1 standard ics 8-channel analog multiplexer / demultiplexer bu4051bc / bu4051bcf / BU4051BCFV the bu4051bc, bu4051bcf and BU4051BCFV are analog multiplexers / demultiplexers which use three-input digi- tal signals for control via an 8-channel analog switch. these products feature high on / off output voltage ratio and low crosstalk between analog switches. block diagram x 4 channel in / out common out / in 1 x 6 2 x 3 x 7 4 x 5 5 inh 6 v ee 7 v ss 8 16 15 14 13 12 11 10 9 v dd x 2 x 1 x 0 x 3 a b c c x 6 x x 7 x 5 inh v ee x 2 x 1 x 0 x 3 a b channel in / out channel in / out x 4 logic circuit diagram truth table inh a b c on switch l lll x 0 lhll x 1 l lhl x 2 lhhl x 3 lllhx 4 l hlh x 5 llhhx 6 l hhh x 7 h x x x none x: irrelevant v dd (16) inh (6) a (11) b (10) c (9) x 0 (13) x 1 (14) x 2 (15) x 3 (12) x 4 (1) x 5 (5) x 6 (2) x 7 (4) v ee (7) v ss (8) x (3) common level converter binary to 1 of 8 decoder with inhibit
2 standard ics bu4051bc / bu4051bcf / BU4051BCFV absolute maximum ratings (ta = 25?) parameter symbol limits unit power supply voltage 2 v dd ? ee v power supply voltage 1 v dd ?0.5 ~ + 20 ?0.5 ~ + 20 ?40 ~ + 85 ?55 ~ + 150 v power dissipation pd 1000 (dip), 500 (sop), 400 (ssop) mw operating temperature topr c storage temperature tstg c input voltage v in ?0.5 ~ v dd + 0.5 v electrical characteristics dc characteristics (unless otherwise noted, ta = 25?, v ee = v ss = 0v) parameter symbol min. typ. max. unit conditions input high-level voltage v ih 3.5 v 5 7.0 10 11.0 15 input low-level voltage v il 1.5 v 5 3.0 10 4.0 15 input high-level current i ih 0.3 m a15v ih = 15v input low-level current i il ?0.3 m a15v il = 0v ron resistance r on 950 w 5 250 10 160 15 ron resistance deflexion ?0 w 5 ? 10 ? 15 off-channel leakage current i off 0.3 m a 15 ?0.3 15 static current dissipation i dd 5 m a 5 v i = v dd v in = v dd / 2 or gnd 10 10 15 15 v dd (v) d r on
3 standard ics bu4051bc / bu4051bcf / BU4051BCFV switching characteristics (unless otherwise noted, ta = 25?, v ee = v ss = 0v, r l = 1k , c l = 50pf) parameter symbol min. typ. max. unit conditions measurement circuit t plh t phl ?545 ns 5 fig.4 8 20 10 6 15 15 170 550 ns 5 90 240 10 70 160 15 150 380 ns 5 70 200 10 50 160 15 max. propagation frequency 20 mhz 5 fig.7 feedthrough ft 0.5 mhz 5 fig.7 sinewave distortion d 0.02 % 5 fig.7 input capacitance (control) c c ? pf input capacitance (switch) c s 10 pf fig.5, 6 fig.5, 6 t phz , t plz t pzh , t pzl propagation delay time channel in ? out propagation delay time cont ? out propagation delay time inhibit ? out t phz , t plz t pzh , t pzl f max. v dd (v) v ee = ?5v * 1 v ee = ?5v * 2 v ee = ?5v * 3 * 1 v in = 5v p-p sine wave, f requency that enables 20 log 10 v out / v in = ?3db * 2 v in = 5v p-p sine wave, f requency that enables 20 log 10 v out / v in = ?50db at channel off * 3 v in = 5v p-p sine wave measurement circuits i in v ee gnd v in a b c inh common out / in channel in / out a v dd v dd r l = 10k w fig. 1 input voltage, current v v in a b c inh common out / in channel in / out v dd v dd / 2 r l = 10k w v v in v out r on = r l v out ?1 () v control in fig. 2 on resistance, on resistance deviation v ee gnd
4 standard ics bu4051bc / bu4051bcf / BU4051BCFV a b c inh common out / in channel in / out v dd v dd or gnd gnd or v dd a v control in fig. 3 off-channel leakage current v ee gnd a b c inh common out / in channel in / out v dd c l p.g. r l v dd input gnd t plh t phl 50% output 50% v control in fig. 4 propagation delay time (switch in to out) v ee gnd v dd a b c inh common out / in channel in / out v dd out c l p.g. r l v dd input gnd output 50% 50% 90% t pzh t phz fig. 5 propagation delay time (cont, inh to out) v ee gnd
5 standard ics bu4051bc / bu4051bcf / BU4051BCFV gnd a b c inh common out / in channel in / out v dd v dd out c l p.g. r l input output 50% 50% 10% t pzl t plz fig. 6 propagation delay time (cont, inh to out) gnd v ee v ee a b c inh common out / in channel in / out v dd c l ~ v ~ d r l v control fig. 7 maximum propagation frequency, feedthrough attenuation, sine wave distortion gnd electrical characteristic curve power dissipation: pd (mw) ambient temperature: ta ( c) 1200 1000 dip16 sop16 800 600 400 200 0 0255075 100 125 150 ssop-b16 power dissipation vs. ambient temperature fig. 8
6 standard ics bu4051bc / bu4051bcf / BU4051BCFV external dimensions (units: mm) bu4051bc BU4051BCFV bu4051bcf dip16 ssop-b16 sop16 9 8 16 1 0.1 6.4 0.3 4.4 0.2 5.0 0.2 0.1 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. 0.4 0.1 1.27 0.15 0.15 0.1 0.3min. 4.4 0.2 6.2 0.3 0.11 1.5 0.1 1 16 10.0 0.2 8 9 0.51min. 0.3 0.1 9 16 8 1 6.5 0.3 3.2 0.2 4.25 0.3 0.5 0.1 19.4 0.3 2.54 0 ~ 15 7.62
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