apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 1 features ? high power bandwidth 350 k h z ? high slew rate 20v/ s ? fast settling time 600 ns ? low crossover distortion class a/b ? low internal losses 1.2v at 2a ? high output current 5a peak ? low input bias current fet input ? isolated case 300 vdc applications ? motor, valve and actuator control ? magnetic deflection circuits up to 5a ? power transducers up to 350 k h z ? audio amplifiers up to 44w rms description the pa16 and PA16A are wideband, high output current operational ampli?ers designed to drive resistive, inductive and capacitive loads. their complementary collector output stage can swing close to the supply rails and is protected against inductive kickback. for optimum linearity, the output stage is biased for class a/b operation. the safe operating area (soa) can be observed for all operating conditions by selection of user programmable, current limiting resistors (down to 10ma). both ampli?ers are internally compensated but are not recommended for use as unity gain followers. for continuous operation under load, mounting on a heatsink of proper rating is recommended. these hybrid integrated circuits utilize thick ?lm (cermet) resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. ultrasonically bonded aluminum wires provide reliable inter - connections at all operating temperatures. the power sip package is electrically isolated. equivalent schematic typical application vehicular sound system power stage when system voltages are low and power is at a premium, the pa16 is a natural choice. the circuit above utilizes not only the feature of low internal loss of the pa16, but also its very low distortion level to implement a crystal clear audio ampli?er suitable even for airborne applications. this circuit uses ac coupling of both the input signal and the gain circuit to render dc voltage across the speaker insigni?cant. the resistor and capacitor across the inputs form a stability enhancement net - work. the 0.27 ohm current limit resistors provide protection in the event of an output short circuit. external connections ??? ???? ? ??? ? ??? ???? ???? ???? ??? ??? ??? ????? ????? ??? ?????? ???? ?? ?? ?????????????????????????????????????? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ???????????????????????????? ???????????? ?? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ? ? ? ? ? ?? ?? ??? ??? ??? ?? ?? ?? ?? ?? ? ?? ? ? ? ? ? ? ? ? ? ? ?? ?? ?? 12-pin sip package style dp formed leads available see package style s ed & ee
apex microtechnology corporation ? 5980 north shannon road ? tucson, arizona 85741 ? usa ? applications hotline: 1 (800) 546-2739 2 absolute maximum ratings specifications absolute maximum ratings supply voltage, +v s to Cv s 38v output current, within soa 5a power dissipation, internal 1 62.5w input voltage, differential v s C5v input voltage, common mode v s C2v temperature, pin solder - 10s max. 260c temperature, junction 1 150c temperature range, storage C40 to +85c operating temperature range, case C25 to +85c pa16 ? PA16A the exposed substrate contains beryllia (beo). do not crush, machine, or subject to temperatures in excess of 850c to avoid generating toxic fumes. caution specifications pa16 PA16A parameter test conditions 2, 6 min typ max min typ max units input offset voltage, initial t c = 25c 5 10 1 3 mv offset voltage, vs. temperature full temperature range 10 50 * 25 v/c offset voltage, vs. supply t c = 25c 10 * v/v offset voltage, vs. power t c = 25c 6 * v/w bias current, initial t c = 25c 50 200 25 100 pa bias current, vs. temperature t c = 85c 200 * pa/c bias current, vs. supply t c = 25c .01 * pa/v offset current, initial t c = 25c 25 100 15 50 pa offset current, vs. temperature t c = 85c 100 * pa/c input impedance, dc t c = 25c 1000 * g input capacitance t c = 25c 3 * pf common mode volt. range 5 , pos. full temperature range +v s C6 +v s C3 * * v common mode volt. range 5 , neg. full temperature range Cv s +6 Cv s +5 * * v common mode rejection, dc full temperature range 70 100 * * db gain open loop gain at 10hz t c = 25c, 1k load 103 * db open loop gain at 10hz full temp. range, 10k load 86 100 * * db gain bandwidth product at 1mhz t c = 25c, 10 load 4.5 * mhz power bandwidth t c = 25c, 10 load 350 * khz phase margin full temp. range, 10 load 30 * output voltage swing 3 t c = 25c, i o = 5a, r cl = .08 v s C4 v s C3 v s C3 * v voltage swing 3 full temp. range, i o = 2a v s C2 v s C1.2 v s C1.2 * v current, peak t c = 25c 5 * a settling time to .1% t c = 25c, 2v step .6 * s slew rate t c = 25c 13 20 * * v/s capacitive load full temp. range, a v > 10 soa * harmonic distortion p o = 5w, f = 1khz, r l = 4 .028 * % small signal rise/fall time r l = 10, a v = 1 100 * ns small signal overshoot r l = 10, a v = 1 10 * % power supply voltage full temperature range 7 15 19 * * * v current, quiescent t c = 25c 27 40 * * ma thermal resistance, ac junction to case 4 f > 60hz 1.4 1.6 * * c/w resistance, dc junction to case f < 60hz 1.8 2.0 * * c/w resistance, junction to air 30 * c/w temperature range, case meets full range speci?cations C25 +85 * * c notes: * the speci?cation of PA16A is identical to the speci? cation for pa16 in applicable column to the left. 1. long term operation at the maximum junction temperature will result in reduced product life. derate internal power dissipation to achieve high mttf. 2. the power supply voltage for all speci? cations is the typ rating unless otherwise noted as a test condition. 3. +v s and Cv s denote the positive and negative supply rail respectively. total v s is measured from +v s to Cv s . 4. rating applies if the output current alternates between both output transistors at a rate faster than 60hz. 5. exceeding cmv range can cause the output to latch. 6. full temperature speci? cations are guaranteed but not 100% tested.
apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 3 typical performance graphs pa16 ? PA16A ? ?? ?? ?? ??? ??? ??????????????????? ? ????? ? ?? ?? ?? ?????????????? ????????????????????????????? ? ???? ?? ??? ??? ??? ????????????????? ????????????????????? ? ? ?????????? ? ??? ??? ????????????????? ??? ? ?? ??? ????????????????????? ????????????????? ?? ????? ?? ?? ?? ??? ? ??? ??? ??? ???? ???? ??? ? ?????????????? ??? ??? ??? ??? ??? ?? ????????????????? ? ????????????????? ? ??? ??? ? ? ? ? ? ?????????????????????????????? ? ? ? ????????????? ???????????? ?? ??? ??? ? ?????????????????? ? ???? ???????????????????? ????????????????????? ? ??? ? ???? ??? ?? ??? ??????????????????? ? ????? ? ??? ????????????? ???????????????? ??? ???? ??? ? ? ? ??? ??????????? ?? ?? ?? ?? ?? ?? ?????????????? ??? ? ?? ?? ?? ??? ?? ?? ??? ??? ?? ?? ?? ??? ?? ????????????????? ???????????? ??? ??? ??? ?? ?? ?? ?? ?? ? ??? ??? ???? ???? ?? ?? ?? ?? ? ? ? ? ? ??? ??? ??? ??? ??? ? ??????????? ???????????? ?? ???? ? ????????? ? ???????? ???? ? ????????? ? ???????? ? ? ????????????? ?? ? ? ?? ??????? ? ?? ???????? ?????????????? ?? ???????????????? ?????????????????????? ???????????????????????????????? ??? ?? ??? ??? ?? ??? ? ?? ?? ?? ?? ??? ??? ??? ?? ? ?? ? ??? ??????????????????? ? ????? ????????????????? ?????????????????????????????? ? ???? ? ?? ?? ?? ??? ??? ??? ??? ??? ??? ? ???? ???? ???? ???? ? ??? ????????????????? ????????????????????? ??????????????????????????????? ?? ?? ??? ??? ?? ??? ?? ?? ?? ?? ??? ??? ??? ??? ??? ?? ??? ???????????? ? ??? ? ?? ?? ?? ?? ?????????????????????????? ? ???? ? ??????????????????? ? ???? ?? ?? ??
apex microtechnology corporation ? 5980 north shannon road ? tucson, arizona 85741 ? usa ? applications hotline: 1 (800) 546-2739 4 operating considerations pa16 ? PA16A ??? ???? ????????????????? ????? ??? ? ??????????????????? ??????????????????? ??? ???? ???? ? ? ? ???????????? ??? ? ?? ?????????????? ??? ? ?? ? ? ?? ?????????????? ????????????????? ? ???? ??? ??? ? ?? ?? ?? ??? ??? ????????????????? ??????????????? ????????????????????????????? ???? ??? ? ??? ??? ?? ???? ??? ??? ???????????? ? ?? ??? ??? ????????????????? ? ???? ? ? ? ????? ? ?? ?????? ? ?? ?????????? ? ??????? ? ?? ????????? ? ???????? ????????????? ? ? ???????? ? ? ???????? ? ? ?????? ? ? ????? ? ? ????? ? ? ????? ? ? ?????? ? ? ????? general please read application note 1 "general operating considerations" which cov - ers stability, supplies, heat sinking, mounting, current limit, soa interpretation, and speci?cation interpretation. visit www.apexmicrotech.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selection; apexs complete application notes library; technical seminar workbook; and evaluation kits. safe operating area (soa) the soa curves combine the effect of all limits for this power op amp. for a given application, the direction and magnitude of the output current should be calculated or measured and checked against the soa curves. this is simple for resistive loads but more complex for reactive and emf generat - ing loads. the following guidelines may save exten - sive analytical efforts: the ampli?er can handle any emf generating or reactive load and short cir - cuits to the supply rails or shorts to common if the current limits are set as follows at t c = 85c. short to v s short to v s c, l or emf load common 18v .9a 1.8a 15v 1.0a 2.1a 10v 1.6a 3.2a these simpli?ed limits may be exceeded with further analysis using the operating conditions for a speci?c application. current limit proper operation requires the use of two current limit resistors, connected as shown in the external connection diagram. the minimum value for r cl is 0.12 ohm, however for optimum reliability it should be set as high as possible. refer to the general operating considerations section of the handbook for current limit adjust details. .65 r cl = -0.01 i lim (a) device mounting the case (mounting ?ange) is electrically isolated and should be mounted directly to a heatsink with thermal compound. screws with belville spring washers are recommended to maintain positive clamping pressure on heatsink mounting surfaces. long periods of thermal cycling can loosen mounting screws and increase thermal resistance. since the case is electrically isolated (?oating) with respect to the internal circuits it is recommended to connect it to common or other convenient ac ground potential. ??????? ????????????????????????????? ? ? ??????? ? ? ??????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ? ? ? ?? ? ?? ?? ?? ?? ?? ?????????????????????? ? ?????? ? ???? ??????????????????????????????????????? ? ??? ? ???? ??? this data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. all speci?cations are subject to change without notice. pa16u rev f march 2003 ? 2003 apex microtechnology corp.
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