vishay siliconix dg3157a, dg3157b document number: 68628 s-81944-rev. c, 25-aug-08 www.vishay.com 1 low voltage, 300-mhz - 3 db band width, spdt analog switch with power down protection (2:1 multiplexer/de multiplexer bus switch) features ? ultra small miniqfn6 package of 1 mm x 1.2 mm ? wide operation voltage range: 1.8 v to 5.5 v ? useful in both analog and digital signal switching ? 300 mhz - 3 db bandwidth ? power down safe design ? low voltage logic threshold: v th (high) = 1.2 v at v+ = 3.3 v ? minimal propagation delay ? break-before-make switching ? zero bounce in flow-through mode ? > 300 ma latch up current per jesd78 ? > 8 kv esd/hbm ? dg3157a version has internal pull down resistor on control pin s description the dg3157a, dg3157b are high-speed single-pole double-throw, low voltage switch. using sub-micro cmos technology, the dg3157a, dg3157b achieves low on- resistance and negligible propagation delay. the dg3157a, dg3157b can handle both analog and digital signals and permits signals with amplitudes of up to v cc to be transmitted in either direction. select pin of control logic input can be over the v+. when the select pin is low, b 0 is connected to the output a pin. when the select pin is high, b 1 is connected to the output a pin. the path that is open will have a high-impedance state with respect to the output a pin. break before make is guaranteed. the dg3157a has an internal pull down resistor on the control pin s, while the dg3157b does not. functional block diagram and pin configuration * pb containing terminations are not rohs compliant, exemptions may apply. g n d a v + b 1 miniqfn-6 top v ie w s 2 3 4 5 6 1 device markin g : e b 0 dg3157a g n d a v + b 1 dg3157b s 2 3 4 5 6 1 device markin g : d b 0 miniqfn-6 top v ie w truth table logic input (s) function 0 b 0 connected to a 1 b 1 connected to a ordering information temp. range package part number - 40 c to 85 c miniqfn-6 dg3157adn-t1-e4 DG3157BDN-T1-E4 a v aila b le p b -free rohs* compliant
www.vishay.com 2 document number: 68628 s-81944-rev. c, 25-aug-08 vishay siliconix dg3157a, dg3157b notes: a. signals on a, or b or s exceeding v+ will be clamped by internal diodes. limit forwar d diode current to maximum current ratin gs. b. all leads welded or soldered to pc board. c. derate 2.0 mw/c above 70 c. absolute maximum ratings parameter limit unit reference v+ to gnd - 0.3 to + 6 v s, a, b a - 0.3 to (v+ + 0.3) continuous current (any terminal) 50 ma peak current (pulsed at 1 ms, 10 % duty cycle) 200 storage temperature d-suffix - 65 to 150 c power dissipation (packages) b miniqfn-6 c 160 mw specifications parameter symbol test conditions unless otherwise specified v+ = 3.0 v, v sl = 0.5 v, v sh = 2.0 v e temp. a limits - 40 c to 85 c unit min. b typ. c max. b dc characteristics high level input voltage v sh v+ = 1.65 to 1.95 v full 1.2 v v+ = 2.0 to 2.6 v 1.4 v+ = 2.7 to 3.6 v 2.0 v+ = 4.5 to 5.5 v 2.4 low level input voltage v sl v+ = 1.65 to 1.95 v 0.3 v+ = 2.0 to 2.6 v 0.4 v+ = 2.7 to 3.6 v 0.5 v+ = 4.5 to 5.5 v 0.8 on-resistance r on v+ = 4.5 v v bn = 0 v, i a = 30 ma full 4.8 7 v bn = 2.4 v, i a = - 30 ma 5.7 12 v bn = 4.5 v, i a = - 30 ma 10.3 15 v+ = 3.0 v v bn = 0 v, i a = 24 ma 5.9 9 v bn = 3.0 v, i a = - 24 ma 13.7 20 v+ = 2.3 v v bn = 0 v, i a = 8 ma 712 v bn = 2.3 v, i a = - 8 ma 16.2 30 v+ = 1.65 v v bn = 0 v, i a = 4 ma 9.2 20 v bn = 1.65 v, i a = - 4 ma 24 50 on-resistance flatness r flat 0 < v bn < v+ v+ = 4.5 v, i a = - 30 ma room 8 v+ = 3.0 v, i a = - 24 ma 13 v+ = 2.3 v, i a = - 8 ma 24 v+ = 1.65 v, i a = - 4 ma 89 on-resistance matching between channels r on v+ = 4.5 v, v bn = 3.15 v, i a = - 30 ma 0.8 v+ = 3.0 v, v bn = 2.1 v, i a = - 24 ma 0.1 v+ = 2.3 v, v bn = 1.6 v, i a = - 8 ma 0.2 v+ = 1.65 v, v bn = 1.15 v, i a = - 4 ma 0.9 input leakage current i s v+ = 5.5 v, v a = 5.5 v, v s = 0.8 v, 2.4 v dg3157b full - 1.0 1.0 a dg3157a - 1.0 2.5 7.0 off stage switch leakage i bn(off) v+ = 5.5 v, v a /v b = 0 v/5.5 v room full - 0.1 - 1.0 0.1 1.0 on state switch leakage i bn(on) v+ = 5.5 v, v a /v b = 0 v/5.5 v room full - 0.1 - 1.0 0.1 1.0
document number: 68628 s-81944-rev. c, 25-aug-08 www.vishay.com 3 vishay siliconix dg3157a, dg3157b notes: a. room = 25 c, full = as determined by the operating suffix. b. the algebraic convention whereby the most negative value is a minimum and the most pos itive a maximum, is used in this data s heet. c. typical values are for design aid only, no t guaranteed nor subject to production testing. d. guarantee by design, nor su bjected to production test. e. v s = input voltage to perform proper function. f. guaranteed by design and not production te sted. the bus switch propagati on delay is a function of th e rc time constant contri buted by the on-resistance and the specified load capacitan ce with an ideal voltage source (zer o output impedance) driving the switch. stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indi cated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended per iods may affect device reliability. specifications parameter symbol test conditions unless otherwise specified v+ = 3.0 v, v sl = 0.5 v, v sh = 2.0 v e temp. a limits - 40 c to 85 c unit min. b typ. c max. b power supply power supply range v+ full 1.65 5.5 v quiescent supply current i+ v+ = 5.5 v, v a = v+ or gnd room full 1 10 a ac electrical characteristice prop delay time f t phl /t plh v a = 0 v v+ = 1.65 to 1.95 v full 1.5 ns v+ = 2.3 to 2.7 v full 0.8 v+ = 3.0 to 3.6 v full 0.4 v+ = 4.5 to 5.5 v full 0.3 output enable time f t pzl /t pzh v load = 2 x v+ for t pzl v load = 0 v for t pzh v+ = 1.65 to 1.95 v room full 27 50 v+ = 2.3 to 2.7 v room full 15 45 v+ = 3.0 to 3.6 v room full 10 30 v+ = 4.5 to 5.5 v room full 725 output disable time f t plz /t phz v load = 2 x v+ for t plz v load = 0 v for t phz v+ = 1.65 to 1.95 v room full 16 45 v+ = 2.3 to 2.7 v room full 10 40 v+ = 3.0 to 3.6 v room full 835 v+ = 4.5 to 5.5 v room full 621 break-before-make time d t bbm v+ = 1.65 to 1.95 v full 0.5 11 v+ = 2.3 to 2.7 v full 0.5 6 v+ = 3.0 to 3.65 full 0.5 4 v+ = 4.5 to 5.5 v full 0.5 3 charge injection d q c l = 1 nf, v gen = 0 v r gen = 0 v+ = 5 v room 7 pc v+ = 3.3 v room 5 off isolation d oirr r l = 50 , f = 10 mhz room - 57 db crosstalk d x ta l k room - 64 - 3 db bandwidth d bw r l = 50 room 300 mhz total harmonic distortion d thd r l = 600 , 0.5 vp-p f = 600 hz - 20 khz room 0.016 % capacitance control pin capacitance d c s v+ = 0 v room 3.7 pf b port off capacitance d c io-b v+ = 5 v room 7 a port capacitance when switch enable d c io-a(on) room 19
www.vishay.com 4 document number: 68628 s-81944-rev. c, 25-aug-08 vishay siliconix dg3157a, dg3157b logic diagram positive logic ac loading and waveforms notes: ? c l includes probe and jig capacitance. ? waveform 1 is for an output with internal conditions such t hat the output is low except when disabled by the output control. ? waveform 2 is for an output with internal conditions such t hat the output is high except when disabled by the output control. ? all input pulses are supplied by generators having the followi ng characteristics: input prr = 1.0 mhz, t w = 500 ns. ? the outputs are measured one at a time with one transition per measurement. ? v ld = 2 v+. figure 1. a b 1 b 0 s 1 6 3 4 figure 2. ac test circuit from output under test v ld r l 500 c l 50 pf load circuit r l 500 open gnd sw t plh /t phl open t plz /t pzl v ld t phz /t pzh gnd test sw figure 3. ac waveforms t r = 2.5 ns t f = 2.5 ns t f = 2.5 ns t r = 2.5 ns v+ v+ gnd gnd logic input switch input 10 % 10 % 10 % 10 % 50 % 50 % 50 % 50 % 50 % 50 % 50 % 90 % 90 % 90 % 90 % t w output output output t pl h t ph l v oh v ol t pz l t pl z t pz h t ph z 50 % v ol + 0.3 v v ol v oh v oh 0.3 v v ld 2 0 v w aveform 1 sw at v ld w aveform 2 sw at gnd propagation delay t imes enable and disable t ime-low- and high-level enabling
document number: 68628 s-81944-rev. c, 25-aug-08 www.vishay.com 5 vishay siliconix dg3157a, dg3157b typical characteristics t a = 25 c, unless otherwise noted r on vs. v a and supply voltage v a - analog v oltage ( v ) r o n - on-resistance ( ) 0 10 20 30 40 50 60 70 8 0 90 100 012345 v + = 3.0 v i b = + 24 ma v + = 2.3 v i b = + 8 ma v + = 1.65 v i b = + 4 ma v + = 4.5 v i b = + 30 ma t = 25 c switching threshold vs. supply voltage 0.0 0.5 1.0 1.5 2.0 123456 v + - s u pply v oltage ( v ) v t - s w itching threshold ( v ) insertion loss, off-isolation, crosstalk vs. frequency - 100 - 90 - 8 0 - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 10 freq u ency (hz) loss, oirr, x talk (db) v + = 3.0 v r l = 50
www.vishay.com 6 document number: 68628 s-81944-rev. c, 25-aug-08 vishay siliconix dg3157a, dg3157b test circuits vishay siliconix maintains worldwide manufacturing capability. products may be manufactured at one of several qualified locatio ns. reliability data for silicon tech- nology and package reliability represent a com posite of all qualified locations. for related documents such as package/tape dra wings, part marking, and reliability data, see http://www.vishay.com/ppg?68628 . figure 4. break-before-make interval c l (includes fixture and stra y capacitance) b 0 b 1 b 1 b 0 0 v logic input switch output v o b 0 = b 1 t r < 5 ns t f < 5 ns 90 % t d t d s a v+ gnd v + c l 35 pf v o r l 50 vv v sh v sl figure 5. charge injection off on on s out q = out x c l c l = 1 nf r gen v out a v s = 0 - v+ s v gen gnd v+ v+ in depends on switch configuration: input polarity determined by sense of switch. + v a b 0 or b 1 figure 6. off-isolation s gnd 0 v, 2.4 v 10 nf a off i sol a ti on = 20 l o g v a v b 0 /b 1 r l analyzer v+ v + b or b 1 0 figure 7. channel off/on capacitance f = 1 mhz s a gnd 0 v, 2.4 v meter hp4192a impedance analyzer or e q uivalent 10 nf v+ v+ b 0 or b 1
vishay siliconix package information document number: 74497 12-feb-07 www.vishay.com 1 mini qfn-6l case outline dim millimeters inches min. nam. max. min. nam. max. a 0.50 0.55 0.60 0.0197 0.0217 0.0236 a1 0.00 - 0.05 0.000 - 0.002 b 0.15 0.20 0.25 0.006 0.008 0.010 c 0.15 ref 0.006 ref d 1.15 1.20 1.25 0.045 0.047 0.049 e 0.95 1.00 1.05 0.037 0.039 0.041 e 0.40 bsc 0.016 bsc l 0.30 0.35 0.40 0.012 0.014 0.016 l1 0.40 0.45 0.50 0.016 0.018 0.020 ecn t-07039-rev. a, 12-feb-07 dwg: 5958
document number: 91 000 www.vishay.com revision: 11-mar-11 1 disclaimer legal disclaimer notice vishay all product, product specifications and data ar e subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectivel y, vishay), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicab le law, vishay disc laims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, incl uding without limitation specia l, consequential or incidental dama ges, and (iii) any and all impl ied warranties, including warran ties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of pro ducts for certain types of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in gene ric applications. such statements are not binding statements about the suitability of products for a partic ular application. it is the customers responsibility to validate that a particu lar product with the properties described in th e product specification is su itable for use in a particul ar application. parameters provided in datasheets an d/or specifications may vary in different applications and perfo rmance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vishays term s and conditions of purchase, including but not limited to the warranty expressed therein. except as expressly indicated in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vishay product co uld result in person al injury or death. customers using or selling vishay products not expressly indicated for use in such applications do so at their own risk and agr ee to fully indemnify and hold vishay and it s distributors harmless from and against an y and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that vis hay or its distributor was negligent regarding the design or manufact ure of the part. please contact authorized vishay personnel t o obtain written terms and conditions regarding products designed fo r such applications. no license, express or implied, by estoppel or otherwise, to any intelle ctual property rights is gran ted by this document or by any conduct of vishay. product names and markings noted herein may be trademarks of their respective owners.
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