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| 1 ? fn7365.2 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. EL5166, el5167 1.4ghz current feedb ack amplifiers with enable the EL5166 and el5167 amplifiers are of the current feedback variety and exhibit a very high bandwidth of 1.4ghz at a v = +1 and 800mhz at a v = +2. this makes these amplifiers ideal for today's high speed video and monitor applications, as well as a number of rf and if frequency designs. with a supply current of just 8.5ma and the ability to run from a single supply voltage from 5v to 12v, these amplifiers offer very high performance for little power consumption. the EL5166 also incorporates an enable and disable function to reduce the supply current to 13a typical per amplifier. allowing the ce pin to float or applying a low logic level will enable the amplifier. the el5167 is offered in the 5-pin sot-23 package and the EL5166 is available in the 6-pin sot-23 as well as the industry-standard 8-pin so packages. both operate over the industrial temperature range of -40c to +85c. pinouts features ? gain-of-1 bandwidth = 1.4ghz/gain-of-2 bandwidth = 800mhz ? 6000v/s slew rate ? single and dual supply operation from 5v to 12v ? low noise = 1.5nv/ hz ? 8.5ma supply current ? fast enable/disable (EL5166 only) ? 600mhz family - (el5164 and el5165) ? 400mhz family - (el5162 and el5163) ? 200mhz family - (el5160 and el5161) applications ? video amplifiers ? cable drivers ? rgb amplifiers ? test equipment ? instrumentation ? current to voltage converters 1 2 3 5 4 1 2 3 6 4 5 1 2 3 4 8 7 6 5 1 2 3 4 8 7 6 5 el5167 (5-pin sot-23, sc-70) top view - + out vs- in+ vs+ in- - + out vs- in+ vs+ in- ce EL5166 (8-pin so) top view - + nc in- in+ vs- ce vs+ out nc EL5166 (6-pin sot-23) top view ordering information part number package tape & reel pkg. dwg. # EL5166is 8-pin so - mdp0027 EL5166is-t7 8-pin so 7? mdp0027 EL5166is-t13 8-pin so 13? mdp0027 EL5166iw-t7 6-pin sot-23 7? mdp0038 el5167ic-t7 5-pin sc-70 7? p5.049 el5167iw-t7 5-pin sot-23 7? mdp0038 data sheet october 28 2003
2 absolute maxi mum ratings (t a = 25c) supply voltage between v s + and v s - . . . . . . . . . . . . . . . . . . . 12.6v maximum continuous output current . . . . . . . . . . . . . . . . . . . 50ma i out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200ma i into v in +, v in -, enable pins . . . . . . . . . . . . . . . . . . . . . . . . . 4ma 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 die junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125c 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 f = 392 ? for a v = 1, r f = 250 ? for a v = 2, r l = 150 ? , t a = 25c unless otherwise specified. parameter description conditions min typ max unit ac performance bw -3db bandwidth a v = +1 1400 mhz a v = +2 800 mhz bw1 0.1db bandwidth a v = +2 100 mhz sr slew rate v o = -2.5v to +2.5v, a v = +2 4000 6000 v/s t s 0.1% settling time v out = -2.5v to +2.5v, a v = -1 8 ns e n input voltage noise 1.7 nv/ hz i n - in- input current noise 19 pa/ hz i n + in+ input current noise 50 pa/ hz dg differential gain error (note 1) a v = +2 0.01 % dp differential phase error (note 1) a v = +2 0.03 dc performance v os offset voltage -5 -0.5 5 mv t c v os input offset voltage temperature coefficient measured from t min to t max 3.52 v/c r ol transimpedance 0.5 1.1 2.5 m ? input characteristics cmir common mode input range (guaranteed by cmrr test) 3 3.3 v cmrr common mode rejection ratio 52 57 62 db -icmr - input current common mode rejection 0 0.7 1 a/v +i in + input current -25 0.7 25 a -i in - input current -25 8.5 25 a r in input resistance 50 130 250 k ? c in input capacitance 1.5 pf output characteristics v o output voltage swing r l = 150 ? to gnd 3.6 3.8 4.1 v r l = 1k ? to gnd 3.8 4.0 4.2 v i out output current r l = 10 ? to gnd 110 160 200 ma EL5166, el5167 3 supply i son supply current - enabled no load, v in = 0v 7.5 8.5 9.3 ma i soff supply current - disabled no load, v in = 0v 5 13 25 a psrr power supply rejection ratio dc, v s = 4.75v to 5.25v 70 50 db -ipsr - input current power supply rejection dc, v s = 4.75v to 5.25v -0.5 0.2 1 a/v enable (EL5166 only) t en enable time 170 ns t dis disable time 1.25 s i ihce ce pin input high current ce = v s +0-1a i ilce ce pin input low current ce = v s - 5 13 25 a 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, f = 3.58mhz. electrical specifications v s + = +5v, v s - = -5v, r f = 392 ? for a v = 1, r f = 250 ? for a v = 2, r l = 150 ? , t a = 25c unless otherwise specified. (continued) parameter description conditions min typ max unit EL5166, el5167 4 typical performance curves figure 1. frequency respon se as the function of r f figure 2. frequency respo nse as the function of the gain figure 3. freqency response vs c in figure 4. non-inverting frequency response for various c in - (6-pin sot-23) figure 5. inverting frequency response for gain of 1 and 2 figure 6. rise and fall time (6-pin sot-23) 0 3 4 5 -5 -4 -3 -2 -1 1 2 normalized magnitude (db) r f =368 100k 10m 100m 1g frequency (hz) 1m r f =392 r f =662 r f =511 r f =608 r f =698 r f =806 r f =900 r f =1k v cc =5v v ee =-5v r l =150 ? 100k 10m 100m 1g frequency (hz) 1m 4 3 2 1 0 -3 -5 -1 -2 -4 normalized magnitude (db) -6 r g =43 r g =392 r g =186 r g =93 v cc =5v v ee =-5v r l =150 ? r f =392 ? c=0p 5 4 3 2 1 -2 -4 0 -1 -3 normalized magnitude (db) -5 100k 1m 10m 100m 1g frequency (hz) c=1p c=1.5p c=2.5p c=4.7p normalized gain (db) 100k 10m 100m 1g frequency (hz) 1m c=4.7p c=2.5p c=0 c=1.5p v cc =+v v ee =-5v rl=150w v cc =+5v v ee =-5v r l =150 ? r f =r g =392 ? c=1p normalized gain (db) 1m 100m 1g frequency (hz) 10m r f =220 r g =220 r f =220 r g =100 v cc , v ee =5v 0.5v/div 2ns/div EL5166, el5167 5 figure 7. frequency response as the function of the power supply voltage figure 8. inverting amplifier, frequency response as the function of v cc , v ee gain - 1 figure 9. transimpedance magnitude and phase as the function of the frequency figure 10. closed loop output impedance vs frequency (6-pin sot-23) figure 11. psrr +5v figure 12. psrr -5v typical performance curves (continued) normalized gain (db) 100k 1m 10m 100m 1g frequency (hz) r l =150 ? r f =300 ? r g =300 ? 6.0v 5.0v 2.5v 3.0v 1m 100m 1k frequency (hz) 10m normalized gain (db) r l =150 ? r f =220 ? r g =220 ? 2.5v 3.5v 6.0v 5.0v 90 270 180 0 phase ( ) 100k 10m 100m 1g frequency (hz) 1m v cc , v ee =2.5v 10k 100 1k 100k 5.0v 2.5v 6.0v 5.0v 2.5v 10 ? 10m ? 100m ? 1 ? 10k 1m 10m frequency (hz) 100k 100m v cc , v ee =5v gain=2 0 10 20 30 40 50 60 70 psrr (v cc ) (db) 80 100 10k 1m 10m 100m frequency (hz) 1k 100k v cc =5v v ee =-5v r l =150 ? r f =402 ? r g =402 ? 0 10 20 30 40 70 50 60 psrr (v ee ) (db) 80 100 10k 1m 10m 100m frequency (hz) 1k 100k v cc =5v v ee =-5v r l =150 ? r f =402 ? r g =402 ? EL5166, el5167 6 figure 13. common mode rejection as the function of the frequency and power supply voltage figure 14. large signal response figure 15. t out vs frequency and v cc , v ee figure 16. distortion vs frequency figure 17. harmonic distortion vs supply voltage figure 18. harmonic distortion vs supply voltage typical performance curves (continued) -30 0 -80 -70 -60 -50 -40 -20 -10 cmrr (db) 1k 1m 10m 300m frequency (hz) 10k r f =r g =250 ? 100m 2.5v 5.0v 6.0v 3.5v 100k -2 1 2 3 -7 -6 -5 -4 -3 -1 0 normalized magnitude (db) 100k 10m 100m 1g frequency (hz) 1m v cc =5v v ee =-5v r l =150 ? gain=2 load=150 ? input level=3v p-p 2 100 1 400 500 600 700 800 900 1000 frequency (hz) v outp-p (v) 0 300 200 v cc , v ee = 5v 3v 2.5v 1.5 0.5 6v -50 -55 -60 -85 1 6 11 16 26 36 frequency (mhz) distortion (db) 31 21 -70 -65 -75 -80 thd second harmonic third harmonic v cc , v ee =5v, r l =150 ?, a v =2 -74 -76 -78 -80 -82 -86 5678 10 12 total supply voltage (v) distortion (db) 11 9 -84 thd hd2 hd3 f=1mhz, r l =150 ?, a v =2, v op-p =2v 10 0 -10 -20 -30 -90 5678 10 12 total supply voltage (v) distortion (db) 11 9 -50 hd2 -40 -60 -70 -80 f=5mhz, r l =150 ?, a v =2, v o =2v p-p hd3 thd EL5166, el5167 7 figure 19. distortion vs power supply voltage figure 20. distortion vs power supply voltage (EL5166) figure 21. turn on time (EL5166) figure 22. turn off time (EL5166) figure 23. supply current vs supply voltage (EL5166) figure 24. package power dissipation vs ambient temperature typical performance curves (continued) -50 -55 -60 -90 5678 10 12 total supply voltage (v) distortion (db) 11 9 -70 -65 -75 -80 -85 f=10mhz, r l =150 ?, a v =2 v o =2v p-p thd second harmonic third harmonic -50 -55 -60 -80 5678 10 12 total supply voltage (v) distortion (db) 11 9 -70 -65 -75 f=20mhz, r l =150 ?, a v =2 v o =2v p-p thd third harmonic second harmonic 8.5 8.4 8.3 8.2 8.1 7.4 2.5 3 3.5 4 5 6 supply voltage (v) supply current (ma) 5.5 4.5 7.9 8 7.8 7.7 7.6 i s 7.5 i s - 909mw 1.4 1.2 1 0.8 0.6 0.2 0 0 25 50 75 100 150 ambient temperature (c) power dissipation (w) 125 85 jedec jesd51-7 high effective thermal conductivity test board 0.4 435mw ja =110c/w so8 ja =230c/w sot23-5/6 EL5166, el5167 8 figure 25. package power dissipation vs ambient temperature typical performance curves (continued) 625mw ja =160c/w so8 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 391mw ja =256c/w sot23-5/6 EL5166, el5167 9 applications information product description the EL5166 and el5167 are current-feedback operational amplifiers that offers a wide -3db bandwidth of 1.4ghz and a low supply current of 8.5ma per amplifier. the EL5166 and el5167 work with supply voltages ranging from a single 5v to 10v and they are also capable of swinging to within 1v of either supply on the output. because of their current- feedback topology, the EL5166 and el5167 do not have the normal gain-bandwidth product associated with voltage- feedback operational amplif iers. instead, their -3db bandwidth remains relatively constant as closed-loop gain is increased. this combination of high bandwidth and low power, together with aggressive pricing make the EL5166 and el5167 ideal choices for many low-power/high- bandwidth applications such as portable, handheld, or battery-powered equipment. 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. for good ac performance, parasitic capacitance should be kept to a minimum, especially at the inverting input. (see the capacitance at the inverting input section) even when ground plane construction is used, it should be removed from the area near the inverting input to minimize any stray capacitance at that node. carb on or metal-film resistors are acceptable with the metal-film resistors giving slightly less peaking and bandwidth because of additional series pin descriptions 8-pin so 6-pin sot-23 5-pin sot-23 pin name function equivalent circuit 1, 5 nc not connected 2 4 4 in- inverting input circuit 1 3 3 3 in+ non-inverting input (see circuit 1) 4 2 2 vs- negative supply 6 1 1 out output circuit 2 7 6 5 vs+ positive supply 85 ce chip enable circuit 3 in- in+ v s + v s - v s + v s - out v s + v s - ce EL5166, el5167 10 inductance. use of sockets, pa rticularly for the so package, should be avoided if possible. sockets add parasitic inductance and capacitance which will result in additional peaking and overshoot. disable/power-down the EL5166 amplifier can be disabled placing its output in a high impedance state. when disabled, the amplifier supply current is reduced to 13a. the EL5166 is disabled when its 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 an EL5166 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 allows the EL5166 to be enabled by tying ce to ground, even in 5v sing le supply applications. the ce pin can be driven from cmos outputs. capacitance at the inverting input any manufacturer?s high-speed voltage- or current-feedback amplifier can be affected by stray capacitance at the inverting input. for inverting gains, this parasitic capacitance has little effect because the inverting input is a virtual ground. but for non-inverting gains, this capacitance (in conjunction with the feedback a nd gain resistors) creates a pole in the feedback path of the amplifier. this pole, if low enough in frequency, has the same destabilizing effect as a zero in the forward open-loop response. the use of large value feedback and gain resistors exacerbates the problem by further lowering the pole frequency (increasing the possibility of oscillation). the EL5166 and el5167 frequency responses are optimized with the resistor values in figure 3. with the high bandwidth of these amplifiers, these resistor values might cause stability problems when combined with parasitic capacitance, thus ground plane is not recommended around the inverting input pin of the amplifier. feedback resistor values the EL5166 and el5167 have been designed and specified at a gain of +2 with r f approximately 392 ? . this value of feedback resistor gives 800mhz of -3db bandwidth at a v = 2 with about 0.5db of peaking. since the EL5166 and el5167 are current-feedback amplifiers, it is also possible to change the value of r f to get more bandwidth. as seen in the curve of frequency response for various r f and r g , bandwidth and peaking can be easily modified by varying the value of the feedback resistor. because the EL5166 and el5167 are current-feedback amplifiers, their gain-bandwidth product is not a constant for different closed-loop gains. this feature actually allows the EL5166 and el5167 to maintain reasonable constant -3db bandwidth for different gains. as gain is increased, bandwidth decreases slightly wh ile stability increases. since the loop stability is improving with higher closed-loop gains, it becomes possible to reduce the value of r f below the specified 250 ? and still retain stability, resulting in only a slight loss of bandwidth with increased closed-loop gain. supply voltage range and single-supply operation the EL5166 and el5167 have been designed to operate with supply voltages having a span of greater than 5v and less than 10v. in practical te rms, this means that the EL5166 and el5167 will operate on dual supplies ranging from 2.5v to 5v. with single-supply, they will operate from 5v to 10v. as supply voltages continue to decrease, it becomes necessary to provide input an d output voltage ranges that can get as close as possible to the supply voltages. the EL5166 and el5167 have an input range which extends to within 1.8v of either supply. so, for example, on 5v supplies, the EL5166 and el5167 have an input range which spans 3.2v. the output range of the EL5166 and el5167 is also quite large, extending to within 1v of the supply rail. on a 5v supply, t he output is therefore capable of swinging from -4v to +4v. 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 di fficult when driving a standard video load of 150 ? , because of the change in output current with dc level. prev iously, good differential gain could only be achieved by running high idle currents through the output transistor s (to reduce variations in output impedance.) these currents were typically comparable to the entire 8.5ma supply current of each EL5166 and el5167 amplifier. special circuitry has been incorporated in the EL5166 and el5167 to reduce the variation of output impedance with current output. this results in dg and dp specifications of 0.01% and 0.03, while driving 150 ? at a gain of 2. output drive capability in spite of their low 8.5ma of supply current, the EL5166 and el5167 are capable of providi ng a minimum of 110ma of output current. with so much output drive, the EL5166 and el5167 are capable of driving 50 ? loads to both rails, making them an excellent choice for driving isolation transformers in telecommunications applications. 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 EL5166 and el5167 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 EL5166, el5167 11 between 5 ? and 50 ? ) can be placed in series with the output to eliminate most pe aking. the gain resistor (r g ) can then be chosen to make up for any gain loss which may be created by this additional resist or at the output. in many cases it is also possible to si mply increase the value of the feedback resistor (r f ) to reduce the peaking. current limiting the EL5166 and el5167 have no internal current-limiting circuitry. if the output is short ed, it is possible to exceed the absolute maximum rating for output current or power dissipation, potentially resultin g in the destruction of the device. power dissipation with the high output drive capability of the EL5166 and el5167, 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 calc ulate 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 EL5166 and el5167 to remain in the safe operating area. these parameters are calculated as follows: where: t max = maximum ambi ent 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 t jmax t max ja npd max () + = pd max 2 ( v s i smax ) v s ( v outmax ) v outmax r l ---------------------------- ? + = EL5166, el5167 12 typical application circuits figure 26. inverting 200ma output current distribution amplifier figure 27. fast-settling precision amplifier figure 28. differential line driver/receiver in+ in- v s + v s - out in+ in- v s + v s - out 0.1f +5v 0.1f -5v 250 ? 5 ? 5 ? 250 ? 250 ? v out v in 0.1f 0.1f +5v -5v EL5166 EL5166 in+ in- v s + v s - out in+ in- v s + v s - out 0.1f +5v 0.1f -5v 0.1f 0.1f 250 ? 250 ? 250 ? 250 ? v out v in +5v -5v EL5166 EL5166 in+ in- v s + v s - out in+ in- v s + v s - out 0.1f +5v 0.1f -5v 250 ? 120 ? 120 ? 250 ? 250 ? v out + v in 0.1f 0.1f +5v -5v v out - in+ in- v s + v s - out in+ in- v s + v s - out 0.1f +5v 0.1f -5v 250 ? 250 ? 250 ? v out 0.1f 0.1f +5v -5v 250 ? 1k ? 1k ? 240 ? 0.1f 0.1f receiver transmitter EL5166 EL5166 EL5166 EL5166 EL5166, el5167 13 so package outline drawing EL5166, el5167 14 sot-23 package outline drawing EL5166, el5167 15 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 sc-70 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 |
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