Precision, Quad, SPST Analog Switches

Transcription

1 98; Rev ; 6/ General Description The are precision, quad, singlepole singlethrow (SPST) analog switches. The MAX36 has four normally closed (N) switches, and the MAX36 has four normally open (NO) switches. Both parts offer low channel onresistance (less than 8Ω), guaranteed to match within 3Ω between channels and to remain flat over the analog signal range ( 9Ω max). Both parts also offer low leakage (less than pa at + and less than na at +8 ) and fast switching (turnon time less than ns and turnoff time less than 7ns). The are fabricated with Maxim s new improved V silicongate process. Design improvements guarantee extremely low charge injection (p), low power consumption (3µW), and electrostatic discharge (ESD) greater than V. The V maximum breakdown voltage allows railtorail analog signal handling capability. These monolithic switches operate with a single positive supply (+V to +3V) or with split supplies (±.V to ±V) while retaining MOSlogic input compatibility and fast switching. MOS inputs provide reduced input loading. Applications SampleandHold ircuits Guidance and ontrol Systems HeadsUp Displays Test Equipment ommunications Systems BatteryOperated Systems PBX, PABX Features Low On Resistance: < Ω Typical (8Ω Max) Guaranteed Matched OnResistance Between hannels: < Ω Guaranteed Flat OnResistance over Analog Signal Range: 9Ω Max Guaranteed harge Injection: < p Guaranteed Offhannel Leakage: <na at +8 ESD Guaranteed > V per Method 3.7 SingleSupply Operation (+V to +3V) BipolarSupply Operation (±.V to ±V) TTL/MOSLogic ompatible RailtoRail Analog Signal Handling apability Ordering Information PART TEMP RANGE PINPAKAGE MAX36PE to +7 6 Plastic DIP MAX36SE to +7 6 Narrow SO MAX36/D to +7 Dice* MAX36ETE to +8 6 Thin QFN MAX36EPE to +8 6 Plastic DIP MAX36ESE to +8 6 Narrow SO MAX36EJE to +8 6 ERDIP MAX36MJE to + 6 ERDIP MAX36PE to +7 6 Plastic DIP MAX36SE to +7 6 Narrow SO MAX36/D to +7 Dice* MAX36ETE to +8 6 Thin QFN MAX36EPE to +8 6 Plastic DIP MAX36ESE to +8 6 Narrow SO MAX36EJE to +8 6 ERDIP MAX36MJE to + 6 ERDIP *ontact factory for dice specifications. Pin onfigurations/functional Diagrams/Truth Tables TOP VIEW IN OM N 3 MAX IN OM N N.. IN OM NO 3 MAX IN OM NO N.. N OM IN N3 OM3 IN3 NO OM IN NO3 OM3 IN3 DIP/SO MAX36 LOGI SWITH ON OFF Pin onfigurations continued at end of data sheet. SWITHES SHOWN FOR LOGI "" INPUT DIP/SO MAX36 LOGI SWITH OFF ON N.. = Not Internally onnected Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 ABSOLUTE MAXIMUM RATINGS Voltage Referenced to...v...v IN_, OM_, NO_, N_...( V) to ( + V) or 3mA (whichever occurs first) ontinuous urrent (any terminal)...3ma Peak urrent OM, NO, N (pulsed at ms, % duty cycle max)...ma ESD...V ontinuous Power Dissipation (T A = +7 ) (Note ) Note : All leads are soldered or welded to P board. Plastic DIP (derate.3mw/ above +7 )...8mW Narrow SO (derate 8.7mW/ above +7 )...696mW Thin QFN (derate 33.3mW/ above +7 )...667mW ERDIP (derate.mw/ above +7 )...8mW Operating Temperature Ranges: MAX36... to +7 MAX36_E... to +8 MAX36_MJE... to + Storage Temperature Range...6 to + Lead Temperature (soldering, s)...+3 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 Supplies ( = V, = V, = V, V INH =.V, V INL =.8V, T A = T MIN to T MAX, unless otherwise noted.) PARAMETER SYMBOL ONDITIONS MIN TYP MAX UNITS (Note ) ANALOG V OM_, AnalogSignal Range V NO_, (Note 3) V V N_ On Resistance I (NO or N) = ma, T R A = + 8 (OM_ to NO_ or ON V OM_ = 8.V or 8.V, OM_ to N_ terminals) = 3.V, = 3.V T A = T MIN to T MAX Ω I On Resistance Match (NO or N) = ma, T R A = + Between hannels (Note ) ON V OM_ = V or V, = V, = V T A = T MIN to T MAX Ω I On Resistance Flatness (NO or N) = ma, T R A = + 9 (Note ) ON V OM_ = V or V, = V, = V T A = T MIN to T MAX Ω V T A = +... Off Leakage urrent I NO _, OM_ = ±.V, V (NO_ or N_ terminal) I N _ N_ or V NO_ = +.V,, E = 6.V, = 6.V T A = T MAX M na V T A = +... Off Leakage urrent N_ or V NO_ = ±.V, I OM V OM_ = +.V,, E (OM_ terminal) = 6.V, = 6.V T A = T MAX M na On Leakage urrent I T OM V A = OM_ = ±.V, (OM_ and N_ or NO_ or V N_ or V NO_ = ±.V,, E 6 6 I T A = T terminal) NO, I N = 6.V, = 6.V MAX M na DIGITAL Input urrent with Input Voltage High Input urrent with Input Voltage Low I INH V IN_ =.V. na I INH V IN_ =.8V. na

3 ELETRIAL HARATERISTIS Dual Supplies (continued) ( = V, = V, = V, V INH =.V, V INL =.8V, T A = T MIN to T MAX, unless otherwise noted.) SUPPLY PARAMETER SYMBOL ONDITIONS MIN TYP MAX UNITS (Note ) PowerSupply Range, ±. ±. V Positive Supply urrent I+ Negative Supply urrent I All channels on or off, V IN = V or V, = 6.V, = 6.V All channels on or off, V IN = V or V, Ground urrent I = 6.V, = 6.V DYNAMI µa T A = +. T A = T MIN to T MAX µa µa TurnOn Time t ON Figure, V S = ±V, R L = kω T A = + ns TurnOff Time t OFF MAX36, Figure, V OM = ±V T A = + 9 ns MAX36, Figure, V OM = ±V T A = + 7 ns harge Injection Off Isolation (Note ) rosstalk (Note 6) Q OIRR All channels on or off, V IN = V or V, = 6.V, = 6.V L = nf, V GEN = V, R GEN = Ω, Figure R L = Ω, L = pf, f = MHz, Figure 3 R L = Ω, L = pf, f = MHz, Figure T A = + p T A = + 6 db T A = + db Off apacitance N or NO (OFF) f = MHz, Figure T A = + pf Off apacitance OM_ OM(OFF) f = MHz, Figure T A = + pf hannelon apacitance OM(ON) f = MHz, Figure T A = + 6 pf 3

4 ELETRIAL HARATERISTIS Single Supply ( = V, = V, = V, V INH =.V, V INL =.8V, T A = T MIN to T MAX, unless otherwise noted.) PARAMETER SYMBOL ONDITIONS MIN TYP MAX UNITS (Note ) SWITH V OM_, AnalogSignal Range V NO_, (Note 3) V V N_ On Resistance I (N or NO) =.ma, T R A = + 6 (OM_ to NO_ or ON V OM = 3V, 8V, OM_ to N_ terminals) =.8V T A = T MIN to T MAX Ω SUPPLY PowerSupply Range 3 V Positive Supply urrent I+ All channels on or off, V IN = V or V µa All channels on or off, T Negative Supply urrent I A = +. µa V IN = V or V T A = T MIN to T MAX + µa Ground urrent I All channels on or off, V IN = V or V DYNAMI TurnOn Time t ON Figure, V S = 8V T A = + 3 ns TurnOff Time t OFF Figure, V S = 8V T A = + 6 ns harge Injection Q L = nf, V GEN = V, T A = + p Note : 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 : On resistance match between channels and flatness are guaranteed only with bipolarsupply operation. Note : See Figure 3. Off Isolation = log V OM V N _ or V NO_, V OM = output, V N or NO = input to off switch. Note 6: Between any two switches. See Figure.

5 Typical Operating haracteristics (T A = +, unless otherwise noted.) I N_, I NO_, I OM (na) 3 T A = + = V = V ON LEAKAGE URRENTS T A = +8 V N, V NO, I N_, I NO_, I OM (na) OFF LEAKAGE URRENTS T A = +8 T A = + = V = V V N, V NO, V IN (V) SWITHING THRESHOLD vs. BIPOLAR SUPPLY VOLTAGE MAX MIN ± ± ± ± BIPOLAR SUPPLY VOLTAGE (V) R ON (Ω) 7 7 ON RESISTANE vs. V OM AND UNIPOLAR SUPPLY VOLTAGE = V = V = V R ON (Ω) ON RESISTANE vs. V OM AND BIPOLAR SUPPLY VOLTAGE ±V ±V ±V ±V + + R ON (Ω) 8 6 ON RESISTANE vs. V OM AND BIPOLAR VOLTAGE AND TEMPERATURE = V, = V T A = + T A = + T A = 7 7 ON RESISTANE vs. V OM AND UNIPOLAR SUPPLY VOLTAGE AND TEMPERATURE T A = + SWITHING TIME vs. BIPOLAR SUPPLY VOLTAGE 3 3 SWITHING TIMES vs. UNIPOLAR SUPPLY VOLTAGE = V T A = + 6 R ON (Ω) 7 = V = V T A = TIME (ns) 8 t ON t OFF TIME (ns) t ON t OFF 8 ± ± ± ± BIPOLAR SUPPLY VOLTAGE (V) UNIPOLAR SUPPLY VOLTAGE (V)

6 (T A = +, unless otherwise noted.) Q (p) = V = V L = nf HARGE INJETION vs. V OM VOLTAGE Typical Operating haracteristics (continued) Q (p) = V = V L = nf HARGE INJETION vs. V OM VOLTAGE Pin Description PIN NAME DIP/SO THIN QFN NAME, 6, 9, 8,, 7, 6 IN IN Logic ontrol Input,,, 7 6, 3, 8, OM OM AnalogSwitch Drain Terminal FUNTION 3,,, 6,, 9, NO NO or N N N (normally closed, MAX36) NO (normally open, MAX36) AnalogSwitch Terminal NegativeSupply Voltage Input 3 Ground N.. No onnection. Not internally connected 3 PositiveSupply Voltage Input onnected to Substrate EP PAD Exposed Pad onnect pad to Applications Information Operation with Supply Voltages Other Than ±V O Using supply voltages other than ±V is reduces the analog signal range. The switches operate with bipolar supplies of ±.V to ±V. Typical operating characteristic graphs show typical on resistance for ±V, ±V, and ±V supplies. Switching times increase by a factor of two or more for ±V operation. The can also operate from +V to +3V unipolar supplies. Both parts can also be powered from unbalanced supplies such as +V and V. onnect to V when operating with a single supply. Proper powersupply sequencing is recommended for all MOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence on first, followed by, and logic inputs. If powersupply sequencing is not possible, add two small signal diodes in series with the supply pins for overvoltage protection (Figure 6). Adding the diodes reduces the analog signal range to V below and V below, but low switch resistance and low leakage characteristics are unaffected. Device operation is unchanged, and the difference from to should not exceed +V. 6

7 LOGI INPUT SWITH INPUT SWITH OUTPUT +3V V V OM V V O t ON %.8V O t OFF t f < ns t r < ns.8v O LOGI INPUT WAVEFORM IS INVERTED FOR SWITHES THAT HAVE THE OPPOSITE LOGI SENSE. Figure. SwitchingTime Test ircuit SWITH INPUT LOGI INPUT +3V V OM N_ OM_ +V NO_ OR N_ V FOR LOAD ONDITIONS, SEE SPEIFIATIONS L (INLUDES FIXTURE AND STRAY APAITANE) R L REPEAT TEST FOR HANNELS, 3, AND. V O = V OM RL R L + RON 3pF V O +V V O V GEN R GEN OM_ IN_ NO_ OR N_ L V O V O IN_ MAX36 OFF ON OFF V V IN = +3V IN_ OFF ON OFF MAX36 Q = V O L Figure. hargeinjection Test ircuit +V +V SIGNAL GENERATOR dbm OM N OR NO Ω SIGNAL GENERATOR dbm OM R GEN = Ω R GEN = Ω.8V,.V IN IN.8V,.V IN_.8V,.V ANALYZER R L N OR NO OM ANALYZER R L N_ OR NO_ V V Figure 3. rosstalk Test ircuit (repeat for channels 3 and ) Figure. OffIsolation Test ircuit 7

8 Precision Quad SPST Analog Switches METER IMPEDANE ANALYZER OR EQUIVALENT f = MHz +V +V OM_ NO_ OR N_ V Figure. hannel apacitance Test ircuit IN_.8V,.V OM_ N_ OR NO_ V g Figure 6. Overvoltage Protection Using Blocking Diodes Pin onfigurations (continued) TOP VIEW OM IN IN OM OM IN IN OM N N NO NO 3 MAX36 N.. 3 MAX36 N.. N 9 N3 NO 9 NO OM IN IN3 THIN QFN (mm x mm) OM3 OM IN3 OM3 THIN QFN (mm x mm) IN TRANSISTOR OUNT: 6; SUBSTRATE ONNETED TO. 8

9 Precision Quad SPST Analog Switches Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to PIN # I.D. D D/. A E/ E. B (NE) X e k D L D/ b E/ L. M A B PIN # I.D..3x k L E QFN THIN.EPS DETAIL A e (ND) X e DETAIL B e L L L L L L. e e A.8 A A3 PAKAGE OUTLINE 6,, 8, 3, L, THIN QFN, xx.8mm E 9

10 Precision Quad SPST Analog Switches Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to PKG. SYMBOL A A A3 b D E e L N ND NE JEDE 6L x MIN. NOM. MAX BS. k. L WHHB BS.. WHH OMMON DIMENSIONS L x 8L x 3L x L x MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX REF.. REF.. REF.. REF.. REF BS WHHD BS WHHD BS EXPOSED PAD VARIATIONS D PKG. E DOWN BONDS ODES MIN. NOM. MAX. MIN. NOM. MAX. ALLOWED T NO T YES T NO T YES T NO T NO T NO T YES T YES T NO T NO T YES T NO T YES T NO T YES NOTES:. DIMENSIONING & TOLERANING ONFORM TO ASME Y.M99.. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES. 3. N IS THE TOTAL NUMBER OF TERMINALS.. THE TERMINAL # IDENTIFIER AND TERMINAL NUMBERING ONVENTION SHALL ONFORM TO JESD 9 SPP. DETAILS OF TERMINAL # IDENTIFIER ARE OPTIONAL, BUT MUST BE LOATED WITHIN THE ZONE INDIATED. THE TERMINAL # IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN. mm AND.3 mm FROM TERMINAL TIP. 6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EAH D AND E SIDE RESPETIVELY. 7. DEPOPULATION IS POSSIBLE IN A SYMMETRIAL FASHION. 8. OPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS. 9. DRAWING ONFORMS TO JEDE MO, EXEPT EXPOSED PAD DIMENSION FOR T8, T83 AND T86.. WARPAGE SHALL NOT EXEED. mm. PAKAGE OUTLINE 6,, 8, 3, L, THIN QFN, xx.8mm E 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, San Gabriel Drive, Sunnyvale, A Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.