1/10 january 2005 high speed: t pd = 0.3ns (typ.) at v cc = 3.0v t pd = 0.4ns (typ.) at v cc = 2.3v ultra low power dissipation: i cc = 0.2 a (max.) at t a = 85c low "on" resistance v i = 0v: r on = 0.4 ? (max. t a = 25c) at v cc = 4.2v r on = 0.5 ? (max. t a = 25c) at v cc = 3.0v r on = 0.6 ? (max. t a = 25c) at v cc = 2.3v wide operating voltage range: v cc (opr) = 1.4v to 4.3v single supply 4.3v tolerant and 1.8v compatible threshold on digital control input at v cc = 2.3 to 4.3v latch-up performance exceeds 300ma (jesd 17) esd perform. (analog chan. vs gnd): hbm > 4kv (mil std 883 method 3015) description the STG3685 is an high-speed cmos dual analog s.p.d.t. (single pole dual throw) switch or dual 2:1 multiplexer/demultiplexer bus switch fabricated in silicon gate c 2 mos technology. it is designed to operate from 1.4v to 4.3v, making this device ideal for portable applications. it offers very low on-resistance (<0.5 ? ) at v cc =3.0v. the in input is provided to control the switches. the switches ns1 are on (they are connected to common ports dn) when the in input is held high and off (high impedance state exists between the two ports) when in is held low; the switches ns2 are on (they are connected to common ports dn) when the in input is held low and off (high impedance state exists between the two ports) when in is held high. 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. it?s available in the commercial temperature range flip-chip package with epoxy protection. STG3685 low voltage 0.5 ? max dual spdt switch, single enable with break before make feature this is preliminary information on a new product now in development or undergoing evaluation. details are subject to change wit hout notice. figure 1: pin connection (top through view) and schematic circuit table 1: order codes package t & r flip-chip9 STG3685bjr flip-chip preliminary data rev. 1
STG3685 2/10 figure 2: input equivalent circuit table 2: pin description table 3: truth table (*) high impedance table 4: absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditi ons is not implied. (1) derate above 70c: by 18.5mw/c. table 5: recommended operating conditions 1) truth table guaranteed: 1.2v to 4.3v. pin n symbol name and function b2 in control a3, a1 c3, c1 2s1, 1s1 2s2, 1s2 independent chan- nels b3, b1 d2, d1 common channels c2 gnd ground (0v) a2 v cc positive supply voltage in switch s1 switch s2 h on off(*) l off(*) on symbol parameter value unit v cc supply voltage -0.5 to 4.6 v v i dc input voltage -0.5 to v cc + 0.5 v v ic dc control input voltage -0.5 to 4.6 v v o dc output voltage -0.5 to v cc + 0.5 v i ikc dc input diode current on control pin (v in < 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 300 ma i op dc output current peak (pulse at 1ms, 10% duty cycle) 500 ma i cc or i gnd dc v cc or ground current 100 ma p d power dissipation at t a =70c (1) tbd mw t stg storage temperature -65 to 150 c t l lead temperature (10 sec) 260 c symbol parameter value unit v cc supply voltage (note 1) 1.4 to 4.3 v v i input voltage 0 to v cc v v ic control input voltage 0 to 4.3 v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c dt/dv input rise and fall time control input v cc = 1.4v to 2.7v 0 to 20 ns/v v cc = 3.0v to 3.6v 0 to 10
STG3685 3/10 table 6: dc specifications note 1: flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the speci fied analog signal ranges. symbol parameter test conditions value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v ih high level input voltage 1.65-1.95 0.65v cc 0.65v cc 0.65v cc v 2.3-2.5 1.4 1.4 1.4 2.7-3.0 1.4 1.4 1.4 3.3 1.5 1.5 1.5 3.6 1.6 1.6 1.6 4.3 1.6 1.6 1.6 v il low level input voltage 1.65-1.95 0.40 0.40 0.40 v 2.3-2.5 0.50 0.50 0.50 2.7-3.6 0.50 0.50 0.50 3.3 0.50 0.50 0.50 3.6 0.50 0.50 0.50 4.3 0.50 0.50 0.50 r on switch on resistance (see fig. 12) 4.3 v s =0v to v cc i s =100ma 250 400 500 m ? 3.0 300 500 600 2.7 300 500 600 2.3 350 600 800 1.8 550 2000 4000 1.4 1200 2500 5000 r flat on resistance flatness (1) 4.3 v s =0 to v cc i s =100ma ? 3.0 2.7 0.07 0.15 0.15 2.3 1.65 i off off state leakage current (nsn), (dn) 4.3 v s =0.3 or 4v 10 100 na i in input leakage current 0 - 4.3 v in =0 to 4.3v 0.1 1 a i ccl quiescent supply current 1.65-4.3 v in =v cc or gnd 0.05 0.2 1 a i cch quiescent supply current 4.2 v in =1.65v 415 500 a v in =1.8v 360 400 v in =2.6v 120 150
STG3685 4/10 table 7: ac electrical characteristics (c l = 35pf, r l = 50 ?, t r = t f 5ns) table 8: analog switch characteristics (c l = 5pf, r l = 50 ? , t a = 25c) note 1: off isolation = 20log 10 (v d /v s ), v d = output. v s = input at off switch. symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. t plh, t phl propagation delay 1.65-1.95 0.45 ns 2.3-2.7 0.40 3.0-3.6 0.30 3.6-4.3 0.30 t on turn-on time 1.65-1.95 v s =0.8v 70 ns 2.3-2.7 v s =1.5v 32 50 60 3.0-3.6 32 50 60 3.6-4.3 30 50 60 t off turn-off time 1.65-1.95 v s =0.8v 45 ns 2.3-2.7 v s =1.5v 25 30 40 3.0-3.6 15 30 40 3.6-4.3 15 30 40 t d break before make time delay 1.65-1.95 c l =35pf r l = 50 ? v s =1.5v ns 2.3-2.7 2 15 3.0-3.6 2 15 3.6-4.3 2 15 q charge injection 1.65-1.95 c l = 100pf r l = 1m ? v gen = 0v r gen = 0 ? pc 2.3-2.7 200 3.0-3.6 200 3.6-4.3 200 symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. oirr off isolation (1) 1.65-4.3 v s = 1v rms f= 100khz -64 db xtalk crosstalk 1.65-4.3 v s = 1v rms f= 100khz -32 db thd total harmonic distortion 2.3-4.3 r l = 600 ? v i = 2v pp f = 20hz to 20khz 0.03 % bw -3db bandwidth 1.65-4.3 r l = 50 ? 50 mhz c in control pin input capacitance 10 pf c sn sn port capaci- tance 3.3 f = 1mhz 35 c d d port capaci- tance when switch is enabled 3.3 f = 1mhz 91
STG3685 5/10 figure 3: on resistance figure 4: off leakage figure 5: off isolation figure 6: bandwidth figure 7: channel to channel crosstalk
STG3685 6/10 figure 8: test circuit c l = 5/35pf or equivalent (includes jig and probe capacitance) r l = 50 ? or equivalent r t = z out of pulse generator (typically 50 ? ) figure 9: break before make time delay figure 10: charge injection (v gen = 0v, r gen = 0 ? , r l = 1m ? , c l = 100pf)
STG3685 7/10 figure 11: turn on, turn off delay time typical characteristics figure 12: switch-on r on vs v in
STG3685 8/10 dim. mm. mils min. typ max. min. typ. max. a 1.591.641.6962.664.666.5 b 1.421.471.5255.957.959.8 c0.8031.5 d 0.295 0.32 0.345 11.6 12.6 13.6 e 0.5 19.7 f 0.350.400.4513.815.717.7 g 0.25 9.8 h 0.061 0.0635 0.066 2.4 2.5 2.6 flip-chip9 mechanical data
STG3685 9/10 table 9: revision history date revision description of changes 13-jan-2005 1 first release.
STG3685 10/10 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement 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 stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics all other names are the property of their respective owners ? 2005 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
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