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_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 1/12 um4684 0.5 ? low-voltage dual spdt analog switch um4684h csp10 2.0 1.5 UM4684EEUE msop10 general description the um4684 is a sub 1 ? (0.5 ? at 2.7v) dual spdt analog switch designed for low voltage applications. the um4684 has on-resistance matching(less than 0.05 ? at 2.7v) and flatness (less than 0.2 ? at 2.7v) that are guaranteed over the entire voltage range. additionally, low logic thresholds make the um4684 an ideal interface to low voltage dsp control signals. the um4684 has fast switching speed with break -before-make guaranteed. in the on condition, all switching elements conduct equally in both direc tions. off-isolation and crosstalk is -69db at 100khz. the um4684 is built on high-density low voltage cmos process, and contains the additional benefit of 2000v esd protection. as a committed partner to the community and th e environment, union manufactures this product with lead (pb)-free device terminations. ordering information part number temp. range packaging type marking code shipping qty um4684h -40 to 85 c csp10 2.01.5 a 3000pcs/7 inch tape & reel UM4684EEUE -40 to 85 c msop10 UM4684EEUE 3000pcs/13 inch tape & reel applications features z cellular phones z speaker headset switching z audio and video signal routing z pcmcia cards z battery operated systems z relay replacement z power routing z communication circuits z csp10 & msop10 packages z esd protection>2000v z +1.8v to +5.5v single supply operation z nc switch r on: 0.5 ? (+2.7v supply) z no switch r on: 0.6 ? (+2.7v supply) z r on match between channels: 0.05 ? max (+2.7v supply) z r on flatness over signal range: 0.2 ? max (+2.7v supply) z 1.8v logic compatibility z low crosstalk:-69db (100khz) z high off-isolation:-69db (100khz)
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 2/12 um4684 pin configurations top view pin description pin name csp10 msop-10 function nc_ a1, c1 5, 7 analog switch?normally closed terminal in_ a2, c2 4, 8 digital control input com_ a3, c3 3, 9 analog switch?common terminal no_ a4, c4 2, 10 analog switch?normally open terminal v+ b4 1 positive supply voltage input gnd b1 6 ground um4684h csp10 UM4684EEUE msop10
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 3/12 um4684 function table in_ no_ nc_ 0 off on 1 on off absolute maximum ratings reference to gnd v+ . . . . . . . . . . . . . . . . .. . . . . . . . -0.3 to +6 v in, com, nc, no . . . . . . . .-0.3to (v + + 0.3 v) continuous current (no, nc, com) .300 ma peak current . . . . . . . . . . . .. . . .. . . . . 500 ma (pulsed at 1 ms, 10% duty cycle) storage temperature (d suffix) . . -65 to 150c package solder reflow conditions b ir/convection. . . . . . . . . . . . . . . . . .. 250c esd per method 3015.7 . . . . . . . . . . . . . .> 2 kv power dissipation (packages) c csp10 . . . . . . . . . .. . . . . . . . . . . . . . . .457 mw notes: a. signals on nc, no, or com or in exceeding v+ will be clamped by internal diodes. limit forward diode current to maximum current ratings. b. refer to ipc/jedec (j-std-020b). c. all bumps welded or soldered to pc board. d. derate 5.7 mw/c above 70c. stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only and f unctional operation of the device at these or any other conditions beyond those indicated in the opera tional sections of the specifications are not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability.
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 4/12 um4684 electrical characteristics (v+ =3v, 10% deviation, vin= 0.5 or 1.4v e ) limits (?40 to 85 c) parameter symbol test conditions otherwise unless specified temp a min b typ c max b uni t analog switch analog signal range d v no v nc v com full 0 v + v on-resistance d r on room full 0.5 0.8 1.0 r on flatness d r on flatness room 0.15 on-resistance match between channels d r ds(on) v + = 2.7v, v com = 0.6/1.5v, i no , i nc = 100ma room 0.05 ? i no(off) , i nc(off) room full -2 -20 2 20 switch off leakage current i com(of f) v + = 3.3v, v no , v nc = 0.3v / 3v, v com = 3v / 0.3v room full -2 -20 2 20 channel-on leakage current i com(on) v + = 3.3v, v no , v nc = v com = 0.3v / 3v room full -2 -20 2 20 na digital control input high voltage d v inh full 1.4 input low voltage v inl full 0.5 v input capacitance c in full 10 pf input current i inl or i inh v in = 0 or v + full -1 1 a dynamic characteristics turn-on time t on room full 52 82 90 turn-off time t off v no or v nc = 2.0v, r l = 50 ? , c l = 35pf room full 43 73 78 ns break-before-make time t d v no or v nc = 2.0v, r l = 50 ? , c l = 35pf full 1 6 ns charge injection d q inj c l = 1nf, v gen = 1.5v r gen = 0 ? room 21 pc off-isolation d o irr r l = 50 ? , c l = 5pf, room -69 db
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 5/12 um4684 crosstalk d x talk f = 100khz room -69 -3db bandwidth bw r l = 50 ? , c l = 5pf room 20 mh z no nc off capacitance d c no(off) c nc(off) room room 145 145 channel on capacitance d c no(on) c nc(on) v in = 0 or v + , f = 1mhz room room 406 406 pf power supply power supply range v + full 1.8 5.5 v power supply current i + v in = 0 or v + room full 0.00 1 1.0 1.0 a notes: a. room = 25c, full = as determined by the operating suffix. b. typical values are for design aid only, not guaranteed nor subject to production testing. c. the algebraic convention whereby the most ne gative value is a minimum and the most positive a maximum is used in this data sheet. d. guarantee by design, nor subjected to production test. e. vin = input voltage to perform proper function.
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 6/12 um4684 typical operating characteristics ron vs.vcom and supply voltage 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 vcom - analog voltage (v) ron - on resistance (ohm) v+=1.8v v+=2.5v v+=3.3v v+=5.5v v+=2.0v ron vs.vcom and temperature (nc1) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.5 1.0 1.5 2.0 2.5 3.0 vcom - analog voltage (v) ron - on resistance (ohm) - 40c 25c 85c supply current vs. input switching frequency 0 1 10 100 1000 10000 100000 10 100 1000 10000 100000 1e+06 1e+07 input switching frequency (hz) i+ - supply current (ua) v+=3.0v switching threshold vs. supply voltage (v) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 1.5 2 2.5 3 3.5 4 4.5 5 5.5 v+ - supply voltage (v) vt - switching threshold (v) vinh vinl
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 7/12 um4684 bandwidth vs. frequency off-isolation vs. frequency
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 8/12 um4684 test circuits/timing diagrams
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 9/12 um4684 applications information digital control inputs the um4684 logic inputs accept up to +5.5v regard less of supply voltage. for example, with a +3.3v supply, in_ may be driven low to gnd and high to 5.5v. driving in_ rail-to-rail minimizes power consumption. logic levels for a +1.8v supply are 0.5v (low) and 1.4v (high). analog signal levels analog signals that range over the entire supply vol tage (v+ to gnd) is passed with very little change in on-resistance (see typical operating ch aracteristics). the switches are bidirectional, so the no_, nc_, and com_ pins can be either inputs or outputs. caution do not exceed the absolute maximum ratings becau se stresses beyond the listed ratings may cause permanent damage to devices. proper power-supply sequencing is recommended for all cmos devices. always apply v+ before applying analog signals, especially if the analog signa l is not current limited. if this sequencing is not possible, and if the analog inputs are not curre nt limited to <20ma, add a small signal diode (d1) as shown in figure 6. adding a protection di ode reduces the analog range to a diode drop (about 0.7v) below v+ (for d1). ron increases sli ghtly at low supply voltages. maximum supply voltage (v+) must not exceed +6v. protection di ode d1 also protects against some over voltage situations. no damage will result on figure 6?s circ uit if the supply voltage is below the absolute maximum rating applied to an analog signal pin. figure 6
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 10/12 um4684 package information um4684h csp10 2.0 1.5 outline drawing dimensions millimeters inches symbol min max min max a 0.710 0.7600 0.0280 0.0299 a1 0.225 0.240 0.0089 0.0094 a2 0.485 0.520 0.0191 0.0205 b 0.315 0.335 0.0124 0.0132 d 2.000 2.040 0.0787 0.0803 e 1.500 1.540 0.0591 0.0606 e 0.5 (bsc) 0.0197(bsc) s 0.250 0.270 0.0098 0.0106 land pattern notes: 1. bump is lead free sn/ag/cu; 2. unit: mm; 3. non-solder mask defined copper landing pad; 4. laser mark on silicon die back; back-lapped. tape and reel orientation
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 11/12 um4684 UM4684EEUE msop10 outline drawing dimensions millimeters inches symbol min max min max a 0.820 1.100 0.032 0.043 a1 0.020 0.150 0.001 0.006 a2 0.750 0.950 0.030 0.037 b 0.180 0.280 0.007 0.011 c 0.090 0.230 0.004 0.009 d 2.900 3.100 0.114 0.122 e 2.900 3.100 0.114 0.122 e1 4.750 5.050 0.187 0.199 e 0.50(bsc) 0.020(bsc) l 0.400 0.800 0.016 0.031 0 6 0 6 land pattern notes: 1. compound dimension: 3.003.00; 2. unit: mm; 3. general tolerance0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation
_______________________________________________________________________ http://www.union-ic.com rev.08jun.2012 12/12 um4684 important notice the information in this document has been ca refully reviewed and is believed to be accurate. nonetheless, this document is subjec t 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 person or organization of any update. union rese rves 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: 2f, no. 3, lane 647 songtao road, shanghai 201203 tel: 021-51093966 fax: 021-51026018 website: www.union-ic.com

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