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mic913 350mhz low-power sot23-5 op amp micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com october 2007 m9999-101707 general description the mic913 is a high-speed, operational amplifier. it pro- vides a gain-bandwidth product of 350mhz with a very low, 4.2ma supply current, and features the tiny sot-23-5 package. supply voltage range is from 2.5v to 9v, allowing the mic913 to be used in low-voltage circuits or applications requiring large dynamic range. the mic913 requires a minimum gain of +2 or ?1 but is stable driving any capacitive load and achieves excellent psrr, making it much easier to use than most conven- tional high-speed devices. low supply voltage, low power consumption, and small packing make the mic913 ideal for portable equipment. the abilit y to drive capacitive loads also makes it possible to drive long coaxial cables. data sheets and support doc umentation can be found on micrel?s web site at: www.micrel.com. features ? 350mhz gain bandwidth product ? 4.2ma supply current ? sot23-5 package ? 500v/s slew rate ? drives any capacitive load ? stable with gain of +2 or ?1 ? low distortion applications ? video ? imaging ? ultrasound ? portable equipment ? line drivers ? xdsl ___________________________________________________________________________________________________________ ordering information part number temperature range package lead finish mic913bm5 ?40 to +85c 5-pin sot23 standard MIC913YM5 ?40 to +85c 5-pin sot23 pb-free
micrel, inc. mic913 october 2007 2 m9999-101707 pin configuration functional pinout out v+ in? in+ 1 3 45 2 v? a24 part identification out v + in? in+ 1 3 45 2 v? sot23-5 sot23-5 pin description pin number pin name pin function 1 out output: amplifier output 2 v+ positive supply (input) 3 in+ non-inverting input 4 in? inverting input 5 v? negative supply (input)
micrel, inc. mic913 october 2007 3 m9999-101707 absolute maximum ratings (1) supply voltage (v v+ ? v v? ) .............................................20v differential input voltage (|v in+ ? v in? |) (3) .........................4v input common-mode range (v in+ ? v in? ) .............v v+ to v v? lead temperature (solde ring, 5 se c.) ........................ 260c storage temperature (t s ) .......................................... 150c esd rating (4) ............................................................... 1.5kv operating ratings (2) supply voltage (v s )......................................... 2.5v to 9v junction temperature (t j ) .......................... ?40c to +85c thermal resist ance ............................................... 260c/w electrical characteristics (5v) v v+ = +5v, v v? = ?5v, v cm = 0v, v out = 0v; r l = 10m ? ; t j = 25c, bold values indicate ?40c t j +85c; unless noted. symbol parameter condition min typ max units input offset voltage 1 16 mv v os input offset voltage temperature coefficient 4 v/c i b input bias current 5.5 9 15 a a i os input offset current 0.05 3 a v cm input common-mode range cmrr > 60db ?3.25 +3.25 v cmrr common-mode rejection ratio ?2.0v < v cm < +2.0v 70 85 db psrr power supply rejection ratio 5v < v s < 9v 70 65 81 db db r l = 2k, v out = 2v 60 71 db a vol large-signal voltage gain r l = 200 ? , v out = 2v 60 71 db positive, r l = 2k ? +3.3 +3.0 3.5 v v negative, r l = 2k ? ?3.5 ?3.3 ?3.0 v v positive, r l = 200 ? +3.0 +2.75 3.2 v v v out maximum output voltage swing negative, r l = 200 ? ?2.8 ?2.45 ?2.2 v v gbw gain-bandwidth product f = 80mhz, r l = 1k ? 300 mhz a v = 2, r l = 150 ? 213 mhz bw ?3db bandwidth a v = 4, or a v = ?3, r l = 400 ? 104 mhz r f = r g = 470 ? , a v = 2, v out = 2vpp, f = 2mhz 0.01 % thd total harmonic distortion a v = 2, v out = 2vpp, f = 2mhz, r l = 500 ? 0.05 % sr slew rate 350 v/s source 72 ma short-circuit output current sink 25 ma i gnd supply current 4.1 4.9 5.4 ma ma
micrel, inc. mic913 october 2007 4 m9999-101707 electrical characteristics v v+ = +9v, v v? = ?9v, v cm = 0v, v out = 0v; r l = 10m ? ; t j = 25c, bold values indicate ?40c t j +85c; unless noted. symbol parameter condition min typ max units input offset voltage 1 16 mv v os input offset voltage temperature coefficient 4 v/c i b input bias current 5.5 9 15 a a i os input offset current 0.05 3 a v cm input common-mode range cmrr > 60db ?7.25 +7.25 v cmrr common-mode rejection ratio ?6.0v < v cm < 6.0v 70 88 db a vol large-signal voltage gain r l = 2k ? , v out = 6v 60 73 db positive, r l = 2k ? +7.2 +6.8 +7.4 v v v out maximum output voltage swing negative, r l = 2k ? ?7.4 ?7.2 ?6.8 v v gbw gain-bandwidth product r l = 1k ? , f = 80mhz 350 mhz a v = 2 or a v = ?1, r l = 150 ? 240 mhz bw ?3db bandwidth a v = 4 or a v = ?3 140 mhz r f = r g = 470 ? , a v = 2, v out = 2vpp, f = 2mhz 0.01 % thd total harmonic distortion a v = 2, v out = 2vpp, f = 2mhz, r l = 500 ? 0.04 % sr slew rate 500 v/s source 90 ma short-circuit output current sink 32 ma i gnd supply current 4.2 5.0 5.5 ma ma notes: 1. exceeding the absolute maximum rating may damage the device. 2. the device is not guaranteed to function outside its operating rating. 3. exceeding the maximum differential input voltage will dam age the input stage and degrade performance (in particular, input bias current is likely to change). 4. devices are esd sensitive. handling precautions re commended. human body model, 1.5k in series with 100pf.
micrel, inc. mic913 october 2007 5 m9999-101707 test circuits 2k 10k 10k 10k 0.1f 0.1f 0.1f 10f 0.1f 10f all resistors: 1% metal film input input v cc v ee mic913 1 2 4 3 5 bnc bnc bnc output 0.1f 10f 0.1f 10f v cc v ee mic913 1 2 4 3 5 bnc r7c 2k input r6 5k r2 5k r3 200k r4 r5 5k output r1 5k bnc all resistors 1% vv r2 r1 r2 r r4 out error =++ ++ ? ? ? ? ? ? 1 5 r7 psrr vs. frequency cmrr vs. frequency r2 4k s2 s1 0.1f 10f 0.1f 10f 10pf 10pf v cc v ee mic913 1 2 4 3 5 bnc r4 27k r3 27k r1 r5 100pf to dynamic analyzer noise measurement
micrel, inc. mic913 october 2007 6 m9999-101707 typical characteristics
micrel, inc. mic913 october 2007 7 m9999-101707 typical characteristics (continued)
micrel, inc. mic913 october 2007 8 m9999-101707 typical characteristics (continued)
micrel, inc. mic913 october 2007 9 m9999-101707 typical characteristics (continued)
micrel, inc. mic913 october 2007 10 m9999-101707 functional characteristics
micrel, inc. mic913 october 2007 11 m9999-101707 functional characteristics (continued)
micrel, inc. mic913 october 2007 12 m9999-101707 application information the mic913 is a high-sp eed, voltage-feedback opera- tional amplifier featuring very low supply current. the mic913 is not unity-gain stable, it requires a minimum gain of +2 or ?1 to ensure stability. the device is however stable even when driving high capacitance loads. driving high capacitance the mic913 is stable when dr iving any capacitance (see ?typical characteristics: gain bandwidth and phase margin vs. load capacitance?) making it ideal for driving long coaxial cables or othe r 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 character- istics: 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 effe ct 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 conf igurations and resistor selection apply, the mic913 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 mic913 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 perfor mance; 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 capacitors are located close to the device. power supply bypassing regular supply bypassing techniques are recom- mended. a 10f capacitor in parallel with a 0.1f capacitor on both the positive and negative supplies are ideal. for best performance 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 resistance). surface-mount ceramic capacitors are ideal. thermal considerations the sot-23-5 package, like all small packages, has a high thermal resistance. it is important to ensure the ic does not exceed the maximum operating junction (die) temperature of 85c. the part can be operated up to the absolute maximum temperature rating of 125c, but between 85c and 125c perfo rmance will degrade, in particular cmrr will reduce. a mic913 with no load, dissipates power equal to the quiescent supply current * supply voltage. p d(no load) = (v v+ ? v v? )i s 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 functi on of supply voltage, output voltage and output current. p d(output stage) = (v v+ ? v v? )i out total power dissipation = p d(no load) + p d(output stage) ensure the total power dissipated in the device is no greater than the thermal capa city of the package. the sot23-5 package has a thermal resistance of 260c/w. 260w t t n dissipatio power allowable max. a(max) j(max) ? =
micrel, inc. mic913 october 2007 13 m9999-101707 package information 5-pin sot23 (m5) 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 the information furnished by micrel in this data sheet is belie ved 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 authori zed for use as components in life support app liances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life suppo rt devices or systems are devices or systems that (a) are int ended 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 significan t injury to the user. a purchaser?s use or sale of micrel produc ts for use in life support app liances, devices or systems is a purchaser?s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2000 micrel, incorporated.

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