View EL5308_5050883.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1 ? fn7358.2 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 321-724-7143 | intersil (and design) is a registered trademark of intersil americas inc. copyright ? intersil americas inc. 2003. all rights reserved. elantec is a registered trademark of elantec semiconductor, inc. all other trademarks mentioned are the property of their respective owners. el5108, EL5308 450mhz fixed gain amplifiers with enable the el5108 and EL5308 are fixed gain amplifiers with a bandwidth of 450mhz. this makes these amplifiers ideal for today?s high speed video and monitor applications. they feature internal gain-setting resistors and can be configured in a gain of +1, -1 or +2. the same bandwidth is seen in both gain-of-1 and gain-of-2 applications. the el5108 and EL5308 also incorporate an enable and disable function to reduce the supply current to 25a typical per amplifier. allowing the ce pin to float or applying a low logic level will enable the amplifier. the el5108 is offered in the 6-pin sot-23 and the industry- standard 8-pin so packages and the EL5308 is available in the 16-pin so and 16-pin qsop packages. all operate over the industrial temperature range of -40c to +85c. features ? gain selectable (+1, -1, +2) ? 450mhz -3db bw (a v = -1, +1, +2) ? 3.5ma supply current per amplifier ? single and dual supply operation, from 5v to 12v ? available in sot-23 packages ? 350mhz, 1.5ma product available (el5106 & el5306) applications ? video amplifiers ? cable drivers ? rgb amplifiers ordering information part number package tape & reel pkg. dwg. # el5108iw-t7 6-pin sot-23 7? mdp0038 el5108is 8-pin so - mdp0027 el5108is-t7 8-pin so 7? mdp0027 el5108is-t13 8-pin so 13? mdp0027 EL5308is 16-pin so (0.150?) - mdp0027 EL5308is-t7 16-pin so (0.150?) 7? mdp0027 EL5308is-t13 16-pin so (0.150?) 13? mdp0027 EL5308iu 16-pin qsop - mdp0040 EL5308iu-t7 16-pin qsop 7? mdp0040 EL5308iu-t13 16-pin qsop 13? mdp0040 data sheet november 25, 2003
2 pinouts el5108 (8-pin so) top view el5108 (6-pin sot-23) top view EL5308 (16-pin so, qsop) top view - + nc in- in+ vs- ce vs+ out nc 1 2 3 4 8 7 6 5 - + out vs- in+ vs+ in- ce 1 2 3 6 4 5 1 2 3 4 16 15 14 13 5 6 7 12 11 10 8 9 - + - + - + ina+ cea vs- ceb inb+ nc cec inc+ ina- outa vs+ outb inb- nc outc inc- el5108, EL5308
3 absolute maxi mum ratings (t a = 25c) supply voltage between v s + and v s - . . . . . . . . . . . . . . . . . . . 13.2v maximum continuous output current . . . . . . . . . . . . . . . . . . . 50ma operating junction temperature . . . . . . . . . . . . . . . . . . . . . . . 125c power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see curves pin voltages. . . . . . . . . . . . . . . . . . . . . . . . . v s - -0.5v to v s + +0.5v storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65c to +150c ambient operating temperature . . . . . . . . . . . . . . . .-40c to +85c caution: stresses above those listed in ?absolute maximum ratings? may cause permanent damage to the device. this is a stress o nly rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. important note: all parameters having min/max specifications are guaranteed. typical values are for information purposes only. u nless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: t j = t c = t a electrical specifications v s + = +5v, v s - = -5v, r l = 150 ? , t a = 25c unless otherwise specified. parameter description conditions min typ max unit ac performance bw -3db bandwidth a v = +1 440 mhz a v = -1 445 mhz a v = +2 450 mhz bw1 0.1db bandwidth a v = +2 40 mhz sr slew rate v o = -2.5v to +2.5v, a v = +2 3500 4500 v/s t s 0.1% settling time v out = -2.5v to +2.5v, a v = +2 10 ns e n input voltage noise 2nv/ hz i n input current noise f = 2khz 12 pa/ hz dg differential gain error (note 1) a v = +2 0.01 % dp differential phase error (note 1) a v = +2 0.01 dc performance v os offset voltage -5 +3 +5 mv t c v os input offset voltage temperature coefficient measured from t min to t max 5v/c a e gain error v o = -3v to +3v 0.07 1 % input characteristics cmir common mode input range 3 3.3 v +i in + input current 28a r in input resistance at i n +0.7m ? c in input capacitance 1pf output characteristics v o output voltage swing r l = 150 ? to gnd 3.6 3.8 v r l = 1k ? to gnd 3.8 4.0 v i out output current r l = 10 ? to gnd 120 135 ma supply i son supply current - enabled no load, v in = 0v 3.18 3.5 3.85 ma i soff supply current - disabled no load, v in = 0v 9 25 a psrr power supply rejection ratio dc, v s = 4.75v to 5.25v 80 db el5108, EL5308
4 notes: 1. standard ntsc test, ac signal amplitude = 286mv p-p , f = 3.58mhz 2. measured from the application of the ce logic signal until the output voltage is at the 50% point between initial and final values enable t en enable time 280 ns t dis disable time (note 2) 560 ns i ihce ce pin input high current ce = v s +0.86a i ilce ce pin input low current ce = v s -0-0.1a v ihce ce input high voltage for power-down v s + -1 v v ilce ce input low voltage for power-down v s + -3 v electrical specifications v s + = +5v, v s - = -5v, r l = 150 ? , t a = 25c unless otherwise specified. (continued) parameter description conditions min typ max unit pin descriptions el5108 8-pin so el5108 6-pin sot-23 EL5308 16-pin so, qsop pin name function equivalent circuit 1, 5 6, 11 nc not connected 2 4 9, 12, 16 in- inverting input circuit 1 3 3 1, 5, 8 in+ non-inverting input (see circuit 1) 4 2 3 vs- negative supply 6 1 10, 13, 15 out output circuit 2 7 6 14 vs+ positive supply 8 5 2, 4, 7 ce chip enable circuit 3 r g r f in- in+ r f out v s + v s - ce el5108, EL5308
5 typical performance curves figure 1. frequency respon se figure 2. phase response figure 3. frequency response vs output voltage figure 4. frequency response vs r l figure 5. frequency response for various c l figure 6. group delay vs frequency 100k frequency (hz) 1m 10m 1g normalized gain (db) 1 0 -1 -2 -3 -4 -5 2 3 4 5 v s = 5v, v in = 200mv p-p , r l = 150 ? 100m a v = -1 a v = 2 a v = 1 100k frequency (hz) 1m 10m 1g phase () -45 -90 -135 -180 -225 -270 -315 0 45 90 135 v s = 5v, v in = 200v p-p , r l = 150 ? 100m a v = -1 a v = 1 a v = 2 100k frequency (hz) 1m 10m 1g gain (db) 7 6 5 4 3 2 1 8 9 10 11 v s = 5v, a v = 2, r l = 150 ? 100m v op-p = 400mv v op-p = 2v 100k frequency (hz) 1m 10m 1g gain (db) 7 6 5 4 3 2 1 8 9 10 11 v s = 5v, a v = 2 100m r l = 500 ? r l = 150 ? r l = 100 ? r l = 50 ? 100k frequency (hz) 1m 10m 1g gain (db) 7 6 5 4 3 2 1 8 9 10 11 v s = 5v, a v = 2, r l = 150 ? 100m c l = 6.8pf c l = 0pf c l = 4.7pf c l = 2.2pf 100k frequency (hz) 1m 10m 1g delay (ns) 0.6 0.4 0.2 0 0.8 1 1.2 v s = 5v, r l = 150 ? 100m a v = -1 a v = 1 a v = 2 el5108, EL5308
6 figure 7. input to output isolation vs frequency (for disable mode) figure 8. output impedence vs frequency figure 9. voltage and current noise vs frequency figure 10. power supply rejection ratio vs frequency figure 11. bandwidth vs supply voltage figure 12. peaking vs supply voltage typical performance curves (continued) 100k frequency (hz) 1m 10m 1g gain (db) -25 -35 -45 -55 -65 -75 -85 -15 -5 5 15 a v = 2, r l = 150 ? 100m 10k frequency (hz) 100k 1m 100m impedence ( ? ) 0.1 0.01 0.002 1 10 100 10m 100 frequency (hz) 1k 10m 1 10 1000 10k 100k 1m 100 i n v n v n (nv/ hz), i n (pa/ hz) 1.00e+03 frequency (hz) 1.00e+04 1.00e+08 psrr (db) -80 -60 -40 -20 0 1.00e+05 1.00e+06 1.00e+07 -10 -30 -50 -70 psrr (db) v s = 5v, a v = 2 4.5 v s (v) 55.5 11 bandwidth (mhz) 340 320 300 380 440 480 r l = 150 ? 6 77.588.599.51010.5 6.5 460 420 360 a v = -1 a v = 1 a v = 2 400 4.5 v s (v) 55.5 11 peaking (db) 0.6 0.4 0.2 0.8 1 1.2 1.4 r l = 150 ? 6 77.588.599.51010.5 6.5 a v = -1 a v = 2 a v = 1 el5108, EL5308
7 figure 13. distortion vs frequency figure 14. supply current vs supply voltage figure 15. large signal response figure 16. small signal response figure 17. disabled response figure 18. enabled response typical performance curves (continued) 0 frequency (mhz) 10 60 distortion (db) -80 -85 -90 -70 -60 -50 -40 30 40 50 20 -45 -55 -65 -75 hd2 hd3 v s = 5v, a v = 2, r l = 150 ? , v o = 2v p-p 4.5 v s (v) 55.5 11 i s (ma) 2.9 2.7 2.5 3.3 3.5 3.7 3.9 6 77.588.599.51010.5 6.5 i s +, i s - 3.1 10ns/div 1v/div v o = 2v 10ns/div 100mv/div v o = 200mv ch1 2.00v/div ch2 1.00v/div m = 100ns ch1 2.00v/div ch2 1.00v/div m = 100ns el5108, EL5308
8 applications information product description the el5108 and EL5308 are fixed gain amplifiers that offer a wide -3db bandwidth of 450mhz and a low supply current of 3.5ma per amplifier. they work with supply voltages ranging from a single 5v to 10v and they are also capable of swinging to within 1.2v of eith er supply on the output. these combinations of high bandwidth, low power, and high slew rate make the el5108 and EL5308 the ideal choice for many low-power/high-bandwidth applications such as portable, handheld, or battery-powered equipment. for varying bandwidth and higher gains, consider the el5166 with 1ghz on a 9ma su pply current or the el5164 with 600mhz on a 3.5ma supply current. versions include single, dual, and triple amp packages with 6-pin sot-23, 16-pin qsop, and 8-pin or 16-pin so outlines. power supply bypassing and printed circuit board layout as with any high frequency device, good printed circuit board layout is necessary for optimum performance. low impedance ground plane construction is essential. surface mount components are recommended, but if leaded components are used, lead lengths should be as short as possible. the power supply pins must be well bypassed to reduce the risk of oscillation. the combination of a 4.7f tantalum capacitor in parallel with a 0.01f capacitor has been shown to work well when placed at each supply pin. disable/power-down the el5108 and EL5308 amplifiers can be disabled and placing their outputs in a high impedance state. when disabled, the amplifier supply current is reduced to <25a. the el5108 and EL5308 are disabled when the ce pin is pulled up to within 1v of the positive supply. similarly, the amplifier is enabled by floating or pulling its ce pin to at least 3v below the positive supply . for 5v supply, this means that the amplifier will be enabled when ce is 2v or less, and disabled when ce is above 4v. although the logic levels are not standard ttl, this choice of logic voltages allow the el5108 and EL5308 to be enabled by tying ce to ground, even in 5v single supply applications. the ce pins can be driven from cmos outputs. gain setting the el5108 and EL5308 are built with internal feedback and gain resistors. the internal feedback resistors have equal value; as a result, the amplifier can be configured into gain of +1, -1, and +2 without any external resistors. figure 21 shows the amplifier in gain of +2 configuration. the gain error is 2% maximum. figure 22 shows the amplifier in gain of -1 configuration. for gain of +1, in+ and in- should be connected together as shown in figure 23. this configuration avoids the effects of any parasitic capacitance on the in- pin. since the internal feedback and gain resistors change with temperature and process, external resistor should not be used to adjust the gain settings. figure 19. package power dissipation vs ambient temperature figure 20. package power dissipation vs ambient temperature typical performance curves (continued) 1 0.9 0.8 0.6 0.4 0.1 0 0 25 50 75 100 150 ambient temperature (c) power dissipation (w) 125 85 jedec jesd51-3 low effective thermal conductivity test board 0.2 0.7 0.3 0.5 909mw 633mw j a = 2 5 6 c / w so16 (0.150?) ja =110c/w s o t - 2 3 391mw 625mw ja =160c/w so8 j a = 1 5 8 c / w qsop 16 ambient temperature (c) 0 0.4 435mw 1.250w so16 (0.150?) ja =80c/w 1.4 1.2 1 0.8 0.6 0.2 0 25 50 75 100 150 power dissipation (w) 125 85 jedec jesd51-7 high effective thermal conductivity test board 893mw s o t - 2 3 j a = 2 3 0 c / w 0.1 909mw ja =110c/w so8 j a = 1 1 2 c / w q s o p 1 6 figure 21. a v = +2 - + 325 ? 325 ? in- in+ el5108, EL5308
9 supply voltage range and single-supply operation the el5108 and EL5308 have been designed to operate with supply voltages having a s pan of greater than or equal to 5v and less than 12v. in practical terms, this means that they will operate on dual supplies ranging from 2.5v to 5v. with single-supply, they wi ll operate from 5v to 10v. as supply voltages continue to decrease, it becomes necessary to provide input and output voltage ranges that can get as close as possible to the supply voltages. the el5108 and EL5308 have an input range which extends to within 2v of either supply. so, for example, on 5v supplies, the input range is about 3v. the output range is also quite large, extending to within 1v of the supply rail. on a 5v supply, the output is therefore capable of swinging from -4v to +4v. single-supply output r ange is larger because of the increased negative swing due to the external pull-down resistor to ground. figure 24 shows an ac-coupled, gain of +2, +5v single supply circuit configuration. video performance for good video performance, an amplifier is required to maintain the same output impedance and the same frequency response as dc levels are changed at the output. this is especially difficult when driving a standard video load of 150 ? , because of the change in output current with dc level. previously, good differential gain could only be achieved by running high idle currents through the output transistors (to reduce variations in output impedance). special circuitry has been incorporated in the el5108 and EL5308 to reduce the variatio n of output impedance with current output. this results in dg and dp specifications of 0.01% and 0.01, while driving 150 ? at a gain of 2. output drive capability in spite of its low 3.5ma of s upply current per amplifier, the el5108 and EL5308 are capable of providing a maximum of 130ma of output current. driving cables and capacitive loads when used as a cable driver, double termination is always recommended for reflection-free performance. for those applications, the back-termination series resistor will decouple the el5108 and EL5308 from the cable and allow extensive capacitive drive. however, other applications may have high capacitive loads without a back-termination resistor. in these applications, a small series resistor (usually between 5 ? and 50 ? ) can be placed in series with the output to eliminate most peaking. current limiting the el5108 and EL5308 have no internal current-limiting circuitry. if the output is shorte d, it is possible to exceed the absolute maximum rating for output current or power dissipation, potentially resulting in the destruction of the device. power dissipation with the high output drive capability of the el5108 and EL5308, it is possible to exceed the 125c absolute maximum junction temperature under certain very high load current conditions. generally speaking when r l falls below about 25 ? , it is important to calculate the maximum junction temperature (t jmax ) for the application to determine if power supply voltages, load conditions, or package type need to be modified for the el5108 and EL5308 to remain in the safe operating area. these parameters are calculated as follows: figure 22. a v = -1 - + 325 ? 325 ? in- gnd figure 23. a v = +1 - + 325 ? 325 ? in- in+ figure 24. - + 325 ? 325 ? v in +5 0.1f 1k 1k 0.1f +5 v out 4.7f t jmax t max ja npd max () + = el5108, EL5308
10 where: t max = maximum ambient temperature ja = thermal resistance of the package n = number of amplifiers in the package pd max = maximum power dissipation of each amplifier in the package pd max for each amplifier can be calculated as follows: where: v s = supply voltage i smax = maximum supply current of 1a v outmax = maximum output voltage (required) r l = load resistance so package outline drawing pd max 2 ( v s i smax ) v s ( - v outmax ) v outmax r l ---------------------------- + = el5108, EL5308
11 sot-23 package outline drawing el5108, EL5308
12 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications ca n be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corpor ation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com qsop package outline drawing note: the package drawing shown here may not be the latest version. to check the latest revision, please refer to the intersil w ebsite at http://www.intersil.com/design/packages/index.asp el5108, EL5308

▲Up To Search▲

Price & Availability of EL5308

	To Download EL5308 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .