9-56; Rev ; 7/99 General Description The // quad analog switches feature low on-resistance of 2.5Ω max. On-resistance is matched between switches to.5ω max and is flat (.5Ω max) over the specified signal range. Each switch can handle Rail-to-Rail analog signals. Offleakage current is only 5nA max at TA = +85 C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have lower power requirements, use less board space, and are more reliable than mechanical relays. The has four normally closed (NC) switches, and the has four normally open (NO) switches. The has two NC and two NO switches, and features guaranteed break-before-make switching. These devices operate from a single +4.5 to +36 supply or from dual ±4.5 to ±2 supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility when operating across the entire supply voltage range. Reed Relay Replacement Test Equipment Communication Systems PBX, PABX Systems Audio-Signal Routing Applications Avionics ADC Systems Sample-and-Hold Circuits Data Acquisition Systems 2.5Ω, Quad, SPST, Features Low On-Resistance (2.5Ω max) Guaranteed RON Match Between Channels (.5Ω max) Guaranteed RON Flatness over Specified Signal Range (.5Ω max) Rail-to-Rail Signal Handling Guaranteed Break-Before-Make () > 2k ESD Protection per Method 35.7 +4.5 to +36 Single-Supply Operation ±4.5 to ±2 Dual-Supply Operation TTL/CMOS-Compatible Control Inputs Ordering Information PART TEMP. RANGE PIN-PACKAGE CAE CWE CPE C to +7 C C to +7 C C to +7 C 6 SSOP 6 Wide SO 6 Plastic DIP EAE -4 C to +85 C 6 SSOP EWE -4 C to +85 C 6 Wide SO EPE -4 C to +85 C 6 Plastic DIP Ordering Information continued at end of data sheet. // Pin Configurations/Functional Diagrams/Truth Tables TOP IEW IN 6 IN2 IN 6 IN2 IN 6 IN2 COM 2 5 COM2 COM 2 5 COM2 COM 2 5 COM2 NC 3 4 NC2 NO 3 4 NO2 NO 3 4 NC2 4 5 3 2 4 5 3 2 4 5 3 2 NC4 6 NC3 NO4 6 NO3 NO4 6 NC3 COM4 7 COM3 COM4 7 COM3 COM4 7 COM3 IN4 8 9 IN3 IN4 8 9 IN3 IN4 8 9 IN3 SSOP/SO/DIP LOGIC SWITCH ON SSOP/SO/DIP LOGIC SWITCH ON SWITCHES SHOWN FOR LOGIC INPUT SSOP/SO/DIP LOGIC SWITCHES, 4 SWITCHES 2, 3 ON ON Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone -8-998-88. For small orders, phone -8-835-8769.
// ABSOLUTE MAXIMUM RATINGS to...-.3 to +44 to...+.3 to -44 to...-.3 to +44 to...( -.3) to ( +.3) All Other Pins to (Note )...( -.3) to ( +.3) Continuous Current (COM_, NO_, NC_)...±2mA Peak Current (COM_, NO_, NC_) (pulsed at ms, % duty cycle)... ±3mA Continuous Power Dissipation (T A = +7 C) SSOP (derate 7.mW/ C above +7 C)...57mW Wide SO (derate 9.52mW/ C above +7 C)...762mW Plastic DIP (derate.53mw/ C above +7 C)...842mW Operating Temperature Ranges MAX466_C_E... C to +7 C MAX466_E_E...-4 C to +85 C Storage Temperature Range...-65 C to +5 C Lead Temperature (soldering, sec)...+3 C Note : Signals on NC_, NO_, COM_, or IN_ exceeding or will be 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 Dual Supplies ( = +5, = -5, = +5, IN_H = +2.4, IN_L = +.8,, unless otherwise noted. Typical values are at.) (Note 2) PARAMETER ANALOG SWITCH Input oltage Range (Note 3) COM_ to NO or NC_ On-Resistance COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) SYMBOL COM_, NO_, NC_ R ON R ON CONDITIONS I COM_ = ma, NO_ or NC_ = ± I COM_ = ma, NO_ or NC_ = ± MIN TYP MAX.7 2.5 2.7..5.6 UNITS Ω Ω COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) R FLAT(ON) I COM_ = ma; NO_ or NC_ = -5,, 5..5.6 Ω Off-Leakage Current (NO_ or NC_) (Note 6) I NO_, I NC_ COM_ = ±, NO_ or NC_ = + -.5..5-5 5 na COM Off-Leakage Current (Note 6) I COM_() COM_ = ±, NO_ or NC_ = + -.5..5-5 5 na COM On-Leakage Current (Note 6) I COM_(ON) COM_ = ±, NO_ or NC_ = ± or floating -. -2 2 na LOGIC INPUT Input Current with Input oltage High I IN_H IN_ = 2.4, all others =.8 -.5..5 Input Current with Input oltage Low I IN_L IN_ =.8, all others = 2.4 -.5..5 Logic Input oltage High IN_H 2.4 Logic Input oltage Low IN_L.8 2
ELECTRICAL CHARACTERISTICS Dual Supplies (continued) ( = +5, = -5, = +5, IN_H = +2.4, IN_L = +.8,, unless otherwise noted. Typical values are at.) (Note 2) PARAMETER POWER SUPPLY Power-Supply Range Positive Supply Current Negative Supply Current Logic Supply Current Ground Current Break-Before-Make Time ( only) Off-Isolation (Note 7) Crosstalk (Note 8) NC_ or NO_ Capacitance COM_ Off-Capacitance On-Capacitance SYMBOL I+ I- I L I SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Charge Injection t ON t t OPEN Q ISO CT C C COM C COM IN = or 5 -.5..5-5 5 IN = or 5 -.5..5-5 5 IN = or 5 -.5..5-5 5 IN = or 5 -.5..5-5 5 COM_ = ±, Figure 2 COM_ = ±, Figure 2 COM_ = ±, Figure 3, R L = 5Ω, C L = 5pF, f = MHz, Figure 5 R L = 5Ω, C L = 5pF, f = MHz, Figure 6 f = MHz, Figure 7 f = MHz, Figure 7 f = MHz, Figure 8 CONDITIONS C L =.nf, GEN =, R GEN =, Figure 4 MIN TYP MAX ±4.5 ±2. 5 3 3 275 4 75 3 3-56 -59 55 55 25 UNITS ns ns ns pc db db pf pf pf // 3
// ELECTRICAL CHARACTERISTICS Single Supply ( = +2, =, = +5, IN_H = +2.4, IN_L = +.8,, unless otherwise noted. Typical values are at.) (Note 2) PARAMETER ANALOG SWITCH Input oltage Range (Note 3) COM_ to NO or NC_ On-Resistance COM_ to NO_ or NC_ On-Resistance Match Between Channels (Notes 3, 4) COM_ to NO_ or NC_ On-Resistance Flatness (Notes 3, 5) Off-Leakage Current (NO_ or NC_) (Notes 6, 9) COM Off-Leakage Current (Notes 6, 9) COM On-Leakage Current (Notes 6, 9) LOGIC INPUT Input Current with Input oltage High SYMBOL COM_, NO_, NC_ R ON R ON R FLAT(ON) I NO_ I NC_ I COM_() I COM_(ON) I IN_H I COM_ = ma, NO_ or NC_ = CONDITIONS I COM_ = ma, NO_ or = NC_ = I COM_ = ma; NO_ or NC_ = 3, 6, 9 COM_ =, ; NO_ or NC_ =, NO_ or NC_ =, ; COM_ =, COM_ =,; NO_ or NC_ =,, or floating IN_ = 2.4, all others =.8 MIN TYP MAX 3 4 5.3.4.5..7.8 -.5..5-5 5 -.5..5-5 5 -. -2 2 -.5..5 UNITS Ω Ω Ω na na na Input Current with Input oltage Low Logic Input oltage High Logic Input oltage Low POWER SUPPLY I IN_L IN_H IN_L IN_ =.8, all others = 2.4 -.5..5 Power-Supply Range +4.5 +36. Positive Supply Current I+ IN = or 5 -.5..5-5 5 Logic Supply Current I L IN = or 5 -.5..5-5 5 Ground Current I IN = or 5 -.5..5-5 5 2.4.8 4
ELECTRICAL CHARACTERISTICS Single Supply (continued) ( = +2, =, = +5, IN_H = +2.4, IN_L = +.8,, unless otherwise noted. Typical values are at.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SWITCH DYNAMIC CHARACTERISTICS Turn-On Time (Note 3) t ON COM_ =, 2 4 Figure 2 5 Turn-Off Time (Note 3) t COM_ =, 25 Figure 2 35 Break-Before-Make Time ( only) (Note 3) t OPEN COM_ =, Figure 3, 5 25 ns C L =.nf, GEN =, R GEN =, Charge Injection Q 2 pc Figure 4 R L = 5Ω, C L = 5pF, f = MHz, Crosstalk (Note 8) CT -6 db Figure 6 NC_ or NO_ Capacitance C f = MHz, Figure 7 85 pf COM Off-Capacitance C COM f = MHz, Figure 7 85 pf On-Capacitance C COM f = MHz, Figure 8 4 pf 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: Guaranteed by design. Note 4: R ON = R ON(MAX) - R ON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Note 6: Leakage parameters are % tested at maximum-rated hot temperature and guaranteed by correlation at +25 C. Note 7: Off-isolation = 2log [ COM / ( NC or NO )], COM = output, NC or NO = input to off switch. Note 8: Between any two switches. Note 9: Leakage testing at single supply is guaranteed by testing with dual supplies. ns ns // 5
// (, unless otherwise noted.) RON (Ω) RON (Ω) 5. 4.5 4. 3.5 3. 2.5 2..5..5 4. 3.5 3. 2.5 2..5..5 ON-RESISTANCE vs. COM (DUAL SUPPLIES), = ±5, = ±5-2 -5 - -5 5 5 2 COM (), = ±2 ON-RESISTANCE vs. COM AND TEMPERATURE (SINGLE SUPPLY) = +2 = T A = +85 C T A = -4 C 2 3 4 5 6 7 8 9 2 COM () /2/3- /2/3-4 RON (Ω) LEAKAGE (pa) 2.5 2.25 2..75.5.25..75.5 ON-RESISTANCE vs. COM AND TEMPERATURE (DUAL SUPPLIES) T A = +85 C.25, = ±5-5 - -5 5 5 COM () k k k.. m.m = +5 = -5 Typical Operating Characteristics T A = -4 C ON/-LEAKAGE CURRENT vs. TEMPERATURE ON-LEAKAGE -LEAKAGE -4-2 2 4 6 8 TEMPERATURE ( C) /2/3-2 /2/3-5 RON (Ω) Q (pc) 9 8 7 6 5 4 3 2 4 3 2 - -2 ON-RESISTANCE vs. COM (SINGLE SUPPLY) = 5 = 2 2 4 6 8 2 4 6 8 2 22 24 COM () = 24 CHARGE INJECTION vs. COM = -5 = +5 = = 2-2 -5 - -5 5 5 2 COM () /2/3-3 /2/3-6 I+, I- (na) k k k... = +5 = -5 POWER-SUPPLY CURRENT vs. TEMPERATURE I+ -4-2 2 4 6 8 TEMPERATURE ( C) I- /2/3-7 LOSS (db) - -2-3 -4-5 FREQUENCY RESPONSE ON-PHASE ON-RESPONSE /2/3-8 -6 -ISOLATION -36-7 -45 = +5-8 = -5-54 -9 INPUT = OdBm 5Ω IN AND OUT -63 - -72. FREQUENCY (MHz) 8 9 - -9-8 -27 PHASE (degrees) 6
, 6, 9, 8 2, 5,, 7 3, 4,, 6 PIN, 6, 9, 8 2, 5,, 7 3, 4,, 6, 6, 9, 8 2, 5,, 7 NAME IN, IN2, IN3, IN4 COM, COM2, COM3, COM4 NC, NC2, NC3, NC4 NO, NO2, NO3, NO4 4 4 4 Logic-Control Digital Inputs Analog Switch Common Terminals FUNCTION Analog Switch Normally Closed Terminals Analog Switch Normally Open Terminals 3, 6 NO, NO4 Analog Switch Normally Open Terminals 4, NC2, NC3 Analog Switch Normally Closed Terminals 5 5 5 Ground 2 2 2 Logic-Supply Input 3 3 3 Positive Analog Supply Input Applications Information Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence on first, then, followed by the logic inputs, NO, or COM. If power-supply sequencing is not possible, add two small-signal diodes (D, D2) in series with the supply pins and a Schottky diode between and for overvoltage protection (Figure ). Adding diodes reduces the analog signal range to one diode drop below and one diode drop above, but does not affect the devices low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between and should not exceed 44. Off-Isolation at High Frequencies In 5Ω systems, the high-frequency on-response of these parts extends from DC to above MHz with a typical loss of -2dB. When the switch is turned off, however, it behaves like a capacitor and off-isolation decreases with increasing frequency. (Above 3MHz, the switch actually passes more signal turned off than turned on.) This effect is more pronounced with higher source and load impedances. Pin Description Negative Analog Supply-oltage Input. Connect to for singlesupply operation. Above 5MHz, circuit board layout becomes critical and it becomes difficult to characterize the response of the switch independent of the circuit. The graphs shown in the Typical Operating Characteristics were taken using a 5Ω source and load connected with BNC connectors to a circuit board deemed average ; that is, designed with isolation in mind, but not using stripline or other special RF circuit techniques. For critical applications above 5MHz, use the MAX44, MAX44, and MAX442, which are fully characterized up to 6MHz. COM_ * INTERNAL PROTECTION DIODES * * +5-5 D D2 * * NO_ Figure. Overvoltage Protection Using External Blocking Diodes // 7
// LOGIC INPUT SWITCH OUTPUT +3 COM COM 5% t ON Figure 2. Switching-Time Test Circuit O +5 NO t tr < 2ns tf < 2ns.9.9 LOGIC INPUT WAEFORMS INERTED FOR SWITCHES THAT HAE THE OPPOSITE LOGIC SENSE. SWITCH INPUT LOGIC INPUT OUT COM_ COM_ NO_ OR NC_ IN_ LOGIC INPUT +5 +5 +3 5% R L Ω -5 REPEAT TEST FOR EACH SWITCH. FOR LOAD CONDITIONS, SEE Electrical Characteristics. C L INCLUDES FIXTURE AND STRAY CAPACITANCE. O = COM ( R L R L + R ON ) SWITCH OUTPUT C L 35pF O COM2 COM2 IN, 2 NC R L2 OUT2 C L2 R L C L SWITCH OUTPUT ( OUT ).9 UT LOGIC INPUT -5 C L INCLUDES FIXTURE AND STRAY CAPACITANCE. R L = Ω C L = 35pF SWITCH OUTPUT 2 ( OUT2 ) t D t D.9 OUT2 Figure 3. Break-Before-Make Interval ( only) 8
GEN R GEN +5 COM Figure 4. Charge-Injection Test Circuit SIGNAL GENERATOR dbm +5 IN +5 NC OR NO -5 IN = +3 +5 C L O O IN IN SIGNAL GENERATOR dbm ON ON Q = ( O )(C L ) O IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. +5 COM +5 N_ 5Ω // COM IN OR 3. 3. IN IN2 OR 3. ANALYZER R L COM NC OR NO ANALYZER R L N_2 COM2 N.C. -5-5 Figure 5. Off-Isolation Test Circuit Figure 6. Crosstalk Test Circuit 9
// CAPACITANCE METER f = MHz +5 COM NC OR NO +5-5 Figure 7. Switch Off-Capacitance Test Circuit IN OR 3. Ordering Information (continued) PART TEMP. RANGE PIN-PACKAGE CAE C to +7 C 6 SSOP CWE C to +7 C 6 Wide SO CPE C to +7 C 6 Plastic DIP EAE -4 C to +85 C 6 SSOP EWE -4 C to +85 C 6 Wide SO EPE -4 C to +85 C 6 Plastic DIP CAE C to +7 C 6 SSOP CWE C to +7 C 6 Wide SO CPE C to +7 C 6 Plastic DIP EAE -4 C to +85 C 6 SSOP EWE -4 C to +85 C 6 Wide SO EPE -4 C to +85 C 6 Plastic DIP CAPACITANCE METER f = MHz +5 COM NC OR NO +5-5 Figure 8. Switch On-Capacitance Test Circuit TRANSISTOR COUNT: 8 IN OR 3. Chip Information
Package Information SSOP.EPS //
//MAX46663 Package Information (continued) SOICW.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. 2 Maxim Integrated Products, 2 San Gabriel Drive, Sunnyvale, CA 9486 48-737-76 999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.