19-1714; Rev 1; 7/12 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches Features o ESD-Protected NO, NC ±15kV—Human Body Model ±15kV—IEC 1000-4-2, Air-Gap Discharge ±8kV—IEC 1000-4-2, Contact Discharge o Guaranteed On-Resistance 70Ω +5V Supply 120Ω with Single +3V Supply o On-Resistance Match Between Channels (2Ω max) o Low On-Resistance Flatness: 4Ω max o Guaranteed Low Leakage Currents 0.5nA Off-Leakage (at TA = +25°C) 0.5nA On-Leakage (at TA = +25°C) o Guaranteed Break-Before-Make at 5ns (MAX4561 only) o Rail-to-Rail Signal Handling Capability o TTL/CMOS-Logic Compatible with +5V Supplies o Industry Standard Pin-Outs MAX4561 Pin Compatible with MAX4544 MAX4568/MAX4569 Pin Compatible with MAX4514/MAX4515 The MAX4561/MAX4568/MAX4569 are low-voltage, ESD-protected analog switches. The normally open (NO) and normally closed (NC) inputs are protected against ±15kV electrostatic discharge (ESD) without latchup or damage, and the COM input is protected against 2.5kV ESD. These switches operate from a single +1.8V to +12V supply. The 70Ω at 5V (120Ω at 3V) on-resistance is matched between channels to 2Ω max, and is flat (4Ω max) over the specified signal range. The switches can handle Rail-to-Rail® analog signals. Off-leakage current is only 0.5nA at +25°C and 5nA at +85°C. The digital input has +0.8V to +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using a single +5V supply. The MAX4561 is a single-pole/double-throw (SPDT) switch. The MAX4568 NO and MAX4569 NC are single-pole/single-throw (SPST) switches. The MAX4561 is available in a 6-pin SOT23 package, and the MAX4568/MAX4569 are available in 5-pin SOT23 packages. ________________________Applications High-ESD Environments Ordering Information Battery-Powered Systems SOT TOP MARK PINPACKAGE Low-Voltage Data-Acquisition Systems TEMP RANGE PART MAX4561EUT+T -40°C to +85°C 6 SOT23 AAIE Sample-and-Hold Circuits MAX4568EUK+T -40°C to +85°C 5 SOT23 ADOE MAX4569EUK+T -40°C to +85°C 5 SOT23 ADOF Audio and Video Signal Routing Communications Circuits +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW + + IN 1 6 NO V+ 2 5 COM 4 NC GND 3 MAX4561 COM + 1 5 V+ COM 1 5 V+ 4 IN NC 2 NO 2 MAX4568 GND 3 4 IN MAX4569 GND 3 SOT23 SOT23 SOT23 LOGIC NO NC LOGIC SWITCH LOGIC SWITCH 0 1 OFF ON ON OFF 0 1 OFF ON 0 1 ON OFF SWITCHES SHOWN FOR LOGIC "0" INPUT. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX4561/MAX4568/MAX4569 General Description MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ................................................................-0.3 to +13V IN, COM, NO, NC to GND (Note 1) ..............-0.3V to (V+ + 0.3V) Continuous Current (any terminal)....................................±10mA Peak Current (NO, NC, COM; pulsed at 1ms 10% duty cycle).........±30mA ESD Protection per Method IEC 1000-4-2 (NO, NC) Air-Gap Discharge ........................................................±15kV Contact Discharge ..........................................................±8kV ESD Protection per Method 3015.7 V+, GND, IN, COM.......................................................±2.5kV NO, NC..........................................................................±15kV Continuous Power Dissipation (TA = +70°C) 5-Pin SOT23 (derate 3.1mW/C above +70°C .............247mW 6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW Operating Temperature Range ...........................-40°C to +85°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, COM, or IN exceeding V+ or GND are clamped by internal diodes. Limit forward 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 (V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range On-Resistance On-Resistance Match Between Channels (Note 4) VCOM, VNO, VNC 0 RON V+ = 4.5V, ICOM = 1mA; VNO or VNC = 1V, 3.5V ∆RON V+ = 4.5V, ICOM =1mA; VNO or VNC = 1V, 3.5V On-Resistance Flatness (Note 5) RFLAT(ON) V+ = 4.5V, ICOM = 1mA; VNO or VNC = 1V, 2.25V, 3.5V Off-Leakage Current (NO or NC) INO(OFF), INC(OFF) V+ = 5.5V, VCOM = 1V, 4.5V; VNO or VNC = 4.5V, 1V COM Off-Leakage Current (MAX4568/MAX4569 only) ICOM(OFF) V+ = 5.5V, VCOM = 1V, 4.5V; VNO or VNC = 4.5V, 1V COM On-Leakage Current ICOM(ON) V+ = 5.5V, VCOM = 1V, 4.5V; VNO or VNC = 1V, 4.5V or unconnected TA = +25°C 45 TA = TMIN to TMAX 75 TA = +25°C 0.5 2 TA = TMIN to TMAX TA = +25°C 2 3 TA = +25°C TA = TMIN to TMAX Ω Ω TA = TMIN to TMAX TA = +25°C 70 4 5 -0.5 0.01 -5 -0.5 0.5 5 0.01 Ω nA 0.5 nA TA = TMIN to TMAX -5 5 TA = +25°C -1 1 TA = TMIN to TMAX -10 10 nA LOGIC INPUT Input Logic High VIH Input Logic Low VIL Input Leakage Current IIN 2 2.4 VIN = 0 or V+ -1 V 0.8 V 1 µA ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches (V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX 90 150 UNITS SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON VNO, VNC = 3V, RL = 300Ω, CL = 35pF; Figure 1 TA = +25°C Turn-Off Time tOFF VNO, VNC = 3V, RL = 300Ω, CL = 35pF, Figure 1 TA = +25°C Break-Before-Make Delay (MAX4561 only) tBBM VNO, VNC = 3V, RL = 300Ω, CL = 35pF, Figure 2 Charge Injection Q TA = TMIN to TMAX 180 40 TA = TMIN to TMAX 5 VGEN = 2V, CL = 1.0nF, RGEN = 0; Figure 3 TA = +25°C 80 100 50 MAX4561 17 MAX4568/9 6 ns ns ns pC NO or NC Off Capacitance COFF VNO = VNC = GND, f = 1MHz, Figure 4 TA = +25°C 20 pF COM Off-Capacitance (MAX4568/MAX4569 only) CCOM VCOM = GND, f = 1MHz, Figure 4 TA = +25°C 12 pF COM On-Capacitance CCOM VCOM = VNO, VNC = GND, f = 1MHz, Figure 4 TA = +25°C MAX4561 31 MAX4568/9 20 pF Off-Isolation (Note 6) VISO VNO = VNC = 1VRMS, RL = 50Ω; CL = 5pF, f = 1MHz; Figure 5 TA = +25°C -75 dB Total Harmonic Distortion THD RL = 600Ω, 5Vp-p, f = 20Hz to 20kHz TA = +25°C 0.01 % ESD SCR Holding Current IH TA = +25°C 110 mA TA = +85°C 70 POWER SUPPLY Power-Supply Range Positive Supply Current V+ I+ 1.8 V+ = 5.5V, VIN = 0 or V+ TA = +25°C TA = TMIN to TMAX 12 0.05 1 10 V µA 3 MAX4561/MAX4568/MAX4569 ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) ELECTRICAL CHARACTERISTICS—Single +3V Supply (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.6V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER ANALOG SWITCH SYMBOL On-Resistance CONDITIONS ICOM = 1mA, V NO or VNC = 1.5V, V+ = 2.7V RON MIN TA = +25°C TYP MAX 75 120 TA = T MIN to TMAX UNITS Ω 150 LOGIC INPUT Input Logic High VIH Input Logic Low VIL 2.0 V 0.6 V SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON VNO or VNC = 1.5V, RL = 300Ω, TA = +25°C CL = 35pF, Figure 1 TA = T MIN to TMAX 150 Turn-Off Time tOFF VNO or VNC = 1.5V, RL = 300Ω, TA = +25°C CL = 35pF, Figure 1 TA = T MIN to TMAX 60 Break-Before-Make Delay (MAX4561 only) TBBM VNO or V NC = 3V, R L = 300Ω, T = +25°C A CL = 35pF, Figure 2 250 ns 300 100 ns 150 1.5 ns 80 Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used in this data sheet. Note 3: Parameters are 100% tested at +25°C and guaranteed by correlation at the full rated temperature. Note 4: ∆RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the specified analog signal ranges. Note 6: Off-Isolation = 20log10 (VCOM/VNO), VCOM = output, VNO = input to off switch. Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. TEMPERATURE 50 RDS(ON) (Ω) V+ = +1.8V 150 V+ = +2.5V V+ = +3.3V 100 V+ = +12V V+ = +5V TA = +85°C TA = -40°C TA = +25°C 20 V+ = +9V 10 4 8 VCOM (V) 1400 1200 1000 800 ON 600 OFF 200 0 0 0 0 1600 400 50 4 40 30 1800 LEAKAGE CURRENT (pA) 200 V+ = 5V MAX4561/8/9 TOC3 60 MAX4561/8/9-01 250 LEAKAGE CURRENT vs. TEMPERATURE MAX4561/8/9-02 ON-RESISTANCE vs. VCOM AND SUPPLY VOLTAGE RON (Ω) MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches 12 0 1 2 3 VCOM (V) 4 5 -40 -20 0 20 40 60 TEMPERATURE (°C) 80 100 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches V+ = 3V tON 80 60 tOFF 40 20 V+ = 5V tON 100 tON/tOFF (ns) tON/tOFF (ns) SUPPLY CURRENT (nA) 30 V+ = 5V VCOM = 3V 100 40 TURN-ON/TURN-OFF TIME vs. VCOM 120 MAX4561/8/9-05 V+ = 12V 50 120 MAX4561/8/9-04 60 TURN-ON/TURN-OFF TIME vs. TEMPERATURE MAX4561/8/9-06a SUPPLY CURRENT vs. TEMPERATURE AND SUPPLY VOLTAGE 80 60 tOFF 40 V+ = 5V 20 20 10 0 0 0 -40 -40 -20 0 20 40 60 80 -20 0 100 20 40 60 0 80 1 2 3 4 TEMPERATURE (°C) VCOM (V) TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE SCR HOLDING CURRENT vs. TEMPERATURE 5 TEMPERATURE (°C) 140 120 200 300 180 160 250 tON/tOFF (ns) 100 80 60 tOFF 200 150 20 50 0 0 0.5 1.0 1.5 2.0 2.5 VCOM (V) IH 120 100 80 60 20 0 1 3.0 140 40 tOFF 2 3 4 SUPPLY VOLTAGE (V) -60 5 -40 -20 0 20 40 60 80 100 TEMPERATURE (°C) MAX4561 CHARGE INJECTION vs. VCOM MAX4568/MAX4569 CHARGE INJECTION vs. VCOM 5 20 0 MAX4561/8/9-09b 10 MAX4561/8/9-09a 15 -5 10 -10 Q (pC) 0 tON 100 40 Q (pC) tON/tOFF (ns) 350 HOLDING CURRENT (mA) tON MAX4561/8/9-07 V+ = 3V MAX4561/8/9-06b 160 MAX4561/8/9-08 TURN-ON/TURN-OFF TIME vs. VCOM V+ = 5V -15 V+ = 3V 5 -20 -25 0 V+ = 3V V+ = 5V -30 -5 -35 -10 -40 0 1 2 3 VCOM (V) 4 5 0 1 2 3 4 5 VCOM (V) 5 MAX4561/MAX4568/MAX4569 Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) TOTAL HARMONIC DISTORTION vs. FREQUENCY FREQUENCY RESPONSE 0 -20 0.1 THD (%) ON -40 OFF -60 MAX4561/8/9-11 1 MAX4561/8/9-10 20 LOSS (dB) MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches 0.01 CROSSTALK MAX4561 600Ω IN and OUT V+ = 5V -80 -100 0.01 1 0.1 10 100 0.001 1000 10 FREQUENCY (MHz) 100 1000 10,000 100,000 FREQUENCY (Hz) Pin Description PIN NAME MAX4568 MAX4569 1 4 4 IN Logic Control Input 2 5 5 V+ Positive Supply Voltage 3 3 3 GND 4 – 2 NC 5 1 1 COM 6 2 – NO Applications Information Do not exceed the absolute maximum ratings because stresses beyond the listed ratings may cause permanent damage to the device. Proper power-supply sequencing is recommended for all CMOS devices. Always sequence V+ on first, followed by the logic inputs, NO/NC, or COM. 6 FUNCTION MAX4561 Ground Analog Switch Normally Closed Terminal Analog Switch Common Terminal Analog Switch Normally Open Terminal Operating Considerations for High-Voltage Supply The MAX4561/MAX4568/MAX4569 are capable of +12V single-supply operation with some precautions. The absolute maximum rating for V+ is +13V (referenced to GND). When operating near this region, bypass V+ with a 0.1µF min capacitor to ground as close to the device as possible. ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches •±15kV using the Human Body Model •±8kV using the Contact Discharge method specified in IEC 1000-4-2 (formerly IEC 801-2) •±15kV using the Air-Gap Discharge method specified in IEC 1000-4-2 (formerly IEC 801-2) ESD Test Conditions Contact Maxim Integrated Products for a reliability report that documents test setup, methodology, and results. Human Body Model Figure 6 shows the Human Body Model, and Figure 7 shows the waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which can be discharged into the test device through a 1.5kΩ resistor. IEC 1000-4-2 The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically refer to integrated circuits. The MAX4561 enables the design of equipment that meets Level 4 (the highest level) of IEC 1000-4-2, without additional ESD protection components. The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak current in IEC 1000-4-2. Because series resistance is lower in the IEC 1000-4-2 ESD test model (Figure 8), the ESD withstand voltage measured to this standard is generally lower than that measured using the Human Body Model. Figure 9 shows the current waveform for the ±8kV IEC 1000-4-2 Level 4 ESD Contact Discharge test. The Air-Gap test involves approaching the device with a charged probe. The Contact Discharge method connects the probe to the device before the probe is energized. Chip Information PROCESS: CMOS ESD protection can be tested in various ways. Inputs are characterized for protection to the following: Beyond-the-Rails is a trademark of Maxim Integrated Products. 7 MAX4561/MAX4568/MAX4569 ±15kV ESD Protection The MAX4561/MAX4568/MAX4569 are ±15kV ESD-protected at the NC/NO terminals in accordance with IEC1000-4-2. To accomplish this, bidirectional SCRs are included on-chip between these terminals. When the voltages at these terminals go Beyond-the-Rails™, the corresponding SCR turns on in a few nanoseconds and bypasses the surge safely to ground. This method is superior to using diode clamps to the supplies because unless the supplies are very carefully decoupled through low-ESR capacitors, the ESD current through the diode clamp could cause a significant spike in the supplies. This may damage or compromise the reliability of any other chip powered by those same supplies. There are diodes from NC/NO to the supplies in addition to the SCRs. A resistance in series with each of these diodes limits the current into the supplies during an ESD strike. The diodes protect these terminals from overvoltages that are not a result of ESD strikes. These diodes also protect the device from improper powersupply sequencing. Once the SCR turns on because of an ESD strike, it remains on until the current through it falls below its “holding current.” The holding current is typically 110mA in the positive direction (current flowing into the NC/NO terminal) at room temperature (see SCR Holding Current vs.Temperature in the Typical Operating Characteristics). Design the system so that any sources connected to NC/NO are current-limited to a value below the holding current to ensure the SCR turns off when the ESD event is finished and normal operation resumes. Also, remember that the holding current varies significantly with temperature. The worst case is at +85°C when the holding currents drop to 70mA. Since this is a typical number to guarantee turnoff of the SCRs under all conditions, the sources connected to these terminals should be current-limited to no more than half this value. When the SCR is latched, the voltage across it is approximately 3V. The supply voltages do not affect the holding current appreciably. The sources connected to the COM side of the switches need not be current limited since the switches turn off internally when the corresponding SCR(s) latch. Even though most of the ESD current flows to GND through the SCRs, a small portion of it goes into V+. Therefore, it is a good idea to bypass the V+ with 0.1µF capacitors directly to the ground plane. MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches Test Circuits/Timing Diagrams V+ MAX4561 MAX4568 MAX4569 SWITCH SWITCH OUTPUT V+ COM NO OR NC INPUT LOGIC INPUT 50% 0 VOUT RL t OFF CL IN VOUT GND LOGIC INPUT SWITCH OUTPUT ( 0.9 x V0UT 0.9 x VOUT 0 t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON VOUT = VCOM t r < 20ns t f < 20ns +3V LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 1. Switching Time V+ MAX4561 LOGIC INPUT V+ 50% 0 NC +3V +3V VOUT COM NO RL CL IN LOGIC INPUT SWITCH OUTPUT (VOUT) GND 0.9 x VOUT 0.9 x VOUT tBBM CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 2. Break-Before-Make Interval V+ MAX4561 MAX4568 MAX4569 V GEN ∆VOUT V+ RGEN NC OR NO VOUT COM VOUT +3V CL GND IN 0 IN +3V VIN = LOGIC INPUT 0 Q = (∆V OUT )(C L ) IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 3. Charge Injection 8 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches V+ 10nF MAX4561 MAX4568 MAX4569 V+ 10nF SIGNAL GENERATOR 0dBm V+ COM MAX4561 MAX4568 MAX4569 V+ COM IN IN CAPACITANCE METER 0 OR 3V NC OR NO f = 1MHz GND RL GND Figure 5. Off-Isolation/On-Channel Figure 4. Channel On/Off-Capacitance RC 1M CHARGE-CURRENT LIMIT RESISTOR HIGHVOLTAGE DC SOURCE NC OR NO ANALYZER Cs 100pF RD 1500Ω IP 100% 90% DISCHARGE RESISTANCE STORAGE CAPACITOR Ir DEVICE UNDER TEST 36.8% 10% 0 HIGHVOLTAGE DC SOURCE Cs 150pF RD 330Ω tDL CURRENT WAVEFORM I 100% 90% I PEAK DISCHARGE RESISTANCE STORAGE CAPACITOR TIME tRL Figure 7. Human Body Model Current Waveform Figure 6. Human Body ESD Test Model CHARGE-CURRENT LIMIT RESISTOR PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPERES 0 RC 50M to 100M 0 OR 3V DEVICE UNDER TEST 10% t r = 0.7ns to 1ns t 30ns 60ns Figure 8. IEC 1000-4-2 ESD Test Model Figure 9. IED 1000-4-2 ESD Generator Current Waveform 9 MAX4561/MAX4568/MAX4569 Test Circuits/Timing Diagrams (continued) MAX4561/MAX4568/MAX4569 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches Package Information For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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 CODE OUTLINE NO. LAND PATTERN NO. 5 SOT23 U5+2 21-0057 90-0174 6 SOT23 U6SN+1 21-0058 90-0175 PACKAGE TYPE 10 ±15kV ESD-Protected, Low-Voltage, SPDT/SPST, CMOS Analog Switches REVISION NUMBER REVISION DATE DESCRIPTION 0 4/00 Initial release 1 7/12 Added RoHS packaging option to data sheet PAGES CHANGED — 1, 2, 10 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. 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 Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ________________ 11 © 2012 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc. MAX4561/MAX4568/MAX4569 Revision History