???????3?a??e?t1??? http://www.swid.com.cn 1 sw - 400 ad a??? 1|? l 1|??1 3.0~3.6v l 10 - bit ??2??a 20ms/s l 2??3????? l e?o??? 2 v pp ??? 4 v pp l 200mw ?1|o? l ????? ?? sw - 400 ????3 20ms/s 2??a????????e ad a??? ??? as/h ?a1?????????? ? ??????????? ?2?2????1 ?y??? ????????1|o?????? ?eo? ad a????ea?e???a????a??? a??? ?? ?? y?y2? ?? ?y?y??o e?
???????3?a??e?t1??? http://www.swid.com.cn 2 sw - 400 ad a??? l 3.3v 1????2??????2?y t min ? t max , vdda=vdd=+3.0v to +3 .6v, 3y??a??? fclk , vrefp o vrefn ??a???t?a1 dc ??? ?? 2?y ??t ?e? ?e ?? ??? ??a 2?a? 10 10 10 bit dnl ????e??2? - 0.9 0.5 + 1 lsb inl ?y???e??2? - 1 0.8 + 1 lsb off ????a? lsb gainerr ????a? ??2?y ?? 2?y ??t ?e? ?e ?? ??? vbg a????2?????1 1.25 v vcmu ??o3? c ?????1 1.5 vdda/2 1.8 v vcm ?o3? c ?????1 vcmu v vrefp pos. 2?????1 vcm+0.4vgb v vrefn neg. 2?????1 vcm+0.4vgb v vref vrefp ? vrefn ?2?? 1 1 2 v r bg a????2????1 10 k i bg a????2???? 13.8 ua c omu ??o3? comm ?1??? 2.2 pf c om comm ?1??? op. ??? 2 3 5 6 22.5 pf r refp c refp pos. 2????1 op. ??? 3 6 18 7.1 k pf r refn c refn neg. 2????1 op. ??? 3 6 18 7.1 k pf ??a?? ?? 2?y ??t ?e? ?e ?? ??? vind 2???????1??e 2??? vcmu 100 m 1 pf rin cin finmax ???1 ?????a 10 mhz
???????3?a??e?t1??? http://www.swid.com.cn 3 sw - 400 ad a??? ac ??? ?? 2?y ? ?t ?e? ?e ?? ??? thd e32?? f in =2mhz - 63 db thd e32?? f in =9.5 mhz - 58 db sfdr ?t?????? f in =2mhz 65 db sfdr ?t?????? f in =9.5 mhz 58 db snr e??? f in =2mhz 60 db snr e??? f in =9.5 mhz 60 db sinad e?o??? ???2? f in =2mhz 58 db sinad e?o??? ???2? f in =9.5 mhz 56 db enob bit ee?? f in =2mhz 9.4 bit enob bit ee?? f in =9.5 mhz 9.0 bit fpbw ?1|a?? 50 mhz y??????3? ?? 2?y ??t ?e? ?e ?? ??? vdd pos. y?1????1 vdd=vdda 3.0 3.3 3.6 v vss neg. y?1????1 gnd=gnda 0 0 0 v vil y?????? gnd 0.3vdd v vih 0.7vdd vdd v vo l y??3???? gnd v voh vdd v b 9 0 ?3?a? vind=vref 000 hex vind=vref 3ff hex 1|aa? ?? 2?y ??t ?e? ?e ?? ??? vdda pos. ??a1????1 vdd=vdda 3.0 3.3 3.6 v vssa neg. ??a1????1 gnd=gnda 0 0 0 v idd y?1??? 6 ma idda ??a1??? 54 ma pdiss 1???1|a?eo? op. 1 ? ? 200 mw pdiss y???1|a?eo? op. 0 ??? mw
???????3?a??e?t1??? http://www.swid.com.cn 4 sw - 400 ad a??? ??? ?? 2?y ??t ?e? ?e ?? ??? fclk ??a 0.1 20 mhz 1/ts 2??a fclk ms/sec ted ??a????2??3 1.1 nsec tod ??a???y??3??3 5 nsec ????? 45 50 55 % y?y?y?? 5 5 5 clkcycle y?? 1|? i/o e vinp pos. ????1 i analog vinn neg. ????1 i analog vbg ?????????1 i analog vrefp ?2? pos. ????1?3????a i/o analog vrefn ?2? neg. ????1?3????a i/o analog vcmu ??ae?o???o3?12???1?? i analog clk ??? i digital b 9 0 y??3? bits b9=msb b0=lsb o digital onadc y??? adc i digital onref y?????l? i digital oncm y??? vcm ?o? i digital dgt y?2a?????? ??e?? ? i digital dout adc ??3?y?y2a????? ? ??e?? vdd i digital swib ??????????? ?1??a????? adc 1????????? ??? ??a???? i digital ibias ? swib= 1 ?2a?2?????? ?3??? ? swib= 0 ?aa?????? ? ??? i/o analog vdda ?????a??11?| i supply gnda ?????a??11?| i supply vdd ???y???11?| i supply gnd ???y???11?| i supply gnd2 ??????1 i supply
???????3?a??e?t1??? http://www.swid.com.cn 5 sw - 400 ad a??? l 1?- sw - 400 ????2??a?a 20ms/s ? 10 ???1|o? ad a??? ??2????? 1.5bit ????????11oy??2?et ?y1|??????e?e?? ????????2? - 3?????? s/h 1?????e?? ???a?a????? ?????e?o????2?1|? ?3??a3??-?y???2? 1yy??a?et?ya??-2 10 - bit y??3?a? l 2??? ??? ?? onadc onref oncm swib 0 ???1?? 0 x x x 1 ??2? vcm o vref ?o?o???? ibias l?? ???? 1 1 1 1 2 ??2? vref o ibias a? vcm ?o??a????? 1 1 0 1 3 ?? ibias a? vcm o vref ????? 1 0 0 1 4 ?? vcm vref ?o?oa? ibias ????? 1 1 1 0 5 ?? vref ??a? vcm o ibias ????? 1 1 0 0 6 a? vcm vref o ibias ????? 1 0 0 0 0 ??? - ??1?? ??a????? ?e?a|1???? 1| o??????e?? 1 ??? - ???? ?a???a???|??1??? ??????2?2 ?????1o1?12??1?a?2??o? ?????????????????a1 adc |???e???? ???a?????a vinp o vinn ??? vcmu |??oa ??????2??? ? adc ?1y?? vinn ? vcmu ?1??? vinp ?????ee??????? ?????? 2 ???? 6 ??? ?ae?a??????e2????????l?o???1?12?????1?o??|???a???? ] l ??1?| a???ea +3.3v ????1?? ????aoy??1?????? ?a 2???????e ??? ?a???????1 ?e?? ea?2????2?2???y?? ?e????????e?y??a 1??|o pc ?????????? ?e ?|??a?e ?y???????y?????a?
???????3?a??e?t1??? http://www.swid.com.cn 6 sw - 400 ad a??? l 1|???? l e? sw - 400 ?2??a?e?o???a? ?? clk ?a??2?? adc ??e?o???1 ?? clk ? ????? ?????e??a 50% ?? clk ?a???3?????|??1??????? a??e??????a?
???????3?a??e?t1??? http://www.swid.com.cn 7 ????3?a??e?t1??? ?? 86 23 62803074 86 23 62836154 - 8088 ??? 86 23 62836149 ?? http://www.swid.com.cn ? market@swid.com.cn
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