9-393; Rev ; 8/99 5Ω, Quad, SPST, CMOS Analog Switches General Description The quad analog switches feature 5Ω max on-resistance. 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. The off-leakage current is only 2.5nA max at +85 C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or in applications where current switching is required. These switches have low power requirements, require less board space, and are more reliable than mechanical relays. The has four normally closed (NC) switches, the has four normally open (NO) switches, and the has two NC and two NO switches. These switches operate from a single supply of +4.5 to +36 or from dual supplies of ±4.5 to ±2. All digital inputs have +.8 and +2.4 logic thresholds, ensuring TTL/CMOS logic compatibility when using ±5 supplies or a single +2 supply. Reed Relay Replacement Test Equipment Communication Systems Applications PBX, PABX Systems Audio-Signal Routing Avionics Features Low On-Resistance (5Ω max) Guaranteed RON Match Between Channels (.5Ω max) Guaranteed RON Flatness over Specified Signal Range (.5Ω max) Rail-to-Rail Signal Handling Guaranteed ESD Protection > 2 per Method 35.7 Single-Supply Operation: +4.5 to +36 Dual-Supply Operation: ±4.5 to ±2 TTL/CMOS-Compatible Control Inputs Ordering Information PART TEMP. RANGE PIN-PACKAGE CSE CPE C to +7 C C to +7 C 6 Narrow SO 6 Plastic DIP ESE -4 C to +85 C 6 Narrow 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 L 4 5 3 2 L 4 5 3 2 L 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 SO/DIP LOGIC SWITCH ON SO/DIP LOGIC SWITCH ON SWITCHES SHOWN FOR LOGIC INPUT LOGIC SO/DIP SWITCHES, 4 ON SWITCHES 2, 3 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 L to...(d -.3) to ( +.3) All Other Pins to D (Note )... ( -.3) to ( +.3) Continuous Current (, NO_, NC_)...±mA Peak Current (, NO_, NC_) (pulsed at ms, % duty cycle)... ±3mA Continuous Power Dissipation (T A = +7 C) 6-pin Narrow SO (derate 8.7mW/ C above +7 C)...696mW 6-pin Plastic DIP (derate.53mw/ C above +7 C)..842mW Operating Temperature Ranges MAX46_C_E... C to +7 C MAX46_E_E...-4 C to +85 C Storage Temperature Range...-65 C to +6 C Lead Temperature (soldering, sec)...+3 C Note : Signals on NC_, NO_,, or IN_ exceeding or 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 Dual Supplies ( = +5, = -5, L = 5, IN_H = 2.4, IN_L =.8,, unless otherwise noted. Typical values are at.) PARAMETER ANALOG SWITCH Input oltage Range (Note 3) to NO_ or NC_ On-Resistance SYMBOL, NO_, NC_ R ON CONDITIONS I = ma, NO_ or NC_ = ± MIN TYP MAX (Note 2) 3 4 5 UNITS Ω to NO_ or NC_ On-Resistance Match Between Channels (Note 4) R ON I = ma, NO_ or NC_ = ±.2.5.7 Ω to NO_ or NC_ On-Resistance Flatness (Note 5) R FLAT(ON) I = ma; NO_ or NC_ = -5,, 5.2.5.6 Ω Off-Leakage Current (NO_ or NC_) (Note 6) I NO_, I NC_ = ±, NO_ or NC_ = + -.5..5-2.5 2.5 na COM Off-Leakage Current (Note 6) I () = ±, NO_ or NC_ = + -.5..5-2.5 2.5 na COM On-Leakage Current (Note 6) I (ON) = ±, NO_ or NC_ = ± or floating -.2-5 5 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 High oltage IN_H 2.4.7 Logic Input Low oltage IN_L.7.8 2
ELECTRICAL CHARACTERISTICS Dual Supplies (continued) ( = +5, = -5, L = 5, IN_H = 2.4, IN_L =.8,, unless otherwise noted. Typical values are.) PARAMETER POWER SUPPLY Power-Supply Range Positive Supply Current Negative Supply Current Logic Supply Current Ground Current Turn-On Time Turn-Off Time Charge Injection 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 t ON t Q ISO CT C () C (COM) C (COM) CONDITIONS All channels on or off, IN = or 5 All channels on or off, IN = or 5 All channels on or off, IN = or 5 All channels on or off, IN = or 5 Figure 2, = ± Figure 2, = ± R L = 5Ω, C L = 5pF, f = MHz, Figure 4, R L = 5Ω, C L = 5pF, f = MHz, Figure 5, f = MHz, Figure 6, f = MHz, Figure 6, f = MHz, Figure 7, ±4.5 ±2. -.5..5 5 5 -.5..5 5 5 -.5..5 5 5 -.5..5 5 5 C L =.nf, GEN =, R GEN =, Figure 3, MIN TYP MAX 2 3 225-62 -6 34 34 5 UNITS ns ns pc db db pf pf pf 3
ELECTRICAL CHARACTERISTICS Single Supply ( = +2, =, L = 5, IN_H = 2.4, IN_L =.8,, unless otherwise noted. Typical values are at.) PARAMETER ANALOG SWITCH Input oltage Range (Note 3) to NO_ or NC_ On-Resistance to NO_ or NC_ On-Resistance Match Between Channels (Note 4) to NO_ or NC_ On-Resistance Flatness (Note 5) Off-Leakage Current (NO_ or NC_) (Notes 6, 9) Off-Leakage Current (Notes 6, 9) On-Leakage Current (Notes 6, 9) SYMBOL, NO_, NC_ R ON R ON R FLAT(ON) I NO_, I NC_ I () I (ON) I = ma, NO_ or NC_ = CONDITIONS I = ma, NO_ or NC_ = I = ma; NO_ or NC_ = 3, 6, 9 =, ; NO_ or NC_ =, =, ; NO_ or NC_ = =, ; NO_ or NC_ =, or floating MIN TYP MAX (Note 2) 5.5 8.5.5.7.25.6.8 -.5..5-2.5 2.5 -.5..5-2.5 2.5 -.2-5 5 UNITS Ω Ω Ω na na 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 High oltage Logic Input Low oltage IN_H IN_L 2.4.7.7.8 POWER SUPPLY Power-Supply Range 4.5 36. Positive Supply Current I+ All channels on or off, IN = or 5 -.5..5 5 5 Logic Supply Current I L All channels on or off, IN = or 5 -.5..5 5 5 -.5..5 Ground Current I IN = or 5 5 5 4
ELECTRICAL CHARACTERISTICS Single Supply (continued) ( = +2, =, L = 5, IN_H = 2.4, IN_L =.8,, unless otherwise noted. Typical values are at.) Turn-Off Time PARAMETER Charge Injection Crosstalk (Note 8) SYMBOL SWITCH DYNAMIC CHARACTERISTICS Turn-On Time NC_ or NO_ Capacitance Off-Capacitance On-Capacitance t ON t Q CT C () C (COM) C (COM) Figure 2, =, = 2 Figure 2, =, = 2 CONDITIONS C L =.nf, GEN =, R GEN =, Figure 3, = 2, =, R L = 5Ω, C L = 5pF, f = MHz, Figure 5, f = MHz, Figure 6, f = MHz, Figure 6, f = MHz, Figure 7, MIN TYP MAX (Note 2) 6 22 2 6 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 [ / ( NC_ or NO_ )], = 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. -6 52 52 UNITS ns ns pc db pf pf pf 5
(, unless otherwise noted.) RON (Ω) RON (Ω) 7. 6.5 6. 5.5 5. 4.5 4. 3.5 3. 2.5 2. 8. 7.5 7. 6.5 6. 5.5 5. 4.5 4. 3.5 3. ON-RESISTANCE vs. COM (DUAL SUPPLIES), = ±5., = ±2. I COM = ma, = ±5. -2-5 - -5 5 5 2 COM () ON-RESISTANCE vs. COM AND TEMPERATURE (SINGLE SUPPLY) = 2. 2 4 6 8 2 COM () T A = +85 C T A = -4 C toc toc4 RON (Ω) LEAKAGE (pa) 5. 4.5 4. 3.5 3. 2.5 2..5 k k k.. ON-RESISTANCE vs. COM AND TEMPERATURE (DUAL SUPPLIES) T A = +85 C -5 - -5 5 5 = +5 = -5 COM () Typical Operating Characteristics T A = -4 C I COM = ma ON/-LEAKAGE CURRENT vs. TEMPERATURE ON-LEAKAGE -LEAKAGE -4-25 - 5 2 35 5 65 8 95 TEMPERATURE ( C) roc2 toc5 RON (Ω) Q (pc) 8 6 4 2 8 6 4 2 5-5 - -5-2 -25 ON-RESISTANCE vs. COM (SINGLE SUPPLY) = 2. = 5. I COM = ma = 24. 3 6 9 2 5 8 2 24 COM () CHARGE INJECTION vs. COM -5 - -5 5 5 COM () = 2 =, = 5 toc3 N toc6 ton, t (ns) 2 8 6 4 2 8 6 4 2 TURN-ON/TURN- TIME vs. COM R L = Ω C L = 35pF t t ON - -8-6 -4-2 2 4 6 8 COM () toc7 ton, t (ns) 7 6 5 4 3 2 9 8 7 TURN-ON/TURN- TIME vs. SUPPLY OLTAGE t t ON COM = R L = Ω C L = 35pF 2 3 4 5 6 7 8 9 2, () AMX464 toc8 ton, t (ns) 7 6 5 4 3 2 9 TURN-ON/TURN- TIME vs. TEMPERATURE COM = R L = Ω C L = 35pF t t ON 8-4 -2 2 4 6 8 TEMPERATURE ( C) toc 9 6
(, unless otherwise noted.), 6, 9, 8 2, 5,, 7 3,4,, 6 I+, I- (na) k k k.. -4-25 - 5 2 35 5 65 8 95 TEMPERATURE ( C) PIN, 6, 9, 8 2, 5,, 7 3,4,, 6 SUPPLY CURRENT vs. TEMPERATURE I+, 6, 9, 8 2, 5,, 7 I- Typical Operating Characteristics (continued) toc NAME IN, IN2, IN3, IN4 COM, COM2, COM3, COM4 NC, NC2, NC3, NC4 NO, NO2, NO3, NO4 Logic-Control Digital Inputs FUNCTION Analog Switch, Common Terminals Analog Switch, Normally Closed Terminals Analog Switch, Normally Open Terminals 3, 6 NO, NO4 Analog Switch, Normally Open Terminal LOSS (db) - -2-3 -4-5 -6-7 -8-9 FREQUENCY RESPONSE ON-PHASE ON-RESPONSE -ISOLATION toc - -72. FREQUENCY (MHz) 8 9-9 -8-27 -36-45 -54-63 PHASE (DEGREES) Pin Description 4, NC2, NC3 Analog Switch, Normally Closed Terminal 4 4 4 5 5 5 Ground 2 2 2 L Logic-Supply Input 3 3 3 Positive Analog Supply Input Negative Analog Supply-oltage Input. Connect to for singlesupply operation. 7
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 supply pins 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. These protection diodes are not recommended when using a single supply. 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. 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 strip-line or other special RF circuit techniques. For critical applications above 5MHz, use the MAX44, MAX44, and MAX442, which are fully characterized up to 6MHz. * * +5-5 D D2 * * NO_ * INTERNAL PROTECTION DIODES Figure. Overvoltage Protection Using External Blocking Diodes LOGIC INPUT +3 5% tr < 2ns tf < 2ns SWITCH INPUT +5 +5 L NO_ OR NC_ SWITCH OUTPUT O t IN_ R L Ω C L 35pF SWITCH OUTPUT O t ON.9.9 LOGIC INPUT WAEFORMS INERTED FOR SWITCHES THAT HAE THE OPPOSITE LOGIC SENSE. LOGIC INPUT -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 ) Figure 2. Switching-Time Test Circuit 8
GEN R GEN +5 IN_ Figure 3. Charge-Injection Test Circuit SIGNAL GENERATOR dbm C L +5 +5 NC_ OR NO_ -5 IN = +3 +5 L C L O IN_ or 2.4 O IN IN SIGNAL GENERATOR dbm or 2.4 ON ON Q = ( O )(C L ) O IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. C +5 COM IN +5 L N IN2 5Ω or 2.4 ANALYZER R L NC_ OR NO_ C ANALYZER R L N2 COM2 C N.C. -5-5 Figure 4. Off-Isolation Test Circuit Figure 5. Crosstalk Test Circuit 9
CAPACITANCE METER f = MHz C +5 NC_ OR NO_ +5 L -5 Figure 6. Switch Off-Capacitance Test Circuit IN C or 2.4 CAPACITANCE METER f = MHz C +5 NC_ OR NO_ +5-5 Figure 7. Switch On-Capacitance Test Circuit L IN_ C or 2.4
Ordering Information (continued) PART TEMP. RANGE PIN-PACKAGE CSE C to +7 C 6 Narrow SO CPE C to +7 C 6 Plastic DIP ESE -4 C to +85 C 6 Narrow SO EPE -4 C to +85 C 6 Plastic DIP CSE C to +7 C 6 Narrow SO CPE C to +7 C 6 Plastic DIP ESE -4 C to +85 C 6 Narrow SO EPE -4 C to +85 C 6 Plastic DIP TRANSISTOR COUNT: Chip Information Package Information SOICN.EPS
Package Information (continued) PDIPN.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.