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_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 1 / 11 u m2268/UM2268A 0.4 ultra low on - resistance, dual, spdt analog switch u m 2268 q fn 10 1.8 1.4 UM2268A qfn 10 2.1 1.6 general description the um 2268 /UM2268A is a dual , low - power single - pole/ double - throw ( s pdt) analog switch that operate s from a single + 1 .8 v to + 4.4 v supply. the um 2268 /UM2268A features guaranteed on - resistance matching (0.04 typ) between switches and guaranteed on resistance flatness over the signal range (0.08 typ), as well as high off - isolation and low crosstalk. t his ensures excellen t linearity and low distortion when switching audio signals. the um2268 is available in pb - free qfn 10 package (1. 8 mm1. 4 mm0.55mm) , while the UM2268A is available in pb - free qfn 10 package ( 2.1 mm1. 6 mm0.55mm) . applications features ? portable instrumen tation ? battery - operated equipment ? computer peripherals ? speaker and earphone switching ? medical equipment ? audio and video switching ? v cc operating range: +1.8v to + 4.4 v ? low on - resistance: 0.4 ? on - resistance matching: (0.04 ? on - resistance flatness: (0.08 ? - 3db bandwidth:8 0mhz ? low off - isolation : - 78 db ( 100k hz) ? low crosstalk: - 9 3 db ( 100k hz ) ? ttl/cmos compatible ? break - before - make switching ? rail - to - rail input and output opera tion ? lead (pb) free qfn 10 package pin configurations top view m: month code um 2268 qfn 10 1. 8 1. 4 1 2 3 4 5 6 7 8 9 1 0 n c 2 n o 1 n c 1 v + c o m 1 i n 1 i n 2 c o m 2 g n d n o 2
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 2 / 11 u m2268/UM2268A m: month code um2 268a qfn 10 2.1 1. 6 ordering information part number packaging type marking code s hipping qty um 2268 qfn10 1.8mm 1.4mm ae 3000pcs/7 inch tape & reel UM2268A qfn10 2.1 mm 1.6mm al p i n description um2268 UM2268A name function 1,3 2,4 no1,no2 normally - open terminal 10,2 1,3 nc1,nc2 normally - closed terminal 4 5 gnd ground 8,5 9,6 com1,com2 common terminal 7,6 8,7 in1,in2 digital control pin to connect the com terminal to the no or nc terminals 9 10 v+ power supply function table logic no nc 0 off on 1 on off absolute maximum ratings symbol parameter limit unit v + supply voltage 0 to + 4.6 v v i s analog switch input voltage - 0. 3 to (v cc + 0. 3 ) v in digital select input voltage 0 to + 4.6 i d continuous dc current 2 50 ma i p peak current 350 ma t o operating temperature range - 40 to + 85 c t stg storage temperature range - 65 to +150 esd hbm 4 000 v n o 2 n c 2 n o 1 n c 1 g n d c o m 2 i n 2 i n 1 c o m 1 v c c a l m
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 3 / 11 u m2268/UM2268A electrical characteristics v+ = + 4.4 v, gnd = 0v, t a = - 40c to + 85c. u nless otherwise noted. symbol parameter test conditions vcc (v) temp li mits ( C 40 to 85 c) unit min typ (note1) max v+ power supply range full 1.8 4.4 v i cc quiescent supply current v in = v + or 0 4.4 full 1.0 a i in input leakage current v in =0v/ 4.4 v 4.4 full 1 .0 a i off power o ff leakage current v no /v nc =3.3v/0.3v, v com =0.3v/3.3v 4.4 full 1.0 a i on channel on leakage current v com =0.3v/3.3v v no or v nc =0.3v/3.3v, or floating 4.4 full 1 . 0 a r on on - resi stance (note2) v no, v nc or v com =1.0v, i com = - 100ma 4.4 room full 0. 4 0. 7 5 0. 8 5 r on on resistance match between channels (note2,3,4) v no, v nc or v com =1.0v, i com = - 100ma 4.4 room full 0.04 0.15 0.20 r flat on resistance flatness (note2,3,5) v no, v nc or v com =1.0v,2.5v i com = - 100ma 4.4 room full 0.08 0.12 0.20 v i h input high voltage 4.4 full 2.0 v v il input low voltage 4.4 full 0.5 v t on turn on time v in = 2.1v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =2.1v,test circuit 1 4.4 room 88 n s t off turn o ff time v in = 2.1v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =2.1v,test circuit 1 4.4 room 16 ns t bbm break before make time ( note 6 ) v in = 2.1v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =2.1v,test circuit 2 4.4 room 6 ns o i rr off isolation (note 7 ) v bias = 2.1v, signal = 0db m, test circuit 3 100khz 4.4 room - 78 db 1mhz room - 58 db x talk crosstalk v bias = 2.1v, signal = 0dbm, test circuit 4 100khz 4.4 room - 9 3 db 1mhz room - 90 db bw - 3db bandwidth v bias = 2.1v, si gnal = 0dbm, test circuit 5 4.4 room 8 0 mhz q charge injection select input to common i/o v g =0v,r s =0 , c l =1.0nf,test circuit 6 4.4 room 4.0 pc c on hsd+ hsd - on capacitance (note8) 4.4 room 56 pf 1: typically values are at v + = 4.4 v and t a =+25 . 2: guaranteed by design. resistance measurements do not include test circuit or package resistance. 3: para meter is characterized but not tested in production. 4: r on = r on ( no1/nc1) C r on(no2/nc2) measured at identical v cc , temperature and voltage levels. 5: flatness is defined as the difference between the maximum and minimum value of on resistance over the specified range of conditions. 6 : guaranteed by design. 7 : off isolation = 20 log10 [v com /v no/nc ]. 8 : t a = +25, f = 1 mhz, capacitance is characterized but not tested in production.
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 4 / 11 u m2268/UM2268A electrical characteristics v+ = +2.7v to +3.6v, t a = - 40c to + 85c. u nl ess otherwise noted. symbol parameter test conditions vcc (v) temp limits ( C 40 to 85 c) unit min typ (note1) max v no ,v nc , v com analog signal range full 0 v + v i in input leakage current v in =0v/ 2.7 v 2.7 full 1 .0 a i off power o ff leakage current v no /v nc =3.3v/0.3v, v com =0.3v/3.3v 3.6 full 1.0 a i on channel on leakage current v com =0.3v/3.3v v no or v nc =0.3v/3.3v, or floating 3.6 full 1 . 0 a r on on - resistance (note2) v no, v nc or v com =1.0v, i com = - 100ma 2.7 room full 0. 7 5 1.10 1. 20 r on on resistance match between channels (note2,3,4) v no, v nc or v com =1.0v, i com = - 100ma 2.7 room full 0.0 3 0.15 0.20 r flat on resistance flatness (note2,3,5) v no, v nc or v com =1.0v,2.5v i com = - 100ma 2.7 room full 0. 10 0.1 8 0.2 0 v i h input high voltage 3.0 full 1. 5 v v il input low voltage 3.0 full 0.4 v t on turn on time v in = 1.5v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =1.5v,test circuit 1 3.0 room 100 ns t off turn o ff time v in = 1.5v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =1.5v,test circuit 1 3.0 room 20 ns t bbm break before make time ( note 6 ) v in = 1.5v to 0v, r l =50 ,c l =35pf, v no1, or v nc1 = v no2, or v nc2 =1.5v,test circuit 2 3.0 room 9.2 ns o i rr off isolation (note 7 ) v bias = 2.1v, signal = 0dbm, test circuit 3 100khz 3.0 room - 78 db 1mhz room - 58 db x talk crosstalk v bias = 2.1v, signal = 0dbm, test circuit 4 100khz 3.0 room - 9 3 db 1mhz room - 90 db bw - 3db bandwidth v bias = 2.1v, signal = 0dbm, test circuit 5 3.0 room 80 mhz q char ge injection select input to common i/o v g =0v,r s =0 , c l =1.0nf, test circuit 6 3.0 room 3.0 pc c on hsd+ hsd - on capacitance (note8) 3.0 room 56 pf 1: t a =+25 . 2: guaranteed by design. resistance measurements do not include test circuit or package resistance. 3: parameter is characterized but not test ed in production. 4: r on = r on ( no1/nc1) C r on(no2/nc2) measured at identical v cc , temperature and voltage levels. 5: flatness is defined as the difference between the maximum and minimum value of on resistance over the specified range of conditions. 6: g uaranteed by design. 7: off isolation = 20 log10 [v com /v no/nc ]. 8: t a = +25, f = 1 mhz, capacitance is characterized but not tested in production.
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 5 / 11 u m2268/UM2268A typical operating characteristics ( t a =+25 . unless otherwise noted. )
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 6 / 11 u m2268/UM2268A typical operatin g characteristics (continued) (t a =+25 . unless otherwise noted. ) bandwidth crosstalk off isolation
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 7 / 11 u m2268/UM2268A test circuits t est circuit 1. switching timing ( ton, t off ) test circuit 2. break - before - make timing test circuit 3. off - isolation n c n o r s i n g n d c o m c l r l g n d v o u t v o l v o h g n d v + i n p u t - i n o u t p u t - v o u t 9 0 % 9 0 % 9 0 % 9 0 % 1 0 % 1 0 % v c c / 2 v c c / 2 t o n t o f f t r i s e = 2 . 5 n s t f a l l = 2 . 5 n s v + c o m c l * r l v o u t v c c v c c n c n o v + c o n t r o l i n p u t i n g n d v + 0 v v o u t 5 0 % t b b m 0 . 9 * v o u t c o n t r o l i n p u t t r = t f = 2 . 5 n s ( 1 0 - 9 0 % ) c l * i n c l u d e s f i x t u r e a n d s t r a y c a p a c i t a n c e v s e l g n d g n d g n d g n d g n d g n d r t r s v s v o u t v i n r t n e t w o r k a n a l y z e r o f f - i s o l a t i o n = 2 0 l o g ( v o u t / v i n ) c o m n o / n c i n = 0 v / v c c
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 8 / 11 u m2268/UM2268A test circuit 4. channel - to - channel crosstal k test circuit 5. bandwidth test circuit 6. charge injection test v s e l g n d g n d g n d g n d g n d r s v s v o u t v i n r t n e t w o r k a n a l y z e r g n d r t r s a n d r t a r e f u n c t i o n s o f t h e a p p l i c a t i o n e n v i r o n m e n t ( 5 0 , 7 5 o r 1 0 0 ) c r o s s t a l k = 2 0 l o g ( v o u t / v i n ) n c / n o n c / n o i n = 0 v / v c c v s e l g n d g n d g n d g n d g n d r s v s v o u t v i n r t n e t w o r k a n a l y z e r c o m n c / n o i n = 0 v / v c c c l * g n d v s e l g n d g n d v s r s v i n n c / n o i n c l * i n c l u d e s f i x t u r e a n d s t r a y c a p a c i t a n c e g e n e r a t o r v o u t v c c 0 v o f f o n o f f v o u t i n p u t - v s e l v o u t q = v o u t * c l c o m
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 9 / 11 u m2268/UM2268A package information um2268 qfn 10 1.81.4 outline drawing dimensions symbol millim eters m in typ max a 0.50 0.55 0.60 a1 0.00 - 0.05 a3 0.15ref d 1.35 1.40 1.45 e 1.75 1.80 1.85 b 0.15 0.20 0.25 l 0.30 0.40 0.50 l1 0.40 0.50 0.60 e 0.40bsc land pattern notes: 1. compound dimension: 1 .8 0 1. 4 0; 2. unit: mm; 3.general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation d e b l 1 l e a 1 a a 3 t o p v i e w b o t t o m v i e w s i d e v i e w p i n 1 i d e n t i f i c a t i o n 0 . 6 6 3 1 . 7 0 9 0 . 5 6 3 2 . 1 0 1 0 0 . 2 2 5 0 . 4 0
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 10 / 11 u m2268/UM2268A UM2268A qfn 10 2.1 1. 6 outline drawing dimensions symbol millimeter s min typ max a 0.50 0.55 0.60 a1 0.00 - 0.05 a3 0.15 ref d 2.05 2.10 2.15 e 1.55 1.60 1.65 l 0.35 0.40 0.45 l1 0.40 0.45 0.50 e 0.50bsc land pattern notes: 1. compound dimension: 2.10 1.60 ; 2. unit: mm; 3.general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation d e a a 3 a 1 t o p v i e w s i d e v i e w b o t t o m v i e w e b l 0 . 8 0 . 3 l 1 1 . 6 2 0 . 1 1 0 . 5 6 1 . 1 2 0 . 5 0 0 . 3 5 0 . 2 5
_____________________________________________________ ___________________ http://www.union - ic.com rev. 07 feb .20 1 4 11 / 11 u m2268/UM2268A i mportant notice the information in this document has been carefully reviewed and is believed to be accurat e. nonetheless, this document is subject to change without notice. union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a p erson or organization of any update. union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. union semiconductor, inc add : 2 f, no. 3 , lane647 songtao road, shanghai 201203 tel: 021 - 5109 3966 fax: 021 - 51026018 website: www.union - ic.com

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