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april 2005 1 m9999-042205 mic916 micrel, inc. mic916 triple 135mhz low-power op amp general description the mic916 is a high-speed, unity-gain stable operational amplifier. it provides a gain-bandwidth product of 135mhz with a very low, 2.4ma supply current per op amp. supply voltage range is from 2.5v to 9v, allowing the mic916 to be used in low-voltage circuits or applications requiring large dynamic range. the mic916 is stable driving any capacitative load and achieves excellent psrr, making it much easier to use than most conventional high-speed devices. low supply voltage , low power consumption, and small packing make the mic916 ideal for portable equipment. the ability to drive capacitative loads also makes it possible to drive long coaxial cables. features ? 135mhz gain bandwidth product ?2 .4ma supply current per op amp ? qsop-16 package ? 270v/ s slew rate ?d rives any capacitive load applications ? video ?i maging ?u ltrasound ? portable equipment ordering information part number junction standard pb-free temp. range package mic916bqs MIC916YQS C40 c to +85 c qsop-16 pin configuration outb outc vC(a) * vC(b) * vC(c) * outa v+(c) v+(b) inb- inc- nc inc+ inb+ ina- ina+ v+(a) 1 3 4 5 2 6 7 8 9 10 11 12 13 14 15 16 qsop-16 * vC pins must be externally shorted together micrel, inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.mic rel.com
mic916 micrel, inc. m9999-042205 2 april 2005 pin description pin number pin name pin function 1 inaC inverting input a 2 v+(a) positive supply input (op amp a) 3 ina+ noninverting input a 4 inbC inverting input b 5 inb+ noninverting input b 6 incC inverting input c 7n c not connected 8 inc+ noninverting input c 9 v+(c) positive supply input (op amp c) 10 outc output c 11 vC(c) negative supply input (op amp c) 12 v+(b) positive supply input(op amp b) 13 outb output b 14 vC(b) negative supply input (op amp b) 15 outa output a 16 vC(a) negative supply input (op amp a)
april 2005 3 m9999-042205 mic916 micrel, inc. absolute maximum ratings (note 1) supply voltage (v v+ C v vC ) ........................................... 20v differentail input voltage ( ? v in+ C v inC ? ) .......... 8v, note 4 input common-mode range (v in+ , v inC ) .......... v v+ to v vC lead temperature (soldering, 5 sec.) ....................... 260 c storage temperature (t s ) ........................................ 150 c esd rating, note 3 ................................................... 1.5kv operating ratings (note 2) supply voltage (v s ) ....................................... 2.5v to 9v junction temperature (t j ) ......................... C40 c to +85 c package thermal resistance ............................... 260 c/w electrical characteristics ( 5v) v v+ = +5v, v vC = C5v, v cm = 0v, v out = 0v; r l = 10m ? ; t j = 25 c, bold values indicate C40 c t j +85 c; unless noted. symbol parameter condition min typ max units v os input offset voltage 1 15 mv v os input offset voltage 4 v/ c temperature coefficient i b input bias current 3.5 5.5 a 9 a i os input offset current 0.05 3 a v cm input common-mode range cmrr > 60db C3.25 +3.25 v cmrr common-mode rejection ratio C2.5v < v cm < +2.5v 70 90 db 60 db psrr power supply rejection ratio 5v < v s < 9v 74 81 db 70 db a vol large-signal voltage gain r l = 2k, v out = 2v 60 71 db r l = 200 ? , v out = 2v 60 71 db v out maximum output voltage swing positive, r l = 2k ? +3.3 3.5 v +3.0 v negative, r l = 2k ? C3.5 C3.3 v C3.0 v positive, r l = 200 ? +3.0 3.2 v +2.75 v negative, r l = 200 ? C2.8 C2.45 v C2.2 v gbw gain-bandwidth product r l = 1k ? 125 mhz bw C3db bandwidth a v = 1, r l = 100 ? 192 mhz sr slew rate 230 v/ s crosstalk f = 1mhz, between op amp a and b or b and c 56 db f = 1 mhz, between op amp a and c 72 db i gnd short-circuit output current source 72 ma sink 25 ma i gnd supply current per op amp 2.4 3.5 ma 4.1 ma electrical characteristics v v+ = +9v, v vC = C9v, v cm = 0v, v out = 0v; r l = 10m ? ; t j = 25 c, bold values indicate C40 c t j +85 c; unless noted symbol parameter condition min typ max units v os input offset voltage 1 15 mv v os input offset voltage 4 v/ c temperature coefficient
mic916 micrel, inc. m9999-042205 4 april 2005 symbol parameter condition min typ max units i b input bias current 3.5 5.5 a 9 a i os input offset current 0.05 3 a v cm input common-mode range cmrr > 60db C7.25 +7.25 v cmrr common-mode rejection ratio C6.5v < v cm < 6.5v 70 98 db 60 db a vol large-signal voltage gain r l = 2k ? , v out = 6v 60 73 db v out maximum output voltage swing positive, r l = 2k ? +7.2 +7.4 v +6.8 v negative, r l = 2k ? C7.4 C7.2 v C6.8 v gbw gain-bandwidth product r l = 1k ? 135 mhz sr slew rate 270 v/ s crosstalk f = 1mhz, between op amp a and b or b and c 56 db f = 1 mhz, between op amp a and c 72 db i gnd short-circuit output current source 90 ma sink 32 ma i gnd supply current per op amp 2.5 3.7 ma 4.3 ma note 1. exceeding the absolute maximum rating may damage the device. note 2. the device is not guaranteed to function outside its operating rating. note 3. devices are esd sensitive. handling precautions recommended. human body model, 1.5k in series with 100pf. note 4. exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is likely to increase. t est circuits 2k 10k 10k 10k 0.1 f 0.1 f 0.1 f 10 f 50 ? 50 ? 50 ? 0.1 f 10 f all resistors: 1% metal film output input input v cc v ee bnc bnc bnc psrr vs. frequency 0.1 f 10 f 0.1 f 10 f v cc v ee bnc r7c 2k r7b 200 ? r7a 100 ? input r6 5k r2 5k r3 200k r4 250 ? r5 5k output r1 5k bnc all resistors 1% vv r2 r1 r2 r r4 out error =++ ++ ? ? ? ? ? ? 1 5 r7 cmrr vs. frequency
april 2005 5 m9999-042205 mic916 micrel, inc. r2 4k s2 s1 0.1 f 10 f 0.1 f 10 f 10pf 10pf v cc v ee bnc r4 27k r3 27k r1 20 ? r5 20 ? 100pf to dynamic analyzer noise measurement
mic916 micrel, inc. m9999-042205 6 april 2005 electrical characteristics 2.0 2.5 3.0 3.5 2345678910 supply current (ma) supply voltage ( v) supply current vs. supply voltage +85 c +25 c -40 c 2.0 2.5 3.0 3.5 4.0 -40 -20 0 20 40 60 80 100 supply current (ma) temperature ( c) supply current vs. temperature v supply = 9v v supply = 5v 1.0 1.5 2.0 2.5 -40 -20 0 20 40 60 80 100 offset voltage (mv) temperature ( c) offset voltage vs. temperature v supply = 5v v supply = 9v 1 2 3 4 5 -40 -20 0 20 40 60 80 100 bias current ( a) temperature ( c) bias current vs. temperature v supply = 5v v supply = 9v 0 1 2 3 4 5 6 -8 -6 -4 -2 0 2 4 6 8 offset voltge (mv) common-mode voltage (v) offset voltage vs. common-mode voltage +85 c +25 c -40 c v supply = 9v 0 1 2 3 4 5 -5 -4 -3 -2 -1 0 1 2 3 4 5 offset voltge (mv) common-mode voltage (v) offset voltage vs. common-mode voltage +85 c +25 c -40 c v supply = 5v 55 60 65 70 75 80 85 90 95 -40 -20 0 20 40 60 80 100 supply current (ma) temperature ( c) short-circuit current vs. temperature v supply = 9v v supply = 5v sourcing current -40 -35 -30 -25 -20 -40 -20 0 20 40 60 80 100 supply current (ma) temperature ( c) short-circuit current vs. temperature v supply = 9v v supply = 5v sinking current 20 40 60 80 100 2345678910 output current (ma) supply voltage ( v) short-circuit current vs. supply voltage +85 c +25 c -40 c sourcing current -40 -35 -30 -25 -20 -15 2345678910 output current (ma) supply voltage ( v) short-circuit current vs. supply voltage +85 c +25 c -40 c sinking current 0 1 2 3 4 5 6 7 8 9 10 0204 06080100 output voltage (v) output current (ma) output voltage vs. output current +85 c +25 c -40 c sourcing current v supply = 9v -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 -40 -30 -20 -10 0 output voltage (v) output current (ma) output voltage vs. output current +85 c +25 c -40 c sinking current v supply = 9v
april 2005 7 m9999-042205 mic916 micrel, inc. 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 020406 080 output voltage (v) output current (ma) output voltage vs. output current +85 c +25 c -40 c sourcing current v supply = 5v -4.5 -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 -30 -25 -20 -15 -10 -5 0 output voltage (v) output current (ma) output voltage vs. output current +85 c +25 c -40 c sinking current v supply = 5v 0 25 50 75 100 125 150 34 36 38 40 42 44 46 0 200 400 600 800 1000 gain bandwidth (mhz) phase margin ( ) capacitive load (pf) gain bandwidth and phase margin vs. load v supply = 5v 0 25 50 75 100 125 150 34 36 38 40 42 44 46 0 200 400 600 800 1000 gain bandwidth (mhz) phase margin ( ) capacitive load (pf) gain bandwidth and phase margin vs. load v supply = 9v 0 25 50 75 100 125 150 42 44 46 48 50 52 54 2345678910 gain bandwidth (mhz) phase margin ( ) supply voltage ( v) gain bandwidth and phase margin vs. supply voltage 0 20 40 60 80 100 120 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 cmrr (db) frequency (hz) common-mode rejection ratio v supply = 9v 0 20 40 60 80 100 120 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 cmrr (db) frequency (hz) common-mode rejection ratio v supply = 5v 0 20 40 60 80 100 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 +psrr (db) frequency (hz) positive power supply rejection ratio v supply = 9v 0 20 40 60 80 100 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 Cpsrr (db) frequency (hz) negative power supply rejection ratio v supply = 5v 0 20 40 60 80 100 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 Cpsrr (db) frequency (hz) negative power supply rejection ratio v supply = 9v 0 20 40 60 80 100 1x10 2 1x10 3 1x10 4 1x10 5 1x10 6 1x10 7 +psrr (db) frequency (hz) positive power supply rejection ratio v supply = 5v -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 1x10 5 1x10 6 1x10 7 1x10 8 cross talk (db) frequency (hz) distant channel cross talk
mic916 micrel, inc. m9999-042205 8 april 2005 -50 -40 -30 -20 -10 0 10 20 30 40 50 110 100 200 gain (db) frequency (mhz) closed-loop frequency response v cc = 2.5v 1000pf 500pf 100pf 50 p f 0p 200pf -50 -40 -30 -20 -10 0 10 20 30 40 50 110 100 200 gain (db) frequency (mhz) closed-loop frequency response v cc = 5v 1000pf 500pf 100pf 50 p f 0p 200pf -50 -40 -30 -20 -10 0 10 20 30 40 50 -225 -180 -135 -90 -45 0 45 90 135 180 225 110 100 200 gain (db) phase ( ) frequency (mhz) open-loop frequency response v cc = 5v r l =100 ? no load -50 -40 -30 -20 -10 0 10 20 30 40 50 -225 -180 -135 -90 -45 0 45 90 135 180 225 110 100 200 gain (db) phase ( ) frequency (mhz) open-loop frequency response v cc = 9v r l =100 ? no load rf c l fet probe mic916 50 ? closed-loop frequency response te st circuit 0.1 f 10 f 10 f v cc v ee 0 20 40 60 80 100 120 1x10 1 1x10 2 1x10 3 1x10 4 1x10 5 frequency (hz) voltage noise noise voltage nv hz ? ? ? | 0 50 100 150 200 250 0 200 400 600 800 1000 slew rate (v/ s) load capacitance (pf) positive slew rate v cc = 5v 0 50 100 150 200 250 0 200 400 600 800 1000 slew rate (v/ s) load capacitance (pf) negative slew rate v cc = 5v 0 50 100 150 200 250 300 0 200 400 600 800 1000 slew rate (v/ s) load capacitance (pf) negative slew rate v cc = 9v 0 50 100 150 200 250 300 0 200 400 600 800 1000 slew rate (v/ s) load capacitance (pf) positive slew rate v cc = 9v 0 1 2 3 4 5 1x10 1 1x10 2 1x10 3 1x10 4 1x10 5 frequency (hz) current noise noise current pa hz ? ? ? | -90 -80 -70 -60 -50 -40 -30 -20 -10 0 1x10 5 1x10 6 1x10 7 1x10 8 cross talk (db) frequency (hz) adjacent channel cross talk
april 2005 9 m9999-042205 mic916 micrel, inc. small-signal pulse response v cc = 5v a v = 1 c l = 1.7pf r l = 10m ? output input small-signal pulse response v cc = 5v a v = 1 c l = 100pf r l = 10m ? output input small-signal pulse response v cc = 5v a v = 1 c l = 1000pf r l = 10m ? output input small-signal pulse response v cc = 9v a v = 1 c l = 100pf r l = 10m ? output input small-signal pulse response v cc = 9v a v = 1 c l = 1000pf r l = 10m ? output input small-signal pulse response v cc = 9v a v = 1 c l = 1.7pf r l = 10m ? output input
mic916 micrel, inc. m9999-042205 10 april 2005 large-signal pulse response v cc = 9v a v = 1 c l = 1.7pf output ? v = 5.64v ? t = 21ns large-signal pulse response v cc = 9v a v = 1 c l = 100pf output ? v = 5.84v ? t = 22.5ns large-signal pulse response v cc = 9v a v = 1 c l = 1000pf output ? v = 5.88v ? t = 70ns large-signal pulse response v cc = 5v a v = 1 c l = 1.7pf output ? v = 5.68v ? t = 24.5ns large-signal pulse response v cc = 5v a v = 1 c l = 100pf output ? v = 5.84v ? t = 26ns large-signal pulse response v cc = 5v a v = 1 c l = 1000pf output ? v = 5.48v ? t = 95ns
april 2005 11 m9999-042205 mic916 micrel, inc. applications information the mic916 is a high-speed, voltage-feedback operational amplifier featuring very low supply current and excellent stability. this device is unity gain stable and capable of driving high capacitance loads. driving high capacitance the mic916 is stable when driving any capacitance (see typical characteristics: gain bandwidth and phase margin vs. load capacitance) making it ideal for driving long coaxial cables or other high-capacitance loads. phase margin remains constant as load capacitance is increased. most high-speed op amps are only able to drive limited capacitance. note: increasing load capacitance does reduce the speed of the device (see typical characteris- tics: gain bandwidth and phase margin vs. load). in applications where the load capaci- tance reduces the speed of the op amp to an unacceptable level, the effect of the load capaci- tance can be reduced by adding a small resistor (<100 ? ) in series with the output. feedback resistor selection conventional op amp gain configurations and resistor selec- tion apply, the mic916 is not a current feedback device. resistor values in the range of 1k to 10k are recommended. layout considerations all high speed devices require careful pcb layout. the high stability and high psrr of the mic916 make this op amp easier to use than most, but the following guidelines should be observed: capacitance, particularly on the two inputs pins will degrade performance; avoid large copper traces to the inputs. keep the output signal away from the inputs and use a ground plane. it is important to ensure adequate supply bypassing capaci- tors are located close to the device. power supply bypassing regular supply bypassing techniques are recommended. a 10 f capacitor in parallel with a 0.1 f capacitor on both the positive and negative supplies are ideal. for best perfor- mance all bypassing capacitors should be located as close to the op amp as possible and all capacitors should be low esl (equivalent series inductance), esr (equivalent series resis- tance). surface-mount ceramic capacitors are ideal. all vC pins must be externally shorted together. thermal considerations it is important to ensure the ic does not exceed the maximum operating junction (die) temperature of 85 c. the part can be operated up to the absolute maximum temperature rating of 125 c, but between 85 c and 125 c performance will de- grade, in particular cmrr will reduce. a mic916 with no load, dissipates power equal to the quies- cent supply current * supply voltage pvvi dvv s (no load) = ? () + ? when a load is added, the additional power is dissipated in the output stage of the op amp. the power dissipated in the device is a function of supply voltage, output voltage and output current. pvvi dv out out (output stage) = ? () + total power dissipation p p ddt =+ (no load) (outpu stage) ensure the total power dissipated in the device is no greater than the thermal capacity of the package. the qsop-16 package has a thermal resistance of 260 c/w. max allowable power dissipation tt w ja . = ? (max) (max) tbd
mic916 micrel, inc. m9999-042205 12 april 2005 package information 45 0.2284 (5.801) 0.2240 (5.690) seating plane 0.009 (0.2286) ref 0.012 (0.30) 0.008 (0.20) 0.157 (3.99) 0.150 (3.81) 0.050 (1.27) 0.016 (0.40) 0.0688 (1.748) 0.0532 (1.351) 0.196 (4.98) 0.189 (4.80) 0.025 (0.635) bsc pin 1 dimensions: inches (mm) 0.0098 (0.249) 0.0040 (0.102) 0.0098 (0.249) 0.0075 (0.190) 8 0 qsop-16 micrel inc. 2180 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 web http://www.micrel.com this information furnished by micrel in this data sheet is believed to be accurate and reliable. however no responsibility is a ssumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant inj ury to the user. a purchasers use or sale of micrel products for use in life support appliances, devices or systems is a purchasers own risk and purchaser a grees to fully indemnify micrel for any damages resulting from such use or sale. ? 2000 micrel incorporated

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