19-2044; Rev 0; 5/01 Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN Features ♦ 3mm x 3mm 12-Pin QFN Package ♦ Guaranteed On-Resistance: 60Ω (max) (+2.7V supply) 25Ω (typ) (+5V supply) ♦ Guaranteed Match Between Channels: 3Ω (max) ♦ Guaranteed Flatness Over Signal Range: 10Ω (max) ♦ Guaranteed Low Leakage Currents: 100pA (max) at +25°C ♦ Switching Time: tON = 30ns, tOFF = 18ns 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: >300MHz ♦ Low Crosstalk: -82dB (1MHz) ♦ High Off-Isolation: -75dB (1MHz) ♦ Low 4pC Charge Injection ♦ THD: 0.03% ♦ +1.8V CMOS-Logic Compatible Ordering Information PART Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. TEMP. RANGE PIN-PACKAGE MAX4695EGC -40°C to 85°C 12 QFN MAX4695EUB -40°C to 85°C 10 µMAX Pin Configurations TOP VIEW IN1 12 IN1 1 11 10 10 COM1 NO1 2 GND 3 COM1 N.C. MAX4695 9 NC1 8 V+ NO2 4 7 IN2 5 6 µMAX MAX4695 IN_ NO_ NC_ 0 OFF ON 1 ON OFF NC2 COM2 SWITCHES SHOWN FOR LOGIC "0" INPUT NO1 1 GND 2 NO2 3 MAX4695 4 5 6 IN2 COM2 N.C. 9 NC1 8 V+ 7 NC2 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 MAX4695 General Description The MAX4695 is a low-voltage, dual single-pole/doublethrow (SPDT) analog switch that operates from a single +1.8V to +5.5V supply. The MAX4695 features breakbefore-make switching action with a tON = 30ns and tOFF = 18ns at +3V. When powered from a +2.7V supply, the device has a 60Ω (max) on-resistance (RON), with 3Ω (max) RON matching and 10Ω max RON flatness. The digital logic inputs are 1.8V-logic compatible from a +2.7V to +3.3V supply. The MAX4695 is available in both a space-saving 12-pin QFN (3mm x 3mm) package and a 10-pin µMAX package. MAX4695 Low-Voltage, 60Ω Dual SPDT Analog Switch 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_, NC_ .............................±20mA Peak Current COM_, NO_, NC_ (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 IN_, COM_, NO_, and NC_ 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, 9) PARAMETER SYMBOL CONDITION TA MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC__ 0 +25°C 40 RON V+ = +2.7V, ICOM_ = 1mA, VNO_ or VNC_ = +1.4V ∆RON V+ = +2.7V, ICOM_ = 1mA, VNO_ or VNC_ = +1.4V TMIN to TMAX On-Resistance Flatness (Note 4) RFLAT (ON) V+ = +2.7V, ICOM_ = 1mA, VNO_ or VNC_ = +1V, +1.4V, +1.8V TMIN to TMAX NO_, NC_ Off-Leakage Current (Note 5) INO_(OFF), INC_(OFF) V+ = +3.3V, VCOM_ = +0.3V, +3V VNO_ or VNC_ = +3V, +0.3V +25°C -0.1 TMIN to TMAX -1 COM_ On-Leakage Current (Note 5) ICOM _(ON) V+ = +3.3V, VCOM_ = +0.3V, +3V VNO_ or VNC_ = +0.3V, +3V, or floating +25°C -0.2 TMIN to TMAX -2 On-Resistance On-Resistance Match Between Channels (Note 3) TMIN to TMAX 60 70 +25°C 0.5 3 4 +25°C 6 10 15 ±0.01 0.1 1 ±0.01 0.2 2 Ω Ω Ω nA nA DYNAMIC tON VNO or VNC_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX Turn-Off Time tOFF VNO or VNC_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX Break-Before-Make Time (Note 6) tBBM VNO or VNC_ = +1.5V, RL = 300Ω, CL = 35pF, Figure 3 Q VGEN = 0, RGEN = 0, CL = 1.0nF, Figure 4 Charge Injection 2 +25°C Turn-On Time 24 +25°C 12 18 20 +25°C TMIN to TMAX 30 40 12 2 ns ns ns 4 pC On-Channel -3dB Bandwidth BW Signal = 0dBm, 50Ω in and out, Figure 5 300 MHz Off-Isolation (Note 7) VISO f = 1MHz, RL = 50Ω, CL = 5pF, Figure 5 -75 dB _______________________________________________________________________________________ Low-Voltage, 60Ω Dual SPDT Analog Switch 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, 9) PARAMETER Crosstalk (Note 8) SYMBOL VCT Total Harmonic Distortion THD CONDITION TA MIN TYP f = 1MHz, RL = 50Ω, CL = 5pF, Figure 5 -82 f = 20Hz to 20kHz, 2Vp-p, RL = 600Ω MAX UNITS dB 0.03 % NO_, NC_ Off-Capacitance CNO_(OFF), CNC_(OFF) f = 1MHz, VNO_ or VNC_ = GND, Figure 6 7 pF COM_ On-Capacitance CCOM_(ON) f = 1MHz, VNO_ or VNC_ = GND, Figure 6 19 pF DIGITAL I/O Input Logic High VIH Input Logic Low VIL Input Leakage Current IIH, IIL 1.4 VIN_ = 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, VIN_ = 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, 9) PARAMETER SYMBOL CONDITION TA MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC_ 0 +25°C 25 RON V+ = +4.5V, ICOM_ = 1mA, VNO_ or VNC_ = +3.5V TMIN to TMAX ∆RON V+ = +4.5V, ICOM_ = 1mA, VNO_ or VNC_ = +3.5V TMIN to TMAX On-Resistance Flatness (Note 4) RFLAT (ON) V+ = +4.5V, ICOM_ = 1mA, VNO_ or VNC_ = +1V, +2.5V, +3.5V TMIN to TMAX NO_, NC_ Off-Leakage Current (Note 5) INO_(OFF), INC_(OFF) V+ = +5.5V, VCOM_ = +1V, +4.5V VNO_ or VNC_ = +4.5V, +1V +25°C -0.1 TMIN to TMAX -1 COM_ On-Leakage Current (Note 5) ICOM _(ON) V+ = +5.5V, VCOM_ = +1V, +4.5V VNO_ or VNC_ = +1V, +4.5V, or floating +25°C -0.2 TMIN to TMAX -2 On-Resistance On-Resistance Match Between Channels (Note 3) 35 40 +25°C 0.5 2 3 +25°C 4 8 10 ±0.01 0.1 1 ±0.01 0.2 2 Ω Ω Ω nA nA DYNAMIC +25°C Turn-On Time tON VNO_, VNC_ = +3V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX Turn-Off Time tOFF VNO_, VNC_ = +3V, RL = 300Ω, CL = 35pF, Figure 2 TMIN to TMAX +25°C 17 25 30 8 15 20 ns ns _______________________________________________________________________________________ 3 MAX4695 ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) MAX4695 Low-Voltage, 60Ω Dual SPDT Analog Switch in QFNSwitch 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, 9) PARAMETER Break-Before-Make Time (Note 6) Charge Injection SYMBOL tBBM Q CONDITION VNO_, VNC_ = +3V, RL = 300Ω, CL = 35pF, Figure 3 TA MIN +25°C TMIN to TMAX TYP MAX 9 ns 2 VGEN = 0, RGEN = 0, CL = 1.0nF, Figure 4 UNITS 8 pC On-Channel -3dB Bandwidth BW Signal = 0dBm, 50Ω in and out, Figure 5 300 MHz Off-Isolation (Note 7) VISO f = 1MHz, RL = 50Ω, CL = 5pF, Figure 5 -75 dB Crosstalk (Note 8) VCT f = 1MHz, RL = 50Ω, CL = 5pF, Figure 5 -82 Total Harmonic Distortion THD f = 20Hz to 20kHz, 2Vp-p, RL = 600Ω 0.02 dB % DIGITAL I/O Input Logic High Input Logic Low Input Leakage Current VIH 2.0 VIL IIH, IIL VIN_ = 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, VIN = 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: ∆RON = RON(MAX) - RON(MIN). Note 4: 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: Leakage currents are 100% tested at TA = +85°C. Limits across the full temperature range are guaranteed by correlation. Note 6: Guaranteed by design. Note 7: Off-Isolation = 20log10 (VCOM_ / VNO_), VCOM_ = output, VNO_ = input to off switch. Note 8: Between any two switches. Note 9: -40°C specifications are guaranteed by design. 4 _______________________________________________________________________________________ Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN ON-RESISTANCE vs. VCOM TA = +85°C 40 35 V+ = +2.5V 60 V+ = +3V TA = -40°C 30 TA = +25°C 10 3 0 4 0 0 5 0.5 1.0 1.5 2.0 0.5 1.0 25 20 TA = +25°C 10,000 1000 SUPPLY CURRENT (pA) TA = +85°C 2.0 2.5 3.0 SUPPLY CURRENT vs. TEMPERATURE MAX4695 toc04 V+ = +5V 35 1.5 VCOM (V) ON-RESISTANCE vs. VCOM 40 15 0 VCOM (V) VCOM (V) 30 2.5 TA = -40°C 10 MAX4695 toc05 2 TA = -40°C 100 V+ = +5V 10 V+ = +3V 1 0.1 5 0 0 0.01 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -40 -15 10 35 60 VCOM (V) TEMPERATURE (°C) SUPPLY CURRENT vs. LOGIC INPUT VOLTAGE ON-LEAKAGE CURRENT vs. TEMPERATURE 1000 MAX4695 toc06 10,000 1000 100 85 MAX4695 toc07 1 RON (Ω) 100 10 ON-LEAKAGE (pA) 0 TA = +25°C 5 V+ = +5.5V 0 25 15 10 20 30 20 20 V+ = +5V 40 RON (Ω) RON (Ω) 80 V+ = +3V TA = +85°C 45 40 SUPPLY CURRENT (µA) RON (Ω) V+ = +2.5V 50 100 ON-RESISTANCE vs. VCOM 50 MAX4695 toc03 MAX4695 toc01 V+ = +1.8V 120 60 MAX4695 toc02 ON-RESISTANCE vs. VCOM 140 V+ = +5V 1 0.1 V+ = +3V 0.01 V+ = +5V 10 V+ = +3V 0.001 1 0.0001 0.00001 0.000001 0.1 0 1 2 3 LOGIC LEVEL (V) 4 5 -40 -15 10 35 60 85 TEMPERATURE (°C) _______________________________________________________________________________________ 5 MAX4695 Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) LOGIC THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE V+ = +5V 10 V+ = +3V 1 MAX4695 toc09 50 VIN_ RISING 45 40 35 1.0 tON/OFF (ns) 100 1.5 LOGIC THRESHOLD VOLTAGE (V) MAX4695 toc08 1000 TURN-ON/OFF TIME vs. SUPPLY VOLTAGE MAX4695 toc10 OFF-LEAKAGE CURRENT vs. TEMPERATURE OFF-LEAKAGE (pA) VIN_ FALLING 0.5 30 tON 25 20 15 10 tOFF 5 0 0.1 -40 -15 10 35 60 0 1.5 85 2.0 2.5 3.0 3.5 4.0 5.0 4.5 5.5 2 3 4 SUPPLY VOLTAGE (V) TURN-ON/OFF TIME vs. TEMPERATURE CHARGE INJECTION vs. VCOM tON, V+ = +3V MAX4695 toc12 16 MAX4695 toc11 30 25 1 SUPPLY VOLTAGE (V) TEMPERATURE (°C) 12 V+ = +5V tOFF, V+ = +3V 8 Q (pC) tON/OFF (ns) 20 15 4 V+ = +3V 10 tON, V+ = +5V 0 tOFF, V+ = +5V 5 -4 0 0 -40 -15 10 35 60 1 85 2 3 4 5 VCOM (V) TEMPERATURE (°C) 0.1 MAX4695 toc13 0 ON-RESPONSE -20 MAX4695 toc14 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY FREQUENCY RESPONSE RL = 600Ω THD + N (%) -40 LOSS (dB) MAX4695 Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN OFF-ISOLATION -60 CROSSTALK V+ = +3V -80 -100 V+ = +5V -120 0.01 0.1 1 10 FREQUENCY (MHz) 6 100 1000 10 100 1k 10k 100k FREQUENCY (Hz) _______________________________________________________________________________________ 5 6 Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN PIN NAME FUNCTION µMAX QFN 1 12 2 1 NO1 Analog Switch 1—Normally Open Terminal 3 2 GND Ground 4 3 NO2 Analog Switch 2—Normally Open Terminal 5 4 IN2 Digital Control Input Switch 2 6 5 COM2 — 6, 10 N.C. 7 7 NC2 8 8 V+ 9 9 NC1 10 11 COM1 IN1 Digital Control Input Switch 1 Analog Switch 2—Common Terminal No Connection. Not internally connected. Analog Switch 2—Normally Closed Terminal Positive Supply Voltage Input Analog Switch 1—Normally Closed Terminal Analog Common Switch 1 Detailed Description The MAX4695 is a low-voltage, dual single-pole/double-throw (SPDT) analog switch that 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 10Ω (max) RON flatness. The digital logic inputs are 1.8Vlogic compatible from a +2.7V to +3.3V supply. Applications Information Digital Control Inputs The MAX4695 logic inputs are 1.8V CMOS logic compatible for 3V operation and TTL compatible for 5V operation of V+. Driving IN_ rail-to-rail minimizes power consumption. a small signal diode (D1) as shown in Figure 1. If the 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 POSITIVE SUPPLY 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_, NC_, and COM_ pins can be either inputs or outputs. D1 V+ MAX4695 Power-Supply Sequencing and Overvoltage Protection Caution: Do not exceed the absolute maximum ratings because stresses beyond the listed ratings 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 NO COM Vg GND D2 Figure 1. Overvoltage Protection Using Two External Blocking Diodes _______________________________________________________________________________________ 7 MAX4695 Pin Description MAX4695 Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN Test Circuits/Timing Diagrams V+ MAX4695 NO_ VN_ OR NC_ VIN_ LOGIC INPUT V+ COM_ 50% CL 35pF t OFF IN_ VOUT GND SWITCH OUTPUT 0.9 × V0UT 0.9 × VOUT 0 t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VN_ RL + RON ( 50% VINL VOUT RL 300Ω LOGIC INPUT t r < 5ns t f < 5ns VINH LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 2. Switching Time V+ MAX4695 LOGIC INPUT V+ VN_ NC_ 50% VINL VOUT COM_ VINH NO_ RL 300Ω VIN_ IN_ LOGIC INPUT CL 35pF 0.9 × V0UT GND 0.9 × VOUT VOUT tD CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 3. Break-Before-Make Interval V+ ∆VOUT MAX4695 V+ RGEN V GEN NC_ OR NO_ VOUT COM_ CL 1nF GND VOUT IN OFF ON OFF IN VINL TO VINH IN OFF ON OFF Q = (∆V OUT )(C L ) IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 4. Charge Injection 8 _______________________________________________________________________________________ Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN +5V 10nF V OFF-ISOLATION = 20log OUT VIN NETWORK ANALYZER 0 OR V+ V+ IN_ NC_ MAX4695 VOUT NO_ 50Ω 50Ω VIN COM_ GND 50Ω MEAS ON-LOSS = 20log REF 50Ω VOUT VIN V CROSSTALK = 20log OUT VIN 50Ω MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_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-Channel Bandwidth, Crosstalk 10nF Chip Information V+ TRANSISTOR COUNT: 130 V+ COM_ MAX4695 IN_ CAPACITANCE METER f = 1MHz NC_ or NO_ VINL OR VINH GND Figure 6. Channel Off/On Capacitance _______________________________________________________________________________________ 9 MAX4695 Test Circuits/Timing Diagrams (continued) Low-Voltage, 60Ω Dual SPDT Analog Switch in QFN 32L QFN, 3x3x0.85.EPS MAX4695 Package Information 10 ______________________________________________________________________________________ Low-Voltage, 60Ω Dual SPDT Analog Switch 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. MAX4695 Package Information (continued)