ANALOG 16-Channel/Dual 8-Channel JFET DEVICES Analog Multiplexers (Overvoltage Protected) MUX-16/MUX-28 FEATURES 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 125 C 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 Available in Die Form ORDERING INFORMATION ! PACKAGE OPERATING 25C CERDIP Loc PLASTIC. TEMPERATURE RESISTANCE 28-PIN 28-CONTACT 28-PIN RANGE 2902 + _MUXI6AT* - - MIL 2902 + MUX16ET - - IND 4002 MUX16BT* MUXi6BTC/883 - MIL 4002 MUX16FT - MUX16FP XIND 4002 - - MUX16FPC XIND 2902 = MUX28AT* - - MIL 2902 = MUX28ET - - IND 4002 - MUX26BT* MUX28BTCv/883 - Mi 4002 MUX28FT - MUX28FP XIND 4002 - - MUX28FPC XIND * For devices processed in total compliance to MIL-STD-883, add /883 after part number. Consult factory for 883 data sheet. t Burn-in is available on commercial and industrial temperature range parts in CerDIP, plastic DIP, and TO-can packages. FUNCTIONAL DIAGRAMS MUX-16 1 OF 16 DECODERS DRAIN Sg Sig Siz Sta S13 S14 S15 Sue REV.A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. GENERAL DESCRIPTION The MUX-16 is a monolithic 16-channel analog multiplexer 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-JUFET 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 latch-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-28 DRAINA S1a S2a S30 Saa Ssa Sea S7a Sea 1 OF 8 DECODERS DRAIN 8 Sip Sop S3p Sap See See S7p Sep One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 Twx: 710/394-6577 Telex: 924491 Cable: ANALOG NORWOODMASSMUX-16/MUX-28 PIN CONNECTIONS & TRUTH TABLES Vs a _ [28] DRAIN Ve a nc. [2 [27] v- DRAINS [2 nec. [a] [26] SB nc. [2] sie [a] Fas] $7 see [a] sis [a] Fase 28-PINPLASTICDIP sa co MUX-16BTC/883 1s [al fas] 8 (P-Suffix) soe Gl Lec $13 - $4 $58 C-Suffix ce] MUX16 SS 28PINCERDIP Ss myLee sit [3] [20] sz (T-Suffix) s38 [2 | . sio [Lo 49] $1 s2B fio (PC-Suffix) so [i [is] ENABLE sip [i] ano [72 rr) eno [2] nc. [ia] ie] At we. [13] a3 [al 15] A2 nec. [ia] MUX-16 ON TON "ON" 3 7 A, A, A, A, EN CHANNEL A, A, A, A, EN CHANNEL A, A, A, EN CHANNEL BYEses 8 X X X X L NONE HULL H 9 Lets Tz qs Tee} lez] les} Xx X X L NONE tL LLL H 1 HL LH H 10 LLLOH 1 MUX-28BTC/883 LL LHH 2 HLHL LL HLH 4 " L L H H 2 LCC . 3 HL HH H 12 HLH 3 (TC-Suffix) LoL HH H 4 H HLL H 13 Da A 4 PLCC L HLL H 5 HHL HH 14 (PC-Suffix) HLL H 5 L HLH H 6 H HHL H 15 H tL H H 6 L HHL H 7 H HHH H 16 HHL H 7 L HHH H 8 HHH H 8 ABSOLUTE MAXIMUM RATINGS (Note 1) . Operating Temperature Range, Maximum Current Through Any Pin .........c:cesscsecceee 25mA MUX-1 6/28-AT, BT, BIG .....ccsssseccsssersensseee 55C to +125C PACKAGE TYPE Si, (Note 2) % UNITS MUX-16/28-ET ............00 ... 25C to +85C - - MUX-16/28-FP, FPC, FT... .. 40C to +85C 26-Pin Hermetic DIP (1) 55 15 CW Junction Temperature Uy ee ..-65C to +150C 28-Pin Plastic DIP (P) 56 30 CW Storage Temperature Range ..........ccescees -~65C to +150C 28-Contact LCC (TC) & 3 C Lead Temperature (Soldering, 60 S@C) ..........scessscseesceeee 300C 28-Contact PLCC (PC) 70 33 C Maximum Junction Temperature .............c00 seseeseese ener 150C NOTES: V+ Supply to V Supply 00... eccssseeetesceseceecesentenerereees 36V 1. Ratings apply to both DICE and packaged parts, unless otherwise noted. j 2. @, is specified for worst case mounting conditions, i.e., @., is specified for ce eeaeeessesseoaseneeeneaes ~ jA pose np ut Voltage (V or -4V) to V+ Supply device i in socket for CerDIP, P-DIP, and LCC packages; :@n is specified for nalog Input Voltage........ V Supply 20V to V+ Supply +20V device soldered to printed circuit board for PLCC package. ELECTRICAL CHARACTERISTICS at Vs = + 15V and Ta = 25C, unless otherwise noted. MUX-16A/E MUX-16B/F MUX-28A/E MUX-28B/F PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX UNITS ON Resistance Ron Vg < 10V, ig = 200A 290 380 400 580 Qa AR on With Applied Voltage ARon -10V S$ Vg 5 10V, 1g = 200nA _ 15 5 _ 1.5 5 % Ron Match Between Switches Ron Match Vg = OV, Ig = 200nA _ 7 15 _ 9 20 % / ; +10 +11 +10 +11 Analog Voltage Range Va (Note 6} 10-45 _ 10-15 v Source Current (Switch OFF) lg (OFF; Vg = 10V, Vp = -10V (Note 1) 0.01 1 _ 0.01 2 _ nA _ . wneen _ _ MUX-16 02 1 02 2 Drain Current (Switch OFF} Ip (OFF) Vg = 10V, Vp = -10V (Note 1) MUX-28 _ 0.1 1 _ 04 9 nA . Ip (ON MUX-16 02 1 02 2 Leakage Current (Switch ON) a ON) Vp = 10V Note 1) MUX-28 of 1 _ 94 9 nA Digital Input Current lin Vin = 0.4V to 15V _ 1 10 _ 1 10 LA 2- REV. AMUX-16/MUX-28 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 "O" Enable Current Te (EN) Ven = 0.4V - 4 10 - 4 10 pA Digital Input Capacitance Cols - 3 - - 3 - pF t (Notes 2,5) Figure 1 - 1.4 20 - 1.8 2.5 PHL Switching Time (tran) ain (Test Circuits) - 12 18 - 16 22 us 10V Step to 0.10% - 2.6 - - 2.7 - Output Settling Time t, 10V Step to 0.05% - 3.2 - ad 3.4 - us 10V Step to 0.02% - 4.0 - - 7.2 - Break-Before-Make Delay topen Figure 3 - 0.7 - - 1 - us 'ONN (Note 5) Figure 2 _ _ Enable Delay "ON ton een (Test Circuits) 1 2 1.2 2.5 us a . (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 " " : (Note 4) Figure 4 _ _ _ _ OFF" Isolation SOocr (Test Circuits) 66 66 dB (Note 3) Figure 5 _ _ _ - Crosstalk CT (Test Circuits) 76 75 dB . Switch "OFF, Source Capacitance Cy (OFF) Vg =0V, Vp =0V - 2.5 - - 2.5 - pF . . Switch OFF, MUX-16 - 13 - - 13 - = Drain Capacitance Cy (OFF) Vg = OV, Vp = OV MUX-28 - 8 - - 8 7 Pp Input to Output Capacitance Cy, (OFF) (Note 4) - 0.15 - - 0.15 = pF Positive Supply Current V+=15V MUX-16 ~ 15 19 ~ 9 19 on MUX-28 - 15 19 - 8 19 (All Digital Inputs I+ mA Logic "0" or *1") V+ = 5V MUX-16 ~ 12 ~ 8 MUX-28 - 12 - - 7 - Negative Supply Current V-=-15V Musee - : ? ~ a8 (All Digital Inputs Ie mA Logic O" or "1") V-=~5V MUX-16 - 4 - - 3 _ MUX-28 - 4 - - 2.5 = NOTES: 4. "OFF" isolation is measured by driving channel 8 (8B) with ALL channels OFF. 1. Conditions applied to leakage tests insure worst case leakages. RL = 1kQ, C. = 10pF, Vg = 5VRMS, f = 500kHz. Cos is computed from the OFF 2. AR, = 10MQ, Cc = T0pF. isolation measurement. 3. Crosstalk is measured by driving channel 8 (8B*) with channe! 7 (7B*) ON. 5. Sample tested. R, = 1MQ, C, = 10pF, V, = SV RMS, f = SOOkHz. 6. Guaranteed by leakage current and R,, , tests. ELECTRICAL CHARACTERISTICS atV, =+15V,-55C sT, = +125C for MUX-16AT/BT/BTC and MUX-28AT/BT/BTC; 25C s T, s+85C for MUX-16ET and MUX-28ET; ~40C s T, s +85C for MUX-16 FT/FP/FPC and MUX-28FT/FP/FPC, 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 < 10,1, < 200A - - 500 - ~- 800 Q AR, With Applied Vollage ARG, ~10V <V, < 10V, 1, = 200A - 2 - - 5.5 ~ % Ron Match Between Switches R,,,Match Vg = OV, 1, = 200pA - 10 - - 15 ~ % Analog Voltage Range Ve (Note 6) "6 oe - "We a ~ Vv Source Current (Switch"OFF") I; (OFF) Vg = 10V, Vp) =10V (Note 1) - - 25 ~ - 50 nA Drain Current (Switch "OFF") 1, (OFF) Vg = 10V, Vp = 10V (Note 1) - - 75 - - 250 nA own Sy Yo toviaten - o> eo Digital "1" Input Voltage Vin (Note 6) 2 - - 2 - - Vv Digital "0" input Voltage Vint (Note 6) - - 0.7 - ~ 0.7 Vv Digital Input Current Iw Vin = 0.4V to 15V - - 20 - - 20 pA Digital "0" Enable Current Wee (EN) Ven = 0.4V - - 20 - - 20 pA Positive Supply Current I+ All Digital Inputs Logic "0" or "1" - - 24 - - 24 mA Negative Supply Current I- All Digital inputs Logic "0" or "1" - - 8.2 - - 8.2 mA REV. A -3-MUX-16/MUX-28 MUX-16 DICE CHARACTERISTICS (125C TESTED DICE AVAILABLE) MUX-28 DIE SIZE 0.110 X 0.076 inch, 8360 sq. mils (2.794 X 1.930 mm, 5392 sq. mm) 1. POSITIVE SUPPLY 17. ADDRESS BIT 0 (AO) 1. POSITIVE SUPPLY 17. ADDRESS BIT 0 (A0) 4. SOURCE 16 ($16) 18, ENABLE 2. DRAINB 18. ENABLE 5. SOURCE 15 (S15) 19. SOURCE 1 (S1) 4. SOURCE 8 (S8B) 19. SOURCE 1 (S1A) 6. SOURCE 14 (S14) 20. SOURCE 2 (S2) 5. SOURCE 7 (S7B) 20. SOURCE 2 (S2A) 7. SOURCE 13 (513) 21. SOURCE 3 (S3) 6. SOURCE 6 (S6B) 21. SOURCE 3 (S3A) 8. SOURCE 12 ($12) 22. SOURCE 4 ($4) 7. SOURCE 5 (S5B) 22. SOURCE 4 (S4A) 9. SOURCE 11 (S11) 23. SOURCE 5 ($5) 8. SOURCE 4 ($4B) 23. SOURCE 5 (S5A) 10. SOURCE 10 ($10) 24. SOURCE 6 (S6) 9. SOURCE 3 ($3B) 24. SOURCE 6 (S6A) 11. SOURCE 9 (S9) 25. SOURCE 7 (S7) 40. SOURCE 2 (S2B) 25. SOURCE 7 (S7A) 12, GROUND 26. SOURCE 8 (S8) 11. SOURCE 1 ($18) 26. SOURCE 8 (S8A) 14. ADDRESS BIT 3(A3) 27. NEGATIVE SUPPLY (SUBSTRATE) 12, GROUND 27. NEGATIVE SUPPLY (SUBSTRATE) 15. ADDRESS BIT2(A2) 28. DRAIN 15, ADDRESS BIT 2(A2) 28. DRAINA 16. ADDRESS BIT 1 (A1) 16. ADDRESS BIT 1 (A1) WAFER TEST LIMITS at V+ = 15V, V-=~15V, Tn =25 C for MUX-16/28 N and 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 LIMIT LIMIT LIMIT LIMIT UNITS a a Vg Ov, ON Resistance Ron ig = 200uA 540 380 800 580 0. MAX Digita! 1 Input Voitage VINH 2 2 2 2 V MIN Digital 0 Input Voitage Vine 0.8 0.8 0.8 0.8 V MAX Digital 0 Input Current linc Vin = 0.4V 20 10 20 10 BA MAX Digital O Enable Current NINL(EN) Ven=0.4V 20 10 20 10 pA MAX Positive Suppiy Current (All Digital Inputs Logic 0) I+ 24 19 a4 19 mA MAX Negative Supply Current _ (All Digital Inputs Logic 0) | 8.2 7 8.2 ? mA MAX Analog Input Range Va (Note 2) +10 +10 +10 +10 V MIN NOTE: Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, 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 N and 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 . . . tPHL . 2 1 2.6 1.5 Switching Time (trypan) toy (Note 1) Figure 1 18 0.9 24 14 us Output Settling Time ts 10V Step to 0.1% (Note 1) 2.5 1.5 2.9 1.9 BS Break-Before-Make Delay toPEN (Note 1) Figure 3 (Test Circuits) 0.8 0.8 1 1 Ss Crosstalk CT (Note 1) Figure 5 (Test Circuits) 70 70 70 70 dB AR on With Applied Voltage ARon 10V < Vg = 10V, Ig = 200A 1.5 1.5 1.6 1.5 % Leakage Current (Switch ON) ID (ON) Vp = 10V (Note 1) 20 0.2 20 0.2 nA +1 +11 +11 +11 Analog Input Range Va (Note 2) -15 15 15 15 Vv NOTES: 1. The data shown is extrapolated from measurements made on the 2. Guaranteed by Roy and leakage current tests. packaged devices. 4- REV.AMUX-16/MUX-28 TYPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, unless otherwise noted.) ON RESISTANCE (Ron) vs ANALOG VOLTAGE (V,) Ig = +2004 MUX-16/28 B, F Ig = +200uA MUX-16/28 A, E Ron (2) Vt= +15V V~=15V Ta = 25C 10 -6 2 0 2 6 10 VA (VOLTS) Ron vs TEMPERATURE (T) V+t=+15V MUX- B,F MUX-16/28 A,E Ron (2) 60 -20 0 20 60 100 140 TEMPERATURE (C) SWITCH LEAKAGE CURRENTS vs TEMPERATURE V+=+15V V=--15V Ip(ON) + 's(ON) Ip (OFF) Ig (OFF) SWITCH LEAKAGE CURRENT (nA) ~50 -25 Qo 25 50 75 100 125 TEMPERATURE (C} REV. A Ron (2) SWITCH LEAKAGE CURRENT (nA) Ig (ma) Ron vs SWITCH VOLTAGE (Vsp) 600 Vt = +15V MUX-16/28 B, F 500 400 MUX-16/28 A, E 300 200 100 800 ~400 oO 400 800 1200 Vgp (mv) MUX-16 SWITCH LEAKAGE CURRENTS vs ANALOG INPUT VOLTAGE (Va) Va = +18V V- = -15V Ta = 25C tp (OFF) Ig (OFF) bp (ON) -15 -10 5 0 5 10 15 20 Va (VOLTS) SUPPLY CURRENTS vs TEMPERATURE (T) Tf Vt = +15V 24 V- = -15V ~ it 20 _ MUX-16/28 A,E ~ 16 = Po, 2 + bane MUX-16/28 B,F sbi MUX-16/28 A,F 4 L r MUX-16/28 B,F 0 L 60 20 0 2 60 100 140 TEMPERATURE (C) Ron (2) SWITCH LEAKAGE CURRENT (nA) CAPACITANCE (pF) Ron vs SWITCH CURRENT (Is) 600 V+= +15V MUX 16/28 B, F 500 MUX-16/28 A, E 200 100 2000 1000 o 1000 2000 Ig (A) MUX-28 SWITCH LEAKAGE CURRENTS vs ANALOG INPUT VOLTAGE (Va) +1 15V Ig (OFF) -15 -10 -5 Q 5 10 15 20 ANALOG INPUT VOLTAGE (Va) SWITCH CAPACITANCES vs ANALOG INPUT VOLTAGE (Va) V+ = +1BV CpiOn) V- = -15V Ty = 25C CplOFF) Cp(OFF) Cg(OFF) -10 -8 -&@ +4 -2 O 2 4 6 8 10 ANALOG INPUT VOLTAGE (Va)MUX-16/MUX-28 TYPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, unless otherwise noted.} MUX-16 MUX-28 OFF PERFORMANCE OF OFF PERFORMANCE OF CHANNEL 8 CHANNEL 8 & 140 TTT 111 ge 4 tro tom = V+ = +15V 3 CROSSTALK (PIN #3 GROUNDED) | | II 2 120 Nloee tH = 120 OFF ISOLATION (PIN #3 BE NON KONA GROUNDED) | | || 3 MN ill 2 SAI LETT CROSSTALK (PIN #3 2 100 i 2 100 PS s NN TT s ny x LI FLOATING) x NTR CROSSTALK c Pau AUT a9 NS Say KN Fa 2 S Mm 2 hs l MN NN Ee OFF ISOLATION [~X\ TW E V+ = 15V mM MIT g 60 rit L tended < soly_ 1sy ml 8 HE LTT N 8 ve = 538 ENTIN CROSSTALK RL = 1MQ, CL = 10pF, ra | AC | HY w 40F V5 = 5V RMS, Rosy(SWITCH #7) = Ce 3000, Vey = #5 OFF ISOLATION (PIN #3 FLOATING) CROSSTALK: RL=1M0), CL =10pF, Vg=5 & 20 OFF ISOLATION RL = 1k82, > 20 RMS, Ron(SWITCH#7B)=3000, Vey=+5V +4 | CL = 10pF, Vg = 5V RMS, | OFF ISOLATION: RL=1K22, CL=10pF, a Vey = 10.4V a Vg=5V RMS, Veq = +0.4V > Oo Pe > 0 FET Ss a rT eT 1k 10k 100k 1M 10M 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz) MUX-16 DYNAMIC CHARACTERISTIC CURVES SMALL-SIGNAL SWITCHING _ WITHFILTERING _ fi Oey: zi A y SMALL-SIGNAL SWITCHING _ Ean RL = 1MQ, CL = TOpF, V1 = -500mv, RL = 1MQ, C_ = 500pF, V4 = -500mV, V16 = +500mV V1g6 = +500mV SMALL-SIGNAL SWITCHING WITH FILTERING AND BREAK-BEFORE-MAKE __ SWITCHING ; 2us SAMPLE TIME _ RL = 1MQ, CL = 500pF, V1 = 700mV, Vig = +700mV RL = 1k, CL = 10pF, Vy = V4g 2 +10V 16 = +700m NOTE: Top Waveforms: Digital Input 5V/Div Bottom Waveforms: Multiplexer Output (Vp) INPUT BIAS CURRENT (uA) DIGITAL INPUT BIAS CURRENTS vs TEMPERATURE (T) TT Po V+ = +15V V- = -15 ab Ven = 04V, ms 3 NSN <i mM NN 2 ML ~ 1 NOTE: NL(EN) PLOTTED SINCE OTHER | | DIGITAL INPUT CURRENTS ARE __ | LESS, petit | ji | | | ft | -60 -20 0 20 60 100 140 TEMPERATURE (C) SMALL-SIGNAL SWITCHING __ WITH 2us SAMPLE TIME Ry = 1MQ, CL = 10pF, V1 = 700mvV, V16 = +700mV LARGE-SIGNAL SWITCHING RL = 1MQ, CL = 10pF, V1 = -10V, Vig = +10V REV. AMUX-16/MUX-28 MUX-28 DYNAMIC CHARACTERISTIC CURVES 7 i 4 RL = 1M2, CL = 10pF, V1 = -500mvV, Vg = +500mV SMALL-SIGNAL SWITCHING WITH FILTERING AND 2.5us SAMPLE TIME ee eo RL = 1MQ, CL = SOOpF, V1 = 700mV, Vg = +700mV NOTE: Top Waveforms: Digital Input 5V/Div Bottom Waveforms: Multiplexer Output (Vp) SMALL-SIGNAL SWITCHING __ WITH 2us SAMPLE TIME SMALL-SIGNAL SWITCHING a oa RL = 1MQ, CL = 10pF, V1 = 700mv, Vg = +700mV RL = 1MQ, CL = 500pF, V1 = 500mV, Vg = +500mV BREAK-BEFORE-MAKE SWITCHING LARGE-SIGNAL SWITCHING Ry = 1K, CL = 10pF, Vy = Vg =+10V RL = IMQ, CL = 10pF, V1 = 10V, Vg = +10V TYPICAL PERFORMANCE CHARACTERISTICS (apply to all grades, unless otherwise noted.) TRANSITION TIME ENABLE DELAY TIME vs TEMPERATURE vs TEMPERATURE 35 | T 3.5 V+ = +16V V+ = +15V 3.0 Po ty 307 y= 15 Vg = -5V 2.5 2.5 3 g - 20 = @ 20 & a w w Let 2 = 15 4 = 18 - a] 1.0 1.0 05 0.5 o Q 60 -20 0 20 60 100 140 60 20 @ 20 60 100 140 TEMPERATURE (C) REV. A TEMPERATURE (C)MUX-16/MUX-28 A.C. TEST CIRCUITS TRANSITION TIME TEST CIRCUIT SWITCHING TIME WAVEFORMS V+ +V0 MUX-16 EN (MUx.28) og VS! 8 vst NC(DB) S1S1A}E-O V1 SWITCH ABINC) g5_S15 OUTPUT S2A-S7A\ Vb 0 4 a2 Z (sie-sae! (SEE FIGURE 1.) Al S16(Sga) 0.8Vs16 AO DiDa} vsi6 q GND v= TRANSITION $8 ON > TRANSITION tpHL) STON tC LoGic (- 502 ( ) (PLH) toff (En) = = = 18v 0 07 Vob ; {) DENOTES MUX-28 CONNECTIONS SWITCH Figure 1 OUTPUT Vo (SEE FIGURE 2.) 09 VoL Vor ENABLE DELAY TIME TEST CIRCUIT vs L ion Vb ae SWITCH vt OUTPUT 50% | EN MUX-18 Vo | wow (MUX-28) (SEE FIGURE 3.) o{NEWPB) saisia)bo va | | A3(NC) | | 2 *toPEN | 52 ma 2ASBA\ Al (2 see) 3.9V ( AO D(DB) GND v LOGIC INPUT gq%, | LoGic (Ax. En] input CY 500 0 = => FT = bv () DENOTES MUX-28 CONNECTIONS Figure 2 BREAK-BEFORE-MAKE TEST CIRCUIT OFF ISOLATION TEST CIRCUIT +15V Iso = 20 lo sl t +15V OFF g \V | ALL CHANNELS D Ve ARE OFF V 58) +5VOEnN MUX-16 $y OFNCIDA) $9-S16 (MUX-28) v4, 16 (S1A-S8a O_NC (Dp) ' +04VO-FEN U'sig-S3p. $16(Sga) a3 A3(NC} MUX-16 O-FA2 (MUX-28) a2 S2-S15 a SS) am 1B-S8B AQ AO DIDA) A Sg(SgB) _DIDB) gre vz GND v- Ri Vs Locic 502 1 BY 500 INPUT > amg kQ ia = >= = ey = = 18v = Figure 3 () DENOTES MUX-28 CONNECTIONS Figure 4 () DENOTES MUX-28 CONNECTIONS , _g- REV,MUX-16/MUX-28 CROSSTALK MEASUREMENT CIRCUIT OVERVOLTAGE MEASUREMENT TEST CIRCUIT +15V IVs| i Cy = 20log CHANNEL IVD! 71S ON V+ 51S. 5V E 137 ew _dne. (srstset 1A-S8A - DA) (S\p-s30) +0.4V0| AS(NG) +5VOJ A2 MUX-16 +5Vo{ar (MUX-28) +0,4V 0-4 AO Sg(Sgp) D{DB) GND v- Vs BY 2 502 502 RMS = = = bv > = = (] DENOTES MUX.28 CONNECTIONS Figure 5 . V+ S16(Sga) Ven O|En NC(DB) = $4-$15 (S14-87A) A3(NC) \S1BSgp. A2 Al D(Da) AO 1MQ GND Vv- I IL- Hk ilk-|I (} DENOTES MUX-28 CONNECTIONS APPLICATIONS INFORMATION These analog multiplexers employ ion-implanted JFETs ina switch configuration designed to.assure break-before-make (B.B.M.) action. The turn-off time is much faster than the turn-on time to guarantee B.B.M. over the full operating temperature and input voltage range. Fabricated with JFET processing rather than CMOS, special handling is not necessary to prevent damage to this multiplexer. Because the digital inputs only require a 2.0V logic 1 input level, power- consuming puilup resistors are not required for TTL compat- ibility to insure break-before-make switching as is most often the case with CMOS multiplexers. The digital inputs utilize PNP input transistors where input current is maximum at the logic O levei and drops to that of a reverse-biased diode (about 10nA) as the input voltage is raised above = 1.4V. The ON resistance, Ron of the analog switches is constant over the wide input voltage range of -15V to +11V with VsuppLy= + 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 Ves 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- channel diode will be turned on if the voltage drop across an ON switch exceeds 0.6V. While this condition will cause an error in the output, it will not damage the switch. In lab tests, the multiplexer output has been loaded with a 0.014F capaci- tor inthe circuit of Figure 1. With V; =10V and Vig= + 10V, the logic input was driven at a 1kHz rate. The positive-going slew rate was 0.3V/uSec which is equivalent to a normal Ipsg of 3mA. The negative-going slew rate was 0.7VW/usec which is equivalent to a reverse Ipss of 7mA. Note that when switch one (1) is first turned ON it has a drop of 20V across its terminals. In spite of that fact, the current is limited to approximately twice its normal Ipgs. REV. A OVERVOLTAGE V-I CHARACTERISTIC 20 POSITIVE Va CURVE: E = 15V NEGATIVE Va CURVE: E = +10V 5 MN 1 1 1 L i 1 50 30 -10 0 10 30 50 Va, (VOLTS) SUPPLY-LOSS V-I CHARACTERISTIC V+=V=0V Ven = OV EN 18 [ Ta = 25C E=-10V 10 Ip (mA) a 4 10-8 6 4-2 0 2 4 6 8 10 Va (VOLTS)MUX-16/MUX-28 SIMPLIFIED SCHEMATIC (MUX-16) V+ O > Sy Sig i} TYPICAL SWITCH OOOOO ] ] DRAIN o $O OUTPUT VBIAS Vp) En : Zi . Y | I | Ag | DECODING | t MATRIX 1 . . | | | . eo . ! \ ! . . 1 | I . A3 FOR MUX-28 SWITCH PAIRS Sy Sg, Sp $49, - - Sg Stg ARE TURNED ON BY A REPROGRAMMED DECODING MATRIX AND Ag IS NO LONGER USED. THE COMMON ANALOG BUS IS SPLIT IN HALF TO PROVIDE (DRAIN B) OUTPUT. v- = = ~10 REV.A-11-12