june 1999 1 MIC6211 MIC6211 micrel MIC6211 ittybitty operational amplifier final information general description the MIC6211 ittybitty op amp is a general-purpose, high- performance, single- or split-supply, operational amplifier in a space-saving, surface-mount package. the MIC6211 operates from 4v to 32v, single or differential (split) supply. the input common-mode range includes ground. the device features a 2.5mhz unity gain bandwidth, 6v/ s slew rate, and is internally unity-gain compensated. inputs are protected against reverse polarity (input voltage less than v? and esd (electrostatic discharge). output is current limited for both sourcing and sinking. output short circuits of unlimited duration are allowed, provided the power dissipation specification is not exceeded. the MIC6211 is available in the tiny, 5-lead sot-23-5 sur- face-mount package. functional configuration out v+ in in+ 1 3 45 2 v sot-23-5 (m5) features 4v to 32v operation small footprint package unity gain stable 2.5 mhz unity gain bandwidth 6v/ s typical slew rate short circuit protected applications analog blocks active filtering ordering information part number temperature range package MIC6211bm5 40 c to +85 c sot-23-5 pin description pin number pin name pin function 1 out amplifier output 2v negative supply: negative supply for split supply application or ground for single supply application. 3 in+ noninverting input 4in inverting input 5 v+ positive supply pin configuration part identification out v+ in in+ a11 1 3 45 2 v micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
MIC6211 micrel MIC6211 2 june 1999 electrical characteristics (differential supply) v+ = +15v, v = 15v, v cm = 0v; r l = 2k ? ; t a = 25 c, bold values indicate 40 c t a +85 c, t a = t j ; unless noted symbol parameter condition min typ max units v os input offset voltage 27mv tcv os average input offset drift note 1 7 v/ c i b input bias current 50 250 na i os input offset current 830na v cm input voltage range +13.5 +13.8 v 15.0 15.3 v cmrr common mode rejection ratio v cm = +13.5v, 15.0v 65 100 db psrr power supply rejection ratio v s = 2.5v to 15v 65 110 db a vol large signal voltage gain v o = 10v 25 180 v/mv v out maximum output voltage swing 12.5 14 v b w bandwidth 2.5 mhz s r slew rate 6v/ s i sc output short circuit current sourcing or sinking 30 50 ma i s supply current 1.3 2.0 ma electrical characteristics (single supply) v+ = +5v, v = 0v, v cm = 0.1v; t a = 25 c, bold values indicate 40 c t a +85 c, t a = t j ; unless noted symbol parameter condition min typ max units v os input offset voltage 27mv tcv os average input offset drift note 1 7 v/ c i b input bias current 65 250 na i os input offset current 830na v cm input voltage range +3.5 +3.7 v 0 0.3 v cmrr common mode rejection ratio v cm = 0v to 3.5v 45 70 db psrr power supply rejection ratio v s = 2.5v to 15v 65 105 db a vol large signal voltage gain v o = 1.5v to 3.5v, r l = 2k 15 170 v/mv v out maximum output voltage swing r l = 10k to gnd +3.8 +4.0 v r l = 10k to +5v +1.0 +1.2 v i sc output short circuit current sourcing or sinking 20 40 ma i s supply current 1.2 1.8 ma general note: devices are esd protected; however, handling precautions are recommended. note 1: not production tested. absolute maximum ratings supply voltage (v v+ v v ) ............................. 36v or 18v differential input voltage (v in+ v in ) ....................... 36v input voltage (v in+ , v in ) ..................... (v v 0.3v) to v v+ output short circuit current duration ............................... operating ratings supply voltage .................................................... 4v to 32v ambient temperature range ..................... 40 c to +85 c sot-23-5 thermal resistance ( ja ) ..................... 220 c/w (mounted to printed circuit board)
june 1999 3 MIC6211 MIC6211 micrel typical characteristics 30 40 50 60 70 80 90 -40 -20 0 20 40 60 80 100 input bias current (na) temperature ( c) input bias current vs. temperature v s = 5v v s = 15v 0 5 10 15 20 -40 -20 0 20 40 60 80 100 input offset current (na) temperature ( c) input offset current vs. temperature v s = 15v v s = 5v 0 0.5 1.0 1.5 0 5 10 15 20 25 30 supply current (ma) supply voltage (v) supply current vs. supply voltage -20 0 20 40 60 80 100 120 0.01 0.1 1 10 100 1,000 10,000 voltage gain (db) frequency (khz) voltage gain vs. frequency v s = 15v -20 -10 0 10 20 30 270 225 180 135 90 45 0.1 1.0 10 voltage gain (db) phase ( ) frequency (mhz) gain phase gain and phase vs. frequency v s = 15v 72 gnd +10v 10v input voltage output voltage large-signal transient response 10v gnd +10v a v = +1 r l = 2k c l = 10pf v s = 15v 2 s/div gnd +50mv 50mv input voltage output voltage small-signal transient response 50mv gnd +50mv a v = +1 r l = 2k c l = 100pf v s = 15v 500ns/div 1.0 1.1 1.2 1.3 1.4 -40 -20 0 20 40 60 80 100 supply current (ma) temperature ( c) supply current vs. temperature v s = 15v v s = 5v
MIC6211 micrel MIC6211 4 june 1999 0 5 10 15 20 25 30 10 100 1000 3000 peak-to-peak output voltage (v) frequency (khz) large-signal frequency response v s = 15v r l = 2k t a = 25 c 50 60 70 80 90 100 110 0.01 0.1 1 10 100 1000 cmrr (db) frequency (khz) common mode rejection ratio vs. frequency v s = 15v 40 45 50 55 60 65 -40 -20 0 20 40 60 80 100 short circuit current (ma) temperature ( c) short circuit current vs. temperature v s = 15v 50 60 70 80 90 100 110 120 130 0.001 0.01 0.1 1 10 100 psrr (db) frequency (khz) power supply rejection ratio vs. frequency v s = 15v +psrr -psrr noise voltage (4 v/div) 0.1hz to 10hz noise v s = 15v 1s/div noise voltage (5 v/div) wideband noise v s = 15v 5ms/div
june 1999 5 MIC6211 MIC6211 micrel functional diagram 20 ? 20 ? v+ v out v (gnd) in +in MIC6211 c c 4 3 5 1 2
MIC6211 micrel MIC6211 6 june 1999 applications information common-mode range and output voltage the input common-mode range of the MIC6211 is from the negative supply voltage to 1.2v below the positive supply voltage . the output voltage swings within 1v of the positive and negative supply voltage. voltage buffer figure 1 shows a standard voltage follower/buffer. the output voltage equals the input voltage. this circuit is used to buffer a high impedance signal source. this circuit works equally well with single or split supplies. 3 1 4 v in v out = v in v out figure 1. voltage buffer inverting amplifier figure 2 shows an inverting amplifier with its gain set by the ratio of two resistors. this circuit works best with split sup- plies, but will perform with single supply systems if the non- inverting input (+ input) is biased up above ground. 3 1 4 v in v out r1 r2 v out v in r1 r2 figure 2. inverting amplifer voltage controlled current sink figure 3 is a voltage controlled current sink. a buffer transis- tor forces current through a programming resistor until the feedback loop is satisfied. current flow is v in /r. this circuit works with single or split supplies. 3 1 4 v in r i v in r figure 3. voltage controlled current sink high-pass filter figure 4 is an active filter with 20db (10 ) gain and a low- frequency cutoff of 10hz. the high gain-bandwidth of the MIC6211 allows operation beyond 100khz. this filter con- figuration is designed for split supplies. 1f 1f 4 3 332k 0.1f 7.5k v in v out 1 figure 4a. high-pass filter -20 -10 0 10 20 30 1 10 100 1,000 10,000 100,000 v out (db) frequency (hz) 1 10 1k 100k figure 4b. high-pass filter response summing amplifier figure 5 is a single supply summing amplifier. in this configu- ration, the output voltage is the sum of v1 and v2, minus the sum of v3 and v4. by adding more resistors to either the inverting or non-inverting input, more voltages may be summed. this single supply version has one important re- striction: the sum of v1 and v2 must exceed the sum of v3 and v4, since the output voltage cannot pull below zero with only a single supply. v out v2 v4 v3 v1 r r r r r r all resistors are equal. v out = v1 + v2 v3 v4 v1 + v2 > v3 + v4 for single supply operation 1 3 4 figure 5. summing amplifier
june 1999 7 MIC6211 MIC6211 micrel package information 0.20 (0.008) 0.09 (0.004) 0.60 (0.024) 0.10 (0.004) 3.02 (0.119) 2.80 (0.110) 10 0 3.00 (0.118) 2.60 (0.102) 1.75 (0.069) 1.50 (0.059) 0.95 (0.037) ref 1.30 (0.051) 0.90 (0.035) 0.15 (0.006) 0.00 (0.000) dimensions: mm (inch) 0.50 (0.020) 0.35 (0.014) 1.90 (0.075) ref sot-23-5 (m5)
MIC6211 micrel MIC6211 8 june 1999 micrel inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or pat ent right of micrel inc. ? 1999 micrel incorporated
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