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| 19-1663; Rev 0; 5/00 Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches General Description The MAX4594-MAX4597 single-pole/single-throw (SPST) analog switches operate from a single +2.0V to +5.5V supply. The MAX4594/MAX4596 switches are normally open (NO), and the MAX4595/MAX4597 are normally closed (NC). The MAX4596/MAX4597 pinouts are optimized for the highest SC70 package off-isolation available. These switches have 10 max on-resistance (RON), with 1.5 max R ON flatness over the analog signal range when powered from a +5V supply. The MAX4594-MAX4597 offer low 0.5nA leakage currents and fast switching times less than 40ns. They are packaged in an ultra-small 5-pin SC70. ____________________________Features o Available in SC70-5 Package o 10 max On-Resistance o 1.5 max On-Resistance Flatness o Fast Switching tON = 35ns max tOFF = 40ns max o Guaranteed 5pC max Charge Injection o +2.0V to +5.5V Single-Supply Operation o 300MHz -3dB Bandwidth at +25C o TTL/CMOS-Logic Compatible o -80dB Off-Isolation at 1MHz o 0.5nA max Off-Leakage o 0.05% THD MAX4594-MAX4597 ________________________Applications Cellular Phones PART Ordering Information TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 5 SC70-5 5 SC70-5 5 SC70-5 5 SC70-5 TOP MARK AAH AAI AAJ AAK Battery-Operated Equipment Audio and Video Signal Routing Communications Circuits PCMCIA Cards DSL Modems MAX4594EXK-T MAX4595EXK-T MAX4596EXK-T MAX4597EXK-T Pin Configurations/Functional Diagrams/Truth Table TOP VIEW COM 1 5 V+ COM 1 5 V+ IN 1 5 V+ IN 1 5 V+ NO 2 NC 2 COM 2 COM 2 GND 3 MAX4594 4 IN GND 3 MAX4595 4 IN GND 3 MAX4596 4 NO GND 3 MAX4597 4 NC INPUT LOW HIGH SWITCH STATE MAX4595/MAX4597 MAX4594/MAX4596 ON OFF OFF ON SWITCHES SHOWN FOR LOGIC "O" INPUT. ________________________________________________________________ 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. Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) V+ .............................................................................-0.3V to +6V Voltage into Any Terminal (Note 1)...............-0.3V to (V+ + 0.3V) Continuous Current into Any Terminal..............................20mA Peak Current, NO, NC, or COM (pulsed at 1ms, 10% duty cycle).................................40mA Continuous Power Dissipation (TA = +70C) 5-Pin SC70 (derate 3.1mW/C above +70C).............247mW Operating Temperature Range MAX459_EXK .................................................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Note 1: Voltages exceeding V+ or GND on any signal terminal 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-- +5V Supply (V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5V, TA = +25C.) (Notes 2, 3) PARAMETER ANALOG SWITCH Analog Signal Range VCOM, VNO, VNC RON V+ = 4.5V, VNO, or VNC = 3.5V; ICOM = 10mA VNO or VNC = 1.5V, 2.5V, 3.5V; V+ = 4.5V; ICOM = 10mA V+ = 5.5V; VCOM = 1V, 4.5V; VNO or VNC = 4.5V, 1V V+ = 5.5V; VCOM = 1V, 4.5V; VNO or VNC = 4.5V, 1V V+ = 5.5V; VCOM = 1V; 4.5V; VNO or VNC = 1V, 4.5V, or floating TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX -0.5 -5 -0.5 -5 -1 -10 2.4 0.8 VIN = V+, 0 VNO or VNC = 3V, RL = 300, CL = 35pF, Figure 3 VNO or VNC = 3V, RL = 300, CL = 35pF, Figure 3 Signal = 0dBm, 50 in and out, Figure 4 TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C 300 25 -1 0.03 20 1 35 ns 45 40 ns 50 MHz 0.01 0.01 0.01 0.5 0 6.5 V+ 10 12 1.5 2 0.5 nA 5 0.5 nA 5 1 nA 10 V V A V SYMBOL CONDITIONS MIN TYP MAX UNITS On-Resistance On-Resistance Flatness (Note 4) NO or NC Off-Leakage Current RFLAT(ON) INO(OFF) INC(OFF) ICOM(OFF) COM Off-Leakage Current COM On-Leakage Current DIGITAL I/O Input Logic High Input Logic Low Input Logic Current DYNAMIC Turn-On Time ICOM(ON) VIH VIL IIH, IIL tON Turn-Off Time On-Channel -3dB Bandwidth 2 tOFF BW _______________________________________________________________________________________ Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches ELECTRICAL CHARACTERISTICS-- +5V Supply (continued) (V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5V, TA = +25C.) (Notes 2, 3) PARAMETER Charge Injection (Note 5) Off-Isolation (Note 6) SYMBOL Q CONDITIONS VNO or VNC = 0, CL = 1nF, Figure 2 VNO or VNC = 1VRMS, RL = 50, CL = 5pF, f = 1MHz, Figure 4 VNO or VNC = 0, f = 1MHz, Figure 5 VCOM = 0, f = 1MHz, Figure 5 VCOM = 0, f = 1MHz, Figure 5 V = 5Vp-p, RL = 600, f = 20Hz to 20kHz TA = +25C MAX4594/ MAX4595 MAX4596/ MAX4597 MIN TYP 2 80 dB 83 8 8 20 0.05 pF pF pF % MAX 5 UNITS pC MAX4594-MAX4597 VISO TA = +25C NO or NC Off-Capacitance COM Off-Capacitance COM On-Capacitance Total Harmonic Distortion Plus Noise POWER SUPPLY Power-Supply Range V+ Supply Current CNO(OFF), CNC(OFF) CCOM(OFF) CCOM(ON) THD TA = +25C TA = +25C TA = +25C TA = +25C V+ I+ V+ = 5.5V, VIN = 0 or V+ TA = TMIN to TMAX 2.0 -1 5.5 1 V A ELECTRICAL CHARACTERISTICS-- +3V Supply (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V, TA = +25C.) (Notes 2, 3) PARAMETER ANALOG SWITCH Analog Signal Range On-Resistance DIGITAL I/O Input Logic High Input Logic Low Input Logic Current DYNAMIC Turn-On Time Turn-Off Time Charge Injection (Note 5) tON tOFF Q VNO or VNC = 2V, RL = 300, CL = 35pF, Figure 3 VNO or VNC = 2V, RL = 300, CL = 35pF, Figure 3 VNO or VNC = 0, CL = 1nF, Figure 2 TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C 2 30 25 45 55 50 60 4 ns ns pC VIH VIL IIH, IIL VIN = V+, 0 -1 0.03 2.0 0.8 1 V V A VCOM, VNO, VNC RON VNO or VNC = 1.5V, ICOM = 10mA, V+ = 2.7V TA = +25C TA = TMIN to TMAX 0 10 V+ 20 25 V SYMBOL CONDITIONS MIN TYP MAX UNITS _______________________________________________________________________________________ 3 Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 ELECTRICAL CHARACTERISTICS-- +3V Supply (continued) (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V, TA = +25C.) (Notes 2, 3) PARAMETER POWER SUPPLY V+ Supply Current I+ V+ = 3.6V, VIN = 0 or V+ TA = TMIN to TMAX -1 1 A SYMBOL CONDITIONS MIN TYP MAX UNITS Note 2: Parameters are 100% tested at +25C only, and guaranteed by correlation at the full-rated temperature. Note 3: Algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 4: Flatness is defined as the difference between the MAXIMum and minimum values of on-resistance as measured over the specified analog signal ranges. Note 5: Guaranteed by design. Note 6: Off-Isolation = 20log10 (VCOM / VNO), VCOM = output, VNO = input to off switch. Typical Operating Characteristics (V+ = +5V, TA = +25C, unless otherwise noted.) ON-RESISTANCE vs. COM VOLTAGE MAX4594-97 toc 01 ON-RESISTANCE vs. COM VOLTAGE (V+ = 5V) MAX4594-97 toc 02 ON-RESISTANCE vs. COM VOLTAGE (V+ = 3V) 9 8 7 RON () 6 5 4 3 TA = 0C TA = +85C TA = +25C MAX4594-97 toc 03 20 18 16 14 RON () V+ = 2V 7 TA = +85C 6 5 RON () 4 3 2 TA = +25C 10 12 10 8 6 4 2 0 0 1 2 3 4 5 COM VOLTAGE (V) V+ = 3V V+ = 5V TA = -40C TA = 0C 1 0 0 1 2 3 TA = -40C 2 1 0 4 5 0 0.5 1.0 1.5 2.0 2.5 3.0 COM VOLTAGE (V) COM VOLTAGE (V) ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE MAX4594-97 toc04 CHARGE INJECTION vs. COM VOLTAGE MAX4594-97 toc 05 SUPPLY CURRENT vs. TEMPERATURE MAX4594-97 toc 06 1 V+ = +5V 4 3 CHARGE INJECTION (pC) V+ = 5V 2 1 0 -1 -2 V+ = 3V 10 1 SUPPLY CURRENT (nA) V+ = +5V 0.1 V+ = +3V ON/OFF-LEAKAGE (nA) 0.1 ICOM(ON) NO, NC (OFF) 0.01 0.01 0.001 0.001 -40 -25 -10 5 20 35 50 65 80 TEMPERATURE (C) -3 0 1.0 2.0 3.0 4.0 5.0 COM VOLTAGE (V) 0.0001 -40 -15 10 35 60 85 TEMPERATURE (C) 4 _______________________________________________________________________________________ Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 Typical Operating Characteristics (continued) (V+ = +5V, TA = +25C, unless otherwise noted.) LOGIC THRESHOLD vs. SUPPLY VOLTAGE MAX4594-97 toc 07 TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE MAX4594-97 toc 08 TURN-ON/TURN-OFF TIME vs. TEMPERATURE 28 26 24 tON/tOFF (ns) 22 20 18 16 14 tON tOFF MAX4594-97 toc 09 2.0 1.8 1.6 LOGIC THRESHOLD (V) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 2.0 2.5 3.0 3.5 4.0 4.5 VIL VIH 40 35 30 tON/tOFF (ns) 25 20 15 10 5 30 tOFF tON 12 10 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -40 -15 10 35 60 85 SUPPLY VOLTAGE (V) TEMPERATURE (C) 5.0 SUPPLY VOLTAGE (V) FREQUENCY RESPONSE MAX4594-97 toc 10 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX4594-97 toc 11 0 ON-LOSS -10 -30 LOSS (dB) -50 -70 -90 -110 0.01 0.1 1 10 100 OFF-ISOLATION 0.1 THD + N (%) 0.01 0.001 0.0001 1000 0.01 0.1 1 FREQUENCY (kHz) 10 100 FREQUENCY (MHz) Pin Description PIN MAX4594 1 2 3 4 5 -- MAX4595 1 -- 3 4 5 2 MAX4596 2 4 3 1 5 -- MAX4597 2 -- 3 1 5 4 NAME COM NO GND IN V+ NC FUNCTION Analog Switch, Common Analog Switch, Normally Open Ground Digital Control Input Positive Supply-Voltage Analog Switch, Normally Closed Note: NO, NC, and COM pins are identical and interchangeable. Any pin may be considered as an input or an output; signals pass equally well in both directions. _______________________________________________________________________________________ 5 Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 Applications Information Analog Signal Levels Analog signals can range over the supply voltage (V+ to GND) with on-resistance changing very little over the entire range (see Typical Operating Characteristics). The MAX4594-MAX4597 are bidirectional, so the NO, NC, and COM pins can be used either as inputs or outputs. POSITIVE SUPPLY D1 V+ Power-Supply Sequencing and Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals or logic inputs, especially if the analog or logic signals are not current limited. If this sequencing is not possible, and if the analog or logic inputs are not current limited to <20mA, add 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 signal range to a diode drop (about 0.7V) below V+ for D1 or to a diode drop above ground for D2. The addition of diodes does not affect leakage. On-resistance increases by a small amount at low supply voltages. MAXIMum supply voltage (V+) must not exceed 6V. Protection diodes D1 and D2 also protect against some overvoltage situations. A fault voltage up to the absolute MAXIMum rating at an analog signal input does not damage the device, even if the supply voltage is below the signal voltage. Vg NO OR NC COM GND D2 Figure 1. Overvoltage Protection Using Two External Blocking Diodes Chip Information TRANSISTOR COUNT: 50 Test Circuits/Timing Diagrams V+ V+ V+ VNO or VNC = 0 VIN 0 MAX4594/MAX4596 VOUT CL 1000pF VOUT VOUT MAX4595/MAX4597 VIN IN MAX4594 MAX4595 MAX4596 MAX4597 COM GND NO or NC 50 VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = VOUT x CL Figure 2. Charge Injection 6 _______________________________________________________________________________________ Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 Test Circuits/Timing Diagrams (continued) V+ V+ V+ NO VNO VIN 0 50% tr 5ns tf 5ns VIN IN MAX4594 MAX4596 COM GND RL 300 VOUT VOUT CL 35pF 0 tON 90% 90% 50 tOFF V+ V+ V+ NC VNC VIN 0 50% VIN IN MAX4595 MAX4597 COM GND RL 300 VOUT VOUT CL 35pF 0 tOFF tON 90% 90% 50 Figure 3. Switching Times V+ 10nF NETWORK ANALYZER 50 50 V+ V+ V+ MAX4594 MAX4595 MAX4596 COM IN MAX4597 GND NO OR NC VIN 10nF V+ VOUT COM MEAS REF IN CAPACITANCE METER VOUT VIN VOUT VIN f = 1MHz NC OR NO GND MAX4594 MAX4595 MAX4596 MAX4597 0 OR 2.4V 50 50 OFF-ISOLATION = 20log ON-LOSS = 20log Figure 4. Off-Isolation and On-Channel Bandwidth Figure 5. Channel On-/Off-Capacitance 7 _______________________________________________________________________________________ Low-Voltage, Single-Supply, 10 SPST CMOS Analog Switches MAX4594-MAX4597 ________________________________________________________Package Information SC70, 5L.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. 8 ___________________MAXIM Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 2000 MAXIM Integrated Products Printed USA is a registered trademark of MAXIM Integrated Products. |
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