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1 ? fn7357.2 caution: these devices are sensitive to electrostatic 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. EL5106, el5306 350mhz fixed gain amplifiers with enable the EL5106 and el5306 are fixed gain amplifiers with a bandwidth of 350mhz. 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. with a supply current of just 1.5ma and the ability to run from a single supply voltage from 5v to 12v, these amplifiers are also ideal for handheld, portable or battery powered equipment. the EL5106 and el5306 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 EL5106 is offered in the 6-pin sot-23 and the industry- standard 8-pin so packages and the el5306 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) 350mhz -3db bw (a v = 2) 1.5ma supply current per amplifier fast enable/disable single and dual supply operation, from 5v to 12v available in sot-23 packages 450mhz, 3.5ma product available (el5108 & el5308) applications battery powered equipment handheld, portable devices video amplifiers cable drivers rgb amplifiers ordering information part number package tape & reel pkg. dwg. # EL5106iw-t7 6-pin sot-23 7? mdp0038 EL5106is 8-pin so - mdp0027 EL5106is-t7 8-pin so 7? mdp0027 EL5106is-t13 8-pin so 13? mdp0027 el5306is 16-pin so (0.150?) - mdp0027 el5306is-t7 16-pin so (0.150?) 7? mdp0027 el5306is-t13 16-pin so (0.150?) 13? mdp0027 el5306iu 16-pin qsop - mdp0040 el5306iu-t7 16-pin qsop 7? mdp0040 el5306iu-t13 16-pin qsop 13? mdp0040 data sheet november 18, 2003
2 pinouts EL5106 (8-pin so) top view EL5106 (6-pin sot-23) top view el5306 (16-pin so, qsop) top view 1 2 3 4 8 7 6 5 - + nc in- in+ vs- ce vs+ out nc 1 2 3 6 4 5 - + out vs- in+ vs+ in- ce 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- EL5106, el5306
3 absolute maximum 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 = +1 250 mhz a v = -1 380 mhz a v = +2 350 mhz bw1 0.1db bandwidth 20 mhz sr slew rate v o = -2.5v to +2.5v, a v = +2 3000 4500 v/s t s 0.1% settling time v out = -2.5v to +2.5v, a v = 2 16 ns e n input voltage noise 2.8 nv/ hz i n + in+ input current noise 6pa/ hz dg differential gain error (note 1) a v = +2 0.02 % dp differential phase error (note 1) a v = +2 0.04 dc performance v os offset voltage -10 1 10 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 1 1.1 % r f , r g internal r f and r g 325 ? input characteristics cmir common mode input range 3 3.3 v +i in + input current 1.5 7 a -i in - input current -7 -1.5 a r in input resistance at i n +2m ? c in input capacitance 1pf output characteristics v o output voltage swing r l = 150 ? to gnd 3.4 3.6 v r l = 1k ? to gnd 3.7 3.85 v i out output current r l = 10 ? to gnd 120 125 ma supply i son supply current - enabled no load, v in = 0v 1.36 1.5 1.65 ma i soff supply current - disabled no load, v in = 0v 12 25 a psrr power supply rejection ratio dc, v s = 4.75v to 5.25v 70 db EL5106, el5306
4 enable t en enable time 280 ns t dis disable time 400 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 note: 1. standard ntsc test, ac signal amplitude = 286mv p-p , f = 3.58mhz 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 EL5106 8-pin so EL5106 6-pin sot-23 el5306 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 EL5106, el5306
5 typical perfor mance curves figure 1. frequency response figure 2. frequency response for various c l figure 3. group delay vs frequency figure 4. bandwidth vs supply voltage figure 5. peaking vs supply voltage figure 6. power supply rejection ratio 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, 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 a v = 2, v s = 5v, r l = 150 ? 100m c l = 10pf c l = 6.8pf c l = 2.2pf c l = 0pf 1 frequency (hz) 10 100 1000 delay time (ns) 0.8 0.6 0.4 0.2 0 1 1.2 1.4 1.6 r l = 150 ? a v = 1, 2 a v = -1 4.5 frequency (hz) 55.5 11 bw (mhz) 250 200 150 300 350 400 450 r l = 150 ? 6 7 7.5 8 8.5 9 9.5 10 10.5 6.5 a v = -1 a v = 2 a v = 1 4.5 v s (v) 55.5 11 peaking (db) 0.2 0.1 0 0.4 0.6 0.8 1 r l = 150 ? 6 7 7.5 8 8.5 9 9.5 10 10.5 6.5 a v = -1 a v = 1 0.9 0.7 0.5 0.3 a v = 2 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 psrr+ -10 -30 -50 -70 psrr- psrr (db) EL5106, el5306
6 figure 7. output impedance vs frequency figure 8. supply current vs supply voltage (per amplifier) figure 9. harmonic distortion vs frequency figure 10. enabled response figure 11. disabled response figure 12. package power dissipation vs ambient temperature typical perfor mance curves (continued) 10k frequency (hz) 100k 1m 100m impedance ( ? ) 1 0.1 10 100 10m 4.5 v s (v) 55.5 11 i s (ma) 1.2 1.3 1.4 1.5 1.6 6 7 7.5 8 8.5 9 9.5 10 10.5 6.5 1.55 1.45 1.35 1.25 i s - i s + 0 -10 -20 -40 -50 -80 -90 0 10203040 60 frequency (mhz) distortion (db) 50 -70 -30 -60 hd3 hd2 v s = 5v, a v = 2, r l = 150 ? , v op-p = 2v ch1 2.00v/div ch2 1.00v/div m = 100ns ch1 2.00v/div ch2 1.00v/div m = 100ns 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 qsop16 EL5106, el5306
7 applications information product description the EL5106 and el5306 are fixed gain amplifier that offers a wide -3db bandwidth of 350mhz and a low supply current of 1.5ma. they work with supply voltages ranging from a single 5v to 12v and they are also capable of swinging to within 1.2v of either supply on the output. these combinations of high bandwidth and low power make the EL5106 and el5306 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 el5191 with 1ghz on a 9ma supply current or the el5162 with 300mhz on a 4ma supply current. versions include single, dual, and triple amp packages with 5-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 EL5106 and el5306 amplifiers can be disabled placing their output in a high impedance state. when disabled, the amplifier supply current is reduced to <25a. the EL5106 and el5306 are disabled when its ce pin is pulled up to within 1v of the positive supply. similarly, the amplifier is enabled by floating or pulling the 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 EL5106 and el5306 to be enabled by tying ce to ground, even in 5v single supply applications. the ce pin can be driven from cmos outputs. gain setting the EL5106 and el5306 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 13 shows the amplifier in gain of +2 configuration. the gain error is 2% maximum. figure 14 shows the amplifier in gain of -1 configuration. for gain of +1, in+ and in- should be connected together as shown in figure 15. 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 13. package power dissipation vs ambient temperature typical perfor mance curves (continued) 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 255075100 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 14. a v = +2 - + 325 ? 325 ? in- in+ EL5106, el5306
8 supply voltage range and single-supply operation the EL5106 and el5306 have been designed to operate with supply voltages having a span of greater than or equal to 5v and less than 11v. in practical terms, this means that the EL5106 and el5306 will operate on dual supplies ranging from 2.5v to 5v. with single-supply, the EL5106 and el5306 will 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 EL5106 and el5306 have an input range which extends to within 2v of either supply. so, for example, on 5v supplies, the EL5106 and el5306 have an input range which spans 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 range is larger because of the increased negative swing due to the external pull-down resistor to ground. figure 16 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 circuitries have been incorporated in the EL5106 and el5306 to reduce the variation of output impedance with current output. this results in dg and dp specifications of 0.02% and 0.04, while driving 150 ? at a gain of 2. output drive capability in spite of its low 1.5ma of supply current per amplifier, the EL5106 and el5306 are capable of providing a maximum of 125ma 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 EL5106 and el5306 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. figure 15. a v = -1 - + 325 ? 325 ? in- in+ figure 16. a v = +1 - + 325 ? 325 ? in- in+ figure 17. - + 325 ? 325 v in +5 0.1f 1k 1k 0.1f +5 v out EL5106, el5306
9 current limiting the EL5106 and el5306 have no internal current-limiting circuitry. if the output is shorted, 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 EL5106 and el5306, 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 EL5106 and el5306 to remain in the safe operating area. these parameters are calculated as follows: 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 bias supply current v outmax = maximum output voltage (required) r l = load resistance so package outline drawing t jmax t max ja npd max () + = pd max 2 ( v s i smax ) v s ( - v outmax ) v outmax r l ---------------------------- + = EL5106, el5306
10 sot-23 package outline drawing EL5106, el5306
11 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications can be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corporation 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 EL5106, el5306

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