MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches General Description Features The MAX4729/MAX4730 single-pole/double-throw (SPDT) switches operate from a single supply ranging from +1.8V to +5.5V. These switches provide low 3.5Ω on-resistance (RON), as well as 0.45Ω RON flatness with a +2.7V supply. These devices typically consume only 1nA of supply current, making them ideal for use in lowpower, portable applications. The MAX4729/MAX4730 feature low-leakage currents over the extended temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. o Low 3.5Ω RON (+2.7V Supply) o 0.45Ω RON Flatness (+2.7V Supply) o 0.05Ω RON Match Between Channels (+2.7V Supply) o Tiny SC70 and µDFN Packages o -3dB Bandwidth: 300MHz o Low On-Capacitance: 19.5pF o 0.036% Total Harmonic Distortion The MAX4729/MAX4730 are available in small 6-pin SC70 and 6-pin µDFN packages. The MAX4729/ MAX4730 are offered in three pinout configurations to ease design. The MAX4729/MAX4730 are specified over the extended -40°C to +85°C temperature range. o Low Supply Current: 1nA o +1.8V to +5.5V Single-Supply Operation Applications Battery-Operated Equipment Audio and Video-Signal Routing Low-Voltage Data-Acquisition Systems Sample-and-Hold Circuits Communications Circuits Relay Replacement Pin Configurations/Functional Diagrams/Truth Table TOP VIEW MAX4729 MAX4729 MAX4730 IN 1 6 NO NO 1 6 NC V+ 2 5 COM V+ 2 5 GND 3 4 NC IN 3 4 NO 1 6 IN COM GND 2 5 V+ GND NC 3 4 COM µDFN SC70 SC70 µDFN MAX4729/ MAX4730 IN NC NO 0 1 ON OFF OFF ON SWITCHES SHOWN FOR LOGIC 0 INPUT. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. 19-3284; Rev 2; 6/14 MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS (All voltages referenced to ground.) V+, IN .......................................................................-0.3V to +6V COM, NO, NC (Note 1)..................................-0.3V to (V+ +0.3V) Continuous Current (IN, V+, GND) ...................................±30mA Continuous Current (COM, NO, NC) ................................±80mA Peak Current COM, NO, NC (Pulsed at 1ms, 10% Duty Cycle)................................±150mA Continuous Power Dissipation (TA = +70°C) µDFN (derate 2.1mW/°C above +70°C)........................168mW SC70 (derate 3.1mW/°C above +70°C) ........................245mW Operating Temperature Range ...........................-40°C to +85°C Maximum Junction Temperature .....................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C Note 1: Signals on NO, NC, or COM exceeding V+ or GND are clamped by internal diodes. Signals on IN exceeding GND are clamped by an internal diode. 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 (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.4V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range On-Resistance (Note 6) On-Resistance Match Between Channels (Notes 3, 6) On-Resistance Flatness (Note 4) VCOM, VNO, VNC RON ΔRON RFLAT(ON) 0 V+ = 2.7V, ICOM = 10mA, VNO or VNC = 0V to V+ TA = +25°C 3.5 TA = -40°C to +85 5.7 V+ = 2.7V, ICOM = 10mA, TA = +25°C VNO or VNC = 0.7V, 1.2V, 2V TA = -40°C to +85 (MAX4729) 0.05 V+ = 2.7V, ICOM = 10mA, TA = +25°C VNO or VNC = 0.7V, 1.2V, 2V TA = -40°C to +85 (MAX4730) 0.2 V+ = 2.7V, ICOM = 10mA, TA = +25°C VNO or VNC = 0.7V, 1.2V, 2V TA = -40°C to +85 (MAX4729) 0.8 V+ = 2.7V, ICOM = 10mA, TA = +25°C VNO or VNC = 0.7V, 1.2V, 2V TA = -40°C to +85 (MAX4730) 0.45 NO, NC Off-Leakage Current INO (OFF), INC (OFF) V+ = 3.3V, VCOM = 1V, 3V, VNO or VNC = 3V, 1V COM On-Leakage Current ICOM (ON) V+ = 3.3V, VCOM = 1V or 3V, VNO or VNC = 1V, 3V, or float 5.5 Ω 0.15 0.2 0.34 Ω 0.37 1.5 2.2 0.95 Ω 1.3 TA = +25°C -2 TA = -40°C to +85 -3 TA = +25°C -3 TA = -40°C to +85 -4 2.0 +0.01 +2 nA +3 +0.01 +3 nA +4 DIGITAL INPUTS Input Logic High VIH TA = -40°C to +85 Input Logic Low VIL TA = -40°C to +85 Input Leakage Current IIN 2 VIN = 0V or 3.6V TA = -40°C to +85 -1 V +0.005 0.4 V +1 µA Maxim Integrated MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.4V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS TA Turn-On Time (Note 5) tON VNO, VNC = 2V, RL = 300Ω, CL = 35pF, Figure 1 TA = -40°C to +85 Turn-Off Time (Note 5) tOFF VNO, VNC = 2V, RL = 300Ω, CL = 35pF, Figure 1 TA = -40°C to +85 VNO, VNC = 2V, RL = 300Ω, CL = 35pF, Figure 1 TA = -40°C to +85 MIN TYP MAX 18 45 UNITS DYNAMIC Break-Before-Make (Note 5) Charge Injection Q TA = +25°C 45 TA = +25°C 10 26 26 TA = +25°C 5 ns ns 1 VGEN = 0V, RGEN = 0, CL = 1.0nF, Figure 3 ns 3 pC NO, NC Off-Capacitance CNO(OFF), CNC(OFF) f = 1MHz, Figure 4 6.5 pF Switch On-Capacitance CON f = 1MHz, Figure 4 19.5 pF Off-Isolation (Note 7) VISO VNO = VNC = 1VRMS, RL = 50Ω, CL = 5pF, Figure 2 On-Channel Bandwidth -3dB f = 1MHz -67 f = 10MHz -45 BW Signal = 0dBm, 50Ω in and out, Figure 2 300 Crosstalk (Note 8) VCT NO or NC = 1VRMS, CL = 5pF, RL = 50Ω, Figure 2 Total Harmonic Distortion THD RL = 600Ω, VNC or VNO = 2VP-P, f = 20Hz to 20kHz f = 1MHz -67 f = 10MHz -52 +25°C dB MHz dB 0.035 % POWER SUPPLY Power-Supply Range Positive Supply Current V+ I+ 1.8 V+ = 5.5V, VIN = 0V or 5.5V TA = +25°C TA = -40°C to +85 5.5 0.001 1 V µA Note 2: SC70 and µDFN parts are 100% tested at TA = +25°C. Limits across the full-temperature range are guaranteed by design and correlation. Note 3: ΔRON = RON(MAX) - RON(MIN). Note 4: RON flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 5: Guaranteed by design. Note 6: µDFN is guaranteed by design. Note 7: Off-Isolation = 20log10 (VO / VI), where VO is VCOM and VI is either VNC or VNO from the network analyzer. Note 8: Crosstalk is measured between the two switches. Maxim Integrated 3 MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) TA = +85°C 35 TA = +25°C V+ = 2.5V 15 25 20 RON (Ω) RON (Ω) TA = -40°C V+ = 3V V+ = 4.5V V+ = 5V 10 5 3 2 15 10 TA = +25°C TA = -40°C 1 5 0 1 2 3 4 5 0 0 0.3 0.6 0.9 1.2 1.5 VCOM (V) VCOM (V) ON-RESISTANCE vs. VCOM (V+ = +5V) ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE TA = +85°C 2.0 1.5 TA = +25°C 1.0 TA = -40°C 0 0.5 1.0 1.5 2.0 2.5 3.0 VCOM (V) 500 ON, VCC = 5V 400 1.8 CHARGE INJECTION vs. VCOM 60 50 CHARGE INJECTION (pC) 2.5 MAX4729 toc04 3.0 ON/OFF-LEAKAGE CURRENT (pA) 0 OFF, VCC = 5V 300 ON, VCC = 3V 200 OFF, VCC = 3V 100 MAX4729 toc06 0 MAX4729 toc05 RON (Ω) 20 RON (Ω) TA = +85°C 4 30 MAX4729 toc03 V+ = 1.8V 5 MAX4729 toc02 40 MAX4729 toc01 30 25 ON-RESISTANCE vs. VCOM (V+ = +3V) ON-RESISTANCE vs. VCOM (V+ = +1.8V) ON-RESISTANCE vs. VCOM 40 5V 30 20 0 10 -100 0 3V 1.8V 1 2 3 4 -40 -15 10 35 60 SUPPLY CURRENT vs. TEMPERATURE SUPPLY CURRENT vs. LOGIC INPUT VOLTAGE 1,000,000 2 3 4 5 tON/tOFF vs. SUPPLY VOLTAGE 100,000 30 10,000 SUPPLY CURRENT (nA) V+ = 5V 600 V+ = 3V 400 25 1000 100 V+ = 5V V+ = 3V 10 tON 20 15 tOFF 1 10 0.1 200 5 0.01 0 0 0.001 -40 -15 10 35 TEMPERATURE (°C) 4 1 35 MAX4729 toc08 MAX4729 toc07 800 0 85 VCOM (V) TEMPERATURE (°C) 1000 SUPPLY CURRENT (pA) 5 COM VOLTAGE (V) tON/tOFF (ns) 0 MAX4729 toc09 0 60 85 0 2 4 LOGIC INPUT VOLTAGE (V) 6 1.5 2.5 3.5 4.5 SUPPLY VOLTAGE (V) 5.5 Maxim Integrated MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) tON/tOFF vs. TEMPERATURE 5 V+ = 5V -50 -15 10 35 60 -50 -70 -70 V+ = 5V -80 50Ω IN AND OUT V+ = 3V 1 10 100 0.1 1000 1 10 100 TEMPERATURE (°C) FREQUENCY (MHz) FREQUENCY (MHz) ON-LOSS BANDWIDTH TOTAL HARMONIC DISTORTION vs. FREQUENCY TOTAL HARMONIC DISTORTION vs. FREQUENCY V+ = 5V OUTPUT IMPEDANCE = 600Ω f = 20Hz to 20kHz V+ = 3V, VGEN = 3VP-P 0.05 -2 -4 -6 0.04 V+ = 3V, VGEN = 2VP-P 0.03 V+ = 5V, VGEN = 5VP-P 0.02 -5 OUTPUT IMPEDANCE = 600Ω MAX4730 V+ = 3V, VGEN = 3VP-P 0.05 THD (%) THD (%) 0.04 -3 V+ = 3V, VGEN = 2VP-P 0.03 0.02 V+ = 5V, VGEN = 3VP-P V+ = 5V, VGEN = 5VP-P 0.01 0.01 0 0 V+ = 5V, VGEN = 3VP-P 50Ω IN AND OUT -7 0.1 1 10 100 1000 1000 0.06 MAX4729 toc14 0.06 MAX4729 toc13 V+ = 3V 0.01 50Ω IN AND OUT -90 0.1 85 0 -1 -40 -60 -90 -40 -30 -60 -80 0 RESPONSE (dB) V+ = 5V -40 MAX4729 toc15 tOFF 10 -20 RESPONSE (dB) V+ = 5V V+ = 3V -10 V+ = 3V -30 MAX4729 toc12 -20 RESPONSE (dB) 15 0 MAX4729 toc11 -10 tON 20 tON/tOFF (ns) 0 MAX4729 toc10 V+ = 3V 25 CROSSTALK OFF-ISOLATION 30 0.01 FREQUENCY (MHz) 0.1 1 10 100 0.01 FREQUENCY (kHz) 0.1 1 10 100 FREQUENCY (kHz) Pin Description PIN MAX4729 MAX4730 SC70 µDFN SC70/µDFN 1 3 6 2 2 3 4 4 6 NAME IN Logic-Control Input 5 V+ Positive Supply Voltage 2 GND 3 NC 5 5 4 COM 6 1 1 NO Maxim Integrated FUNCTION Ground Analog Switch Normally Closed Terminal Analog Switch Common Terminal Analog Switch Normally Open Terminal 5 MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches Detailed Description The MAX4729/MAX4730 single-pole/double-throw (SPDT) switches operate from a single supply ranging from +1.8V to +5.5V. These switches provide low 3.5Ω on-resistance (RON), as well as 0.45Ω RON flatness with a 2.7V supply. These devices typically consume only 1nA of supply current, making them suitable for use in low-power, portable applications. The MAX4729/ MAX4730 feature low-leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. Applications Information supply, IN can be driven low to GND and high to +5.5V, allowing for mixing of logic levels in a system. With a 2.7V to 3.6V power-supply voltage range, the logic thresholds are set so VIL = 0.4V (max) and VIH = 2V (min). Power-Supply Sequencing and Overvoltage Protection Caution: Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the device. 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. Digital Control Inputs The MAX4729/MAX4730 logic inputs accept up to +5.5V, regardless of supply voltage. For example, with a +3.3V V+ VNO/NC V+ NO/NC NC/NO V+ OPEN 50% 50% IN tr < 5ns tf < 5ns 0V MAX4729 MAX4730 COM VIN VCOM IN RL GND VNO/NC VCOM 0V CL 90% 90% tON tOFF V+ V+ VS V+ NO NC 0V MAX4729 MAX4730 COM VIN IN VCOM RL GND 50% 50% IN VS VS 90% VCOM 90% 0V CL tBBM tBBM tBBM = tON(NC) - tOFF(NO) OR tBBM = tON(NO) - tOFF(NC) Figure 1. Switching Times 6 Maxim Integrated MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches V+ 0.1μF V+ NETWORK ANALYZER 50Ω 50Ω VIN NO OR NC 50Ω MAX4729 MAX4730 VMEAS MEAS COM V+ VREF IN REF 50Ω GND MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM AND “OFF” NO OR NC TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM AND “ON” TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. 50Ω V OFF-ISOLATION = 20log MEAS VREF V ON-LOSS = 20log MEAS VREF CROSSTALK = 20log VMEAS VREF Figure 2. Off-Isolation/On-Loss Bandwidth, Crosstalk V+ MAX4729 MAX4730 ΔVOUT V+ SWITCH INPUT RGEN COM NO OR NC SWITCH OUTPUT VOUT VOUT CL V GEN GND IN V+ IN 0V OFF ON OFF Q = (ΔV OUT )(C L ) LOGIC INPUT (0 TO V+) Figure 3. Charge Injection V+ V+ NO OR NC MAX4729 MAX4730 AS REQUIRED f = 1MHz CAPACITANCE ANALYZER COM IN GND Figure 4. NO, NC, and COM Capacitance Maxim Integrated 7 MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches Chip Information PROCESS: CMOS Ordering Information PART TEMP RANGE PIN-PACKAGE -40°C to +85°C 6 SC70 MAX4729ELT+T -40°C to +85°C MAX4730EXT+T -40°C to +85°C MAX4730ELT+T -40°C to +85°C 6 µDFN MAX4729EXT+T Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 6 µDFN 6 SC70 X6SN+1 21-0077 90-0189 6 SC70 6 µDFN L611+1 21-0147 90-0080 +Denotes lead(Pb)-free/RoHS-compliant package. 8 Maxim Integrated MAX4729/MAX4730 Low-Voltage 3.5Ω, SPDT, CMOS Analog Switches Revision History REVISION NUMBER REVISION DATE 2 6/14 DESCRIPTION ELT+ production status corrected PAGES CHANGED — Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2014 Maxim Integrated Products, Inc. 9 Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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