19-2240; Rev 0; 10/01 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN Features ♦ 3mm x 3mm 12-Pin QFN Package ♦ Guaranteed On-Resistance: 60Ω (max) (+2.7V supply) 40Ω (max) (+5V supply) ♦ Guaranteed Match Between Channels: 3Ω (max) ♦ Guaranteed Flatness Over Signal Range: 5Ω (max) ♦ Guaranteed Low Leakage Currents: 100pA (max) at +25°C ♦ Switching Time: tON = 60ns, tOFF = 20ns Applications ♦ +1.8V to +5.5V Single-Supply Operation MP3 Players Battery-Operated Equipment Relay Replacement Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits PCMCIA Cards Cellular Phones Modems ♦ Rail-to-Rail® Signal Handling ♦ -3dB Bandwidth: >200MHz ♦ Low Crosstalk: -90dB (1MHz) ♦ High Off-Isolation: -85dB (1MHz) ♦ Low 3pC Charge Injection ♦ THD: 0.02% ♦ +1.8V CMOS-Logic Compatible Ordering Information Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. PART TEMP. RANGE PIN-PACKAGE MAX4704EGC -40°C to +85°C 12 QFN MAX4704EUB -40°C to +85°C 10 µMAX Pin Configurations MAX4704 TOP VIEW COM NO0 ADDA MAX4704 NO3 10 V+ 2 NO1 3 INH 4 GND 5 9 LOGIC µMAX COM 8 NO0 7 ADDA 6 ADDB INH ADDB 1 X X NONE 0 0 0 COM-NO0 0 0 1 COM-NO1 0 1 0 COM-NO2 0 1 1 COM-NO3 11 10 ADDA ON SWITCH X = DON’T CARE N.C. = NO CONNECT V+ 1 N.C. 2 NO2 3 LOGIC NO2 1 12 4 5 6 NO3 NO1 INH 9 ADDB 8 N.C. 7 GND QFN ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX4704 General Description The MAX4704 low-voltage, 4-channel analog multiplexer operates from a single +1.8V to +5.5V supply. The MAX4704 features break-before-make switching action with a tON = 60ns and tOFF = 20ns at +3V. When powered from a +2.7V supply, the device has a 60Ω (max) on-resistance (RON), with 3Ω (max) RON matching and 5Ω max RON flatness. The digital logic inputs are 1.8V-logic compatible from a +2.7V to +3.3V supply. The MAX4704 is available in both a space-saving 12-pin QFN (3mm x 3mm) package and a 10-pin µMAX package. MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) V+ .............................................................................-0.3V to +6V All Other Pins (Note 1)................................ -0.3V to (V+ + 0.3V) Continuous Current COM, NO_ ........................................±20mA Peak Current COM, NO_ (pulsed at 1ms, 10% duty cycle)..................................±40mA ESD per Method 3015.7.......................................................>2kV Continuous Power Dissipation (TA = +70°C) 10-Pin µMAX (derate 4.7mW/°C above +70°C) ......... 330mW 12-Pin QFN (derate 11.9mW/°C above +70°C) ......... 952mW Operating Temperature Range .......................... -40°C to +85°C Storage Temperature Range ............................ -65°C to +150°C Lead Temperature (soldering, 10s) ................................ +300°C Note 1: Signals on INH, ADD_, NO_, and COM exceeding V+ or GND 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 +3V Supply (V+ = +2.7V to +3.3V, VIH = +1.4V, VIL = +0.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) On-Resistance Flatness (Note 5) VCOM, VNO_ 0 +25°C 50 RON V+ = +2.7V, ICOM = 5mA, VNO_ = +1.3V TMIN to TMAX ∆RON V+ = +2.7V, ICOM = 5mA, VNO_ = +1.3V TMIN to TMAX RFLAT (ON) V+ = +2.7V, ICOM = 5mA, VNO_ = +1V, +1.3V, +1.8V TMIN to TMAX +25°C -0.1 TMIN to TMAX -1 60 70 +25°C 1 3 5 +25°C 3 5 10 NO_ Off-Leakage Current (Note 6) INO_(OFF) V+ = +3.3V, VCOM = +0.3V, +3V VNO_ = +3V, +0.3V COM On-Leakage Current (Note 6) V+ = +3.3V, VCOM = +0.3V, +3V VNO_ = +0.3V, +3V, or floating +25°C -0.5 ICOM(ON) TMIN to TMAX -5 COM Off-Leakage Current (Note 6) ICOM(OFF) V+ = +3.3V, VCOM = +0.3V, +3V VNO_ = +3V, +0.3V +25°C -0.5 TMIN to TMAX -5 tTRANS VNO_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX Inhibit Turn-On Time tON VNO_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 3 TMIN to TMAX Inhibit Turn-Off Time tOFF VNO_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 3 TMIN to TMAX Break-Before-Make Time (Note 7) tBBM VNO_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 4 TMIN to TMAX ±0.01 0.1 1 ±0.01 Ω Ω Ω nA 0.5 nA 5 ±0.01 0.5 5 nA DYNAMIC Address Transition Time Charge Injection 2 Q VGEN = 0, RGEN = 0, CL = 1.0nF, Figure 5 +25°C 20 60 70 +25°C 25 60 70 +25°C 10 20 30 +25°C 20 2 2 _______________________________________________________________________________________ ns ns ns ns pC Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN (V+ = +2.7V to +3.3V, VIH = +1.4V, VIL = +0.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS On-Channel -3dB Bandwidth BW Signal = 0dBm, 50Ω in and out, Figure 6 Off-Isolation (Note 8) VISO f = 1MHz, RL = 50Ω, CL = 5pF, Figure 6 -85 dB Crosstalk (Note 9) VCT f = 1MHz, RL = 50Ω, CL = 5pF, Figure 6 -90 dB >200 MHz NO_ Off-Capacitance CNO_(OFF) f = 1MHz, VNO_ = GND, Figure 7 7 pF COM On-Capacitance CCOM(ON) f = 1MHz, VNO_ = GND, Figure 7 19 pF COM Off-Capacitance CCOM(OFF) f = 1MHz, VNO_ = GND, Figure 7 15 pF DIGITAL I/O Input Logic High VIH Input Logic Low VIL Input Leakage Current IIH, IIL 1.4 ADD_, INH = 0 or V+ V 0.5 V -1 1 µA 1.8 5.5 V 1 µA SUPPLY Power-Supply Range V+ Power-Supply Current I+ V+ = +5.5V, ADD_, INH = 0 or V+ ELECTRICAL CHARACTERISTICS—Single +5V Supply (V+ = +4.5V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match Between Channels (Note 4) On-Resistance Flatness (Note 5) VCOM, VNO_ 0 +25°C RON V+ = +4.5V, ICOM = 5mA, VNO_ = +3.5V TMIN to TMAX ∆RON V+ = +4.5V, ICOM = 5mA, VNO_ = +3.5V TMIN to TMAX RFLAT (ON) 30 50 +25°C 1 TMIN to TMAX 2 3 +25°C V+ = +4.5V, ICOM = 5mA, VNO_ = +1V, +2.25V, +3.5V 40 3 5 10 NO_ Off-Leakage Current (Note 6) INO_(OFF) V+ = +5.5V, VCOM = +0.5V, +5V VNO_ = +5V, +0.5V +25°C -0.1 TMIN to TMAX -1 COM On-Leakage Current (Note 6) ICOM(ON) V+ = +5.5V, VCOM = +0.5V, +5V VNO_ = +0.5V, +5V, or floating +25°C -0.5 TMIN to TMAX -5 ±0.01 0.1 1 ±0.01 0.5 5 Ω Ω Ω nA nA _______________________________________________________________________________________ 3 MAX4704 ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) (V+ = +4.5V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX ±0.01 0.5 V+ = +5.5V, VCOM_ = +0.5V, +5V VNO_ = +5V, +0.5V +25°C -0.5 TMIN to TMAX -5 tTRANS VNO_ = +3V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX Inhibit Turn-On Time tON VNO_ = +3V, RL = 300Ω, CL = 35pF, Figure 3 TMIN to TMAX Inhibit Turn-Off Time tOFF VNO_ = +3V, RL = 300Ω, CL = 35pF, Figure 3 TMIN to TMAX Break-Before-Make Time (Note 7) tBBM VNO_ = +3V, RL = 300Ω, CL = 35pF, Figure 4 TMIN to TMAX COM Off-Leakage Current ICOM(OFF) 5 UNITS nA DYNAMIC Address Transition Time Charge Injection Q +25°C 15 35 40 +25°C 18 35 40 +25°C 9 20 30 +25°C 20 ns ns ns 2 VGEN = 0, RGEN = 0, CL = 1.0nF, Figure 5 ns 3 pC On-Channel -3dB Bandwidth BW Signal = 0dBm, 50Ω in and out, Figure 6 >200 MHz Off-Isolation (Note 8) VISO f = 1MHz, RL = 50Ω, CL = 5pF, Figure 6 -85 dB Crosstalk (Note 9) VCT f = 1MHz, RL = 50Ω, CL = 5pF, Figure 6 -90 dB Total Harmonic Distortion THD f = 20Hz to 20kHz, 1Vp-p, RL = 600Ω 0.02 % DIGITAL I/O Input Logic High Input Logic Low Input Leakage Current VIH 2.0 VIL IIH, IIL ADD_, INH = 0 or V+ V 0.8 V -1 1 µA 1.8 5.5 V 1 µA SUPPLY Power-Supply Range V+ Positive Supply Current I+ V+ = +5.5V, ADD_, INH = 0 or V+ 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: -40°C specifications are guaranteed by design. Note 4: ∆RON = RON(MAX) - RON(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 ranges. Note 6: Leakage currents are 100% tested at TA = +85°C. Limits across the full temperature range are guaranteed by correlation. Note 7: Guaranteed by design. Note 8: Off-Isolation = 20log10 (VCOM / VNO_), VCOM = output, VNO_ = input to off switch. Note 9: Between any two switches. 4 _______________________________________________________________________________________ Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN ON-RESISTANCE VS. VCOM (V+ = 3V) 80 V+ = 1.8V RON (Ω) V+ = 3.0V 30 V+ = 5.0V TA = +85°C 20 15 TA = +25°C TA = -40°C 10 10 5 5 10 0 0 0 1 2 3 4 0 0 5 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 VCOM (V) VCOM (V) VCOM (V) SUPPLY CURRENT VS. TEMPERATURE SUPPLY CURRENT VS. LOGIC INPUT VOLTAGE COM ON-LEAKAGE CURRENT vs. TEMPERATURE SUPPLY CURRENT (µA) 12 9 6 V+ = +5V 100 V+ = +3V 10 V+ = +3V VADDB = 0 0 -15 10 V+ = 5V V+ = 3V 10 1 0.1 35 60 85 0 1 2 3 4 -40 5 -15 10 35 60 TEMPERATURE (°C) ADDA (V) TEMPERATURE (°C) COM OFF-LEAKAGE CURRENT vs. TEMPERATURE LOGIC THRESHOLD VS. SUPPLY VOLTAGE INHIBIT TURN-ON/OFF TIME vs. SUPPLY VOLTAGE 100 COM OFF, V+ = 5V 10 NO_ OFF, V+ = 5V VIH 1.00 0.75 VIL 0.50 MAX4704 toc09 1.25 85 35 30 INHIBIT TIME (ns) COM OFF, V+ = 3V 1.50 MAX4704 toc08 MAX4704 toc07 1000 LOGIC THRESHOLD ADD_ (V) -40 100 1 V+ = +5V 3 1000 COM ON-LEAKAGE (pA) VINH = 0 5 MAX4704 toc06 1000 MAX4704 toc04 15 SUPPLY CURRENT (nA) 25 15 20 COM OFF-LEAKAGE (pA) 20 TA = -40°C MAX4704 toc05 RON (Ω) V+ = 2.5V 40 TA = +25°C 30 60 50 TA = +85°C 35 RON (Ω) 70 ON-RESISTANCE VS. VCOM (V+ = 5V) 25 MAX4704 toc03 MAX4704 toc01 40 MAX4704 toc02 ON-RESISTANCE VS. VCOM 90 25 tON 20 15 tOFF 10 0.25 NO_ OFF, V+ = 3V 1 5 0 -40 -15 10 35 TEMPERATURE (°C) 60 85 0 1 2 3 V+ (V) 4 5 1 2 3 4 5 SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 5 MAX4704 Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) 20 9 8 tOFF, V+ = 3V LOSS (dB) 15 6 5 4 V+ = 3V 1 -15 10 35 3 4 0.01 5 0.1 1 10 100 FREQUENCY (MHz) THD vs. FREQUENCY ADDRESS TRANSITION TIME vs. SUPPLY VOLTAGE ADDRESS TRANSITION TIME vs. TEMPERATURE Vp-p = 1V RIN = ROUT = 600Ω 100 tLH 20 15 tHL 10 5 FREQUENCY (Hz) 10k 100k 15 tLH, V+ = 5V tHL, V+ = 3V 10 tHL, V+ = 5V 5 0 0 1k tLH, V+ = 3V 20 1000 MAX4704 toc15 MAX4704 toc14 25 25 ADDRESS TRANSITION TIME (ns) 0.02 30 ADDRESS TRANSITION TIME (ns) 0.03 6 2 VCOM (V) V+ = 5V 10 1 TEMPERATURE (°C) 0.04 0.01 0 85 60 MAX4704 toc13 -40 CROSSTALK -120 0 0 OFF-ISOLATION -90 -100 -110 2 tOFF, V+ = 5V 5 -40 -50 -60 -70 -80 V+ = 5V 3 ON-RESPONSE -10 -20 -30 7 Q (pC) INHIBIT TIME (ns) tON, V+ = 5V 0 MAX4704 toc11 10 MAX4704 toc10 tON, V+ = 3V 10 FREQUENCY RESPONSE CHARGE INJECTION vs. VCOM 25 MAX4704 toc12 INHIBIT TURN-ON/OFF TIME vs. TEMPERATURE THD (%) MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN 1 2 3 SUPPLY VOLTAGE (V) 4 5 -40 -15 10 35 TEMPERATURE (°C) _______________________________________________________________________________________ 60 85 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN PIN µMAX QFN NAME FUNCTION 10 1 V+ — 2, 8 N.C. Positive Supply Voltage No Connection. Not internally connected. 1 3 NO2 Analog Switch 2. Normally open. 2 4 NO3 Analog Switch 3. Normally open. 3 5 NO1 Analog Switch 1. Normally open. INH Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn all switches off. 4 6 5 7 GND Ground 6 9 ADDB Address Decoder Selection B 7 10 ADDA Address Decoder Selection A 8 11 NO0 Analog Switch 0. Normally open. 9 12 COM Analog Switch Common Terminal Detailed Description The MAX4704 low-voltage, 4-channel analog multiplexer operates from a single +1.8V to +5.5V supply. When powered from a +2.7V supply, the device has a 60Ω (max) on-resistance (RON), with 3Ω (max) RON matching and 5Ω (max) RON flatness. The digital logic inputs are +1.8V-logic compatible from a +2.7V to +3.3V supply. Applications Information Digital Control Inputs The MAX4704 logic inputs are +1.8V CMOS logic compatible for 3V operation and TTL compatible for 5V operation of V+. Driving ADD_ rail-to-rail minimizes power consumption. analog signal can dip below GND, add D2. Adding protection diodes reduces the analog range to a diode drop (about 0.7V) below V+ (for D1), and a diode drop above ground (for D2). On-resistance increases slightly at low supply voltages. Maximum supply voltage (V+) must not exceed +6V. Adding protection diode D2 causes the logic threshold to be shifted relative to GND. TTL compatibility is not guaranteed when D2 is added. Protection diodes D1 and D2 also protect against some overvoltage situations. In the circuit in Figure 1, if the supply voltage is below the absolute maximum rating, and if a fault voltage up to the absolute maximum rating is applied to an analog signal pin, no damage will result. Analog Signal Levels Analog signals that range over the entire supply voltage (V+ to GND) are passed with very little change in on-resistance (see Typical Operating Characteristics). The switches are bidirectional, so the NO_ and COM pins can be either inputs or outputs. POSITIVE SUPPLY D1 V+ MAX4704 Power-Supply Sequencing and Overvoltage Protection Caution: Do not exceed the absolute maximum ratings because stresses beyond those listed may cause permanent damage to devices. Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals, especially if the analog signal is not current limited. If this sequencing is not possible, and if the analog inputs are not current limited to <20mA, add a small-signal diode (D1) as shown in Figure 1. If the NO COM Vg GND D2 Figure 1. Overvoltage Protection Using Two External Blocking Diodes _______________________________________________________________________________________ 7 MAX4704 Pin Description MAX4704 Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN Test Circuits/Timing Diagrams V+ V+ VADD 50% VADD V+ NO0 ADDA ADDB VNO_ 0 NO1–NO2 MAX4704 INH VNO0 90% 90% NO3 COM VOUT GND 35pF VOUT 0 300Ω tTRANS tTRANS Figure 2. Address Transition Time V+ V+ NO0 ADDA ADDB 50% VINH V+ VNO_ 0 NO1–NO3 VNO0 90% MAX4704 VINH INH COM VOUT GND 35pF 90% VOUT 0 300Ω tON tOFF Figure 3. Inhibit Switching Times V+ tR < 5ns tF < 5ns V+ VADD VADD V+ NO0–N03 ADDA VNO_ 50% 0 ADDB VCOM 90% MAX4704 INH VOUT COM GND 300Ω 35pF VOUT 0 tBBM Figure 4. Break-Before-Make Interval 8 _______________________________________________________________________________________ Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN V+ V+ VINH VNO = 0 V+ NO_ CHANNEL SELECT 0 ADDB ADDA MAX4704 ∆ VOUT VOUT VINH INH VOUT COM CL 1000pF GND ∆ VOUT IS THE MEASURED VOLTAGE DUE TO CHARGETRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = ∆ VOUT X CL REPEAT TEST FOR EACH SECTION. Figure 5. Charge Injection V+ 10nF VIN V+ CHANNEL SELECT NO_ ADDA ADDB NETWORK ANALYZER 50Ω 50Ω OFF-ISOLATION = 20log MAX4704 ON-LOSS = 20log VOUT INH COM MEAS. REF. CROSSTALK = 20log GND 50Ω VOUT VIN VOUT VIN VOUT VIN 50Ω MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL (A, B) TO OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. Figure 6. Off-Isolation, On-Loss, and Crosstalk Chip Information V+ TRANSISTOR COUNT: 256 V+ CHANNEL SELECT PROCESS: CMOS NO_ NO_ ADDA ADDB MAX4704 INH COM GND 1MHz CAPACITANCE ANALYZER Figure 7. NO_/COM Capacitance _______________________________________________________________________________________ 9 MAX4704 Test Circuits/Timing Diagrams (continued) Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN 32L QFN, 3x3x0.85.EPS MAX4704 Package Information 10 ______________________________________________________________________________________ Low-Voltage, 60Ω, 4:1 Analog Multiplexer in QFN 10LUMAX.EPS 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, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX4704 Package Information (continued)