1 caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. www.intersil.com or 407-727-9207 | copyright ? intersil corporation 1999 satellite applications flow? (saf) is a trademark of intersil corporation. HS-508ARH-T radiation hardened 8 channel cmos analog multiplexer with overvoltage protection intersils satellite applications flow tm (saf) devices are fully tested and guaranteed to 100krad total dose. this qml class t device is processed to a standard ?ow intended to meet the cost and shorter lead-time needs of large volume satellite manufacturers, while maintaining a high level of reliability. the HS-508ARH-T is a dielectrically isolated, radiation hardened, cmos analog multiplexer incorporating an important feature; it withstands analog input voltages much greater than the supplies. this is essential in any system where the analog inputs originate outside the equipment. they can withstand a continuous input up to 10v greater than either supply, which eliminates the possibility of damage when supplies are off, but input signals are present. equally important, it can withstand brief input transient spikes of several hundred volts; which otherwise would require complex external protection networks. necessarily, on resistance is somewhat higher than similar unprotected devices, but very low leakage current combine to produce low errors. reference application notes 520 and 521, available from the semiconductor products division of intersil, for further information on the HS-508ARH-T multiplexer in general. speci?cations speci?cations for rad hard qml devices are controlled by the defense supply center in columbus (dscc). the smd numbers listed below must be used when ordering. detailed electrical speci?cations for the HS-508ARH-T are contained in smd 5962-96742. a hot-link is provided from our website for downloading . www.intersil.com/spacedefense/newsafclasst.asp intersils quality management plan (qm plan), listing all class t screening operations, is also available on our website. www.intersil.com/quality/manuals.asp features ? qml class t, per mil-prf-38535 ? radiation performance - gamma dose ( g ) 1 x 10 5 rad(si) - no latch-up, dielectrically isolated device islands - sep let > 110mev/mg/cm 2 ? analog/digital overvoltage protection ? fail safe with power loss (no latchup) ? break-before-make switching ? dtl/ttl and cmos compatible ? analog signal range 15v ? fast access time ? supply current at 1mhz address toggle (typ) 4ma ? standby power (typ.) 7.5mw pinouts hs1-508arh-t (sbdip), cdip2-t16 top view hs9-508arh-t (flatpack), cdfp4-f16 top view ordering information ordering number part number temp. range ( o c) 5962r9674201tec hs1-508arh-t -55 to 125 5962r9674201txc hs9-508arh-t -55 to 125 note: minimum order quantity for -t is 150 units through distribution, or 450 units direct. 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 ao en v- in 1 in 2 in 3 out in 4 a1 gnd v+ in 5 in 6 in 7 in 8 a2 2 3 4 5 6 7 8 116 15 14 13 12 11 10 9 en in1 in2 in3 in4 out gnd in5 in6 in7 in8 a0 a1 a2 v+ v- data sheet july 1999 file number 4605.1
2 functional diagram truth table a2 a1 a0 en on channel x x x l none lllh 1 llhh 2 lhlh 3 lhhh 4 hllh 5 hlhh 6 hhlh 7 hhhh 8 n p n p en in 1 out in 8 digital address decoders address input buffer and level shifter multiplex switches 1 8 a0 a1 a2 HS-508ARH-T
3 all intersil semiconductor products are manufactured, assembled and tested under iso9000 quality systems certi?cation. intersil semiconductor products are sold by description only. intersil corporation reserves the right to make changes in circuit design and/or spec ifications at any time with- out notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnished by intersil is b elieved to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of th ird parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see web site http://www.intersil.com die characteristics die dimensions: (2108 m m x 2743 m m x 279 m m 25.4 m m) 83 x 108 x 11mils 1mil metallization: type: al si thickness: 12.5k ? 2k ? substrate potential: unbiased (di) backside finish: silicon passivation: type: silox (s i o 2 ) thickness: 8.0k ? 1.0k ? worst case current density: 6.68e4 a/cm 2 transistor count: 253 process: cmos-di metallization mask layout HS-508ARH-T in3 in4 out in8 in7 in6 en a0 a1 a2 in2 in1 v- in5 v+ gnd HS-508ARH-T
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