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june 2010 doc id 14580 rev 3 1/23 23 stg5678 low voltage dual spdt switch with negative rail capability features distortion-free negative signal throughput down to v cc - 5.5 v wide operating voltage range: v cc (opr) = 1.65 to 4.5 v single supply ultra low power dissipation: i cc = 0.2 a (max.) at t a = 85 c low on resistance: r on = 0.5 (max. t a = 25 c) at v cc = 3.6 v 4.3 v tolerant and 1.8 v compatible threshold on digital control input at v cc = 1.65 v to 4.5 v latch-up performance exceeds 300 ma (jesd 17) esd performance: ? 2000-v human-body model (iec61340-3-1:2002 level 2) ? 200-v machine model (iec61340-3-2 level m2) ? 1000-v charge device model (jesd22-c101-a level iii) description the stg5678 is a high-speed cmos low voltage dual analog spdt (single pole dual throw) switch or 2:1 multiplexer/de-multiplexer switch fabricated in silicon gate cmos tech nology. it is designed to operate from 1.65 to 4.5 v. the device is capable of handling signals with negative voltages from v cc - 5.5 v to v cc without any distortion. additional key features are fast switching speed, break-before-make delay time and ultra low power consumption. all inputs and outputs are equipped with protection circuits against static discharge, giving them esd immunity and transient excess voltage. flip-chip 12 table 1. device summary order code package packaging stg5678bjr flip-chip 12 tape and reel STG5678CJR flip-chip 12 (with back side coating) tape and reel www.st.com
contents stg5678 2/23 doc id 14580 rev 3 contents 1 pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 stg5678 device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 application hint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.1 input signal dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
stg5678 pin settings doc id 14580 rev 3 3/23 1 pin settings 1.1 pin connection figure 1. pin connection (bump side view) 1. note 1: bump a1 is distinguished by a circular dot on the top-side. t here is no circular dot on the bump- side. 1.2 pin description a1 a2 b2 c2 c1 b1 d2 d1 a 3 b 3 c 3 d 3 a b c d 1 2 3 1 s el nc gnd gnd d1 1 s 1 v cc 1 s 2 2 s el 2 s 1 d2 2 s 2 a b c d 1 2 3 s ee note 1 table 2. pin assignment pin number symbol name and function a1 1sel selection control for switch 1 a2 nc no connection a3 2sel selection control for switch 2 b1 1s1 independent channel for switch 1 b2 gnd ground (0 v) b3 2s1 independent channel for switch 2 c1 d1 common channel for switch 1 c2 gnd ground (0 v) c3 d2 common channel for switch 2 d1 1s2 independent channel for switch 1 d2 v cc positive supply voltage d3 2s2 independent channel for switch 2
stg5678 device summary stg5678 4/23 doc id 14580 rev 3 2 stg5678 device summary figure 2. functional diagram figure 3. input equivalent circuit table 3. truth table sel switch s1 switch s2 honoff (1) 1. high impedance loff (1) on 1s1 1s2 d1 1sel 2s1 2s2 d2 2sel 2sel 2s1 2s2 1s1 1s2 d2 d1 1sel d sel s2 s1
stg5678 maximum rating doc id 14580 rev 3 5/23 3 maximum rating stressing the device above the rating listed in the ?absolute maximum ratings? table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. table 4. absolute maximum ratings symbol parameter value unit v cc supply voltage -0.5 to 5.5 v v i dc input voltage - (v cc - 6.0) to v cc + 0.5 v v ic dc control input voltage -0.5 to 5.5 v v o dc output voltage - (v cc - 6.0 v) to v cc + 0.5 v i ikc dc input diode current on control pin (v sel <0v) -50 ma i ik dc input diode current (v in <0v) 50 ma i ok dc output diode current 20 ma i o dc output current 150 ma i op dc output current peak (pulse at 1ms, 10% duty cycle) 400 ma i cc or i gnd dc v cc or ground current 100 ma p d power dissipation at t a = 70c (1) 1. derate above 70 oc by 18.5 mw/c 1120 mw t stg storage temperature -65 to 150 c t l lead temperature (10 sec) 300 c
maximum rating stg5678 6/23 doc id 14580 rev 3 3.1 recommended operating conditions table 5. recommended operating conditions symbol parameter value unit v cc supply voltage 1.65 to 4.5 v v i input voltage v cc -5.5 to v cc v v ic control input voltage 0 to 4.5 v v o output voltage v cc -5.5 to v cc v t op operating temperature -40 to 85 c dt/dv input rise and fa ll time control input v cc = 1.65 to 2.7 v 0 to 20 ns/v v cc = 3.0 to 4.5 v 0 to 10
stg5678 electrical characteristics doc id 14580 rev 3 7/23 4 electrical characteristics table 6. dc specifications symbol parameter test conditions value unit v cc (v) t a = 25 c -40 to 85 c min typ max min max v ih high level input voltage 1.65 ? 1.95 0.9 ? ? 0.9 ? v 2.25 ? 2.7 0.9 ? ? 0.9 ? 3.0 ? 4.3 1.0 ? ? 1.0 ? 4.5 1.1 ? ? 1.1 ? v il low level input voltage 1.65 ? 1.95 ? ? 0.6 ? 0.6 v 2.25 ? 2.7 ? ? 0.6 ? 0.6 3.0 ? 4.3 ? ? 0.7 ? 0.7 4.5 ? ? 0.7 ? 0.7 r on switch on resistance 1.8 v s = v cc ? 5.5 v to v cc ; i s = 100 ma ?3.804.60?7.0 2.7 ? 0.77 0.90 ? 1.2 3.0 ? 0.64 0.80 ? 1.0 3.6 ? 0.51 0.65 ? 1.0 r on on resistance match between channels (1) 1.8 v s at r on max i s = 100 ma ? 50 ? ? 500 m 2.7 ? 20 ? ? 500 3.0 ? 15 ? ? 500 3.6 ? 15 ? ? 500 r flat on resistance flatness (2) 1.8 v s = v cc ? 5.5 v to v cc ; i s = 100 ma ?3.5? ?6.6 2.7 ? 0.50 ? ? 0.8 3.0 ? 0.40 ? ? 0.6 3.6 ? 0.25 ? ? 0.5 i off sn off state leakage current 3.6 v s = -1.2 to 3.6 v v d = 3.6 to -1.2 v ? -0.55 ? -2 1 a i on sn on state leakage current 3.6 v s = -1.2 to 3.6 v v d = open ? -0.55 ? -2 1 a
electrical characteristics stg5678 8/23 doc id 14580 rev 3 symbol parameter test conditions value unit v cc (v) t a = 25 c -40 to 85 c min typ max min max i d d on state leakage current 3.6 v s = open v d = -1.2 v to 3.6 v ?0.55? -2 1a i ih ,i il sel leakage current 3.6 v sel =3.6v or gnd -0.1 0.1 -1 1 a i cclv quiescent supply current low voltage driving 3.6 v 1sel , v 2sel = 1.80 v ? 7 ? ? 10 a i cc quiescent supply current (3) 2.5 v 1sel = v 2sel = v cc ?5.6? ?10 a 3.6 ? 8 ? ? 16 1.65 ? 4.5 v 1sel = v 2sel = gnd ?0.05? ?0.1 1. note 1: r on = r on(max) - r on (min) 2. flatness is defined as the difference between the maximum and minimum value of on-resist ance as measured over the specified analog signal ranges. 3. when v 1sel and v 2sel is both low, the i cc consumption will reduce to less than 0.1 a (max) table 6. dc specifications (continued)
stg5678 electrical characteristics doc id 14580 rev 3 9/23 table 7. ac electrical characteristics (c l = 35 pf, r l = 50 , t r = t f 5ns) symbol parameter test conditions value unit vcc (v) t a = 25c -40 to 85c min typ max min max t plh , t phl propagation delay 1.65 ? 1.95 ? 0.45 ? ? ? ns 2.3 ? 2.7 ? 0.40 ? ? ? 3.0 ? 3.3 ? 0.30 ? ? ? 3.6 ? 0.25 ? ? ? t on tu r n o n time 1.65 ? 1.95 v s = 0.8 v ? 220 265 ? ? ns 2.3 ? 2.7 v s = 1.5 v ? 140 175 ? ? 3.0 ? 3.3 ? 110 135 ? ? 3.6 ? 105 130 ? ? t off tu r n o f f time 1.65 ? 1.95 v s = 0.8 ? 120 150 ? ? ns 2.3 ? 2.7 v s = 1.5 v ?7792 ? ? 3.0 ? 3.3 ? 77 92 ? ? 3.6 ? 77 92 ? ? t d break- before-make time delay 1.65 ? 1.95 c l = 35 pf r l = 50 ? v s = v cc /2 ?120??? ns 2.3 ? 2.7 ? 66 ? ? ? 3.0 ? 3.3 ? 40 ? ? ? 3.6 ? 30 ? ? ? q charge injection 1.65 ? 1.95 c l = 100 pf v gen = 0 v ?55??? pc 2.3 ? 2.7 ? 76 ? ? ? 3.0 ? 3.3 ? 94 ? ? ? 3.6 ? 126 ? ? ?
electrical characteristics stg5678 10/23 doc id 14580 rev 3 table 8. analog switch characteristics (c l = 5 pf, r l = 50 ,) symbol parameter test conditions value unit v cc (v) t a = 25 c -40 to 85 c min typ max min max o irr off isolation (1) 2.7 ? 3.6 v s = 1 v rms, f = 100 khz ?-86 ? ? ? db v s = 1 v rms, f = 1 mhz ?-70 ? ? ? v s = 1 v rms, f = 5 mhz ?-54 ? ? ? x talk crosstalk (2) 2.7 ? 3.6 v s = 1 v rms, f = 100 khz ?-96 ? ? ? db v s = 1 v rms, f = 1 mhz ?-87 ? ? ? v s = 1 v rms, f = 5 mhz ?-74 ? ? ? t hd total harmonic distortion 2.7 ? 3.6 r l = 32 ? v in = 0.5 v pp dc bias = 0 f = 20 hz to 20 khz ?0.01 ? ? ? % bw -3db bandwidth 2.7 ? 3.6 r l = 50 signal = 0 dbm ?30 ? ? ?mhz c sel control pin input capacitance 3.3 f = 1 mhz ? 12 ? ? ? pf c sn(off) off sn port capacitance 3.3 f = 1 mhz ?120 ? ? ? pf c d d port capacitance when switch is enabled 3.3 f = 1 mhz ? 290 ? ? ? pf 1. off isolation = 20log10 (v d /v s ), v d = output. v s = input to off switch. 2. crosstalk values are meas ured between two switches.
stg5678 test circuit doc id 14580 rev 3 11/23 5 test circuit figure 4. on resistance figure 5. off leakage i ds v cs14071 v cc s1 s2 in gnd gnd d vs v ss v cc in s 2 a c s 140 8 1 d v d a v cc gnd s (off) i d(off) i
test circuit stg5678 12/23 doc id 14580 rev 3 figure 6. off isolation figure 7. bandwidth gnd in s 2 s 1 v cc v out 50 gnd v s cs00381 c s 00 3 71 v cc v cc s1 s2 in gnd d v out
stg5678 test circuit doc id 14580 rev 3 13/23 figure 8. channel-to-channel crosstalk 2. c l = 5/35 pf or equivalent (inc ludes jig and pr obe capacitance) 3. r l =50 or equivalent 4. r t =z out of pulse generator (typically 50 ) figure 9. test circuit cs14091
test circuit stg5678 14/23 doc id 14580 rev 3 figure 10. break-before-make time delay figure 11. switching time and charge injection (v gen =0v, r gen =0 , r l =1m , c l = 100 pf) figure 12. turn on, turn off delay time cs08721 s1 s2 v cc d r l c l v out gnd v in in
stg5678 application hint doc id 14580 rev 3 15/23 6 application hint 6.1 input signal dynamic range the stg5678 negative analog switch allows input signals that fall below 0 v to pass through the switch without signal distortion. the input signal dynamic range vi consists of a positive-region and a negative-region. the positive-region is lim ited by the level of v cc . the negative-region is limited by the difference between v cc and 5.5 v. the effect of this is that, the higher the v cc , the smaller the operating range in the negative region. for example, if v cc = 3.6 v, the input signal dynamic range is from -1.9 v to 3.6 v. figure 13. application diagram 0v v cc v cc -5.5 ne g ative sw v cc v i negative region
package mechanical data stg5678 16/23 doc id 14580 rev 3 7 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. figure 14. package outline for flip-chip 12 d c b a bottom view 3 2 1
stg5678 package mechanical data doc id 14580 rev 3 17/23 figure 15. footprint recommendation table 9. mechanical data for flip-chip 12 symbol millimeters min typ max a 0.55 0.605 0.66 a1 0.17 0.205 0.24 a2 0.38 0.4 0.42 b 0.215 0.255 0.295 d 1.568 1.598 1.628 d1 ? 1.2 ? e 1.168 1.198 1.228 e1 ? 0.8 ? e 0.36 0.4 0.44 f 0.189 0.199 0.209 ccc ? 0.05 ?
package mechanical data stg5678 18/23 doc id 14580 rev 3 figure 16. package outline for flip-chip 12 with back side coating table 10. mechanical data for flip-chip 12 with back side coating symbol millimeters min typ max a 0.595 0.65 0.705 a1 0.165 0.20 0.235 a2 0.38 0.4 0.42 b 0.215 0.255 0.295 d 1.568 1.598 1.628 d1 ? 1.2 ? e 1.168 1.198 1.228 e1 ? 0.8 ? e 0.36 0.4 0.44 f 0.189 0.199 0.209 ccc ? 0.05 ? n5_me a b c 4 $
stg5678 package mechanical data doc id 14580 rev 3 19/23 figure 17. footprint recommendation figure 18. tape information n5_fr 1 2 3 4 a b c
package mechanical data stg5678 20/23 doc id 14580 rev 3 figure 19. tape orientation table 11. reel measurement tape width (mm) an w1 w2 w3 max min max min max 8 180 54 8.4 +1.5/-0 14.4 7.9 10.9 u s er direction of feed am00745v1
stg5678 package mechanical data doc id 14580 rev 3 21/23 figure 20. reel information
revision history stg5678 22/23 doc id 14580 rev 3 8 revision history table 12. document revision history date revision changes 01-apr-2008 1 initial release. 10-sep-2008 2 document status promoted from preliminary data to datasheet. modified: figure 19 on page 20 . updated: table 9 on page 17 . 04-jun-2010 3 added: flip-chip 12 with back side coating. document reformatted.
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