9-78; Rev 3; 2/6 3V/5V, 4Ω, Wideband Quad 2: Analog Multiplexer General Description The is a low-voltage CMOS analog switch containing four 2: multiplexers/demultiplexer. When powered from a single +5V supply, it features a low 4Ω max on-resistance (R ON ),.4Ω max R ON matching between channels, and.8ω RON flatness over the entire signal range. Off-leakage current is only.5na max at +25 C. The features fast turn-on (t ON ) and turn-off (t OFF ) times of 8ns and 6ns, respectively, and is available in QFN, QSOP, TSSOP, and SO packages. This low-voltage multiplexer operates with a +.8V to +5.5V single supply. All digital inputs have +.8V and +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility with +5V operation. Applications / Base-T ATM Switching Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits Relay Replacement Features Guaranteed On-Resistance 4Ω max (+5V Supply) 6Ω max (+3V Supply) Guaranteed Match Between Channels.4Ω max Guaranteed Flatness Over Signal Range.8Ω max.8v Operation R ON = Ω typ Over Temperature t ON = 5ns typ t OFF = 3ns typ Guaranteed Low Leakage Currents.5nA max at +25 C Single-Supply Operation from +.8V to +5.5V Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible Crosstalk: -4dB (MHz) Off-Isolation: -67dB (MHz) 4mm 4mm QFN Package PA R T Ordering Information T EM P R A N G E PIN - PA C K A G E PK G C O D E M AX 4674E E E - 4 C to + 85 C 6 QS OP E 6-4 M AX 4674E U E - 4 C to + 85 C 6 TS S O P U 6-2 M AX 4674E S E - 4 C to + 85 C 6 N ar r ow S O S 6-2 M AX 4674E GE - 4 C to + 85 C 6 QFN - E P * G 644- M AX 4674E GP - 4 C to + 85 C 2 QFN - E P * G 244-3 *EP = Exposed pad. Pin Configuration/Functional Diagram/Truth Table TOP VIEW NC A AO N.C. N.C. A NC NO COM NC2 NO2 COM2 2 3 4 5 6 7 8 CONTROL LOGIC 6 5 4 3 2 9 NC4 NO4 COM4 NC3 NO3 COM3 A X ON SWITCH NONE COM-NC COM2-NC2 COM3-NC3 COM4-NC4 COM-NO COM2-NO2 COM3-NO3 COM4-NO4 6 5 4 3 CONTROL LOGIC NO COM 2 2 NC4 NO4 NC NO 2 NC2 NO2 3 4 9 COM4 NC3 COM NC2 3 4 2 9 8 7 CONTROL LOGIC 6 5 NC4 4 NO4 3 COM4 2 NC3 QSOP/TSSOP/SO 5 6 7 8 COM2 COM3 NO3 NO2 5 NO3 QFN 6 7 8 9 COM2 N.C. N.C. COM3 QFN Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at -888-629-4642, or visit Maxim s website at www.maxim-ic.com.
2: Analog Multiplexer ABSOLUTE MAXIMUM RATINGS, A,...-.3V to +6V COM_, NO_, NC_ (Note)...-.3V to (V +.3V) Continuous Current COM_, NO_, NC_...±mA Peak Current (COM_, NO_, NC_) (pulsed at ms, % duty cycle)...±3ma Continuous Power Dissipation (T A = +7 C) 6-Pin QSOP (derate 8.3mW/ C above +7 C)... 667mW 6-Pin TSSOP (derate 6.7mW/ C above +7 C)...533mW 6-Pin Narrow SO (derate 8mW/ C above +7 C)...64mW 6-Pin QFN (derate 8.5mW/ C above +7 C)...48mW 2-Pin QFN (derate 2mW/ C above +7 C)...6mW Operating Temperature Range E_E...-4 C to +85 C Die Temperature...+5 C Storage Temperature Range...-65 C to +5 C Lead Temperature (soldering, s)...+3 C Note : Signals on NO_, NC_, and COM_ exceeding or are clamped by internal diodes. Limit forward-diode current to maximum current rating. 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 Single +5V Supply ( = +4.5V to +5.5V, V IH = 2.4V, V IL =.8V,, unless otherwise noted. Typical values at TA = +25 C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SWITCH Analog Signal Range V COM_,V NO_, V NC_ V On-Resistance R ON = 4.5V, I COM_ = ma, V NO_ or V NC_ = to On-Resistance Match Between Channels (Notes 4, 5) On-Resistance Flatness (Note 6) NO_, NC_ Off-Leakage Current (Note 7) COM_ Off-Leakage Current (Note 7) COM_ On-Leakage Current (Note 7) DIGITAL I/O (A, ) R ON R FLAT (ON) = 4.5V, I COM_ = ma, V NO_ or V NC_ = to = 4.5V, I COM_ = ma, V NO_ or V NC_ = to = 5.5V; V COM_ = V, I NO_(OFF), 4.5V; V NO_ or V NC_ = 4.5V, I NC_(OFF) V I COM_(OFF) = 5.5V; V COM_ = V, 4.5V; V NO_ or V NC_ = 4.5V, V I COM_(ON) = 5.5V; V COM_ = V, 4.5V; V NO_ or V NC_ =, 4.5V, or floating T A = +25 C 2.2 4 5 T A = +25 C.5.4.5 T A = +25 C.5.8 T A = +25 C -.5 ±. +.5 - + T A = +25 C -.5 ±. +.5 - + T A = +25 C -.5 ±. +.5 - + Input Logic High V IH 2.4 V Input Logic Low V IL.8 V Input Leakage Current I IN V IN = or +5.5V -.5 ± +.5 µa DYNAMIC Turn-On Time (Note 7) t ON R L = Ω, C L = 35pF, V NO_ or V NC_ = 3V, Figure 2 T A = +25 C 8 2 Ω Ω Ω na na na ns 2
2: Analog Multiplexer ELECTRICAL CHARACTERISTICS Single +5V Supply (continued) ( = +4.5V to +5.5V, V IH = 2.4V, V IL =.8V,, unless otherwise noted. Typical values at TA = +25 C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Turn-Off Time (Note 7) t OFF R L = Ω, C L = 35pF, V NO_ or V NC_ = 3V, Figure 2 Break-Before-Make (Note 7) t BBM R L = Ω, C L = 35pF, V NO_ or V NC_ = 3V, Figure 3 T A = +25 C 4 6 8 T A = +25 C 5 ns ns Charge Injection Q V G = 4V, R G =, C L =.nf, Figure 4 pc C L = 5pF, R L = Ω, f = MHz -47 Off-Isolation (Note 8) V ISO f = MHz, Figure 5 f = MHz -67 C L = 5pF, R L = Ω, f = MHz -68 Crosstalk (Note 9) V CT f = MHz, Figure 5 f = MHz -4 db db Total Harmonic Distortion THD R L = 6Ω, f = 2Hz to 2kHz.5 % NO_, NC_ Off-Capacitance C NO_(OFF), C NC_(OFF) V NO_, V NC_ =, f = MHz, Figure 6 pf COM_ Off-Capacitance C COM_(OFF) V COM_ =, f = MHz, Figure 6 2 pf COM_ On-Capacitance C (ON) V C OM_ = V N O_, V N C _ = GN D, f = M Hz, Fi g ure 6 3 pf SUPPLY Supply Range.8 5.5 V Positive Supply Current I+ = +5.5V, V IN = or.. µa ELECTRICAL CHARACTERISTICS Single +3V Supply ( = +2.7V to +3.3V, V IH = 2.V, V IL =.4V, T A =T MIN to, unless otherwise noted. Typical values at T A = +25 C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SWITCH Analog Signal Range V COM, V NO, V NC_ V On-Resistance R ON = 2.7V, I COM_ = ma, V NO_ or V NC_ = to On-Resistance Match Between Channels (Notes 4, 5) On-Resistance Flatness (Note 6) NO_, NC_ Off-Leakage Current (Note 7) R ON R FLAT(ON) = 2.7V, I COM_ = ma, V NO_ or V NC_ = to = 2.7V, I COM_ = ma, V NO_ or V NC_ = to I NO_(OFF), V + = 3.3V ; V C OM _ = V, 3V ; I NC_(OFF) V N O_ or V N C _ = 3V, V T A = +25 C 4 6 8 T A = +25 C.5.4.5 T A = +25 C 2 3 4 T A = +25 C -.5 ±. +.5 - + Ω Ω Ω na 3
2: Analog Multiplexer ELECTRICAL CHARACTERISTICS Single +3V Supply (continued) ( = +2.7V to +3.3V, V IH = 2.V, V IL =.4V, T A =T MIN to, unless otherwise noted. Typical values at T A = +25 C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS COM_ Off-Leakage Current (Note 7) COM_ On-Leakage Current (Note 7) DIGITAL I/O (A, ) I COM_(OFF) V + = 3.3V ; V C OM _ = V, 3V ; V N O_ or V N C _ = 3V, V V + = 3.3V ; V C OM _ = V, 3V ; I COM_(ON) V NO_ or V NC_ = V, 3V, or floating T A = +25 C -.5 ±. +.5 - + T A = +25 C -.5 ±. +.5 - + Input Logic High V IH 2. V Input Logic Low V IL.4 V Input Leakage Current I IN V IN = or +5.5V -.5 ± +.5 µa DYNAMIC Turn-On Time (Note 7) t ON R L = Ω, C L = 35pF, V NO_ or V NC_ =.5V, Figure 2 Turn-Off Time (Note 7) t OFF R L = Ω, C L = 35pF, V NO_ or V NC_ =.5V, Figure 2 Break-Before-Make (Note 7) t BBM R L = Ω, C L = 35pF, V NO_ or V NC =.5V, Figure 3 T A = +25 C 2 22 25 T A = +25 C 5 8 T A = +25 C 5 na na ns ns ns Charge Injection Q V G = 2V, R G =, C L =.nf, Figure 4 C f = MHz -47 Off-Isolation (Note 8) V L = 5pF, R L = Ω, ISO f = MHz, Figure 5 f = MHz -67 C f = MHz -68 Crosstalk (Note 9) V L = 5pF, R L = Ω, CT f = MHz, Figure 5 f = MHz -4 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: Parts are tested at the maximum hot-rated temperature. Limits across the entire temperature range are guaranteed by design and correlation. Note 4: R ON = R ON(MAX) - R ON(MIN). Note 5: R ON matching specifications for QFN packaged parts are guaranteed by design. Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Note 7: Guaranteed by design. Note 8: Off-Isolation = 2log (V COM /V NO ), V COM = output, V NO = input to off switch. Note 9: Between any two switches. 4 8 pc NO_, NC_ Off-Capacitance C NO_(OFF), C NC_(OFF) V NO_ or V NC_ =, f = MHz, Figure 6 pf COM_ Off-Capacitance C COM_(OFF) V COM_ =, f = MHz, Figure 6 2 pf V COM_ = V NO_, V NC_ =, f = MHz, COM_ On-Capacitance C (ON) Figure 6 3 pf SUPPLY Positive Supply Current I+ = 3.3V, V IN = or.. µa db db
2: Analog Multiplexer ( = +5V, T A = +25 C, unless otherwise noted.) RON (Ω) 2 8 6 4 2 ON-RESISTANCE vs. V COM =.8V = 2.5V = 3.V 2 3 4 5 V COM (V) = 5.V - RON (Ω) 3. 2.5 2..5..5 = 5V ON-RESISTANCE vs. V COM T A = +85 C T A = -4 C 2 3 4 5 V COM (V) Typical Operating Characteristics T A = +25 C -2 ICOM (pa) ON/OFF-LEAKAGE CURRT vs. TEMPERATURE I ON_LEAK. -4-5 35 6 85 TEMPERATURE ( C) I OFF_LEAK -3 25 2 CHARGE INJECTION vs. V COM -4 4 35 SUPPLY CURRT vs. SUPPLY VOLTAGE -5 3 25 TURN-ON/-OFF TIME vs. SUPPLY VOLTAGE -6 Q (pc) 5 I+ (pa) 3 25 2 5 ton/toff (ns) 2 5 t ON 5 5 t OFF 2 3 4 5 V COM (V) 5 2 3 4 5 6 (V) 2 3 4 5 (V) ton/toff (ns) 2 8 6 4 2 TURN-ON/-OFF TIME vs. TEMPERATURE t ON t OFF -7 AMPLITUDE (db) 2-2 -4-6 -8 - OFF-ISOLATION, ON-RESPONSE, AND CROSSTALK vs. FREQUCY ON-RESPONSE OFF-ISOLATION CROSSTALK -8 THD (%).2.8.6.4.2..8.6.4 TOTAL HARMONIC DISTORTION vs. FREQUCY -9-4 -2 2 4 6 8 TEMPERATURE ( C) -2.. FREQUCY (MHz).2 k k k FREQUCY (Hz) 5
2: Analog Multiplexer PIN QSOP/TSSOP/SO 2 QFN 6 QFN NAME FUNCTION 2 5 A Address Input 2 6 NC Normally Closed Terminal 3 2 NO Normally Open Terminal 4 3 2 COM Analog Switch Common Terminal 5 4 3 NC2 Normally Closed Terminal 6 5 4 NO2 Normally Open Terminal 7 6 5 COM2 Analog Switch Common Terminal 7, 9, 7, 9 N.C. No Connection 8 8 6 Ground 9 7 COM3 Analog Switch Common Terminal 8 NO3 Normally Open Terminal 2 9 NC3 Normally Closed Terminal 2 3 COM4 Analog Switch Common Terminal 3 4 NO4 Normally Open Terminal 4 5 2 NC4 Normally Closed Terminal 5 6 3 Output Enable, Active Low 6 8 4 Positive Supply Voltage EP EP EP Exposed Pad. Connect to. Pin Description Detailed Description The is a low on-resistance (R ON ), low-voltage, quad 2: analog multiplexer/demultiplexer that operates from a +.8V to +5.5V single supply. The features very fast switching speed (t ON = 8ns max, t OFF = 6ns max) and guaranteed breakbefore-make switching. Its low R ON allows high continuous currents to be switched in a variety of applications. Digital Interface A and are CMOS digital inputs that meet TTL logic levels when = 5V. Note that A and can exceed the voltage at to a maximum of +5.5V. This feature allows operation of the from a +3.3V supply while controlling it with 5V CMOS logic signals. The Pin Configuration/Functional Diagram/Truth Table located on the first page of this data sheet details the operation of the. Applications Information Power-Supply Considerations Overview The construction is typical of most CMOS analog switches. It has two supply pins, and, used to drive the internal CMOS switches and set the limits of the analog voltage on any switches. Reverse ESD-protection diodes are internally connected between each analog-signal pin and both and. If any analog signal exceeds and, one of these diodes conducts. During normal operation, these and other reverse-biased ESD diodes leak, forming the only current drawn from V CC or. Virtually all the analog leakage current comes from the ESD diodes. Although the ESD diodes on a given signal pin are identical and therefore fairly well balanced, they are reverse biased differently. Each is biased by either or and the analog signal. This means 6
2: Analog Multiplexer their leakages will vary as the signal varies. The difference in the two-diode leakages to the and pins constitutes the analog-signal-path leakage current. All analog leakage current flows between each pin and one of the supply terminals, not to the other switch terminal, which is why both sides of a given switch can show leakage currents of either the same or opposite polarity. and power the internal logic and set the input logic limits. Logic inputs have ESD-protection diodes to ground. The logic-level thresholds are TTL/CMOS compatible when is +5V. As rises, the threshold increases; as falls, the threshold decreases. For example, when = +3V, the guaranteed minimum logic-high threshold decreases to 2.V. Low-Voltage Operation The operates from a single supply between +.8V and +5.5V. At room temperature, it actually works with a single supply near or below +.7V; as supply voltage decreases, however, switch on-resistance becomes very high. D EXTERNAL BLOCKING DIODE Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the device. Always sequence on first, followed by the logic inputs and analog signals. If power-supply sequencing is not possible, add two small signal diodes (D, D2) in series with the supply pins for overvoltage protection (Figure ). Adding diodes reduces the analog-signal range to one diode drop below and one diode drop above, but does not affect the device s low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between and should not exceed 6V. These protection diodes are not recommended if signal levels must extend to ground. High-Frequency Performance In 5Ω systems, signal response is reasonably flat up to 5MHz (see the Typical Operating Characteristics). Above 2MHz, the on response has several minor peaks that are highly layout dependent. The problem is not turning the switch on, but turning it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At MHz, off-isolation is about -5dB in 5Ω systems, becoming worse (approximately 2dB per decade) as frequency increases. Higher circuit impedances also degrade off-isolation. Adjacent channel attenuation is about 3dB above that of a bare IC socket and is entirely due to capacitive coupling. TRANSISTOR COUNT: 478 Chip Information * * * * D2 EXTERNAL BLOCKING DIODE *INTERNAL PROTECTION DIODES Figure. Overvoltage Protection Using External Blocking Diodes 7
2: Analog Multiplexer V AO 5Ω AO NO NC V NO_ V IH +.5V V AO Test Circuits/Timing Diagrams 5% t R < 5ns t F < 5ns 9% COM R L C L * t OFF t ON *C L INCLUDES STRAY CAPACITANCE. Figure 2. Turn-On and Turn-Off Times V AO 5Ω AO NC, NO V N V IH +.5V V AO 5% t R < 5ns t F < 5ns COM R L C L * V COM 9% *C L INCLUDES STRAY CAPACITANCE. t BBM Figure 3. Break-Before-Make Interval OR AO NC, NO R G V V G V COM 5Ω C L * VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE- TRANSFER ERROR Q WH THE CHANNEL TURNS OFF. *C L INCLUDES STRAY CAPACITANCE. Q = C L Figure 4. Charge Injection 8
2: Analog Multiplexer nf OR AO NC, NO COM Test Circuits/Timing Diagrams (continued) NETWORK ANALYZER V IN 5Ω 5Ω OFF-ISOLATION = 2log V IN V ON-LOSS = 2log OUT V IN MEAS REF CROSSTALK = 2log V IN 5Ω 5Ω NOTES: MEASUREMTS ARE STANDARDIZED AGAINST SHORTS AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWE COM AND "OFF" NO TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWE COM AND "ON" NO 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 5. Off-Isolation, On-Loss, and Crosstalk OR AO NC, NO COM MHz CAPACITANCE ANALYZER Figure 6. Capacitance 9
2: Analog Multiplexer Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) QSOP.EPS PACKAGE OUTLINE, QSOP.5",.25" LEAD PITCH 2-55 F TSSOP4.4mm.EPS PACKAGE OUTLINE, TSSOP 4.4mm BODY 2-66 I
2: Analog Multiplexer Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) N E H INCHES MILLIMETERS DIM MIN MAX MIN MAX A.53.69.35.75 A.4...25 B.4.9.35.49 C.7..9.25 e.5 BSC.27 BSC E.5.57 3.8 4. H.228.244 5.8 6.2 L.6.5.4.27 SOICN.EPS TOP VIEW VARIATIONS: DIM D D D INCHES MILLIMETERS MIN MAX MIN MAX N MS2.89.97 4.8 5. 8 AA.337.344 8.55 8.75 4 AB.386.394 9.8. 6 AC D A C e B A FRONT VIEW L SIDE VIEW -8 PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE,.5" SOIC APPROVAL DOCUMT CONTROL NO. REV. 2-4 B
2: Analog Multiplexer Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 2,6,2, 24L QFN.EPS PACKAGE OUTLINE 2,6,2,24L QFN, 4x4x.9 MM 2-6 E 2 PACKAGE OUTLINE 2,6,2,24L QFN, 4x4x.9 MM 2-6 E 2 2 2
2: Analog Multiplexer Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 2,6,2, 24L QFN.EPS PACKAGE OUTLINE 2,6,2,24L QFN, 4x4x.9 MM 2-6 E 2 PACKAGE OUTLINE 2,6,2,24L QFN, 4x4x.9 MM 2-6 E 2 2 Revision History Pages changed at Rev 3: 7, 3 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. Maxim Integrated Products, 2 San Gabriel Drive, Sunnyvale, CA 9486 48-737-76 3 26 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.