For free samples & the latest literature: , or phone 1-800-998-8800.For small orders, phone 1-800-835-8769.General DescriptionThe MAX4664/MAX4665/MAX4666 quad analog switch-es feature 5Ωmax on-resistance. On-resistance is matched between switches to 0.5Ωmax and is flat (0.5Ωmax) over the specified signal range. Each switch can handle Rail-to-Rail ®analog signals. The off-leakage cur-rent is only 5nA max at +85°C. These analog switches are ideal in low-distortion applications and are the pre-ferred solution over mechanical relays in automatic test equipment or in applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays.The MAX4664 has four normally closed (NC) switches,the MAX4665 has four normally open (NO) switches, and the MAX4666 has two NC and two NO switches that guarantee break-before-make switching times.These switches operate from a single +4.5V to +36V supply or from dual ±4.5V to ±20V supplies. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using ±15V sup-plies or a single +12V supply.ApplicationsReed Relay Replacement PBX, PABX Systems Test EquipmentAudio-Signal Routing Communication SystemsAvionicsFeatureso Low On-Resistance (5Ωmax)o Guaranteed R ON Match Between Channels (0.5Ωmax)o Guaranteed R ON Flatness over Specified Signal Range (0.5Ωmax)o Guaranteed Break-Before-Make (MAX4666)o Rail-to-Rail Signal Handlingo Guaranteed ESD Protection > 2kV per Method 3015.7o +4.5V to +36V Single-Supply Operation ±4.5V to ±20V Dual-Supply Operation o TTL/CMOS-Compatible Control InputsMAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog Switches________________________________________________________________Maxim Integrated Products1Pin Configurations/Functional Diagrams/Truth Tables19-1504; Rev 0; 7/99Ordering Information continued at end of data sheet.Ordering InformationRail-to-Rail is a registered trademark of Nippon Motorola, Ltd.M A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSNote 1:Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current tomaximum current rating.V+ to GND..............................................................-0.3V to +44V V- to GND..............................................................+0.3V to -44V V+ to V-...................................................................-0.3V to +44V V L to GND........................................(GND - 0.3V) to (V+ + 0.3V)All Other Pins to DGND (Note 1).........(V- - 0.3V) to (V+ + 0.3V) Continuous Current (COM_, NO_, NC_) ........................±100mA Peak Current (COM_, NO_, NC_)(pulsed at 1ms, 10% duty cycle)...............................±300mAContinuous Power Dissipation (T A = +70°C)Narrow SO (derate 8.70mW/°C above +70°C)...............696mW Plastic DIP (derate 10.53mW/°C above +70°C)..............842mW Operating Temperature RangesMAX466_C_E ......................................................0°C to +70°C MAX466_E_E....................................................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10sec).............................+300°CELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, V L = +5V, V IN_H = +2.4V, V IN_L = +0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 2)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.ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)MAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog Switches (V+ = +15V, V- = -15V, V L= +5V, V IN_H= +2.4V, V IN_L= +0.8V, T A= T MIN to T MAX, unless otherwise noted. Typical values are atT A= +25°C.) (Note 2)_______________________________________________________________________________________3M A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS—Single Supply(V+ = +12V, V- = 0, V L = +5V, V IN_H = +2.4V, V IN_L = +0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)ELECTRICAL CHARACTERISTICS—Single Supply (continued)MAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog Switches (V+ = +12V, V- = 0, V L= +5V, V IN_H= +2.4V, V IN_L= +0.8V, T A= T MIN to T MAX, unless otherwise noted. Typical values are at T A= +25°C.)(Note 2)Note 2:The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet.Note 3:Guaranteed by design.Note 4:∆R ON= R ON(MAX)- R ON(MIN).Note 5:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range.Note 6:Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at +25°C.Note 7:Off-isolation = 20log10[V COM_/ (V NC_or V NO_)], V COM_= output, V NC_or V NO_= input to off switch.Note 8:Between any two switches.Note 9:Leakage testing at single supply is guaranteed by testing with dual supplies._______________________________________________________________________________________5M A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches 6_______________________________________________________________________________________Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)2.03.02.54.03.55.04.55.56.56.07.0-20-10-5-1505101520ON-RESISTANCEV COM (V)R O N (Ω)1.52.52.03.53.04.54.05.0-15-50-1051015ON-RESISTANCE vs. V COMAND TEMPERATURE (DUAL SUPPLIES)V COM (V)R O N (Ω)421086121416180693121518212427303336ON-RESISTANCE vs. V COM(SINGLE SUPPLY)V COM (V)R O N (Ω)3.04.54.03.55.05.56.06.57.07.58.0042681012ON-RESISTANCE vs. V COMAND TEMPERATURE (SINGLE SUPPLY)V COM (V)R O N (Ω)040201008060120140160180-10-6-4-8-22410ON/OFF TIMES vs. V COM(DUAL SUPPLIES)V COM (V)t O N , t O F F (n s )680.0110k 1010.11001k 100k-40-10520-253550100958065ON/OFF-LEAKAGE CURRENTvs. TEMPERATURETEMPERATURE (°C)L E A K A G E (p A )-200-1002001000300400500600-20-10-5-1505101520CHARGE INJECTIONvs. V V COM (V)Q (p C )15010025020030004628101214ON/OFF TIMES vs. V COM(SINGLE SUPPLY)V COM (V)t O N , t O F F (n s )5050807011010090120130140150101213111415161720ON/OFF TIMES vs. SUPPLY VOLTAGE(DUAL SUPPIES)V+ = -V (V)t O N , t O F F (n s )18196002001003004005006000101552025303540ON/OFF TIMES vs. SUPPLY VOLTAGE(SINGLE SUPPLY)V+ (V)t O N , t O F F (n s )8060100120140160-60-20-4020406080100ON/OFF TIMES vs. TEMPERATURE(DUAL SUPPLIES)TEMPERATURE (°C)t O N , t O F F (n s )40200.0110.1101001k 10k -60-20-4020406080100SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)I +, I - (p A )-1000.011100.1100FREQUENCY RESPONSEFREQUENCY (MHz)L O S S (d B )-90-80-70-60-50-40-30-20-100200150250300350400-60-200-4020406080100ON/OFF TIMES vs. TEMPERATURE(SINGLE SUPPLY)TEMPERATURE (°C)t O N , t O F F (n s )10050MAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog Switches_______________________________________________________________________________________7Typical Operating Characteristics (continued)(T A = +25°C, unless otherwise noted.)M A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches 8_______________________________________________________________________________________Applications InformationOvervoltage ProtectionProper 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, then V-, 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 supply pins (Figure 1). Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop above V-, but does not affect the devices’ low switch resistance and low leak-age characteristics. Device operation is unchanged,and the difference between V+ and V- should not exceed 44V. These protection diodes are not recom-mended when using a single supply.Off-Isolation at High FrequenciesIn 50Ωsystems, the high-frequency on-response of these parts extends from DC to above 100MHz, with a typical loss of -2dB. When the switch is turned off, how-ever, it behaves like a capacitor, and off-isolation decreases with increasing frequency. (Above 300MHz,the switch actually passes more signal turned off than turned on.) This effect is more pronounced with higher source and load impedances.Figure 1. Overvoltage Protection Using External Blocking DiodesPin DescriptionMAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog Switches_______________________________________________________________________________________9Figure 2. Switching-Time Test CircuitAbove 5MHz, circuit board layout becomes critical,and it becomes difficult to characterize the response of the switch independent of the circuit. The graphs shown in the Typical Operating Characteristics were taken using a 50Ωsource and load connected with BNC connectors to a circuit board deemed “average,”that is, designed with isolation in mind, but not using stripline or other special RF circuit techniques. For criti-cal applications above 5MHz, use the MAX440,MAX441, and MAX442, which are fully characterized up to 160MHz.Figure 3. Charge-Injection Test CircuitM A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches 10______________________________________________________________________________________Figure 6. Switch Off-Capacitance Test Circuit Figure 7. Switch On-Capacitance Test CircuitFigure 4. Off-Isolation Test CircuitFigure 5. Crosstalk Test CircuitMAX4664/MAX4665/MAX46665Ω, Quad, SPST,CMOS Analog SwitchesChip InformationTRANSISTOR COUNT: 108Ordering Information (continued)Package InformationM A X 4664/M A X 4665/M A X 46665Ω, Quad, SPST,CMOS Analog Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.12____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©1999 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)。