MAXIM MAX4714 说明书

0.8ΩSPDT Analog Switch in SC70

, Low-Voltage, Single-Supply

General Description

Features

The MAX4714 is a low on-resistance, low-voltage sin-gle-pole/double-throw (SPDT) analog switch that oper-oLow RON

ates from a single +1.6V to +3.6V supply. The0.8Ω(max) (+3V Supply)MAX4714 has break-before-make switching. This2.5Ω(max) (+1.8V Supply)device also has fast switching speeds (tON= 18ns,o0.18Ωmax RONFlatness (+3V Supply)max, tOFF= 12ns, max).

o+1.6V to +3.6V Single-Supply Operation

When powered from a +3V supply, the MAX4714 fea-tures 0.8Ω(max) on-resistance (RON), with 0.18Ω(max)oAvailable in 6-Pin µDFN (1.5mm x 1mm) and SC70RONmatching and flatness. The digital logic input is 1.8VPackagesCMOS compatible when using a single +3V supply.oFast Switching: tON= 18ns (max), tOFF= 12ns (max)The MAX4714 is pin compatible with the MAX4599 andis available in a 6-pin SC70 or µDFN package.

o1.8VCMOS Logic Compatible (+3V Supply)oPin Compatible with MAX4599oGuaranteed Break-Before-Make

Applications Ordering Information

Power Routing

Battery-Operated EquipmentPARTTEMP RANGEPIN-TOPPACKAGEMARKAudio and Video Signal RoutingMAX4714EXT-T-40°C to +85°C6 SC70-6AAYLow-Voltage Data-Acquisition SystemsMAX4714ELT-T-40°C to +85°C6 µDFN-6AJCommunications CircuitsPCMCIA CardsCellular PhonesModemsHard Drives

Pin Configurations/Functional Diagrams/Truth Table

TOP VIEWMAX4714MAX4714IN16NOIN16NOLOGICNCNOV+25COMV+25COM0ONOFF1OFFONGND34NCGND34NCSWITCHES SHOWNµDFNSC70-6FOR LOGIC 0 INPUT________________________________________________________________Maxim Integrated Products1

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-42, or visit Maxim’s website at www.maxim-ic.com.

MAX47140.8Ω, Low-Voltage, Single-SupplySPDT Analog Switch in SC70MAX4714ABSOLUTE MAXIMUM RATINGS

Voltages Referenced to GND

V+, IN....................................................................-0.3V to +4VCOM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V)Continuous Current NO, NC to COM..............................±150mAPeak Current NO, NC to COM

(pulsed at 1ms, 10% duty cycle max)........................±300mAContinuous Power Dissipation

6-Pin SC70 (derate 3.1mW/°C above +70°C)...............247mW6-Pin µDFN-6 (derate 2.1mW/°C above +70°C)...........167mWOperating Temperature Range

MAX4714EXT....................................................-40°C to +85°CJunction Temperature......................................................+150°CStorage Temperature Range.............................-65°C to +150°CLead Temperature (soldering, 10s)................................+300°C

Note 1:Signals on NC, NO, and COM exceeding V+ or GND are clamped by internal diodes.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, VIH= +1.4V, VIL= +0.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at V+ = +3.0V andTA= +25°C.) (Notes 2, 3) PARAMETERANALOG SWITCHAnalog Signal RangeOn-Resistance (Note 4)On-Resistance MatchBetween Channels (Note 5)On-Resistance Flatness(Note 6)NO or NC Off-LeakageCurrentCOM On-Leakage CurrentDYNAMICTurn-On TimeTurn-Off TimeBreak-Before-Make Delay(Note 7)Charge InjectionOff-Isolation (Note 8)Crosstalk (Note 9)Total Harmonic DistortionTHDtONtOFFtBBMQVISOVNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 1VNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 1VNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 2V , RGE 1.0nF, Fi gu r e 3GE N N, C L = f = 1MHz, VCOM = 1VRMS,RL = 50Ω, CL = 5pF, Figure 4f = 1MHz, VCOM = 1VRMS,RL = 50Ω, CL = 5pF, Figure 4f = 20H z to 20kH z, V = 2V C OM P -P , RL = 32Ω+25°CTMIN to TMAX+25°CTMIN to TMAX+25°CTMIN to TMAX+25°C+25°C+25°C+25°C1122-54-540.01961318201215nsnsnspCdBdB%VCOM,VNO, VNCRON∆RONRFLAT(ON)INO(OFF),INC(OFF)ICOM(ON)V+ = 2.7V, ICOM = 100mA,VNO or VNC = 1.5VV+ = 2.7V, ICOM = 100mA,VNO or VNC = 1.5VV+ = 2.7V, ICOM = 100mA,VNO or VNC = 0.6V, 1.5V, 2.1VV+ = 3.3V, VCOM = 0.3V, 3V,VNO or VNC = 3V, 0.3VV + = 3.3V , V = 0.3V , 3V ,C OM V V 0.3V , 3V or fl oati ng N O or N C = +25°CTMIN to TMAX+25°CTMIN to TMAX+25°CTMIN to TMAX+25°CTMIN to TMAX+25°CTMIN to TMAX-1-5-2-100.10.0300.6V+0.80.90.060.080.180.2+1+5+2+10VΩΩΩnAnASYMBOLCONDITIONSTAMINTYPMAXUNITS2_______________________________________________________________________________________

0.8ΩSPDT Analog Switch in SC70

, Low-Voltage, Single-Supply

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.6V, VIH= +1.4V, VIL= +0.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at V+ = +3.0V andTA= +25°C.) (Notes 2, 3) PARAMETERSYMBOLCONDITIONSTAMINTYPMAXUNITSNC or NO Off-CapacitanceCNO(OFF),CNC(OFF)f = 1MHz, Figure 5+25°C30pFCOM On-CapacitanceCCOM(ON)f = 1MHz, Figure 5+25°C65pFLOGIC INPUTInput Voltage LowVIL0.5VInput Voltage HighVIH1.4VInput Leakage CurrentIINVIN = 0V or V+-1+1µASUPPLYPower-Supply RangeV+1.63.6VPositive Supply CurrentI+V+ = +3.6V, V0.040.2IN = 0V or V++25°CTMIN to TMAX2µAELECTRICAL CHARACTERISTICS—Single +1.8V Supply

(V+ = +1.8V, VIH= +1V, VIL= +0.4V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Notes 2, 3) PARAMETERSYMBOLCONDITIONSTAMINTYPMAXUNITSANALOG SWITCHAnalog Signal RangeVCOM,VNO, VNC0V+VOn-ResistanceR+25°C1.22.5ONICOM = 10mA,VNO or VNC = +0.9VTMIN to TMAX5ΩNO or NC Off-LeakageINO(OFF),VCOM = 0.3V, 1.5V,+25°C-10.01+1CurrentINC(OFF)VNO or VNC = 1.5V, 0.3VTMIN to TMAX-5+5nACOM On-Leakage CurrentICOM(ON)V CO M = 0.3V , 1.5V , V NO or +25°C-2+2V NC = 0.3V , 1.5V or fl oati ng TMIN to TMAX-10+10nADYNAMICTurn-On Timet+25°C1825ONVNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 1TMIN to TMAX30nsTurn-Off Timet+25°C915OFFVNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 1TMIN to TMAX18nsBreak-Before-Make Delay+25°C2(Note 7)tBBMVNO or VNC = 1.5V, RL = 50Ω,CL = 35pF, Figure 2TMIN to TMAX2nsCharge InjectionQV GE N = 0V, RGE N = 0, C L = 1nF,Fi gu r e 3+25°C12pC_______________________________________________________________________________________3

MAX47140.8Ω, Low-Voltage, Single-SupplySPDT Analog Switch in SC70MAX4714ELECTRICAL CHARACTERISTICS—Single +1.8V Supply (continued)

(V+ = +1.8V, VIH= +1V, VIL= +0.4V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Notes 2, 3) PARAMETERLOGIC INPUTInput Voltage LowInput Voltage HighInput Leakage CurrentSUPPLYPositive Supply CurrentI+VIN = 0V or V++25°CTMIN to TMAX0.040.22µAVILVIHIINVIN = 0V or V+110.4VVµASYMBOLCONDITIONSTAMINTYPMAXUNITSNote 2:The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used inthis data sheet.

Note 3:Parts are 100% tested at +25°C. Limits across the full temperature range are guaranteed by design and

correlation.

Note 4:Guaranteed by design for µDFN package.Note 5:∆RON= RON(MAX)- RON(MIN).

Note 6:Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the

specified analog signal range.

Note 7:Guaranteed by design.

Note 8:Off-Isolation = 20log10[VCOM/ (VNCor VNO)], VCOM= output, VNCor VNO= input to off switch.Note 9:Between the two switches.

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

ON-RESISTANCE

vs. COM VOLTAGE OVER SUPPLY VOLTAGE

MAX4714 toc01ON-RESISTANCE

vs. COM VOLTAGE OVER TEMPERATURE

MAX4714 toc02TURN-ON/OFF TIMESvs. SUPPLY VOLTAGE

181614tON/tOFF (ns)12108

tOFFtONMAX4714 toc031.21.11.00.9RON (Ω)0.80.70.60.50.4

0

V+ = +3.6V0.5

1.0

1.5

2.0

2.5

3.0

3.5

V+ = +2.5VV+ = +2.7VV+ = +3.0VV+ = +3.3VV+ = +2.0VV+ = +1.8VICOM = 100mA0.750.700.650.60RON (Ω)0.550.500.450.400.350.30

0

0.5

1.0TA = 0°CV+ = +2.7VICOM = 100mATA = +85°CTA = +65°C20

TA = +25°CTA = -20°CTA = -40°C1.5VCOM (V)

2.0

2.5

201.0

1.5

2.0

2.5

RL = 50Ω3.0

3.5

VCOM (V)SUPPLY VOLTAGE (V)

4_______________________________________________________________________________________

0.8ΩSPDT Analog Switch in SC70

, Low-Voltage, Single-Supply

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

TURN-ON/OFF TIMES ON/OFF-LEAKAGE CURRENT

vs. TEMPERATURE

vs. TEMPERATURE

CHARGE INJECTION vs. COM VOLTAGE

104.0

550

6tc00ONocctoo tt4 144147V+ = 3.3V1147457X44A3.5XXM)AAM12n40AM( T3.0NEICOM(ON)35)Rs10RnU2.5

30( C)F CFEO8Gt25V+ = 3V/A2.0p( QCNKL = 1nFOt6AtE20OFFL-1.5F4FO15/V+ = +2.7VN1.0ICOM(OFF)O10V+ = 1.8V2RL = 50ΩC = 35pF0.5

5CL = 1nF0L0-40

-20

0

20

40

60

80

0-40

-20

0

20

40

60

80

0

0.40.81.21.62.02.42.83.23.6

TEMPERATURE (°C)

TEMPERATURE (°C)VCOM (V)LOGIC THRESHOLD VOLTAGETOTAL HARMONIC DISTORTION

FREQUENCY RESPONSE

vs. SUPPLY VOLTAGE

vs. FREQUENCY

20

71.181

MAX4714 toc0900ON-LOSSccoott 44RL = 32Ω1107744XXV+ = 3V)AV1.0AM(M E-20GAT0.9

L0.1OVIN RISING)BV d(-40D0.8)% L(S SODOHL-60SER0.7

HTHVIN FALLING0.01

-80ON-PHASET GIG0.6OFF-ISOLATION/CROSSTALKOL-1000.5-120

0.4

0.001

10k

100k

1M

10M

100M1G

1.0

1.5

2.0

2.5

3.0

3.5

10

100

1k10k

100k

FREQUENCY (Hz)

SUPPLY VOLTAGE (V)

FREQUENCY (Hz)

Pin Description

PINNAMEFUNCTION1INDigital Control Input2V+Positive Supply Voltage Input3GNDGround4NCAnalog Switch—Normally Closed5COMAnalog Switch—Common6NOAnalog Switch—Normally Open_______________________________________________________________________________________5MAX47140.8Ω, Low-Voltage, Single-SupplySPDT Analog Switch in SC70MAX4714Detailed Description

The MAX4714 is a low-on-resistance (RON), low-volt-age, single-pole/double-throw (SPDT) analog switchthat operates from a +1.6V to +3.6V supply. TheMAX4714 has break-before-make switching. Thisdevice also has fast switching speeds (tON= 18ns,max, tOFF= 12ns, max).

When powered from a +3V supply, the 0.8Ω(max) RONallows high continuous currents to be switched in avariety of applications.

+3.3V supply, IN may be driven low to GND and high to+3.6V. Driving IN rail-to-rail minimizes power consump-tion.

Analog Signal Levels

Analog signals that range over the entire supply voltage(V+ to GND) can be passed with very little change inon-resistance (see Typical Operating Characteristics).The switches are bidirectional, so the NO, NC, andCOM pins can be used as either inputs or outputs.

Applications Information

Logic Inputs

The MAX4714 logic input can be driven up to +3.6Vregardless of the supply voltage. For example, with a

TRANSISTOR COUNT: 135PROCESS: CMOS

Chip Information

Test Circuits/Timing Diagrams

MAX4714V+V+COMRL50ΩINLOGICINPUTGNDSWITCHOUTPUT0VtONLOGIC INPUT WAVEFORMS INVERTED FOR SWITCHESTHAT HAVE THE OPPOSITE LOGIC SENSE.LOGICINPUTVOUTCL35pFVOUT0.9 × V0UTVINHVINL50%tr < 5nstf < 5nsNOOR NCtOFF0.9 × VOUTCL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VN_ RL + RON()Figure 1. Switching Time

MAX4714V+V+LOGICINPUTCOMRL50ΩGNDVOUTVOUTCL35pFVINH50%VINL VN_ NCNOINLOGICINPUT0.9 × VOUTtDCL INCLUDES FIXTURE AND STRAY CAPACITANCE.Figure 2. Break-Before-Make Interval6

_______________________________________________________________________________________

0.8ΩSPDT Analog Switch in SC70

, Low-Voltage, Single-Supply

Test Circuits/Timing Diagrams (continued)V+MAX4714∆VOUTV+VOUTR GENNCCOMOR NOVOUT INCLOFFOFFVGENONGNDIN OFFONOFFVININL TO VINHQ = (∆VOUT)(CL)IN DEPENDS ON SWITCH CONFIGURATION;INPUT POLARITY DETERMINED BY SENSE OF SWITCH.Figure 3. Charge Injection

+3V10nFOFF-ISOLATION = 20log VOUTNETWORK VINANALYZER0 OR V+INV+50Ω50Ω ON-LOSS = 20log VOUTCOMVIN VINNCMAX4714 CROSSTALK = 20log VOUTVOUTMEASREF VIN50ΩNOGND50Ω50ΩMEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND \"OFF\" NO_ OR NC_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND \"ON\" NO_ OR NC_TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.Figure 4. On-Loss, Off-Isolation, and Crosstalk

10nFV+V+COMMAX4714IN VINLCAPACITANCEORMETERNC or VINHNOf = 1MHzGNDFigure 5. Channel Off/On-Capacitance

_______________________________________________________________________________________7

MAX47140.8Ω, Low-Voltage, Single-SupplySPDT Analog Switch in SC70MAX4714Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to www.maxim-ic.com/packages.)SC70, 6L.EPSPACKAGE OUTLINE, 6L SC7021-0077C118_______________________________________________________________________________________

0.8ΩSPDT Analog Switch in SC70

, Low-Voltage, Single-Supply

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to www.maxim-ic.com/packages.)SPE.N3FDUAeb L56TOPMARK2PIN 1AAA0.075x45¡LL2PIN 1 EINDEX AREA1321DA1L1A ATOP VIEWSIDE VIEWBOTTOM VIEWbCOMMON DIMENSIONSMIN.NOM.MAX.A0.0.720.80A1--0.20--D1.451.501.55SECTION A-AE0.951.001.05L0.300.350.40L1----0.08L2----0.05b0.170.200.23e0.50 BSC.PACKAGE OUTLINE, 6L uDFN, 1.5x1.0x0.8mm-DRAWING NOT TO SCALE-21-0147C11Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________9©2004 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

MAX4714