MAX4645EUK+T-MAX4646EUK+T Fast Delivery |IC PHOENIX CO.,LIMITED

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 ..
MAX4647EUT+T ,25 Ohm SPST Analog Switches in SOT23-6
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 ..

MAX4645EUK+T-MAX4646EUK+T
Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog Switches
General Description
The MAX4645/MAX4646 single-pole, single-throw (SPST)
analog switches feature a 2.5Ωtypical on-resistance
(RON) from a +5V supply. RONis flat (0.4Ωmax) over the
specified signal range. Each switch can handle Rail-to-
Rail®analog signals. Off-leakage current is 0.25nA max at
+25°C. These analog switches are ideal in low-distortion
applications and are the preferred solution over mechani-
cal relays in automated test equipment or applications
where current switching is required. They have low power
requirements, require less board space, and are more
reliable than mechanical relays.
These switches operate from a +1.8V to +5V single sup-
ply, making them ideal for use in battery-powered applica-
tions. The MAX4645/MAX4646 have fast switching speeds
of 12ns turn-on time (tON) and 8ns turn-off time (tOFF).
The MAX4645 is a normally open (NO) switch, and the
MAX4646 is a normally closed (NC) switch. Both are
available in 5-pin SOT23, 6-pin SOT23, and 8-pin µMAX
packages.
________________________Applications
Battery-Powered Systems
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Relay Replacement
____________________________Features+1.8V to +5V Single-Supply OperationGuaranteed RON
2.5Ωmax (5V supply)
3.5Ωmax (3V supply)1.8V Operation
RON30Ωtyp Over Temperature
tON40ns typ, tOFF20ns typLow RONFlatness: 0.4ΩmaxGuaranteed Low Leakage Currents
±0.25nA at +25°CRail-to-Rail Output CapabilityTTL/CMOS-Logic Compatible-75dB Off-Isolation at 1MHzLow Distortion: 0.014% typ
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST
CMOS Analog Switches
19-1653; Rev 2; 2/04
Ordering Information
Pin Configurations/Functional Diagrams/Truth Tables
µMAX/SO/DIP
PIN 55
XYZA
NOTE: SOT23-5 PACKAGE
HAS LETTERING NEAREST PIN 5.
TOP VIEWGND5V+COM
MAX46454
SOT23-5
INPUT
SWITCH STATE
MAX4645
OFF
MAX4646
OFF
SWITCHES SHOWN FOR LOGIC 0 INPUT.
µMAX/SO/DIPGND5V+COM
MAX46464
SOT23-5
MAX4645EUT-T-40°C to +85°C
PARTTEMP RANGE
MAX4645EUK-T-40°C to +85°C
MAX4646EUK-T-40°C to +85°C
MAX4646EUT-T-40°C to +85°C
MAX4646EUA-40°C to +85°C
MAX4645EUA-40°C to +85°C
8 µMAX
6 SOT23-6
5 SOT23-5
8 µMAX
6 SOT23-6
5 SOT23-5
PIN-
PACKAGE
AAHM
ADOC
AAHL
ADOB
TOP
MARK
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations/Functional Diagrams/
Truth Tables continued at end of data sheet.
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
V+, VINto GND...........................................................-0.3 to +6V
COM, NO, NC to GND (Note 1)....................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal)....................................±50mA
Peak Current COM, NO, NC
(pulsed at 1ms 10% duty cycle)................................±100mA
Continuous Power Dissipation (TA= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above+70°C)............571mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW
8-Pin µMAX (derate 4.1mW/°C above+70°C).............330mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°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.
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = 4.5V to 5.5V, VIH= 2.4V, VIL= 0.8V, TA= TMINto TMAX, unless otherwise specified.) (Notes 2, 3)
Note 1:Signals on NO, NC, or COM, exceeding V+ or GND are clamped by internal diodes. Limit forward current to maximum current
rating.= +25°C Turn-Off Time (Note 5)tOFF810ns= +25°C
VIN_ = 0.8V or 2.4V
-0.35 0.35TA= TMINto TMAX= +25°C
0.6TA= TMINto TMAX= +25°C = +25°C ICOM= 10mA,
VNOor VNC= 0 to V+,
V+ = 4.5V
-0.35 0.35
PARAMETERSYMBOLMINTYPMAXUNITSCONDITIONS
Turn-On Time (Note 5)tON1215nsVNO, VNC= 3V, RL= 300Ω,= 35pF, Figure 2
VNO, VNC= 3V, RL= 300Ω,= 35pF, Figure 2
Logic Input Current IIN-0.10.0050.1µA
Input Logic LowVIL0.8V= TMINto TMAX
Input Logic HighVIH2.4VTA= TMINto TMAX
COM On-Leakage Current
(Notes 5, 6)ICOM(ON)
-0.25 0.01 0.25
COM Off-Leakage Current
(Notes 5, 6)ICOM(OFF)
-0.25 0.01 0.25= TMINto TMAX= +25°C
-0.35 0.35 TA= TMINto TMAX= +25°C
Off-Leakage Current
(NO or NC) (Notes 5, 6)
INO(OFF),
INC(OFF)
-0.25 0.01 0.25
VCOM= 1V, 4.5V;
VNOor VNC= 4.5V, 1V;
V+ = 5.5V
On-Resistance Flatness
(Note 4)RFLAT(ON)
0.10.4Ω
ICOM= 10mA,
VNOor VNC= 0 to V+,
V+ = 4.5V
COM to NO or NC
On-ResistanceRON
1.52.5Ω= TMINto TMAX
Input Voltage RangeVCOM,
VNO, VNC0V+V
VCOM= 1V, 4.5V;
VNOor VNC= 4.5V, 1V;
V+ = 5.5V
ANALOG SWITCH
SWITCH DYNAMIC CHARACTERISTICS
V+ = 5.5V; VCOM= 4.5V,
1V; VNOor VNC= 4.5V,
1V, or floating
LOGIC INPUT
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = 2.7V to 3.3V, VIH= 2.0V, VIL= 0.4V, TA= TMINto TMAX, unless otherwise specified.) (Notes 2, 3)
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = 4.5V to 5.5V, VIH= 2.4V, VIL= 0.8V, TA= TMINto TMAX, unless otherwise specified.) (Notes 2, 3)0V+VCOM,
VNO, VNCInput Voltage Range = TMINto TMAXΩ
RONCOM to NO or NC
On-Resistance
ICOM= 10mA,
VNOor VNC= 0 to V+,
V+ = 2.7V
RFLAT(ON)On-Resistance Flatness
(Note 4)
VCOM= 1V, 3V;
VNOor VNC= 3V, 1V;
V+ = 3.3V
-0.25 0.01 0.25INO(OFF),
INC(OFF)
Off-Leakage Current
(NO or NC) (Notes 5, 6)= +25°C = TMINto TMAX-0.35 0.35 = +25°C = TMINto TMAX
VCOM= 1V, 3V;
VNOor VNC= 3V, 1V;
V+ = 3.3V
-0.25 0.01 0.25
ICOM(OFF)COM Off-Leakage Current
(Notes 5, 6)
V+ = 3.3V; VCOM= 1V, 3V;
VNOor VNC= 1V,
3V or floating
-0.25 0.01 0.25
ICOM(ON)COM On-Leakage Current
(Notes 5, 6)
CONDITIONSUNITSMINTYPMAXSYMBOLPARAMETER
-0.35 0.35
ICOM= 10mA,
VNOor VNC= 0 to V+,
V+ = 2.7V= +25°C
4.5= +25°C = TMINto TMAX1= +25°C = TMINto TMAX-0.35 0.35
ANALOG SWITCH
-75dB
VNO= VNC= 1VRMS,= 50Ω, CL= 5pF,
f = 1MHz, Figure 4= +25°C
PARAMETERSYMBOLMINTYPMAX
UNITS
Positive Supply CurrentI+0.0001V+ = 5.5V, VIN= 0 or V+,
all channels on or off
Total Harmonic DistortionTHD0.014%RL= 600Ω, 5VP-P,
f = 20Hz to 20kHz
CONDITIONS= TMINto TMAX= +25°C = +25°C
Off-Isolation (Note 7)VISO
-55dB
VNO= VNC= 1VRMS,= 50Ω, CL= 5pF,
f = 10MHz, Figure 4
COM On-CapacitanceCCOM38pFVCOM= VNO, VNC= GND
f = 1MHz, Figure 5
COM Off-CapacitanceCCOM17pFVCOM= GND, f = 1MHz,
Figure 5
NO or NC CapacitanceCOFF17pFVNO, VNC= GND,
f = 1MHz, Figure 5
Charge InjectionQ5pCVGEN= 2V, CL= 1.0nF,
RGEN= 0, Figure 3= +25°C = +25°C = +25°C = +25°C = +25°C
POWER SUPPLY
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
Note 2:The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used
in this data sheet.
Note 3:SOT packages are 100% production tested at +25°C. Limits at the maximum rated temperature are guaranteed by
correlation.
Note 4:Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 5:Guaranteed by design.
Note 6:Leakage parameters are 100% tested at +85°C and guaranteed by correlation at +25°C.
Note 7:Off-Isolation = 20log10(VCOM / VNO), VCOM= output, VNO= input to off switch.
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = 2.7V to 3.3V, VIH= 2.0V, VIL= 0.4V, TA= TMINto TMAX, unless otherwise specified.) (Notes 2, 3)
-75= +25°C
Turn-Off Time (Note 5)tOFF
810= +25°C
VIN_ = 0.4V or 2.0V
VNO= VNC= 1VRMS,= 50Ω, CL= 5pF,
f = 1MHz, Figure 4= +25°C
PARAMETERSYMBOLMINTYPMAX
UNITS
Positive Supply CurrentI+0.0001µAV+ = 3.3V, VIN= 0 or V+,
all channels on or off
CONDITIONS= TMINto TMAX= +25°C
Off-Isolation (Note 7)VISO
VNO= VNC= 1VRMS,= 50Ω, CL= 5pF,
f = 10MHz, Figure 4
COM On-CapacitanceCCOM38pFVCOM= VNO, VNC= GND,
f = 1MHz, Figure 5
COM Off-CapacitanceCCOM17pFVCOM= GND, f = 1MHz,
Figure 5
NO or NC CapacitanceCOFF17pFVNO, VNC= GND,
f = 1MHz, Figure 5
Charge InjectionQ4pCVGEN= 1.5V, CL= 1.0nF,
RGEN= 0, Figure 3= +25°C = +25°C = +25°C = +25°C = +25°C
Turn-On Time (Note 5)tON15
VNO, VNC= 2.0V, = 300Ω,CL= 35pF,
Figure 2
VNO, VNC= 2.0V, = 300Ω,CL= 35pF,
Figure 2
Logic Input Current IIN-10.0051µA
Input Logic LowVIL0.4V= TMINto TMAX
Input Logic HighVIH2.0VTA= TMINto TMAX
LOGIC INPUT
SWITCH DYNAMIC CHARACTERISTICS
POWER SUPPLY
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
SUPPLY CURRENT vs. SUPPLY VOLTAGE
AND TEMPERATURE
MAX4645/6-04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (nA)
TA = +85°C
TA = +25°C
TA = -40°C
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
MAX4645/6-05
TEMPERATURE (°C)
tON
OFF
(ns)
tON
tOFF
VCOM = 3V
V+ = 5V
TURN-ON/TURN-OFF TIME
vs. VCOM
MAX4645/6-06
VCOM (V)
tON
OFF
(ns)
tON
tOFF
V+ = 5V1345
ON-RESISTANCE vs. VCOM
AND SUPPLY VOLTAGE
MAX4645/6-01
VCOM (V)
V+ = 1.8V
V+ = 2.5V
V+ = 3V
V+ = 5V
ON-RESISTANCE vs. VCOM
AND TEMPERATURE
MAX4645/6-02
VCOM (V)
TA = +85°C
TA = +25°C
TA = -40°C
V+ = 4.5V
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4645/6-03
TEMPERATURE (°C)
ON/OFF-LEAKAGE (nA)
ON-LEAKAGE
OFF-LEAKAGE
V+ = 5.5V
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)1345
CHARGE INJECTION vs. VCOM
MAX4645/6-07
VCOM (V)
CHARGE INJECTION (pC)
V+ = 5V
V+ = 3V
MAX4645/6-08
FREQUENCY (kHz)
THD (%)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
INPUT IMPEDANCE = 600Ω
f = 20Hz TO 50kHz
FREQUENCY RESPONSE
MAX4645/6-09
FREQUENCY (MHz)
RESPONSE (dB)-60
V+ = 5V
50Ω IN AND OUT
ON-LOSS
OFF-LOSS
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
Detailed Description
The MAX4645/MAX4646 are low 2.5Ωmax on-resis-
tance (at V+ = 5V), low-voltage analog switches that
operate from a +1.8V to +5.5V single supply. CMOS
switch construction allows processing analog signals
that are within the supply voltage range (GND to V+).
Applications Information
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, followed by the logic
inputs, NO, or COM. If power-supply sequencing is not
possible, add two small signal diodes (D1, D2) in series
with the supply pins for overvoltage protection (Figure
1). Adding these diodes reduces the analog signal by
one diode drop below V+ and one diode drop above
GND, but does not affect the low switch resistance and
low leakage characteristics of the device. Device oper-
ation is unchanged, and the difference between V+ and
GND should not exceed 6V.
Although it is not required, power-supply bypassing
improves noise margin and prevents switching noise
from propagating from the V+ supply to other compo-
nents. A 0.1µF capacitor, connected from V+ to GND,
is adequate for most applications.
Pin Description
POSITIVE SUPPLY
COMNO
GND
MAX4645
MAX4646
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
COM
GND
N.C.5
SOT23-6
µMAX
2, 3, 5—
SOT23-5
2, 3, 5
µMAX6
SOT23-5SOT23-6
Positive Supply VoltageAnalog Switch Common Terminal—Analog Switch Normally Open Terminal2Analog Switch Normally Closed Terminal3Ground4Logic Control InputNo Connection. Not internally connected.
MAX4646MAX4645NAME
PIN
FUNCTION

Partno	Mfg	Dc	Qty	Available	Descript
MAX4645EUK+T	Maxim ?	N/a	4760	avai	Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog Switches
MAX4646EUK+T	MAXIM	N/a	4000	avai	Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog Switches