19-1761; Rev 0; 7/00 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches The MAX4620 has four NO switches, the MAX4630 has four NC switches, and the MAX4640 has two NO and two NC switches. These devices are available in 14-pin TSSOP, SO, and DIP packages. ________________________Applications Battery-Powered Systems ____________________________Features ♦ ESD-Protected NO/NC Pins ±15kV Human Body Model ±15kV IEC 1000-4-2 Air-Gap Discharge ±8kV IEC 1000-4-2 Contact Discharge ♦ Pin Compatible with Industry-Standard 74HC4066, MAX4066, MAX4610/MAX4611/MAX4612 ♦ Guaranteed On-Resistance 70Ω (max) at 5V 120Ω (max) at 3V ♦ On-Resistance Flatness 2Ω (typ) at 5V 6Ω (typ) at 3V ♦ On-Resistance Matching 0.5Ω (typ) at 5V 0.6Ω (typ) at 3V ♦ Guaranteed 0.5nA Leakage Current at TA = +25°C ♦ +2V to +12V Single-Supply Voltage ♦ TTL/CMOS-Logic Compatible ♦ Low Distortion: 0.015% ♦ -3dB Bandwidth: >300MHz ♦ Rail-to-Rail Signal Range Pin Configurations/Functional Diagrams/Truth Tables Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Sample-and-Hold Circuits TOP VIEW Communications Circuits MAX4620 Relay Replacement Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX4620EUD -40°C to +85°C 14 TSSOP MAX4620ESD -40°C to +85°C 14 SO MAX4620EPD -40°C to +85°C 14 DIP MAX4630EUD -40°C to +85°C 14 TSSOP MAX4630ESD -40°C to +85°C 14 SO MAX4630EPD -40°C to +85°C 14 DIP Ordering Information continued at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. NO1 1 14 V+ COM1 2 13 IN1 NO2 3 12 IN4 COM2 4 11 NO4 IN2 5 10 COM4 IN3 6 9 COM3 8 NO3 GND 7 TSSOP/SO/DIP INPUT LOW SWITCH STATE OFF HIGH ON Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX4620/MAX4630/MAX4640 General Description The MAX4620/MAX4630/MAX4640 low-voltage, highESD-protected, quad, single-pole/single-throw (SPST) analog switches are pin-compatible replacements for the industry-standard 74HC4066 analog switch. The normally open (NO) and normally closed (NC) pins are protected against ±15kV electrostatic discharge (ESD) without latchup or damage. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is 0.5nA at +25°C. These analog switches are suitable for low-distortion audio applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They have low power requirements (0.5µW), require less board space, and are more reliable than mechanical relays. Each device is controlled by TTL/CMOS input voltage levels and is bilateral. These switches feature guaranteed operation from a +2V to +12V single supply, making them ideal for use in battery-powered applications. The on-resistance is 70Ω max, matched between switches to 0.5Ω (typ), and flat (2Ω typ) over the specified signal range. MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +13V IN_, COM_, NO_, NC_ to GND (Note 1).......-0.3V to (V+ + 0.3V) Continuous Current (NO_, NC_, COM_)...........................±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) 14-Pin TSSOP (derate 6.3mW/°C above +70°C) .........571mW 14-Pin DIP (derate 10mW/°C above +70°C) ................800mW 14-Pin SO (derate 8mW/°C above +70°C)...................640mW Operating Temperature Ranges MAX46_ _E_....................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Maximum Die Temperature..............................................+150°C Lead Temperature (soldering, 10s) .................................+300°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 V+ = +5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range On-Resistance On-Resistance Match Between Channels (Note 3) On-Resistance Flatness (Note 4) Off-Leakage Current (NO_ or NC_) (Note 5) 2 VCOM_, VNO_, VNC_ RON ∆RON RFLAT(ON) INO_, INC_ 0 V+ = 4.5V, ICOM_ = 1mA, VNO_ or VNC_ = 3.5V V+ = 4.5V, ICOM_ = 1mA, VNO_ or VNC_ = 3.5V V+ = 4.5V; ICOM_ = 1mA; VNO_ or VNC_ = 1V, 2.25V, 3.5V V+ = 5.5V; VCOM_ = 1V, 4.5V; VNO_ or VNC_ = 4.5V, 1V TA = +25°C 45 70 Ω TA = TMIN to TMAX 75 TA = +25°C 0.5 2 Ω TA = TMIN to TMAX 3 TA = +25°C 2 4 Ω TA = TMIN to TMAX TA = +25°C 5 -0.5 0.01 0.5 nA TA = TMIN to TMAX -5 _______________________________________________________________________________________ 5 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches MAX4620/MAX4630/MAX4640 ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY (continued) (V+ = +4.5V to +5.5V, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at V+ = +5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX -0.5 0.01 0.5 UNITS ANALOG SWITCH COM_ Off-Leakage Current (Note 5) COM_ On-Leakage Current (Note 5) ICOM_(OFF) ICOM_(ON) V+ = 5.5V; VCOM_ = 1V, 4.5V; VNO_ or VNC_ = 4.5V, 1V TA = +25°C TA = TMIN to TMAX -5 V+ = 5.5V; VCOM_ = 1V, 4.5V; VNO_ or VNC_ = 1V, 4.5V, or floating TA = +25°C -1 nA 5 0.02 1 nA TA = TMIN to TMAX -10 10 LOGIC INPUT IN_ Input High VIH IN_ Input Low VIL Logic Input Leakage Current IIN 2.4 VIN = 0 or V+ V -1 0.8 V 1 µA SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON Turn-Off Time tOFF Break-Before-Make (MAX4640 only) On-Channel Bandwidth -3dB Charge Injection BW Q NO_ or NC_ On-Capacitance COFF VCOM_ = 3V, RL = 300Ω, CL = 35pF, Figure 1 TA = +25°C VCOM_ = 3V, CL = 35pF, RL = 300Ω, Figure 1 TA = +25°C VCOM_ = 3V, RL = 300Ω, CL = 35pF TA = +25°C 5 TA = TMIN to TMAX 4 90 150 ns TA = TMIN to TMAX 180 50 80 ns TA = TMIN to TMAX 100 45 ns Signal = 0dBm, RIN = ROUT = 50Ω, CL = 5pF, Figure 2 300 MHz VGEN = 2V, CL = 1.0nF, RGEN = 0, Figure 4 5 pC VNO_ = VNC_ = GND, f = 1MHz, Figure 3 20 pF COM_ Off-Capacitance CCOM_(OFF) VCOM_ = GND, f = 1MHz, Figure 3 12 pF COM_ On-Capacitance CCOM_(ON) VCOM_ = VNO_, VNC_ = GND, f = 1MHz, Figure 3 20 pF RL = 50Ω, CL = 5pF, f = 1MHz, Figure 2 -75 RL = 50Ω, CL = 5pF, f = 10MHz, Figure 2 -45 Off-Isolation (Note 6) VISO dB _______________________________________________________________________________________ 3 MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY (continued) (V+ = +4.5V to +5.5V, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at V+ = +5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL Crosstalk (Note 7) VCT Total Harmonic Distortion THD CONDITIONS MIN TYP RL = 50Ω, CL = 5pF, f = 1MHz, Figure 5 -90 RL = 50Ω, CL = 5pF, f = 10MHz, Figure 5 -70 RL = 600Ω, f = 20Hz to 20kHz MAX UNITS dB 0.015 % ESD Silicon-Controlled Rectifier (SCR) Holding Current IH 110 mA ESD SCR Holding Voltage VH 3 V POWER SUPPLY Power-Supply Range Positive Supply Current V+ I+ 2 V+ = 5.5V, VIN = 0 or V+ 12 TA = +25°C 1 TA = TMIN to TMAX 10 V µA 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.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range On-Resistance On-Resistance Match Between Channels (Notes 3, 8) On-Resistance Flatness (Notes 4, 8) VCOM_, VNO_, VNC_ RON ∆RON RFLAT(ON) 0 V+ = 2.7V, ICOM_ = 1mA, VNO_ or VNC_ = 1.5V V+ = 2.7V, ICOM_ = 1mA, VNO_ or VNC_ = 1.5V V+ = 2.7; ICOM_ = 1mA; VNO_ or VNC_ = 0.5V, 1.5V, 2.2V TA = +25°C 70 120 Ω TA = TMIN to TMAX 150 TA = +25°C 0.6 3 Ω TA = TMIN to TMAX 4 TA = +25°C 6 12 Ω TA = TMIN to TMAX 15 LOGIC INPUT IN_ Input High VIH IN_ Input Low VIL Logic Input Leakage Current IIN 4 2.0 VIN = 0 or V+ -1 _______________________________________________________________________________________ V 0.6 V 1 µA ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches PARAMETER SYMBOL CONDITIONS MIN TYP MAX 150 250 UNITS SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON Turn-Off Time tOFF Break-Before-Make (MAX4640 only) VCOM_ = 1.5V, RL = 300Ω, CL = 35pF, Figure 1 TA = +25°C VCOM_ = 1.5V, RL = 300Ω, CL = 35pF, Figure 1 TA = +25°C VCOM_ = 1.5V, RL = 300Ω, CL = 35pF TA = +25°C 5 TA = TMIN to TMAX 4 ns TA = TMIN to TMAX 300 60 100 ns TA = TMIN to TMAX 150 ns Charge Injection Q 5 pC ESD SCR Holding Current IH VGEN = 1.5V, CL = 1.0nF, RGEN = 0, Figure 4 110 mA ESD SCR Holding Voltage VH 3 V POWER SUPPLY Power-Supply Range Positive Supply Current V+ I+ 2 V+ = 3.6V, VIN = 0 or V+ 12 TA = +25°C 1 TA = TMIN to TMAX 10 V µA 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: ∆RON = RON(MAX) - RON(MIN). Note 4: Flatness is defined as the difference between the maximum and the minimum values of on-resistance as measured over the specified analog signal ranges. Note 5: Leakage parameters are 100% tested at TA(max), and guaranteed by correlation at +25°C. Note 6: Off-Isolation = 20log10(VCOM / VNO), VCOM = output, VNO = input to off switch. Note 7: Between any two switches. Note 8: Guaranteed by design. _______________________________________________________________________________________ 5 MAX4620/MAX4630/MAX4640 ELECTRICAL CHARACTERISTICS—SINGLE +3V SUPPLY (continued) (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.) (Note Typical Operating Characteristics (V+ = +5V, TA = +25°C, unless otherwise specified.) V+ = 3.3V V+ = 5V 80 30 TA = +85°C TA = +25°C TA = -40°C 20 60 MAX4620/30/40-03 1000 LEAKAGE CURRENT (pA) 40 RON (Ω) RON (Ω) 50 V+ = 2.5V 100 MAX4620/30/40-02 V+ = 1.8V 140 120 60 MAX4620/30/40-01 180 160 ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE ON-RESISTANCE vs. VCOM AND TEMPERATURE ON-RESISTANCE vs. VCOM AND SUPPLY VOLTAGE 100 ON OFF 10 40 10 20 0 0 -40 -15 10 35 60 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VCOM (V) VCOM (V) TEMPERATURE (°C) SUPPLY CURRENT vs. SUPPLY VOLTAGE AND TEMPERATURE TURN-ON/TURN-OFF TIME vs. TEMPERATURE TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE tON 80 140 120 100 70 6 4 60 50 tON/tOFF (ns) tON/tOFF (ns) 8 85 MAX4620/30/40-06 V+ = 5V VCOM = 3V 90 MAX4620/30/40-05 100 MAX4620/30/40-04 V+ = 5V 10 tOFF 40 30 tON 80 60 tOFF 40 20 2 20 10 0 -15 10 35 60 0 -40 85 -15 10 35 60 TEMPERATURE (°C) TEMPERATURE (°C) TURN-ON/TURN-OFF TIME vs. VCOM (V+ = +3V) TURN-ON/TURN-OFF TIME vs. VCOM (V+ = +5V) 120 tON 80 tON 70 100 tON/tOFF (ns) 60 80 tOFF 60 50 0 3 6 9 SUPPLY VOLTAGE (V) 12 CHARGE INJECTION vs. VCOM 90 MAX4620/30/40-07 140 85 MAX4620/30/40-08 -40 tOFF 40 30 40 20 15 CHARGE INJECTION (pC) 0 MAX4620/30/40-09 SUPPLY CURRENT (nA) 1 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 12 tON/tOFF (ns) MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches 10 V+ = 3V 5 0 20 20 V+ = 5V -10 0 0 0 0.5 1.0 1.5 VCOM (V) 6 -5 10 2.0 2.5 3.0 1.0 1.5 2.0 2.5 3.0 VCOM (V) 3.5 4.0 4.5 5.0 0 1 2 VCOM (V) _______________________________________________________________________________________ 3 4 5 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY FREQUENCY RESPONSE -20 0.014 0.012 THD + N (%) ON-LOSS -40 OFF -60 -80 MAX4620/30/40-11 0 LOSS (dB) 0.016 MAX4620/30/40-10 20 0.010 0.008 0.006 0.004 CROSSTALK -100 0.002 -120 V+ = 5V 600Ω IN AND OUT 0 0.01 0.1 1 10 100 1000 10 100 FREQUENCY (MHz) 1k 10k 100k FREQUENCY (Hz) Pin Description PIN NAME MAX4620 MAX4630 MAX4640 1 — 1 — 1 2 2 3 FUNCTION NO1 Analog Switch 1 – Normally Open — NC1 Analog Switch 1 – Normally Closed 2 COM1 — 3 NO2 Analog Switch 2 – Normally Open — 3 — NC2 Analog Switch 2 – Normally Closed 4 4 4 COM2 5 5 5 IN2 Digital Control Input 2 6 6 6 IN3 Digital Control Input 3 Analog Switch 1 – Common Analog Switch 2 – Common 7 7 7 GND Ground 8 — — NO3 Analog Switch 3 – Normally Open — 8 8 NC3 Analog Switch 3 – Normally Closed 9 9 9 COM3 Analog Switch 3 – Common 10 10 10 COM4 Analog Switch 4 – Common 11 — — NO4 Analog Switch 4 – Normally Open — 11 11 NC4 Analog Switch 4 – Normally Closed 12 12 12 IN4 Digital Control Input 4 13 13 13 IN1 Digital Control Input 1 14 14 14 V+ Positive Supply Voltage Input _______________________________________________________________________________________ 7 MAX4620/MAX4630/MAX4640 Typical Operating Characteristics (continued) (V+ = +5V, TA = +25°C, unless otherwise specified.) MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches MAX4620 MAX4630 MAX4640 SWITCH INPUT V+ V COM SWITCH OUTPUT V+ NO_/NC_ COM_ VOUT RL 300Ω IN LOGIC INPUT 50% 0 CL 35pF t OFF GND LOGIC INPUT t R < 20ns t F < 20ns V+ VOUT SWITCH OUTPUT 0 0.9 x V0UT 0.9 x VOUT t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON VOUT = VCOM ( ) Figure 1. Switching Time 10nF SIGNAL GENERATOR 0dBm V+ MAX4620 MAX4630 MAX4640 ANALYZER NO_/NC_ GND RL Figure 2. Off-Isolation/On-Channel Bandwidth MAX4620 MAX4630 MAX4640 V+ V+ COM_ V+ COM_ IN 8 10nF VIL OR VIH IN CAPACITANCE METER NO_/NC_ f = 1MHz GND Figure 3. Channel Off/On-Capacitance _______________________________________________________________________________________ VIL OR VIH ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches V+ ∆VOUT V+ VOUT RGEN COM_ NO_/NC_ VOUT CL V GEN GND IN IN OFF ON OFF Q = (∆V OUT )(C L ) VIN Figure 4. Charge Injection Detailed Description 10nF SIGNAL GENERATOR 0dBm 0 OR 2.4V ANALYZER V+ V+ COM1 NO1 IN1 IN2 NO2 COM2 GND RL Figure 5. Crosstalk MAX4620 MAX4630 MAX4640 50Ω 0 OR 2.4V NC The MAX4620/MAX4630/MAX4640 are quad SPST CMOS analog switches with circuitry providing ±15kV ESD protection on the NO and NC pins. The CMOS switch construction provides rail-to-rail signal handling while consuming virtually no power. Each of the four switches is independently controlled by a TTL/CMOSlevel-compatible digital input. 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. Operating Considerations for High-Voltage Supply The MAX4620/MAX4630/MAX4640 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 minimum 0.1µF capacitor to ground as close to the IC as possible. _______________________________________________________________________________________ 9 MAX4620/MAX4630/MAX4640 MAX4620 MAX4630 MAX4640 MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches ±15kV ESD Protection The MAX4620/MAX4630/MAX4640 are ±15kV ESD-protected at the NC/NO terminals. To accomplish this, bidirectional SCRs are included on-chip between these terminals. When the voltages at these terminals go Beyond-the-RailsTM, 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. There is a resistance in series with each of these diodes to limit 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 power-supply sequencing. Once the SCR turns on because of an ESD strike, it continues to be 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 Supply 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 is resumed. Also, keep in mind 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 turn-off of the SCRs under all conditions, the sources connected to these terminals should be current limited to not more than half this value. When the SCR is latched, the voltage across it is approximately 3V, depending on the polarity of the pin current. The supply voltages do not appreciably affect the holding current. The sources connected to the COM side of the switches do not need to be current limited since the switches turn off internally when the corresponding SCR(s) latches. 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. ESD protection can be tested in various ways. Transmitter outputs and receiver inputs are characterized for protection to the following: • ±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 ICs. The MAX4620/MAX4630/MAX4640 enable 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 TRANSISTOR COUNT: 156 PROCESS: CMOS Beyond-the-Rails is a trademark of Maxim Integrated Products. 10 ______________________________________________________________________________________ ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches CHARGE-CURRENT LIMIT RESISTOR MAX4620/MAX4630/MAX4640 RC 1MΩ RD 1500Ω IP 100% 90% DISCHARGE RESISTANCE Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPERES HIGHVOLTAGE DC SOURCE Cs 100pF STORAGE CAPACITOR DEVICE UNDER TEST 36.8% 10% 0 0 HIGHVOLTAGE DC SOURCE Cs 150pF RD 330Ω I 100% 90% DISCHARGE RESISTANCE STORAGE CAPACITOR I PEAK CHARGE-CURRENT LIMIT RESISTOR tDL CURRENT WAVEFORM Figure 7. Human Body Model Current Waveform Figure 6. Human Body ESD Test Model RC 50MΩ to 100MΩ TIME tRL DEVICE UNDER TEST 10% t r = 0.7ns to 1ns t 30ns 60ns Figure 8. IEC 1000-4-2 ESD Test Model Figure 9. IEC 1000-4-2 ESD Generator Current Waveform ______________________________________________________________________________________ 11 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches MAX4620/MAX4630/MAX4640 Pin Configurations/Functional Diagrams/Truth Tables (continued) TOP VIEW MAX4640 MAX4630 NC1 1 14 V+ NO1 1 14 V+ COM1 2 13 IN1 COM1 2 13 IN1 NC2 3 12 IN4 NO2 3 12 IN4 COM2 4 11 NC4 COM2 4 11 NC4 IN2 5 10 COM4 IN2 5 10 COM4 IN3 6 9 COM3 IN3 6 9 COM3 8 NC3 GND 7 8 NC3 GND 7 TSSOP/SO/DIP TSSOP/SO/DIP INPUT SWITCH STATE INPUT NO1, NO2 NC3, NC4 LOW HIGH ON OFF LOW HIGH OFF ON ON OFF Ordering Information (continued) PART 12 TEMP. RANGE PIN-PACKAGE MAX4640EUD -40°C to +85°C 14 TSSOP MAX4640ESD -40°C to +85°C 14 SO MAX4640EPD -40°C to +85°C 14 DIP ______________________________________________________________________________________ ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches TSSOP.EPS ______________________________________________________________________________________ 13 MAX4620/MAX4630/MAX4640 Package Information ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches SOICN.EPS MAX4620/MAX4630/MAX4640 Package Information (continued) 14 ______________________________________________________________________________________ ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches PDIPN.EPS ______________________________________________________________________________________ 15 MAX4620/MAX4630/MAX4640 Package Information (continued) MAX4620/MAX4630/MAX4640 ±15kV ESD-Protected, Low-Voltage, Quad, SPST, CMOS Analog Switches NOTES 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.