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
MAX4648EUT-T ,25 OHM SPST Analog Switches in SOT23-6
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MAX464CNI ,Two-Channel, Triple/Quad RGB Video Switches and BuffersFeaturesThe MAX463–MAX470 series of two-channel, ' 100MHz Unity-Gain Bandwidthtriple/quad buffered ..
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 ..
MAX8805WEREEE+C8Z ,600mA/650mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA PowerApplicationsmode directly through a logic-control input.WCDMA/NCDMA Cellular HandsetsThe LDOs in th ..
MAX8808XETA+T ,1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFNFeaturesThe MAX8808X/MAX8808Y/MAX8808Z intelligent, ♦ Stand-Alone Linear 1-Cell Li+ Battery Charger ..
MAX4645EUT-T-MAX4646EUK-T
+1.8 V to +5.0 V, fast, low-voltage, 2.5 om, SPST, CMOS analog switche
General DescriptionThe 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.
________________________ApplicationsBattery-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 Switches19-1653; Rev 2; 2/04
Pin Configurations/Functional Diagrams/Truth TablesRail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog SwitchesV+, 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.
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)
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)
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
__________________________________________Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
Detailed DescriptionThe 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 InformationProper 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.
