMINto TMAX1
f = 1MHz, Figure 5pF34C(ON)Switch On-Capacitance
-82VCTCrosstalk (Note 7)
f = 10MHz
f = 1MHz
f = 10MHz
f = 1MHz
V+ = 3.3V, VIN= 0V or V+μA0.0011.0I+Positive Supply Current
DIGITAL INPUTS
DYNAMIC
SUPPLY
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog SwitchCHARGE INJECTION vs. VCOM
MAX4644-04
VCOM (V)
CHARGE INJECTION (pC)
V+ = 5V
ICOM = 10mA1345
ON-RESISTANCE vs. VCOMMAX4644-01
VCOM (V)
V+ = 3V
V+ = 2.5V
V+ = 5V
V+ = 1.8V
ON-RESISTANCE vs. TEMPERATURE
MAX4644-02
TEMPERATURE (°C)
V+ = 3V
V+ = 5V
ICOM = 10mA
ON-/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4644-03
TEMPERATURE (°C)
LEAKAGE (pA)
OFF-LEAKAGE
ON-LEAKAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4644-05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (nA)
IN = GND
IN = V+
SUPPLY CURRENT vs.
TEMPERATURE
MAX4644-06
TEMPERATURE (°C)
SUPPLY CURRENT (nA)
IN = GND
V+ = 5V
V+ = 3V
V+ = 1.8V
LOGIC THRESHOLD vs.
SUPPLY VOLTAGE
MAX4644-07
SUPPLY VOLTAGE (V)
LOGIC THRESHOLD (V)
SWITCHING TIMES vs. SUPPLY VOLTAGEMAX4644-08
SUPPLY VOLTAGE (V)
SWITCHING TIMES (ns)35
tOFF
tON
SWITCHING TIMES vs. TEMPERATUREMAX4644-09
TEMPERATURE (°C)
SWITCHING TIMES (ns)
V+ = 5V
tOFF
tON
Typical Operating Characteristics(V+ = +5V or +3V, VINH= V+, INL = GND, TA= +25°C, unless otherwise noted.)
MAX4644
High-Speed, Low-Voltage, 4Ω,
SPDT CMOS Analog Switch
Typical Operating Characteristics (continued)(V+ = +5V or +3V, VINH= V+, INL = GND, TA= +25°C, unless otherwise noted.)
Pin DescriptionFREQUENCY RESPONSE
MAX4644-10
FREQUENCY (MHz)
(dB/div)
OFF-ISOLATION
ON-LOSS
V+ = 5V
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4644-11
FREQUENCY (kHz)
THD (%)
V+ = 5V
Note:The switches are bidirectional, which means that a signal can be passed through either side of the on switch. However,
the typical off-capacitances differ as shown in the Electrical Characteristics.Logic-Controlled Input Positive Supply Voltage Input. Bypass with a 0.1μF capacitor to GND.
GNDGroundAnalog-Switch Normally Open Terminal
COMAnalog-Switch Common TerminalAnalog-Switch Normally Closed Terminal
N.C.No Connection. Not internally connected.
5, 7
µMAXSOT23
MAX4644
FUNCTIONNAME
