unisonic technologies co., ltd pa3211 preliminary cmos ic www.unisonic.com.tw 1 of 4 copyright ? 2011 unisonic technologies co., ltd qw-r502-451.b rail to rail i/o, high-slew-rate op amp ? description the utc pa3211 is an input/output rail-to-rail operational amplifier. this device can be oper ated on either a single supply varying from +3v to +5.5v or dual supply ranging from 1.5v to 2.75v. the utc pa3211 has a perfect ac performance with 6.5mhz bandwidth, 5.23v/ s slew rate. the supply current for each amplifier of the utc pa3211 is only 500 a that makes it suitable fo r low current consumption applications to control high current loads. applications include audio amplification for computers, sound ports, sound cards and set-top boxes. the utc pa3211 is generally applied in portable equipment, headphone driver, multimedia audio, battery-powered equipment, asic input or output ampl ifier, sensor amplifier, and low power/low voltage device. ? features * single-supply operation: +3v ~ +5.5v * input / output rail-to-rail * low quiescent current: 500 a @ 5v * with low input current * 5.23v/ s high slew rate * high output driving capacity * 6.5mhz high gain-bandwidth product * 70db high psrr ? ordering information ordering number package packing lead free halogen free PA3211L-AF5-R pa3211g-af5-r sot-25 tape reel (1) r: tape reel (2) af5: sot-25 (3) g: halogen free, l: lead free PA3211L-AF5-R (1)packing type (2)package type (3)lead free
pa3211 preliminary cmos ic unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r502-451.b ? marking information 3 2 1 3211 5 4 l: lead free g: halogen free ? pin configuration 12 3 4 5 in+ v ss out in- v dd ? pin description pin no. pin name description 1 in+ positive differential input 2 v ss ground 3 in- negative differential input 4 out output 5 v dd positive analog supply of the cell ? block diagram
pa3211 preliminary cmos ic unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r502-451.b ? absolute maximum rating parameter symbol ratings unit all other pins v ss -0.3 ~ v dd +0.3 v supply voltage v dd ~ v ss 6.5 v power dissipation (t a =25c) p d 520 mw junction temperature t j 150 c operating temperature t opr -40 ~ +85 c storage temperature t stg -65 ~ +160 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit junction to ambient ja 240 c/w ? electrical characteristics (v dd =5v, v ss =0v, t a =25c, c l =10pf, r l =1k ? ~v dd /2, unless otherwise specified.) parameter symbol test conditions min typ max unit supplies supply voltage range (note) v dd 3 5.5 v supply current i dd no load 0.5 0.7 ma total power dissipation p tot no load 0.25 0.35 mw dc characteristics input offset voltage v i ( os ) 15 10 mv common mode voltage v cm inferred from cmrr test 0 5 v input bias current i b 1.5 20 na input bias current offset i os 1.5 20 na input resistance r in 1000 m ? open loop gain a v 85 95 db maximum output current i o v out =v in x 90% 55 66 ma output voltage swing high v oh r l =2k ? 4.96 4.99 v output voltage swing low v ol r l =2k ? 0.012 0.04 v power supply rejection ratio psrr 3v v dd 5.5v 45 70 db common-mode rejection ratio cmrr v ss v cm v dd 45 65 db ac characteristics gain-bandwidth product gbwp open-loop, no load 6.5 mh z slew-rate sr measured from 10%~90% of 4v p-p step, r l =1k ? , c l =10pf 5.23 v/ s phase margin pm 60 deg maximum output power i o thd<0.1%, r l =16 ? 100 ma notes: guaranteed by the power-suppl y rejection ratio (psrr) test
pa3211 preliminary cmos ic unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r502-451.b ? typical application circuit v dd 5 1 + 3 - 2 pa3211 4 in out r l 2k utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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