PS320 PERICOM | Alldatasheet

Document overview

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Technical content

Features

  • •••• Low On-Resistance (17W typ.) Minimizes Distortion and Error Voltages
  • Low Glitching Reduces Step Errors in Sample-and-Holds
  • Split-Supply Operation (±3V to ±8V)
  • Improved Second Sources for MAX320/MAX321/MAX322
  • On-Resistance Matching Between Channels, 0.2W typ.
  • On-Resistance Flatness, <2W typ.
  • Low Off-Channel Leakage, <5nA @ +85°C
  • TTL/CMOS Logic Compatible
  • Fast Switching Speed, tON <150ns
  • Guaranteed Break-Before-Make action (PS322) eliminates momentary crosstalk
  • Rail-to-Rail Analog Signal Dynamic Range
  • Low Power Consumption, <1.25mW
  • MSOP Package Minimizes Board Area

Applications

  • Audio Switching and Routing
  • Portable Instruments
  • Data Acquisition Systems
  • · Sample-and-Holds
  • Telecommunication Systems
  • Battery-Powered Systems Switches shown for logic “0” input Top View Functional Diagrams, Pin Configurations, and Truth Tables Top ViewTop View

Description

The PS320/PS321/PS322 are improved high-precision, medium volt- age analog switches designed to operate with +3V to +8V power supplies. The PS320 is a dual, single-pole single-throw (SPST), normally open (NO) switch. The PS321 has the same pinout as the PS320 but it has two normally closed (NC) switches. The PS322 has one normally open (NO) and one normally closed (NC) switch per package. When on, each switch conducts current equally well in either direction. In the off state, each switch blocks voltages up to the power-supply rails. With ±5V power supplies, the PS320/PS321/PS322 guarantee <35W ON-resistance. ON-resistance matching between channels is within 2W . ON-resistance flatness is less than 4W over the specified range. All three devices guarantee low leakage currents (<100pA @25°C, <10nA @+85°C) and fast switching speeds (t ON <150ns). Break-before-make switching action protects against momentary crosstalk (PS322). For single-supply operation the PS323/PS324/PS325 are recom- mended. NC1 COM1 IN2 COM2 NC2 IN1 PS321 N01 COM1 IN2 COM2 NC2 IN1 PS322 NO1 COM1 IN2 COM2 NO2 IN1 PS320 023SP cigoLh ctiwS FFO NO 123SP cigoLh ctiwS NO FFO 223SP cigoL hctiwS 1 hctiwS 2 FFO NO NO FFO

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Caution: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Electrical Specifications - Dual Supplies (V± = ± 5V ±10%, VINH = 3.5V, VINL = 1V) retemaraPl obmySs noitidnoC) C°(.pmeT. niM (2) .pyT )1( .xaM )2( stinU hctiwSgolanA egnaRlangiSgolanA )3( V GOLANA lluF– V+ VV ecnatsiseR-NO R NO ,V5.4–=–V,V5.4=+V V ON Vro CN V5.3±= I MOC ,Am1= 526 15 3 W lluF5 4 hctaMecnatsiseR-NO slennahCneewteB )4( D R NO V5–=–V,V5=+V V ON Vro CN ,V3±= I MOC =, Am1 523 .02 lluF4 ssentalFecnatsiseR-NO )5( R TALF) NO( ,V5–=–V,V5=+V I MOC ,Am1= V ON Vro CN V3±= 521 4 lluF6 egakaeLffOCNroON tnerruC )6( I )FFO(ON ro I )FFO(CN ,V5.5–=–V,V5.5=+V V MOC ,V5.4±= V ON Vro CN V5.4±= 521 .0–1 0.0–1 .0 An lluF5 –5 egakaeLffOMOC tnerruC )6( I )FFO(MOC –V,V5.5=+VV 5.5–= V MOC ,V5.4±= V ON Vro CN V5.4±= 521 .0–1 0.0–1 .0 lluF5 –5 egakaeLnOMOC tnerruC )6( I )NO(MOC ,V5.5–=–V,V5.5=+V V MOC V5.4±= V ON Vro CN V5.4±= 522 .0–4 0.0–2 .0 lluF0 1–0 1 Continuous Power Dissipation Voltages Referenced to V– Peak Current, COM, NO, NC Absolute Maximum Ratings Note 1: Signals on NC, NO, COM, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating Thermal Information continued next page

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Notes: 1. The algebraic convention, where the most negative value is a minimum and the most positive is a maximum, is used in this data sheet. 2. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing. 3. Guaranteed by design 4. D R ON = D R ON max. –DR ON min. 5. Flatness is defined as the difference between the maximum and minimum value of on-resistance measured. 6. Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25ºC. 7. Off Isolation = 20log 10 [ VCOM / (VNC or VNO ) ]. retemaraPl obmySs noitidnoC. pmeT )C°( .niM )1( .pyT )2( .xaM )1( stinU tupnIcigoL htiwtnerruCtupnI hgiHegatloVtupnI I HNI V NI V0=srehtolla,V5.3= lluF 5.0–5 00.05 .0 Am htiwtnerruCtupnI woLegatloVtupnI I LNI V NI +V=srehtolla,V0=5 .0–5 00.05 .0 tupnIhgiHcigoL egatloV V HNI V +V–=–V,V8<+V<V3+ V6.0 tupnIwoLcigoL egatloV V LNI +V–=–V,%01±V5=+V1 +V–=–V,V8<+V<V3+ V3.0 cimanyD emiTnO-nruTt NO V MOC ,V3±= 2erugiF 525 60 51 sn lluF5 71 emiTffO-nruTt FFO 525 30 01 lluF0 51 ekaM-erofeB-kaerB yaleDemiT )3( tD 3SP2 2l noy , RL =030 W ,C L=3 3 erugiF,Fp5 noitcejnIegrahC )3( QC L ,Fn1=V NEG R,V0= NEG 0= W ,4 erugiF8 2 1C p noitalosIffO )7( O RRI RL =5 0W C, L =f,Fp5=z HM1, e rugiF5 2 7– Bd klatssorCX KLAT RL 05= W C, L =f,Fp5=z HM1, 6 erugiF5 8– ffOONroCN ecnaticapaC C )FFO( zHM1=f, 7 erugiF9 FpffOMOC ecnaticapaC C )FFO(MOC zHM1=f, 7 erugiF9 nOMOC ecnaticapaC C )NO(MOC zHM1=f, 8 erugiF2 2 ylppuS egnaRylppuS-rewoP– V,+V7 .2±8 ±V ylppuSevitisoP tnerruC +I V,V5.5–=-V,V5.5=+V NI ,+VroV0= fforonoslennahcllA 520 85 21 Am lluF0 02 ylppuSevitageN tnerruC –I 525 21–0 8– lluF0 02– Electrical Specifications - Dual Supplies (V± = ± 5V ±10%, VINH = 3.5V, VINL = 1V) continued

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Figure 2. Switching Time Figure 3. Break-Before-Make Interval (PS322 only) Figure 4. Charge Injection

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Test Circuits/Timing Diagrams (continued) Figure 5. Off Isolation Figure 7. Channel-Off Capacitance Figure 6. Crosstalk Figure 8. Channel-On Capacitance

Ordering Information

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