1 ? fn7029.1 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, 2004. all rights reserved. elantec is a registered trademark of elantec semiconductor, inc. all other trademarks mentioned are the property of their respective owners. el2044 low power/low voltage 120mhz unity- gain stable operational amplifier the el2044 is a high speed, low power, low cost monolithic operational amplifier built on elantec's proprietary complementary bipolar process. the el2044 is unity-gain stable and features a 325v/s slew rate and 120mhz gain- bandwidth product while requiring only 5.2ma of supply current. the power supply operating range of the el2044 is from 18v down to as little as 2v. for single-supply operation, the el2044 operates from 36v down to as little as 2.5v. the excellent power supply operating range of the el2044 makes it an obvious choice for applications on a single +5v supply. the el2044 also features an extremely wide output voltage swing of 13.6v with v s = 15v and r l = 1k ? . at 5v, output voltage swing is a wide 3.8v with r l = 500 ? and 3.2v with r l = 150 ? . furthermore, for single-supply operation at +5v, out put voltage swing is an excellent 0.3v to 3.8v with r l = 500 ? . at a gain of +1, the el2044 has a -3db bandwidth of 120mhz with a phase margin of 50. because of its conventional voltage-feedback topology, the el2044 allows the use of reactive or non-linear elements in its feedback network. this versatility comb ined with low cost and 75ma of output-current drive makes the el2044 an ideal choice for price-sensitive applications re quiring low power and high speed. the el2044 is available in the 8-pin so and 8-pin pdip packages and operates over the full -40c to +85c temperature range. features ? pb-free available ? 120mhz -3db bandwidth ? unity-gain stable ? low supply current - 5.2ma @v s = 15v ? wide supply range - 2v to 18v dual-supply and 2.5v to 36v single-supply ? high slew rate = 325v/s ? fast settling - 80ns to 0.1% for a 10v step ? low differential gain - 0.04% at a v =+2, r l = 150 ? ? low differential phase - 0.15 at a v = +2, r l = 150 ? ? wide output voltage swing - 13.6v with v s = 15v, r l =1k ? and 3.8v/0.3v with v s = +5v, r l = 500 ? ? low cost, enhanced replacement for the ad847 and lm6361 applications ? video amplifiers ? single-supply amplifiers ? active filters/integrators ? high speed sample-and-hold ? high speed signal processing ? adc/dac buffers ? pulse/rf amplifiers ? pin diode receivers ? log amplifiers ? photo multiplier amplifiers ? difference amplifiers pinout ordering information part number package tape & reel pkg. dwg. # el2044cs 8-pin so - mdp0027 el2044csz (see note) 8-pin so (pb-free) - mdp0027 el2044cs-t7 8-pin so 7? mdp0027 el2044csz-t7 (see note) 8-pin so (pb-free) 7? mdp0027 el2044cs-t13 8-pin so 13? mdp0027 el2044csz- t13 (see note) 8-pin so (pb-free) 13? mdp0027 el2044cn 8-pin pdip - mdp0031 note: intersil pb-free products employ special pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both snpb and pb-free soldering operations. intersil pb-free products are msl classified at pb-free peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jedec j std-020b. 1 2 3 4 8 7 6 5 el2044 (8-pin so & 8-pin pdip) top view - + nc in- in+ v- nc v+ out nc data sheet august 16, 2004 n o t r e c o m m e n d e d f o r n e w d e s i g n s p o s s i b l e s u b s t i t u t e p r o d u c t ( i s l 5 5 0 0 1 )
2 absolute maxi mum ratings (t a = 25c) supply voltage (v s ). . . . . . . . . . . . . . . . . . . . . . . . . . . . 18v or 36v input voltage (v in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v s differential input voltage (dv in ) . . . . . . . . . . . . . . . . . . . . . . . .10v continuous output current . . . . . . . . . . . . . . . . . . . . . . . . . . . 60ma power dissipation (p d ) . . . . . . . . . . . . . . . . . . . . . . . . . see curves operating temperature range (t a ) . . . . . . . . . . . . .-40c to +85c operating junction temperature (t j ) . . . . . . . . . . . . . . . . . . +150c storage temperature (t st ). . . . . . . . . . . . . . . . . . .-65c to +150c caution: stresses above those listed in ?abs olute maximum ratings? may cause permanent dam age 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 dc electrical specifications v s = 15v, r l = 1k ? , unless otherwise specified. parameter description condition temp min typ max unit v os input offset voltage v s = 15v 25c 0.5 7.0 mv t min , t max 13.0 mv tcv os average offset voltage drift all 10.0 v/c i b input bias current v s = 15v 25c 2.8 8.2 a t min , t max 11.2 a v s = 5v 25c 2.8 a i os input offset current v s = 15v 25c 50 300 na t min , t max 500 na v s = 5v 25c 50 na tci os average offset current drift (note 1) all 0.3 na/c a vol open-loop gain v s = 15v,v out = 10v, r l = 1k ? 25c 800 1500 v/v t min , t max 600 v/v v s = 5v, v out = 2.5v, r l = 500 ? 25c 1200 v/v v s = 5v, v out = 2.5v, r l = 150 ? 25c 1000 v/v psrr power supply rejection ratio v s = 5v to 15v 25c 65 80 db t min , t max 60 db cmrr common-mode rejection ratio v cm = 12v, v out = 0v 25c 70 90 db t min , t max 70 db cmir common-mode input range v s = 15v 25c 14.0 v v s = 5v 25c 4.2 v v s = +5v 25c 4.2/0.1 v v out output voltage swing v s = 15v, r l = 1k ? 25c 13.4 13.6 v t min , t max 13.1 v v s = 15v, r l = 500 ? 25c 12.0 13.4 v v s = 5v, r l = 500 ? 25c 3.4 3.8 v v s = 5v, r l = 150 ? 25c 3.2 v v s = +5v, r l = 500 ? 25c 3.6/0.4 3.8/0.3 v t min , t max 3.5/0.5 v i sc output short circuit current 25c 40 75 ma t min , t max 35 ma el2044
3 notes: 1. slew rate is measured on rising edge. 2. for v s = 15v, v out = 20v pp . for v s = 5v, v out = 5v pp . full-power bandwidth is based on slew rate measurement using: fpbw = sr / (2 * vpeak). 3. video performance measured at v s = 15v, a v = +2 with 2 times normal video level across r l = 150 ? . this corresponds to standard video levels across a back-terminated 75 ? load. for other values of r l , see curves. i s supply current v s = 15v, no load 25c 5.2 7 ma t min , t max 7.6 ma v s = 5v, no load 25c 5.0 ma r in input resistance differential 25c 150 k ? common-mode 25c 15 m ? c in input capacitance a v = +1 @10mhz 25c 1.0 pf r out output resistance a v = +1 25c 50 m ? psor power-supply operating r ange dual-supply 25c 2.0 18.0 v single-supply 25c 2.5 36.0 v note: 1. measured from t min to t max . closed-loop ac electrical specifications v s = 15v, a v = +1, r l = 1k ? unless otherwise specified. parameter description condition temp min typ max unit bw -3db bandwidth (v out = 0.4v pp )v s = 15v, a v = +1 25c 120 mhz v s = 15v, a v = -1 25c 60 mhz v s = 15v, a v = +2 25c 60 mhz v s = 15v, a v = +5 25c 12 mhz v s = 15v, a v = +10 25c 6 mhz v s = 5v, a v = +1 25c 80 mhz gbwp gain-bandwidth product v s = 15v 25c 60 mhz v s = 5v 25c 45 mhz pm phase margin r l = 1 k ? , c l = 10 pf 25c 50 sr slew rate (note 1) v s = 15v, r l = 1k ? 25c 250 325 v/s v s = 5v, r l = 500 ? 25c 200 v/s fpbw full-power bandwidth (note 2) v s = 15v 25c 4.0 5.2 mhz v s = 5v 25c 12.7 mhz t r , t f rise time, fall time 0.1v step 25c 3.0 ns os overshoot 0.1v step 25c 20 % t pd propagation delay 25c 2.5 ns t s settling to +0.1% (a v = +1) v s = 15v, 10v step 25c 80 ns v s = 5v, 5v step 60 ns dg differential gain (note 3) ntsc/pal 25c 0.04 % dp differential phase ntsc/pal 25c 0.15 en input noise voltage 10khz 25c 15.0 nv/ hz in input noise current 10khz 25c 1.50 pa/ hz dc electrical specifications v s = 15v, r l = 1k ? , unless otherwise specified. (continued) parameter description condition temp min typ max unit el2044
4 typical performance curves non-inverting frequency response inverting frequency response frequency response for various load resistances equivalent input noise settling time vs output voltage change output voltage range vs supply voltage common-mode input range vs supply voltage supply current vs supply voltage cmrr, psrr and closed- loop output resistance vs frequency open-loop gain and phase vs frequency output voltage swing vs frequency 2nd and 3rd harmonic distortion vs frequency el2044
5 typical performance curves (continued) gain-bandwidth product vs supply voltage open-loop gain vs supply voltage slew-rate vs supply voltage voltage swing vs load resistance open-loop gain vs load resistance bias and offset current vs input common-mode voltage offset voltage vs temperature bias and offset current vs temperature supply current vs temperature open-loop gain psrr and cmrr vs temperature slew rate vs temperature gain-bandwidth product vs temperature el2044
6 typical performance curves (continued) short-circuit current vs temperature differential gain and phase vs dc input offset at 3.58mhz differential gain and phase vs dc input offset at 4.43mhz differential gain and phase vs number of 150 ? loads at 3.58mhz differential gain and phase vs number of 150 ? loads at 4.43mhz small-signal step response short-circuit current large-signal gain-bandwidth product vs load capacitance 70 60 50 40 30 20 10 0 1 10 100 1k 10k load capacitance (pf) gain-bandwidth product (mhz) v s =15v a v =-2 overshoot vs load capacitance 35 30 25 20 15 10 5 0 51015 25 35 load capacitance (pf) overshoot (%) v s =15v r g =open 20 30 package power dissipation vs ambient temperature jedec jesd51-3 low effective thermal conductivity test board 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 85 ambient temperature (c) power dissipation (w) 781mw 1.25w j a = 1 0 0 c / w j a = 1 6 0 c / w s o 8 p d i p 8 el2044
7 simplified schematic burn-in circuit applications information product description the el2044 is a low-power wideband monolithic operational amplifier built on elantec's proprietary high-speed complementary bipolar process. the el2044 uses a classical voltage-feedback topology which allows it to be used in a variety of applicat ions where current-feedback amplifiers are not appropriate be cause of restrictions placed upon the feedback element used with the amplifier. the conventional topology of the el2044 allows, for example, a capacitor to be placed in the feedback path, making it an excellent choice for applications such as active filters, sample-and-holds, or integrator s. similarly, because of the ability to use diodes in the feedback network, the el2044 is an excellent choice for applications such as fast log amplifiers. single-supply operation the el2044 has been designed to have a wide input and output voltage range. this design also makes the el2044 an excellent choice for single-supp ly operation. using a single positive supply, the lower input voltage range is within 100mv of ground (r l = 500 ? ), and the lower output voltage range is within 300mv of ground. upper input voltage range reaches 4.2v, and output voltage range reaches 3.8v with a all packages use the same schematic el2044
8 5v supply and r l = 500 ? . this results in a 3.5v output swing on a single 5v supply. this wide output voltage range also allows single-supply operation with a supply voltage as high as 36v or as low as 2.5v. on a single 2.5v supply, the el2044 still has 1v of output swing. gain-bandwidth product and the -3db bandwidth the el2044 has a gain-bandwidth product of 60mhz while using only 5.2ma of supply current. for gains greater than 4, its closed-loop -3db bandwidth is approximately equal to the gain-bandwidth product divided by the noise gain of the circuit. for gains less than 4, higher-order poles in the amplifier's transfer function contribute to even higher closed loop bandwidths. for example, the el2044 has a -3db bandwidth of 120mhz at a gain of +1, dropping to 60mhz at a gain of +2. it is important to note that the el2044 has been designed so that this ?extra? bandwidth in low-gain applications does not come at the expense of stability. as seen in the typical performanc e curves, the el2044 in a gain of +1 only exhibits 1.0db of peaking with a 1k ? load. video performance an industry-standard method of measuring the video distortion of a component such as the el2044 is to measure the amount of differential gain (dg) and differential phase (dp) that it introduces. to make these measurements, a 0.286v pp (40 ire) signal is applied to the device with 0v dc offset (0 ire) at either 3.58mhz for ntsc or 4.43mhz for pal. a second measurement is then made at 0.714v dc offset (100 ire). differential gain is a measure of the change in amplitude of the sine wave, and is measured in percent. differential phase is a measur e of the change in phase, and is measured in degrees. for signal transmission and di stribution, a back-terminated cable (75 ? in series at the drive end, and 75 ? to ground at the receiving end) is preferr ed since the impedance match at both ends will absorb any reflections. however, when double termination is used, the received signal is halved; therefore a gain of 2 configuration is typically used to compensate for the attenuation. the el2044 has been designed as an economical solution for applications requiring low video distortion. it has been thoroughly characterized for video performance in the topology described above, and the results have been included as typical dg and dp specifications and as typical performance curves. in a gain of +2, driving 150 ? , with standard video test levels at the input, the el2044 exhibits dg and dp of only 0.04% and 0.15 at ntsc and pal. because dg and dp can vary with different dc offsets, the video performance of the el2044 has been characterized over the entire dc offset range from -0.714v to +0.714v. for more information, refer to t he curves of dg and dp vs dc input offset. the output drive capability of t he el2044 allows it to drive up to 2 back-terminated loads with good video performance. for more demanding applications such as greater output drive or better video distortion , a number of alternatives such as the el2120, el400, or el2073 should be considered. output drive capability the el2044 has been designed to drive low impedance loads. it can easily drive 6v pp into a 150 ? load. this high output drive capability makes the el2044 an ideal choice for rf, if and video applications. furthermore, the current drive of the el2044 remains a minimum of 35ma at low temperatures. printed-circuit layout the el2044 is well behaved, and easy to apply in most applications. however, a few simple techniques will help assure rapid, high quality results. as with any high-frequency device, good pcb layout is necessary for optimum performance. ground-plane construction is highly recommended, as is good power supply bypassing. a 0.1f ceramic capacitor is recommended for bypassing both supplies. lead lengths should be as short as possible, and bypass capacitors should be as close to the device pins as possible. for good ac performanc e, parasitic capacitances should be kept to a minimum at both inputs and at the output. resistor values should be kept under 5k ? because of the rc time constants a ssociated with the parasitic capacitance. metal-film and carbon resistors are both acceptable, use of wire-wound resistors is not recommended because of their parasitic inductance. similarly, capacitors should be low-inductance for best performance. the el2044 macromodel this macromodel has been developed to assist the user in simulating the el2044 with surrounding circuitry. it has been developed for the pspice simu lator (copywritten by the microsim corporation), and may need to be rearranged for other simulators. it approximates dc, ac, and transient response for resistive loads, but does not accurately model capacitive loading. this model is slightly more complicated than the models used for low-fr equency op-amps, but it is much more accurate for ac analysis. the model does not simulate these characteristics accurately: ?noise ?settling time ? non-linearities ? temperature effects ? manufacturing variations ?cmrr ? psrr el2044
9 el2044 macromodel in+in+in+in+in +in+ninininin * connections: +input * | -input * | | +vsupply * | | | -vsupply * | | | | output * | | | | | .subckt m2044 3 2 7 4 6 * * input stage * ie 7 37 1ma r6 36 37 800 r7 38 37 800 rc1 4 30 850 rc2 4 39 850 q1 30 3 36 qp q2 39 2 38 qpa ediff 33 0 39 30 1.0 rdiff 33 0 1meg * * compensation section * ga 0 34 33 0 1m rh 34 0 2meg ch 34 0 1.3pf rc 34 40 1k cc 40 0 1pf * * poles * ep 41 0 40 0 1 rpa 41 42 200 cpa 42 0 1pf rpb 42 43 200 cpb 43 0 1pf * * output stage * ios1 7 50 1.0ma ios2 51 4 1.0ma q3 4 43 50 qp q4 7 43 51 qn q5 7 50 52 qn q6 4 51 53 qp ros1 52 6 25 ros2 6 53 25 * * power supply current * ips 7 4 2.7ma * in+in+in+in+in +in+ninininin * models * .model qn npn(is=800e-18 bf=200 tf=0.2ns) .model qpa pnp(is=864e-18 bf=100 tf=0.2ns) .model qp pnp(is=800e-18 bf=125 tf=0.2ns) .ends el2044
10 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality ce rtifications 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 da ta 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 el2044 macromodel (continued) el2044
|
