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february 2006 1 m9999- 022706 mic860 micrel, inc. mic860 teeny? ultra low power op amp general description the mic860 is a rail-to-rail output, operational ampli?er in teeny ? sc70 packaging. the mic860 provides 4mhz gain-bandwidth product while consuming an incredibly low 30a supply current. the sc70 packaging achieves signi?cant board space savings over devices packaged in sot-23 or msop-8 packaging. the sc70 occupies approximately half the board area of a sot-23 package. features ? teeny ? sc70 packaging ? 4mhz gain-bandwidth product ? 30a supply current ? rail-to-rail output ? ground sensing at input common mode to gnd ? common mode to gnd ? drive large capactive loads applications ? portable equipment ? pdas ? pagers ? cordless phones ? consumer electronics micrel, inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com teeny is a trademark of micrel, inc. ordering information part number ambient temp. range package standard marking pb-free marking* mic860bc5 a32 mic860yc5 a3 2 C 40 o c to +85 o c sc-70-5 * underbar marking may not be to scale. pin con?guration out v+ in? in+ 1 3 4 5 2 v? a32 part identification sc-70 functional pinout out v+ in? in+ 1 3 4 5 2 v?
mic860 micrel, inc. m9999- 022706 2 february 2006 absolute maximum ratings (note 1) supply voltage (v v+ C vC) .......................................... +6.0v differentail input voltage ( ? v in+ C v inC ? ), note 4 ...... +6.0v input voltage (v in+ C v inC ) ................... v + + 0.3v, v C C0.3v lead temperature (soldering, 5 sec.) ........................ 260c output short circuit current duration ................... inde?nite storage temperature (t s ) ......................................... 150c esd rating, note 3 operating ratings (note 2) supply voltage (v+ C vC) ........................ +2.43v to +5.25v ambient temperature range ...................... C40c to +85c package thermal resistance ................................ 450c/w electrical characteristics v+ = +2.7v, vC = 0v, v cm = v+/2; r l = 500k to v+/2; t a = 25c, unless otherwise noted. bold values indicate C40c t a +85c. symbol parameter condition min typ max units v os input offset voltage C20 C5 15 mv C25 20 mv input offset voltage temp coef?cient 20 v/c i b input bias current 20 pa i os input offset current 10 pa v cm input voltage range cmrr > 60db 1 1.8 v cmrr common-mode rejection ratio 0 < v cm < 1.35v 38 76 db psrr power supply rejection ratio supply voltage change of 3v 40 78 db a vol large-signal voltage gain r l = 5k, v out 2v peak to peak 50 66 db r l = 100k, v out 2v peak to peak 66 81 db r l = 500k, v out 2v peak to peak 76 91 db v out maximum output voltage swing r l = 5k v+C70mv v+C34mv v r l = 500k v+C2mv v+C0.7mv v v out minimum output voltage swing r l = 5k vC+11mv vC+ 50mv mv r l = 500k vC+0.2mv vC+ 2mv mv gbw gain-bandwidth product 4 mhz sr slew rate 3 v/s i sc short-circuit output current source 4.5 6 ma sink 10 16 ma i s supply current no load 30 50 a v+= +5v, vC= 0v, v cm = v+/2; r l = 500k to v+/2; t a = 25c, unless otherwise noted. bold values indicate C40c t a +85c. v os input offset voltage C20 C5 20 mv input offset voltage temp coef?cient 20 v/c i b input bias current 20 pa i os input offset current 10 pa v cm input voltage range cmrr > 60db 3.5 4.2 v cmrr common-mode rejection ratio 0 < v cm < 3.5v 44 77 db psrr power supply rejection ratio supply voltage change of 1v 40 79 db a vol large-signal voltage gain r l = 5k, v out 4.8v peak to peak 52 66 db r l = 100k, v out 4.8v peak to peak 67 80 db r l = 500k, v out 4.8v peak to peak 75 90 db
february 2006 3 m9999- 022706 mic860 micrel, inc. symbol parameter condition min typ max units v out maximum output voltage swing r l = 5k v+C75mv v+C37mv v r l = 500k v+C35mv v+C4mv v v out minimum output voltage swing r l = 5k vC+14mv vC+ 40mv mv r l = 500k vC+0.4mv vC+ 5mv mv gbw gain-bandwidth product 4 mhz sr slew rate 3 v/s i sc short-circuit output current source 15 23 ma sink 30 47 ma i s supply current no load 33 55 a 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 . pin 4 is esd sensetive 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.
mic860 micrel, inc. m9999- 022706 4 february 2006 test circuits test circuit 1. a v = 10 test circuit 2. a v = 2 test circuit 3. a v = 1 170k 48k 10k 10k 10 f 0.1 f 10 f 50 ? 50 ? 100 f 0.1 f 10 f 100 f all resistors: 1% metal film output input v+ v mic860 1 2 4 3 5 bnc bnc test circuit 5. positive power supply rejection ratio measurement test circuit 4. a v = C 1
february 2006 5 m9999- 022706 mic860 micrel, inc. typical characteristics 25 27 29 31 33 35 37 39 -4 0 -2 0 0 2 0 4 0 6 0 8 0 100 temperature (c) supply current vs. temperature 5v 2.7v -60 -50 -40 -30 -20 -10 0 -4 0 -2 0 0 2 0 4 0 6 0 8 0 100 short circuit current (sink) vs. temperature 5v 2.7v 0 5 10 15 20 25 30 -4 0 -2 0 0 2 0 4 0 6 0 8 0 100 short circuit current (source) vs. temperature 5v 2.7v -6 -5.5 -5 -4.5 -4 -3.5 -3 -4 0 -2 0 0 2 0 4 0 6 0 8 0 100 offset voltage vs. temperature 5v 2.7v 25 27 29 31 33 35 37 39 41 0. 5 1 1. 5 2 2. 5 3 supply voltage (v) supply current vs. supply voltage -40 c +85 c +25 c v+ = 5v 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 5 1 0 1 5 2 0 2 5 30 output current (ma) output voltage vs. output current (sourcing) -40 c +85 c +25 c v+ = 5v 0 1 2 3 4 5 6 0 1 0 2 0 3 0 4 0 5 0 60 output current (ma) output voltage vs. output current (sinking) -40 c +85 c +25 c v+ = 5v 0 5 10 15 20 25 30 0 0. 5 1 1. 5 2 2. 5 3 short circuit current vs. supply voltage (sourcing) -40 c +85 c +25 c v+ = 5v 0 10 20 30 40 50 60 0 0. 5 1 1. 5 2 2. 5 3 short circuit current vs. supply voltage (sinking) -40 c +85 c +25 c v+ = 5v 0 0.5 1 1.5 2 2.5 0 0. 5 1 1. 5 2 2. 5 3 3. 5 4 4. 5 5 common-mode voltage (v) offset voltage vs. common-mode voltage -40 c +85 c +25 c v+ = 5v 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 0 0.5 4 1.0 8 1.6 2 2.1 6 2.7 common-mode voltage (v) offset voltage vs. common-mode voltage -40 c +85 c +25 c supply = 2.7v -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0. 1 1 1 0 10 0 100 0 10000 resistive load (k?) output voltage swing vs. resistive load (sinking) v cc = 5v v cc = 2.7v temperature (c) temperature (c) temperature (c) supply voltage (v) supply voltage (v)
mic860 micrel, inc. m9999- 022706 6 february 2006 60 80 100 1 1 0 10 0 100 0 10000 resistive load (k?) open loop gain vs. resistive load v cc = 2.7v v cc = 5.0v -0.5 0.5 1.5 2.5 3.5 4.5 5.5 0. 1 1 1 0 10 0 100 0 10000 resistive load (k?) output voltage swing vs. resistive load (sourcing) v cc = 5v v cc = 2.7v
february 2006 7 m9999- 022706 mic860 micrel, inc. functional characteristics -225 -180 -135 -90 -45 0 45 90 135 180 225 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 0 1 x 1 7 0 1 x 2 7 unity gain frequency response -25 -20 -15 -10 -5 0 5 10 15 20 25 v cc = 5v r l = 5k ? c l = 2pf a v = 1 -225 -180 -135 -90 -45 0 45 90 135 180 225 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 0 1 x 1 7 0 1 x 2 7 gain bandwidth and phase margin -50 -40 -30 -20 -10 0 10 20 30 40 50 v cc = 5v a v = 10 r l = 1m ? c l = 2pf -225 -180 -135 -90 -45 0 45 90 135 180 225 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 0 1 x 1 7 0 1 x 2 7 gain frequency response -25 -20 -15 -10 -5 0 5 10 15 20 25 v cc = 5v a v = 2 c l = 2pf r l = 5k ? -225 -180 -135 -90 -45 0 45 90 135 180 225 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 0 1 x 1 7 0 1 x 2 7 unity gain frequency response -25 -20 -15 -10 -5 0 5 10 15 20 25 v cc = 2.7v r l = 5k ? c l = 2pf a v = 1 0 0.5 1 1.5 2 2.5 3 3.5 4 1 1 0 10 0 1000 capacitive load (pf) gain bandwidth vs. capacitve load v cc = 5.0v v cc = 2.7v note: to drive capacitive load, a 500 ? series resistor would help stablize the circuit 0 10 20 30 40 50 60 70 80 90 0 1 x 1 0 0 1 x 1 1 0 1 x 1 2 0 1 x 1 3 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 frequency (hz) psrr vs. frequency v cc = 2.7v 0 10 20 30 40 50 60 70 80 90 0 1 x 1 0 0 1 x 1 1 0 1 x 1 2 0 1 x 1 3 0 1 x 1 4 0 1 x 1 5 0 1 x 1 6 frequency (hz) psrr vs. frequency v cc = 5v
mic860 micrel, inc. m9999- 022706 8 february 2006 smal signal response te s t circuit 3: a v = 1 time 500ns/di v a v = 1 v+ = 2.7v c l = 50pf r l = 500? time 500ns/di v a v = 1 v+ = 5v c l = 50pf r l = 500? smal signal response te s t circuit 3: a v = 1 small signal response te s t circuit 3: a v = 1 time 500ns/di v a v = 1 v+ = 2.7v c l = 2 p f r l = 5k? small signal response te s t circuit 3: a v = 1 time 500ns/di v a v = 1 v+ = 5v c l = 2 p f r l = 5k? small signal response te s t circuit 3: a v = 1 time 500ns/di v a v = 1 v+ = 5v c l = 50pf r l = 5k? small signal response te s t circuit 3: a v = 1 time 500ns/di v a v = 1 v+ = 2.7v c l = 50pf r l = 5k?
february 2006 9 m9999- 022706 mic860 micrel, inc. time 500ns/di v a v = 1 v+ = 2.7v c l = 2pf r l = 1m? smal signal response te s t circuit 3: a v = 1 r l c l v+ v? small signal response te s t circuit 4: a v = ?1 a v = ? 1 v+= 2.7v c l = 2pf r l = 5k? time 500ns/di v small signal response te s t circuit 4: a v = ?1 a v = ? 1 v+= 5v c l = 2pf r l = 1m? time 500ns/di v time 500ns/di v small signal response te s t circuit 4: a v = ?1 a v = ? 1 v+= 5v c l = 2pf r l = 5k? small signal response te s t circuit 4: a v = ?1 a v = ? 1 v+= 2.7v c l = 2pf r l = 1m? time 500ns/di v output 50mv/di v
mic860 micrel, inc. m9999- 022706 10 february 2006 time 250s/di v rail to rail output operation te s t circuit 2: a v = 2 a v = 2 v+ = 5v c l = 2pf r l = 1m? ?v p- p = 5 v time 250s/di v rail to rail output operation te s t circuit 2: a v = 2 a v = 2 v+ = 2.7v c l = 2pf r l = 1m? ?v p- p = 2.7 v ?v = 730mv ?t = 300ns rise slew rate = 2.4v/s fall slew rate = 4.7v/s large signal pulse response te s t circuit 3: a v = 1 time 5s/di v output 50mv/div a v = 1 c l = 50p f r l = 5k? v+ = 2.7 v ?v = 2.84v ?t = 700ns rise slew rate = 4.1v/s fall slew rate = 2.9v/s large signal pulse response te s t circuit 3: a v = 1 time 5s/di v a v = 1 c l = 2pf r l = 5k? v+ = 5 v time 250s/di v rail to rail output operation te s t circuit 2: a v = 2 a v = 2 v+ = 5v c l = 2pf r l = 5k? ?v p- p = 5 v time 250s/di v rail to rail output operation te s t circuit 2: a v = 2 a v = 2 v+ = 2.7v c l = 2pf r l = 5k? ?v p- p = 2.7 v
february 2006 11 m9999- 022706 mic860 micrel, inc. applications information power supply bypassing regular supply bypassing techniques are recommended. a 10f capacitor in parallel with a 0.1f 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 resistance). surface-mount ceramic capacitors are ideal. supply and loading considerations the mic860 is intended for single supply applications con - ?gured with a grounded load. it is not advisable to operate the mic860 with either: 1). a grounded load and split supplies (+/-v) or 2). a single supply where the load is terminated above ground. under the above conditions, if the load is less than 20kohm and the output swing is greater than 1v(peak), there may be some instability when the output is sinking current.
mic860 micrel, inc. m9999- 022706 12 february 2006 package information sc70-5 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 assumed by micrel for its use. micrel reserves the right to change circuitry and speci?cations at any time without noti?cation to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intended 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 signi? cant injury to the user. a purchaser's use or sale of micrel products for use in life support appliances, 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. ? 2002 micrel , inc.

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