MUX-16/MUX-28 16-CHANNEL/ DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS (OVERVOLTAGE PROTECTED) FEATURES e JFET Switches Rather Than CMOS Highly Resistant To Static Discharge Damage No SCR Latch-up Problems Low ON Resistance 2900 Typical Low Leakage Current Digital Inputs Compatible With TTL and CMOS Break-Before-Make Action @ 125C Temperature-Tested Dice Available Overvoltage Protected Supply Loss Protection MUX-16 Pin Compatible With DG506, HI-506A, AD7506 @ MUX-28 Pin Compatible With DG507, HI-507A, AD7507 * Avaliable in Die Form ORDERING INFORMATION ' PACKAGE OPERATING 25C CERDIP Lec PLASTIC TEMPERATURE RESISTANCE 28-PIN 28-CONTACT -28-PIN RANGE 2900 MUX16AT* - - ML 2902 MUX16ET - - IND 4000 MUX16BT MUX16BTC/883 - MIL 4002 MUX16FT - MUX16FP XIND 400 - - MUX16FPC XIND 2900 MUX28AT* - - MiL 2902 MUX28ET ~ - IND 4002 MUX28BT* MUX28BTC/883 - MIL 4000 MUX28FT - MUX28FP XIND 400a - - MUX28FPC XIND For devices processed in total compliance to MIL-STD-883, add /883 after part number. Consult factory for 883 data sheet. Burn-in is available on commercial and industrial temperature range parts in CerDIP, plastic DIP, and TO-can packages. For ordering information, see 1990/91 Data Book, Section 2. FUNCTIONAL DIAGRAMS GENERAL DESCRIPTION The MUX-16 is a monolithic 16-channel analog muitiplexer which connects a single output to 1 of the 16 analog inputs depending upon the state of a 4-bit binary address. Discon- nection of the output is provided by a logical O at the ENABLE input, thereby providing a package selection function. The MUX-28 is a monolithic 8-channel differential analog multiplexer configured in a double pole, 8-position (plus OFF) electronic switch array. A 3-bit binary input address connects a pair of independent analog inputs from each 8-channel input section to the corresponding pair of inde- pendent analog outputs. Disconnection of both inputs is provided by a logical 0 at the ENABLE input, thereby offer- ing a package select function. Fabricated with Precision Monolithics' high performance Bipolar-JFET technology, these devices offer low, constant ON resistance. Performance advantages include low leak- age currents and fast settling time with low crosstalk to satisfy a wide variety of applications. These multiplexers do not suffer from fatch-up or static discharge blow-out prob- lems associated with similar CMOS parts. The digital inputs are designed to operate from both TTL and CMOS levels while always providing a definite break-before-make action without the need for external pull-up resistors. For single 8-channel and dual 4-channel models, refer to the MUX-08/MUX-24 data sheet. MUX-16 S; S82 S83 S84 S| 5 5S, Sg 1 OF 16 DECODERS DRAIN Sg Sig 847 Siz Sig S14 Sig Ste MUX-28 DRAINA Sia San S50 S7a San 1OF B DECODERS DRAINS Sig S23 Sip Sag S58 Sep S7p Sep 13-53 8/89, Rev. A2 m2 ai x a = By 5 _~ = H ra 5 & = w < Zz <PIN CONNECTIONS & TRUTH TABLES MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS Ve DAAIN B NC. 28-PIN PLASTIC DIP MUX-28BTC/883 (P-Suftlx) 208 ont 28-PINCERDIP (TC-Suftix) T-Suffix te PLCC (T-Suffix) = (PC-Suftix) j19) ENABLE S18 GND ne. fal wc. [1a] MUX-16 MUX-28 ON" ON" "ON" go A, A, A, A, EN CHANNEL A, A, A, A, EN CHANNEL A, A, A, EN CHANNEL Rg 3 : i 14 PAIR Leelee] xX x X X L NONE HULULL H 9 DRL NONE Peete H ot HEEHAH 0 Youn 4 MUX-16BTC/883 ant 2 HE HLH " LL HA , ren tn t LH H 3 HL H Suffix LHL 3 LL HHH 4 H HLL H 13 . PLCC PHA H 4 (PC-Suffix) L HLL oH 5 HHL HH 14 WL LH 5 lL HLH H 6 HH HL H 15 HLH H 6 L HHL H 7 H HHH H 16 WH LDH - L HHH H a GH HOH - ABSOLUTE MAXIMUM RATINGS (Note 1) Operating Temperature Range, Maximum Current Through Any Pin ..........cccessssessesereee 25m/ MUX-1 6/28-AT, BT, BTC... . 55C to +125C PACKAGE TYPE S, (Note 2) Ge UNIT! MUX-16/28-ET wee 725C to +85C MUX-16/28-FP, FPC, FT... we 40C to +85C 28-Pin Hermetic DIP (T) 55 15 SCN Junction Temperature (T}) see -65C to +150C 28-Pin Plastic DIP (P) 56 30 CA Storage Temperature Range ............ -65C to +150C 28-Contact LCG (TC) a6 35 CA Lead Temperature (Soldering, 60 SOC) 0.0... eceereeee 28-Comact PLCC (PC) 70 33 CA Maximum Junction Temperature NOTES: V4 Supply to V- Supply 36V 1, Ratings apply to both DICE and packaged parts, unless otherwise noted. Logic Input Voltage....... Analog Input Voltage (V~ or -4V) to V+ Supply 2. Sa is specified for worst case mounting conditions, i.e., 84 is specitied vice in socket for CerDIP, P-DIP, and LCC packages; @,, |s specified . V Supply ~20V to V+ Supply +20V device soldered to printed circuit board for PLCC package. ELECTRICAL CHARACTERISTICS at Vs = +15V and Ta = 25C, unless otherwise noted. MUX-16A/E MUX-16B/F MUX-28A/E MUX-28B/F PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX UNITS ON Resistance Ron Vg S 10V, lg = 200nA 290 380 400 580 4 ARoy With Applied Voltage ARon ~10V S Vg 10V, Ig = 200nA - 15 5 - 15 5 9 Rion Match Between Switches Ron Match = Vg = OV, Ig = 200uA _ 7 15 _ 9 20 +1 +11 ~ - Analog Voltage Range Va (Note 6) e -15 _ *% a _ Source Current (Switch OFF: Is (OFF) Vg = 10V, Vp = - 10V (Note 1) 0.01 1 0.01 2 n : unecn once. _ _ MUX-16 02 1 02 2 Drain Current (Switch OFF: Ip (OFF Vg = 10V, Vp = -10V (Note 1) MUX-28 _ 04 1 _ 0.4 2 n am, Ip iON: _ MUX-16 02 1 02 2 Leakage Current (Switch ON") Ig ON) Vo = 10V (Note 1: MUX-28 _ 04 4 _ 04 2 r Digital Input Current lin Vin = 0.4V to 15V _ 1 10 _ 1 10 L 13-54 8/89, Rev. ,MUX-16/MUX-28 16-CHANNEL/DUAL 8-GHANNEL JFET ANALOG MULTIPLEXERS ELECTRICAL CHARACTERISTICS at V, = #15V and T, = +25C, unless otherwise noted. Continued MUX-16A/E MUX-16B/F MUX-28A/E MUX-28B/F PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Digital "0" Enable Current line (EN} Ven =0.4V ~ 4 10 - 4 10 pA Digital (nput Capacitance Cora - 3 - 3 - pF bcpein or t (Notes 2,5) Figure 1 = 1.4 2.0 - 18 2.5 PHL Switching Time (raan) ere (Test Circuits) - 12 18 - 16 22 Bs 10V Step to 0.10% - 2.6 - - 2.7 - Output Settling Time t, 10V Step to 0.05% - 3.2 - - 3.4 - Bs 10V Step to 0.02% - 4.0 - ~ 7.2 - Break-Before-Make Delay topen Figura 3 - 0.7 - - 1 - us "ae (Note 5) Figure 2 _ _ Enable Delay "ON Non gern (Test Circuits) 1 2 1.2 2.5 us 1" (Note 5) Figure 2 MUX-16 - 0.25 0.5 - 0.25 0.5 Enable Delay "OFF torr (EN) (Test Circuits) MUX-28 - 025 05 - 025 06 us h 1 5 (Note 4) Figure 4 _ _ _ _ OFF" Isolation SOQore (Test Circuits) 66 66 dB (Note 3) Figure 5 _ _ _ _ Crosstalk CT (Test Circuits) 75 75 dB . Switch "OFF," Source Capacitance Cy torr) Vg = OV, Vp, = OV - 2.5 - - 2.5 - pF . . Switch "OFF," MUX-16 - 14 - ~ 13 - Drain Capacitance Cp (OFF) Vg = OV, V, = OV MUX-28 - 8 - = 8 - pF Input to Output Capacitance Cos (OFF) (Note 4) - 0.15 - - 0.15 - pF Positive Supply Current V+= 15V MUX-16 ~ 18 19 ~ 9 19 a MUX-2B - 15 19 ~ 8 19 (AN Digital Inputs It mA Logic "0" or "1") V+ =25V MUX-16 7 12 - - 8 _ MUX-28 = 12 ~ - 7 - Negative Supply Current Vo = -15V MUX-16 7 5 7 7 35 7 ee MUX-2B ~ 5 7 - 3 7 (All Digital Inputs i mA Logic "0" or *1") Ve =-5V MUX-16 - 4 - ~ a - a . MUX-28 - 4 - - 2.5 ~ NOTES: 4. OFF isolation is measured by driving channel 6 (8B) with ALL channels OFF. +. Conditions applied to leakage tests insure worst case leakages. R, = 1kQ, Cc = 10pF, Vs =5V AMS, f = 500kHz. Cys is computed fram the OFF 2. R, = 10MQ, C, = 10pF. isolation measurement. 3. Crosstalk is measured by driving channel 8 (8B*) with channel 7 (7B*) ON. 5. Sample tested. R, = 1MQ, C, = 10pF, V, = 5V AMS, f = 500kHz. 6 . Guaranteed by leakage current and Ry, tests. ELECTRICAL CHARACTERISTICS atv, =+15V,-55C <T, = +125C for MUX-16AT/BT/BTC and MUX-28AT/BT/BTC; -25C sT, s +85C for MUX-16ET and MUX-28ET; 40C < T, = +85C for MUX-16 FT/FP/FPC and MUX-28FT/FP/FPC, unless otherwise roted. MUX-16A/E MUX-16B/F MUX-28A/E MUX-28B/F PARAMETER SYMBOL. CONDITIONS MIN TYP MAX MIN TYP MAX UNITS "ON" Resistance Fon Ve x= 10, I, = 200pA - - 500 - - 800 Q ARG With Applied Voltage = ARG y ~10V < V, 10V, I, = 200pA - 2 - - 5.5 - % Ron Match Between Switches RA, Match Vg = OV, i, = 200nA - 10 - ~ 15 - % Analog Voltage Range Va (Note 6} "o a - "0 n , - Vv Source Current (Switch"OFF) Ig (OFF) Vs =10V, Vp = ~10V (Note 1) - - 25 - - 50 nA Jrain Current (Switch OFF") lp (OFF) Vg = 10V, V, =-10V (Note 1} ~- - 75 - - 250 nA oe OKe) ip (ow Vp = 10V (Note 1) - - 75 - 250 nA Jigital 1" input Voltage ViwH (Note 6) 2 - - 2 - - Vv Jigital O" input Voltage Vine (Note 6) - - 0.7 - - 0.7 Vv ligital Input Current lw Vin = 0.4V to 15V - ~ 20 - - 20 pA ligital "0" Enable Current lw SEN) Ven = 0.4V - ~ 20 - ~ 20 pA asitive Supply Current + All Digital Inputs Logic 0 or "1" - - 24 - ~ 24 mA egative Supply Current i- All Digital Inputs Logic "0" or "1" - - a2 - - 8.2 mA 13-55 8/89, Rev. A2 ANALOG SWITCHES/ MULTIPLEXERS es)DICE CHARACTERISTICS (125C TESTED DICE AVAILABLE) MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS MUX-16 DIE SIZE 0.110 = 0.076 inch, 8360 sq. rnils (2.794 X 1.930 mm, 5392 sq. mm) For additional DICE ordoring Information, reter to 1990/91 Data Book, Section 2. eer 1. POSITIVE SUPPLY 17. ADDRESS BIT 0 (AO) 1. POSITIVE SUPPLY 17, 4. SOURCE 16 (S16) 18. ENABLE 2. DRAINB 18. 5. SOURCE 15 (S15) 19. SOURCE 1 (S1)} 4. SOURCE 8 (S88) 19. 6. SOURCE 14 (S14) 20. SOURCE 2 (52) 5. SOURCE 7 (S7B) 20. 7. SOURCE 13 ($13) 21, SOURCE 3 (S3) 6. SOURCE 6 (S6B) 21. 4. SOURCE 12 ($12) 22. SOURCE 4 ($4) 7. SOURCE 5 ($58) 22. 9. SOURCE 11 ($11) 23, SOURCE 5 (S5) 8. SOURCE 4 (S4B) 23. 10. SOURCE 10 (S10) 24. SOURCE 6 (S6} 8. SOURCE 3 ($38) 24. 11. SOURCE 9 (S9} 25. SOURCE 7 (S7} 10. SOURCE 2 (S28) 25. 12. GROUND 26. SOURCE 8 (S8) 11. SOURCE 1 (S18) 26. 14. ADDRESS BIT3(A3) 27. NEGATIVE SUPPLY (SUBSTRATE) 12. GROUND 27. 15. ADDRESS BIT2(A2) 28. DRAIN 15. ADDRESS BIT2(A2) 28. 16. ADDRESS BIT 1 (A1) 16. ADDRESS BIT 1 (A1) _) Sst 4 qa aaa aS ADDRESS BIT 0 (A0) ENABLE SOURCE 1 (S1A) SOURCE 2 (S2A) SOURCE 3 (S3A) SOURCE 4 (854A) SOURCE 5 (SSA) SOURCE 6 (S6A) SOURCE 7 (S7A) SOURCE 8 (S8A) NEGATIVE SUPPLY (SUBSTRATE) ORAIN A WAFER TEST LIMITS at V+ = 15V, V-= 15V, Ta = 25C far MUX-16/28 N and G, Ta= 125C for MUX-16/28 NT and GT, uniess otherwise noted. MUX-16/ MUX-16/ MUX-16/ MUX-16/ MUX-28NT MUX-28N MUX-28GT MUX-28G PARAMETER SYMBOL CONDITIONS LIMIT LIMIT LIMIT LIMIT UNITS ON Resi R Vs = OV. 540 380 80 esistance ON Ig = 200pA 0 580 1 MAX Digital 1 Input Voltage ViNH 2 2 2 2 V MIN Digital 0 Input Voltage VINL a8 0.8 0.8 0.8 Vv MAX Digital O input Current Lint Vin = 0.4V 20 10 20 10 yA MAX Digital O Enable Current HNLLEN: Ven = 0.4V 20 10 20 10 yA MAX Positive Supply Current (All Digital inputs Logic "0"! 4 2a 19 24 19 mA MAX Negative Supply Current _ \AIl Digital Inputs Logic "0"; | 82 , 82 ; mA MAX Analog Input Range Va Note 2) +10 410 +10 210 Vv MIN NOTE: Electrical tests are performed at wafer probe to the limits shown, Due to variations in assembly methods and normal yield toss, yield after Packaging is not guaranteed for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing. TYPICAL ELECTRICAL CHARACTERISTICS at V+ = 15V, V-=15V and Ta = 25C for MUX-16/28 Nand G, Ta= 125C for MUX-16/28 NT and GT, unless otherwise noted. MUX-16/ MUX-16/ MUX-16/ MUX-16/ MUX-28NT MUX-28N MUX-28GT MUX-28G PARAMETER SYMBOL CONDITIONS TYPICAL TYPICAL TYPICAL TYPICAL UNITS a, tpHL 2 1 26 15 Switching Time ittpani tein Note 1: Figure 1 18 0.9 24 14 us Output Settling Time ts 10V Step to 0.1% i Note 1) 2.5 1.5 29 19 us Break-Before-Make Delay topeNn Note 1: Figure 3. Test Circuits: 0.8 08 1 1 Ms Crosstalk CT Note 1: Figure 5 Test Circuits: 70 70 70 70 de ARon With Applied Voltage ARon 10V = Vg 2 10V, Ig = 200nA 15 15 15 15 9 Leakage Current i Switch ON") Ip.oN: Vp- 10V Note 1: 20 0.2 20 02 ns +11 7H +11 +11 Analog Input Range Va Note 2: ~15 415 15 -15 NOTES: 1. The data shown is extrapolated from measurements made on the 2. Guaranteed by Ron and leakage current tests. packaged devices 13-56 8/89, Rev. :PMD MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS TYPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, unless otherwise noted.) ON RESISTANCE (Ron) vs ANALOG VOLTAGE (V4) Ron 8 SWITCH VOLTAGE (Vep) Ron vs SWITCH CURRENT (Is) 00 600 6 V+ = +15V Vt = +15V ig = +2002 MUX-16/28 B, F v-=15V MUX-16/28 B, F Ve = -1BV ! s a 500 | Ta = 25C 500 Ta 225C MUX-16/28 B, F Ig = +200.A MUX-16/28 A, E a _ 400 3 400 Zz S S MUX.16/28 A, E e a & 300 300 200 200 o 100 100 -10 6 20 2 6 10 ~800 400 0 400 8001200 7000 1000 0 Ta00 2000 Va (VOLTS) sp mv) Ig (uA) 1g MUX-16 SWITCH LEAKAGE MUX-28 SWITCH LEAKAGE CURRENTS vs ANALOG CURRENTS vs ANALOG Ron v8 TEMPERATURE (T) {INPUT VOLTAGE (Va) INPUT VOLTAGE (Va) 1.0 Vie st5v Muxei28 BF ver sy ita auare # V- = -15 2 ; & Ta = 25C fa ot Fas t w g Ip (OFF) 2 a 16/28 AE 3 Wy ie 3 = 3 Fi - i Wa (OFF) +f oot 6 1p (ON) & = 5 = WN a a mW o.oo! & ~ ~ -15 -10 -5 0 we . uo 15-10-58 108520 ANALOG INPUT VOLTAGE we * TEMPERATURE (C) Va (VOLTS) = Nn , 9 SWITCH LEAKAGE CURRENTS SUPPLY CURRENTS vs SWITCH CAPACITANCES vs vs TEMPERATURE TEMPERATURE (T) ANALOG INPUT VOLTAGE (Va) z 100 26 voy, Vt = +15V re ey CpioNn) 4 tpn} + vom -16y 24h tT, = 25C 1 Iston) A IptOFF) MUX-16/28 A,E z 2 (OFF) 1 = gj 16 7 1.0 i = oo 01 Ig (OFF) CpiOrF 16/28 BF Cg(OFF) 0.01 0 60-25. 0 2 GO 75 100 126 60. 200 20 60 100140 10-8 6 4 2 0 2 4 6 8 10 TEMPERATURE (C} TEMPERATURE (C) ANALOG INPUT VOLTAGE (Vq} 13-57 8/89, Rev. A2PM) MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS TYPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, uniess otherwise noted.) MUX-16 MUX-28 OFF PERFORMANCE OF OFF PERFORMANCE OF CHANNEL 8 CHANNEL 8 140 T T TTT T oT] a 8 Co Too T 2 : ves +15v | = CROSSTALK (PIN #3 GROUNDED) | | | ] z v= 1sv = . So eins q 120 + Ta = 25C Z 120 Set OFF ISOLATION (PIN #3 < KIN . < KING GROUNDED) | | j/ 8 NTN ! itll | 8 [| CROSSTALK (PIN #3 g 100 TR AT rt = 100 PS LITy) FLoatina) f [7 c NL TeL CROSSTALK | | |! a hs STH : 2 80 rh ttt t 3 80 Ps 2 | g peat 3 Me SNE & | OFF sotaTion PAT & va tsy Ho a) TT Tien I g SP ve aay 8 : lt a Ta = 28C Pr | . CROSSTALK Ri = 1MQ, CL = 10pF, anni : we 40 Vg = BV AMS, Roy (SWITCH 7) = % 40 : i 30082, Very = +8 ; OFF ISOLATION (PIN #3 FLOATING) : . CROSSTALK: RL =1M1?, C, =10pF, Vg=s' an OFF ISOLATION AL = 1k0 Fao Laws, Rontswirch#78}~30001, veye sv {tld 7 ot = rr Ss = 5V RMS, + OFF ISOLATION: RI =1K(). CL=t0pF, ' = +0. wn g=5V AMS, Vex = +0.4 eM ~ 4 SN AE EN . 1k 10k 100k 1M 10M 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY [Hz} MUX-16 DYNAMIC CHARACTERISTIC CURVES SMALL-SIGNAL SWITCHING WITH FILTERING SMALL-SIGNAL SWITCHING Ru = 1MQ, CL = 10pF, V1 = 500mvV, RL = 1M, CL = SODpF, V1 = -500mvV, V46 = +500mV Vie = +500mV SMALL-SIGNAL SWITCHING WITH FILTERING AND BREAK-BEFORE-MAKE 2us SAMPLE TIME SWITCHING AL = 1MQ, CL = SOOpF, V1 = 700mvV, RL = 1k, CL = 10pF, Vy = Vyg = +10V Vie = +700mv u be mer. a = M16 NOTE: Top Waveforms: Digital Input 5V/Div Bottom Waveforms: Multiplexer Output (Vp) INPUT BIAS CURRENT (uA) DIGITAL INPUT BIAS CURRENTS vs TEMPERATURE (T 5 TT | V+ = +15V - 4 V- = -15V | ab Ven =0.4v topo | | | 1 {4 3 = +. + | 4 lM 4 = 4 | NOTE: (yx, (EN) PLOTTED SINCE OTHER | DIGITAL INPUT CURRENTS ARE __ | LESS. oe_Li tl ti jt | -60 -20 O 20 60 100 14 TEMPERATURE (C) SMALL-SIGNAL SWITCHING WITH 28 SAMPLE TIME Rv = 1MQ, Cy = 10pF, V1 = -700mV, Vig = +700mVv LARGE-SIGNAL SWITCHING RL = 1MQ, GL = 10pF, V1 = 10V, Vig = +10V 13-58 8/89, Rev.PMD) MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS MUX-28 DYNAMIC CHARACTERISTIC CURVES SMALL-SIGNAL SWITCHING SMALL-SIGNAL SWITCHING SMALL-SIGNAL SWITCHING WITH FILTERING WITH 2us SAMPLE TIME RL = 1M&, CL = 10pF, V1 = -500mv, Vg = +500mv RL = MO, CL = 500pF, V4 = 800mv, Vg = +500mV Ri = 1MQ, Cy = WpF, V1 = 700mv, Vg = +700mV SMALL-SIGNAL SWITCHING WITH FILTERING BREAK-BEFORE-MAKE AND 2.53 SAMPLE TIME SWITCHING LARGE-SIGNAL SWITCHING Ay = 1K, Cy = pF, Vy = Vg = +10V RL = IM&, CL = 5ODpF, V1 = 700mV, Vg = +700mV RL = 1MQ, CL = 10pF, V1 = -10V, Vg = +10V NOTE: op Waveforms: Digital Input 5V/Div sottom Waveforms: Multiplexer Output (Vp) YPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, unless otherwise noted.) TRANSITION TIME ENABLE DELAY TIME vs TEMPERATURE vs TEMPERATURE ANALOG SWITCHES /MULTIPLEXERS w a Vt = +15V V- = -15V Vg = -SV TIME (uSEC) > oR ON a SS & TIME (uSEC) o 2 a o : 60 -20 G6 20 @0 100 40 0 -20 9 2 sO 100 140 TEMPERATURE (C) TEMPERATURE (C) 13-59 8/89, Rev. A2PMD MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS A.C. TEST CIRCUITS TRANSITION TIME TEST CIRCUIT SWITCHING TIME WAVEFORMS a Ve +5VO-IEN MUX-16 EN (MUX:28) og VS! 8 visi OTN) sisal oo vy wire q ABINC) $9--Sa5 OUTPUT a2 S2a-S7ay -O- = Vb 0 $1B-Sep: {SEE FIGURE 1.) Sie(Sgall- - 0 V16 Al 0.8VS16 AO DiDal-- - vsi6 SNO La 8 |. TRANSITION >] s8 ON TRANSITION | Loaic | 1 fe (put, STON (LH! INPUT ag 808 io F { ma Te *) ton {En} tott (En) = = b-asv a 0 0.1 Vor () DENOTES MUX-28 CONNECTIONS switch 1 OUTPUT Figure vo (SEE FIGURE 2) 09 VoL Vo ENABLE DELAY TIME TEST CIRCUIT vgl pe Vb SWITCH ve OUTPUT 50% | J EN MUX-16 Vo | Neto, ass (SEE FIGURE 3.) ! | BI sustalbho V1 \ \ A3(NC) | | be topen 1 A2 82 a8 2a Saa yf OF at (S5-se0) 35v aa (0B) [ GND v- LOGIC INPUT ego, = Re cL (Ax, Enl Logic 502 1 10 (NPUT ke [* D = TST Tt = wT ST > () DENOTES MUX.28 CONNECTIONS Figure 2 BREAK-BEFORE-MAKE TEST CIRCUIT OFF ISOLATION TEST CIRCUIT IVsl ae +15V ISOo fF = 20 tog ~ ALL CHANNELS Vol vt ARE OFF Vig *SVOJEN MUX16 sit O-INCIDA) $9! 51g V1, 16 S14-S8A o NC(DB) oMt, +0.4V en (S\A7% S16(Sgalf-- oO 3 1BS78 A A3(NC) MUX-16 O]A2 (MUX-28} A2 $2-S15 | ar (S2ASAyPO~ al 1BSgB; Vb AO AG B(Da)+ v - Sa(Sge! O/B) GND = a o GND ve L , Locic 5002 1 10 V8 a INPUT ko I pF SW g 8002 Xe - L a avt +t ot Ring _asv Figure 3 () DENOTES MUX.28 CONNECTIONS Figure 4 {) DENOTES MUX-28 CONNECTIONS 13-60 8/89, Rev.CROSSTALK MEASUREMENT CIRCUIT MUX-16/MUX-26 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS OVERVOLTAGE MEASUREMENT TEST CIRCUIT VW, vt my Cy = 201g Vs! ; CHANNEL Mol L 7ISON vt ve +5VO1 EN see Ee VenO- En S816(SBa) - ofa) (SYA S88 +0.4V0 A3INC) -_-} NC[DB) $1-Si5 (S14 $70 +5VOA2 MUX-16 ] AJ/NC) \S18~-San. +5V0oJal (MUX-28) a2 +0.4V O_4 AOD v AM O(Da) Sg{Sap) =: D(DB) : ro GND v- IMQ GND ve Vg | | RL et E IBV 2 5082 1 r0pr < Ima _ =v. RMs' L mo T => = = = a = + + ve = Lt = Figure 5 (} DENOTES MUX-28 CONNECTIONS () DENOTES MUX-28 CONNECTIONS APPLICATIONS INFORMATION OVERVOLTAGE V-! CHARACTERISTIC These analog muitiplexers employ ion-implanted JFETs ina switch configuration designed to assure break-before-make ~T TT (B.B.M.) action. The turn-off time is much faster than the a | turn-on time to guarantee B.B.M. over the full operating 15 TEN nd { temperature and input voltage range. Fabricated with JFET processing rather than CMCS, special handling is not tol iy aa necessary to prevent damage to this multiplexer. Because the digital inputs only require a 2.0V logic 1 input level, power- re | consuming pullup resistors are not required for TTL compat- a t | ibility to insure break-before-make switching as is most often | the case with CMOS multiplexers. The digital inputs utilize of PNP input transistors where input current is maximum at the POSITIVE Va CURVE: E= 15V logic O level and drops to that of a reverse-biased diode 5 NEGATIVE Va CURVE: E = +10V (about 10nA) as the input voltage is raised above = 1.4V. 80-3 +10 G10 20 50 Va (VOLTS) The ON resistance, Ron of the analog switches is constant over the wide input voltage range of -15V to +11V with Vsupp.y= + 15V. The overvoltage and supply-loss V-I charac- teristics shown indicate typical performance when the multi- plexer is subjected to abnormal signals. For normal operation, however, positive input voltages should be restricted to 11V (or 4V less than the positive supply). This assures that the Vas of an OFF FET switch remains greater than its Vp, preventing that channel from being falsely turned ON. When operating with negative input voltages, the gate-to- shannel diode will be turned on if the voltage drop across an IN switch exceeds 0.6V. While this condition will cause an srror in the output, it will not damage the switch. In lab tests, he multiplexer output has been loaded with a 0.01uF capaci- or in the circuit of Figure 1. With V;=-10V and Vig= + 10V, the ogic input was driven at a 1kHz rate. The positive-going slew ate was 0.3W/ySec which is equivalent to a normal Ipgs of mA. The negative-going slew rate was 0.7V/usec which is quivalent to a reverse Ipss of 7MA. Note that when switch ne (1) is first turned ON it has a drop of -20V across its 3rminals. In spite of that fact, the current is limited to pproximately twice its normal Ipgs. SUPPLY-LOSS V-I CHARACTERISTIC tp (mA) TTT | Vt=Vv=0V Ven | OV 18 Tas 25C E=-10V 10}+-- 5 -10 -8 6 4 -2 0 2 4 64 8 Va {VOLTS) 13-61 8/89, Rev. A2 ANALOG SWITCHES/MULTIPLEXERS el,MUX-16/MUX-28 16-CHANNEL/DUAL 8-CHANNEL JFET ANALOG MULTIPLEXERS SIMPLIFIED SCHEMATIC (MUX-16) be} PO tyeicat N SWITCH ) CELL OOOOO $ < OF , f) x 5 i \ 1 po | I ! I . ! . Lo | 6 I oe? aE DECODING MATRIX > < h e+ { { i . FOR MUX-28 SWITCH PAIRS S, Sg, Sz Syg,-- - Sg $4g ARE TURNED ON BY A REPROGRAMMED DECOOING MATRIX AND Aq |S NO LONGER USED. THE COMMON ANALOG BUS IS SPLIT IN HALF TO PROVIDE (ORAIN B) OUTPUT. b> 2 < HHH 13-62 8/89, Rev. -