9-96; Rev ; 2/ 45, SPDT Analog Switch in SOT23-8 General Description The is a dual-supply, single-pole/doublethrow (SPDT) analog switch. On-resistance is 45 max and flat (7 max) over the specified signal range. The can handle Rail-to-Rail analog signals, and conducts analog or digital signals equally well in either direction. This switch operates from a single +9V to +36V supply, or from ±4.5V to ±2V dual supplies. The primary application areas are in the switching and routing of signals in telecommunications and test equipment. The features a switch transition time of 3ns max at +25, and a guaranteed break-before-make switching time of 5ns. Off-leakage current is only 2nA max at +25. The is available in a tiny 8-pin SOT23 package. Features Low On-Resistance 45 max ±5V Supplies 5 max R ON Match Between hannels Guaranteed R ON Flatness Over Specified Signal Range (7 max) V L Logic Supply Not Required Rail-to-Rail Signal Handling +9V to +36V Single Supply Operation ±4.5V to ±2V Dual Supply Operation Low rosstalk: -92dB at MHz High Off-Isolation: -92dB at MHz TTL/MOS-ompatible ontrol Inputs PBX, PABX Systems ommunication Systems DSL Test Equipment Avionics Audio Systems Redundant Systems Relay Replacement P Multimedia Boards Applications PART Ordering Information TEMP. RANGE P- PA K A G E TOP M ARK E KA- T - 4 to + 85 8-SOT23 AAIE Pin onfiguration TOP VIEW OM 8 N 2 7 3 6 4 5 N.. Rail-to-Rail is a registered trademark of Nippon Motorola, Inc. SOT23-8 LOGI OFF ON N ON OFF Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at -888-629-4642, or visit Maxim s website at www.maxim-ic.com.
ABSOLUTE MAXIMUM RATGS (Voltages referenced to.)...-.3v to +44.V...-44.V to +.3V to...-.3v to +44.V All Other Pins (Note )...( -.3V) to ( +.3V) ontinuous urrent into any Terminal...±mA ontinuous urrent (OM,, N)...±3mA Peak urrent (OM,, N) (pulsed at ms, % duty cycle)...±6ma ontinuous Power Dissipation (T A = +7 ) 8-Pin SOT23 (derate 8.9mW/ above +7 )...74mW Operating Temperature Range EKA...-4 to +85 Storage Temperature Range...-65 to +5 Junction Temperature...+5 Lead Temperature (soldering, s)...+3 Note : Signals on, N, OM, or 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. ELETRIAL HARATERISTIS Dual ±5V Supplies ( = +5V, = -5V, V IH = 2.4V, V IL =.8V, T A = T M to T MAX, unless otherwise noted. Typical values are at T A = +25.) (Notes 2, 3) PARAMETER SYMBOL ONDITIONS T A M TYP MAX UNITS ANALOG SWITH Analog Signal Range V, V N, V OM V I +25 33 45 On-Resistance R OM = ma; V or ON V N = ±V T M to T MAX 6 On-Resistance Matching Between hannels On-Resistance Flatness (Note 4) or N Off-Leakage urrent R ON R FLAT (ON) I (OFF) or I N(OFF) I OM = ma; V or +25.6 5 V N = ±V T M to T MAX 6 I OM = ma; V or +25.5 7 V N = +5V,, -5V T M to T MAX V OM = -4V, +4V; +25-2. 2 V or V N = +4V, -4V T M to T MAX - na OM On-Leakage urrent I OM(ON) V OM = +4V, -4V; +25-4 4 V or V N = +4V, -4V or floating T M to T MAX -2 2 na DIGITAL I/O Input Logic High Voltage V IH 2.4 V Input Logic Low Voltage V IL.8 V Input Leakage I V = or +5V - µa 2
ELETRIAL HARATERISTIS Dual ±5V Supplies (continued) ( = +5V, = -5V, V IH = 2.4V, V IL =.8V, T A = T M to T MAX, unless otherwise noted. Typical values are at T A = +25.) (Notes 2, 3) PARAMETER SYMBOL ONDITIONS T A M TYP MAX UNITS DYNAMI HARATERISTIS Transition Time t TRANS R L = k; V or V N = ±V; +25 9 3 L = 35pF; Figure 2 T M to T MAX 7 Break-Before-Make Delay t D R L = 3; V or V N = ±V; +25 5 L = 35pF; Figure 3 T M to T MAX 2 harge Injection Q V GEN = ; R GEN = ; L = nf; Figure 4 ns ns 2 p Off-Isolation V ISO L = 5pF, V OM = V RMS ; f = MHz, R L = 5, Figure 5 92 db rosstalk Total Harmonic Distortion THD f = MHz, R L = 5, L = 5pF; Figure 6 f = 2Hz to 2kHz, R L = 6, 5V RMS.5 % V or V N Off-apacitance (OFF), N(OFF) f = MHz; Figure 7 6 pf OM On-apacitance OM(ON) f = MHz; Figure 8 7 pf POWER SUPPLY Power-Supply Range ±4.5 ±2 V Positive Supply urrent I+ V = 5V V = or Negative Supply urrent I- V = or 5V 92 +25 38 75 T M to T MAX +25. T M to T MAX +25. T M to T MAX µa µa 3
ELETRIAL HARATERISTIS Single +2V Supply ( = +2V, =, V IH = 2.4V, V IL =.8V, T A = T M to T MAX, unless otherwise noted. Typical values are at T A = +25.) (Notes 2, 3) PARAMETER SYMBOL ONDITIONS T A M TYP MAX UNITS ANALOG SWITH Analog Signal Range V, V N, V V OM I +25 68 9 On-Resistance R OM = ma; V ON or V N = +V T M to T MAX 5 On-Resistance Matching Between hannels On-Resistance Flatness (Note 4) DYNAMI R ON R FL AT ( ON ) I OM = ma; V +25.7 6 or V N = +V T M to T MAX 7 I OM = ma; V or V N = +2V, +6V, +25 9 7 +V T M to T MAX 23 Transition Time t TRANS V or V N =, V or V, ; R L = k; L = 35pF; Figure 2 +25 6 65 T M to T MAX 2 ns Break-Before-Make Delay t D +V; R L = 3; L = 35pF; V or V N = Figure 3 +25 36 T M to T MAX ns harge Injection POWER SUPPLY Q V GE N = ; R GE N = ; L = nf; Figure 4 +25 p Power Supply Range 9 36 V Positive Supply urrent I+ V = +5V V = or +25 22 4 T M to T MAX 5 +25. T M to T MAX Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: All parts are % tested at +25. Limits across the full temperature range are guaranteed by design and correlation. Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. µa 4
(T A = +25, unless otherwise noted.) RON () 9 8 7 6 5 4 3 ON-RESISTANE vs. V OM (DUAL SUPPLIES) A: = +8V, = -8V B: = +V, = -V : = +2V, = -2V D: = +5V, = -5V E: = +2V, = -2V A B D E 2-2 - 2 V OM (V) toc RON () 9 8 7 6 5 4 3 2 ON-RESISTANE vs. V OM (SGLE SUPPLY) = +9V = +2V = +8V 2 3 4 V OM (V) Typical Operating haracteristics = +24V = +3V = +36V toc2 RON () 5 45 4 35 3 25 2 5 = +5V = -5V ON-RESISTANE vs. V OM AND TEMPERATURE T A = +85 T A = +25 T A = -4-5 - -5 5 5 V OM (V) toc3 RON () 9 8 7 6 5 4 = +2V = ON-RESISTANE vs. V OM AND TEMPERATURE T A = +85 T A = +25 T A = -4 toc4 ON-LEAKAGE (na).... = +5V = -5V V OM = ±V ON-LEAKAGE URRENT vs. TEMPERATURE DUAL SUPPLIES toc5 OFF-LEAKAGE (na)... OFF-LEAKAGE URRENT vs. TEMPERATURE = +5V = -5V V OM = V V N OR V = ±V ± DUAL SUPPLIES toc6 3 5 5 V OM (V). -4-2 2 4 6 8 TEMPERATURE ( ). -4-2 2 4 6 8 TEMPERATURE ( ) LOSS (db) - -2-3 -4-5 -6-7 -8-9 - - FREQUENY RESPONSE ON-RESPONSE OFF-ISOLATION. FREQUENY (MHz) ROSSTALK toc7 DISTORTION (%).... TOTAL HARMONI DISTORTION vs. FREQUENY = +5V = -5V 5V RMS SIGNAL 6 SOURE AND LOAD SIGNAL DISTORTION MEASUREMENT LIMITS k k k FREQUENY (Hz) toc8 I+ (µa) 9 8 7 6 5 4 3 2 = +5V = -5V = 5V SUPPLY URRENT vs. TEMPERATURE -4-5 35 6 85 TEMPERATURE ( ) I+ toc9 5
(T A = +25, unless otherwise noted.) I+ (µa)..... SUPPLY URRENT vs. LOGI VOLTAGE = +5V = -5V. 2 3 4 5 6 7 8 9 2 3 4 5 (V) toc HARGE (p) Typical Operating haracteristics (continued) 4 3 2 - -2-3 -4 HARGE JETION vs. V OM A: = +5V, = -5V B: = +2V, = A -5 - -5 5 5 V OM (V) B toc LOGI THRESHOLD (V) 5. 4.5 4. 3.5 3. 2.5 2..5..5 LOGI THRESHOLD vs. SUPPLY VOLTAGE 2 3 (V) toc2 Pin Description P NAME FUNTION OM Analog Switch ommon 2 N Normally losed Switch Terminal. N is connected to OM when is low. 3 Ground 4 Positive Supply Voltage Input 5 N.. No onnection 6 Digital ontrol Input 7 Negative Supply Voltage Input 8 Normally Open Switch Terminal. is connected to OM when is high. Detailed Description The is a high-voltage, single-pole/doublethrow (SPDT) analog switch that operates from dual ±4.5V to ±2V supplies or from a single +9V to +36V supply. The has one normally closed (N) switch and one normally open () switch. MOS switch construction allows bidirectional processing of rail-to-rail analog signals. The has break-before-make switching. The transition time for switching from one input to the other is typically 9ns. The off-leakage is typically less than pa, and on-leakage is typically less than 2pA. Applications Information Overvoltage Protection Proper power-supply sequencing is recommended for all MOS 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, _, or OM. If power-supply sequencing is not possible, add two small signal diodes (D, D2) in series with supply pins (Figure ). Adding diodes reduces the analog signal range to one diode drop below and one diode drop above, but does not affect the device s low switch resistance and low 6
leakage characteristics. Device operation is unchanged, and the difference between and should not exceed 44V. These protection diodes are not recommended when using a single supply. Off-Isolation at High Frequencies In 5 systems, the high-frequency on-response of these parts extends from D to above 3MHz, with a typical loss of -3.6dB. When the switch is turned off, however, it behaves like a capacitor, and off-isolation decreases with increasing frequency. This effect is more pronounced with higher source and load impedances. Above 5MHz, circuit board layout becomes critical. The graphs shown in the Typical Operating haracteristics were taken using a 5 source and load connected with BN connectors. Test ircuits/timing Diagrams D _ OM V g D2 Figure. Overvoltage Protection LOGI PUT SWITH OUTPUT +3V V V O 5% t TRANS.9V t R < 2ns t F < 2ns t TRANS.9V N LOGI PUT V N V +V N OM V O R L L 35pF V N -V L LUDES FIXTURE AND STRAY APAITANE. Figure 2. Transition Time 7
+3V N OM R L 3 V OUT Test ircuits/timing Diagrams (continued) L 35pF LOGI PUT +3V 5% LOGI PUT SWITH OUTPUT (V OUT ).9 V OUT t D L LUDES FIXTURE AND STRAY APAITANE. Figure 3. Break-Before-Make Test ircuit V O V O OM N OR V O V GEN L nf OFF ON OFF Q = ( V O )( L ) DEPENDS ON SWITH ONFIGURATION; PUT POLARITY DETERMED BY SENSE OF SWITH. V = +3V Figure 4. harge Injection 8
SIGNAL GENERATOR OM Test ircuits/timing Diagrams (continued) OM ANALYZER R L N OR V APAITANE METER f = MHz N OR V Figure 5. Off-Isolation Figure 7. hannel-off apacitance SIGNAL GENERATOR OM N 5 OM ANALYZER V R L APAITANE METER f = MHz N OR V Figure 6. rosstalk Between Switches Figure 8. OM On-apacitance TRANSISTOR OUNT: 33 PROESS TEHLOGY: MOS hip Information 9
Package Information SOT23, 8L.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, 2 San Gabriel Drive, Sunnyvale, A 9486 48-737-76 2 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.