scd8502 rev g act8502 48-channel analog multiplexer module radiation tolerant & esd protected features ? 48 channels prov ided by six 16-channel multiplexers ? radiation performance - total dose: 300 krads(si), dose rate = 50 - 300 rads(si)/s - seu: immune up to 120 mev-cm 2 /mg - sel: immune by process design ? full military temperature range ? low power consumption < 90mw ? one address bus (a0-3) and three enable lines ? all channel inputs protected by 20v nominal transorbs ? fast access time 1500ns typical ? break-before-make switching ? high analog input impedance (power on or off) ? designed for aerospace and high reliability space applications ? packaging ? hermetic ceramic - 96 leads, 1.32"sq x .20"ht quad flat pack - typical weight 15 grams ? available on dscc smd 5962-03234 note: aeroflex plainview does not currently have a dscc certified radiation hardened assurance program november 14, 2008 www.aeroflex.com/mux standard products general description aeroflex?s act8502 is a radia tion tolerant, 48 channel multiple xer mcm (multi-chip module) with electrostatic discharge (esd) pr otection on all channel inputs. the act8502 has been specifically designed to meet exposure to radiation en vironments. the multiplexer is available in a 96 lead high temperature co-f ired ceramic (htcc) quad flatpack (cqfp). it is guaranteed operational from -55c to +125c. available screened in accordance with mil-prf-38534, the act8502 is ideal for demandin g military and space applications. organization and application the act8502 consists of six 16 channel multiplexers arranged as shown in the block diagram. the act8502 design is inherently radiation tolerant. the act8502 consists of forty-eight (48) channels addressable by bus a 0 ~a 3 in three 16 channel blocks, each block enabled separately. each block connects th e addressed channel to two outputs, "output" and "current". this technique enable s selecting and reading a remote resistive sensor without the mux resistance being part of the measurement. for grounded sensors, this is done by passing current to the sensor by means of the "current" pin and reading the resultant voltage (proportional to the sensor resistance) at the "output" pin.
2 scd8502 rev g 11/14/08 aeroflex plainview act8502 48 ? channel analog mux block diagram ch 0 ch 15 ? ? ? en 0-15 ch 16 ch 31 ? ? ? en 16-31 current 16-31 a0 a1 a2 a3 output 32-47 current 32-47 output 16-31 current 0-15 ch 32 ch 47 ? ? ? en 32-47 mux 3 mux 5 mux 6 mux 4 16 16 16 16 16 16 16 vr vr vr +v ee -v ee v ref gnd 16 16 output 0-15 mux 2 mux 1
3 scd8502 rev g 11/14/08 aeroflex plainview absolute maximum ratings 1 / parameter range units case operating temperature range -55 to +125 c storage temperature range -55 to +150 c supply voltage +v ee (pin 44) -v ee (pin 46) v ref (pin 48) +20 -20 +20 v v v digital input overvoltage v en (pins 5, 91, 92), v a (pins 1, 3, 95, 93) < v r +4 > gnd -4 v v analog input over voltage v s 18 v notes: 1 / all measurements are made with respect to ground. notice: stresses above those listed under "a bsolute maximums rating" may cause permanent damage to the device. these are stress rating only; functional operation beyond the "oper ation conditions" is not recommended and ex tended exposure beyond the "operation con ditions" may effect device reliability. recommended operat ing conditions 1 / symbol parameter typical units +v ee +15v power supply voltage +15.0 v -v ee -15v power supply voltage -15.0 v v ref reference voltage +5.00 v v al logic low level +0.8 v v ah logic high level +4.0 v notes: 1 / power supply turn-on sequence shall be as follows: +v ee , -v ee , followed by v ref . dc electrical performa nce characteristics 1 / (tc = -55c to +125c, +v ee = +15v, -v ee = -15v, v ref = +5.0v, unless otherwise specified) parameter symbol conditions min max units supply current +i ee v en (0-47) = v a (0-3) = 0 0.3 3 ma -i ee v en (0-47) = v a (0-3) = 0 -3 -0.3 ma +i sby v en (0-47) = 4v, v a (0-3) = 0 6 / 0.3 3 ma -i sby v en (0-47) = 4v, v a (0-3) = 0 6 / -3 -0.3 ma address input current i al (0-3) v a = 0v 1 / -6 6 a i ah (0-3) v a = 5v 1 / -6 6 a enable input current i enl (0-15) v en (0-15) = 0v -2 2 a i enh (0-15) v en (0-15) = 5v -2 2 a i enl (16-31) v en (16-31) = 0v -2 2 a i enh (16-31) v en (16-31) = 5v -2 2 a i enl (32-47) v en (32-47) = 0v -2 2 a i enh (32-47) v en (32-47) = 5v -2 2 a positive input leakage current ch0-ch47 +i soffoutput v in = +10v, v en = 4v, output and all unused mux inputs under test = -10v 2 /, 3 / -100 +700 na +i soffcurrent -100 +700 na
4 scd8502 rev g 11/14/08 aeroflex plainview negative input leakage current ch0-ch47 -i soffoutput v in = -10v, v en = 4v, output and all unused mux inputs under test = +10v 2 /, 3 / -100 +700 na -i soffcurrent -100 +700 na output leakage current outputs (pins 25, 70 & 68) currents (pins 67 & 69) +i doffoutput v out = +10v, v en = 4v, output and all unused mux inputs under test = -10v 3 /, 4 / -100 +100 na +i doffcurrent -100 +100 na output leakage current outputs (pins 25, 70 & 68) currents (pins 67 & 69) -i doffoutput v out = -10v, v en = 4v, output and all unused mux inputs under test = +10v 3 /, 4 / -100 +100 na -i doffcurrent -100 +100 na input clamped voltage ch0 - ch47 +v clmp (0-47) v en = 4v, all unused mux inputs under test are open. 3 / +25c +125c -55c 18.0 18.0 17.5 23.0 23.5 22.5 v v v input clamped voltage ch0 - ch47 -v clmp (0-47) +25c +125c -55c -23.0 -23.5 -22.5 -18.0 -18.0 -17.5 v v v switch on resistance outputs (pins 25, 70 & 68) r ds ( on ) (0-47) a v in = +15v, v en = 0.8v, i out = -1ma 2 /, 3 /, 5 / 500 3000 r ds ( on ) (0-47) b v in = +5v, v en = 0.8v, i out = -1ma 2 /, 3 /, 5 / 500 3000 r ds ( on ) (0-47) c v in = -5v, v en = 0.8v, i out = +1ma 2 /, 3 /, 5 / 500 3000 switch on resistance currents (pins 26, 67 & 69) r ds ( on ) (0-47) a v in = +15v, v en = 0.8v, i out = -1ma 2 /, 3 /, 5 / 500 3000 r ds ( on ) (0-47) b v in = +5v, v en = 0.8v, i out = -1ma 2 /, 3 /, 5 / 500 3000 r ds ( on ) (0-47) c v in = -5v, v en = 0.8v, i out = +1ma 2 /, 3 /, 5 / 500 3000 notes: 1 / measure inputs sequentially. ground all unused inputs of the mux under test. va is the applied input voltage to the muxes? a ddress lines a(0-3). 2 / v in is the applied input voltage to the muxes? input channel ch0-ch47. 3/ v en is the applied input voltage to the muxes? enable line en(0-15), en(16-31) and en(32-47). 4 / v out is the applied input voltage to the muxes? output line ou tput(0-15), output(16-31), output(32-47), current(0-15) , current(16-31) and current(32-47). 5 / negative current is the current flowing out of each of the mu x pins. positive current is the current flowing into each mux p in. 6 / if not tested, shall be guaranteed to the specified limits. switching characteristics (tc = -55c to +125c, +v ee = +15v, -v ee = -15v, v ref = +5.0v, unless otherwise specified) parameter symbol conditions min max units switching test mux t a hl r l = 10k , c l = 50pf 10 1500 ns t a lh r l = 10k , c l = 50pf tc = +25c, +125c tc = -55c 10 10 2000 5000 ns ns t on en r l = 1k , c l = 50pf 10 1500 ns t off en r l = 1k , c l = 50pf 10 1000 ns dc electrical performanc e characteristics 1 / (con?t) (tc = -55c to +125c, +v ee = +15v, -v ee = -15v, v ref = +5.0v, unless otherwise specified) parameter symbol conditions min max units
5 scd8502 rev g 11/14/08 aeroflex plainview truth table (ch0 ? ch15) a3 a2 a1 a0 en(0-15) "on" channel 1 / xxxx h none llll l ch0 lllh l ch1 llhl l ch2 llhh l ch3 lhll l ch4 lhlh l ch5 lhhl l ch6 lhhh l ch7 hlll l ch8 hllh l ch9 hlhl l ch10 hlhh l ch11 h h l l l ch12 h h l h l ch13 hhhl l ch14 hhhh l ch15 1 / between ch0-15 and output (0-15) and current (0-15). truth table (ch16 ? ch31) a3 a2 a1 a0 en(16-31) "on" channel 1 / xxxx h none llll l ch16 lllh l ch17 l l h l l ch18 l l h h l ch19 l h l l l ch20 lhlh l ch21 l h h l l ch22 lhhh l ch23 hlll l ch24 h l l h l ch25 hlhl l ch26 h l h h l ch27 h h l l l ch28 h h l h l ch29 hhhl l ch30 hhhh l ch31 1 / between ch16-31 and output (16-31) and current (16-31). truth table (ch32 ? ch47) a3 a2 a1 a0 en(32-47) "on" channel 1 / xxxx h none llll l ch32 lllh l ch33 l l h l l ch34 l l h h l ch35 l h l l l ch36 lhlh l ch37 l h h l l ch38 lhhh l ch39 hlll l ch40 h l l h l ch41 hlhl l ch42 h l h h l ch43 h h l l l ch44 h h l h l ch45 hhhl l ch46 hhhh l ch47 1 / between ch32-47 and output (32-47) and current (32-47)
6 scd8502 rev g 11/14/08 aeroflex plainview act8502 switching diagrams 4.0v 50% ~3v to 10.0v 50% 0v t off en t on en definition of t on en and t off en 0.8v 0v 0v 50% 50% 4.0v 0.8v 50% 11.6v min 11.6v min 4.0v address lines t a hl 50% note: f = 10khz, duty cycle = 50%. (a0 - a3) mux output mux output mux output address lines (a0 - a3) en lines t a lh definition of t a hl definition of t a lh 0.8v
7 scd8502 rev g 11/14/08 aeroflex plainview lead numbers & functions act8502 ? 96 leads ceramic quad flat pack pin # function pin # function pin # function 1 a 2 33 ch11 65 ch33 2 nc 34 nc 66 ch32 3 a 3 35 ch12 67 output i(32-47) 4 nc 36 nc 68 output v(32-47) 5 en 0-15 37 ch13 69 output i(16-31) 6 nc 38 nc 70 output v(16-31) 7 ch0 39 ch14 71 gnd 8 nc 40 nc 72 gnd 9 ch1 41 ch15 73 ch31 10 nc 42 nc 74 ch30 11 ch2 43 nc 75 ch29 12 nc 44 +v ee 76 ch28 13 ch3 45 nc 77 ch27 14 nc 46 -v ee 78 ch26 15 ch4 47 nc 79 ch25 16 nc 48 v ref 80 ch24 17 ch5 49 nc 81 ch23 18 nc 50 case gnd 82 ch22 19 ch6 51 ch47 83 ch21 20 nc 52 ch46 84 ch20 21 ch7 53 ch45 85 ch19 22 nc 54 ch44 86 ch18 23 gnd 55 ch43 87 ch17 24 gnd 56 ch42 88 ch16 25 output v(0-15) 57 ch41 89 gnd 26 output i(0-15) 58 ch40 90 gnd 27 ch8 59 ch39 91 en 32-47 28 nc 60 ch38 92 en 16-31 29 ch9 61 ch37 93 a 0 30 nc 62 ch36 94 nc 31 ch10 63 ch35 95 a 1 32 nc 64 ch34 96 nc note: it is recommended that all "nc" or "no connect pin", be grounded. this eliminates or minimizes any esd or static buildup.
8 plainview, new york toll free: 800-the-1553 fax: 516-694-6715 se and mid-atlantic tel: 321-951-4164 fax: 321-951-4254 international tel: 805-778-9229 fax: 805-778-1980 west coast tel: 949-362-2260 fax: 949-362-2266 northeast tel: 603-888-3975 fax: 603-888-4585 central tel: 719-594-8017 fax: 719-594-8468 www.aeroflex.com info-ams@aeroflex.com aeroflex microelectronic solutions reserves the right to change at any time without notice the specifications, design, function, or form of its products described herein. all parameters must be validated for each customer's application by engineering. no liability is assumed as a result of use of this product. no patent licenses are implied. our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused scd8502 rev g 11/14/08 export control: export warning: this product is controlled for expor t under the international traffic in arms regulations (itar). a license from the u.s. department of state is required prior to the export of this product from the united states. aeroflex?s military and space pr oducts are controlled for export under the international traffic in arms regulations (itar) and may not be sold or proposed or offered for sale to certain countries. (see itar 126.1 for complete information.) 1.320 sq pin 85 pin 12 pin 60 pin 37 pin 13 pin 36 pin 61 pin 84 pin 1 flat package outline max .0165 .003 .200 max .400 note : outside ceramic tie bars not shown for clarity. contact factory for details. .006 .001 (23 spaces at .050) tol non-cum 4 sides 1.150 .005 ordering information model number screening dscc smd # package ACT8502-S military temperature, -55c to +125c, compliant to mil-prf-38534 class k 5962-0323401kxc quad flat pack act8502-7 commercial flow, +25c testing only -
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