unisonic technologies co., ltd 3422 linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2011 unisonic technologies co., ltd qw-r105-029,ba high performance dual bipolar operatinal amplifier ? description the utc 3422 is a dual high performances operational amplifier featuring speed of 25mhz and single supply operation from 3v ~ 36v. the utc 3422 is therefore an enhanced replacement of standard dual operational amplifiers. ? features * single supply operation: 3v ~ 36v * dual supply operation: 1.5v ~ 18v * high gain bandwidth product: 25mhz * high slew rate: 15v/ s * low voltage noise: 14nv/ hz * no phase inversion * esd tolerance: 2kv * latch-up immunity dip-8 sop-8 ? ordering information ordering number lead free halogen free package packing 3422l-d08-t 3422g-d08-t dip-8 tube 3422l-s08-r 3422G-S08-R sop-8 tape reel 3422l-s08-t 3422g-s08-t sop-8 tube
3422 linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r105-029,ba ? pin configuration ? block diagram (1/2 shown) 20 a 250 a 20 a esd 130 a 130 a vcc + 600 a cc output non inverting input inverting input esd vcc -
3422 linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r105-029,ba ? absolute maximum ratings parameter symbol ratings unit supply voltage v cc 18 ~ 36 v differential input voltage (note 1) v id 36 v input voltage (note 1) v in 18 v output short-circuit duration (note 2) infinite maximum power dissipation (note 2) p tot 500 mw operating temperature t opr -40 ~ +125 junction temperature t j +150 storage temperature t stg -65 ~ +150 notes: 1. either or both input voltag es must not exceed the magnitude of v cc + or v cc - 2. power dissipation must be considered to ensure maximum junction temperature (t j ) is not exceeded ? operating conditions parameter symbol ratings unit supply voltage v cc 3 ~ 36 v
3422 linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r105-029,ba ? electrical characteristics (vcc+=15v, vcc-=-15v, ta=25 , unless otherwise specified) parameter symbol test conditions min typ max unit v cc + =+15v, v cc - =-15v 2.5 t min t a t max 3.5 input offset voltage v io v ic =0v, v o =0v v cc + =+5v, v cc - =0v 2.5 mv input offset voltage drift v io v ic =0v, v o =0v 2 v/ input offset current i io v ic =0v, v o =0v 3 65 na input bias current i ib v ic =0v, v o =0v 100 650 na common mode input voltage v icm v cc - to v cc + -1.8 v large signal voltage gain a vd r l =2k ? , v o =0v ~ +10v t min t a t max 32 20 100 v/mv v oh 13.4 13.9 v cc + =+15v,v cc - =-15v, r l =2k ? v ol -13.9 -13.5 v oh 13.4 14 r l =10k ? v ol -14.7 -14.1 v oh 3.7 output voltage swing v opp v id =1v v cc + =+5v, v cc - =0v, r l =2k ? v ol 0.15 0.2 v source 25 37 output short circuit current i o v id =1v, v o =0v, sink 25 37 ma common mode rejection ratio cmr v ic =-15v ~ +13.2v 80 100 db supply voltage rejection ratio svr v cc + / v cc - =+15v/-15v ~ +5v/-5v 90 105 db v cc + =+15v, v cc - =-15v 2.75 t min t a t max 2.15 3 supply current i cc v o =0v,no load, each amplifier v cc + =+5v,v cc - =0v 2.75 ma slew rate sr v i =-10v~10v,c l =100pf,r l =2k ? , a v =+1 8 15 v/ s gain bandwith product gbp f=100khz, r l =2k ? , c l =100pf 17 25 mhz unity gain bandwith b open loop 5 mhz 50 phase margin m r l =2k ? r l =2k ? , c l =100pf 40 degrees equivalent input noise voltage e n r s =100 ? , f=1khz 14 nv hz channel separation v o1 /v o2 f=20hz ~ 20khz 120 db total harmonic distortion thd v cc =15v, f=1khz, a vcl =20db, r l =600 ? , v o =3vrms 0.003 %
3422 linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r105-029,ba ? applications information utc 3422 in comparator application the utc 3422 is a dual bipolar operational amplifier offering a single supply operation from 3v ~ 36v with very good performances: medium speed (25mhz), unity gain stability and low noise. most of operational amplifie rs are not suited for compar ator use because of low trans ition speed, output signal incompatible with standard logics level and mainly, phas e inversion. the phase inversion occures when a strong differential signal is applied to the device inputs. the output level is then inverted and show s a wrong logic state. the utc 3422 does not present this problematic behaviour. figure 1 shows basic comparator applic ation. figure 2 shows the curves of the device response in standard comparator configuration wi thout external components. transition speed : typical transition speed under a single 5v supply voltage is about 2 s from 50mv overdrive. v oh(min) . is 3.7v and v ol(max) . is 0.2v (2k ? load) making it compatible with standard logic families. figure 3 shows output signal transition for a 50m v input signal overdrive respectively of 3 s. figure 4 shows output signal transition for a 250m v input signal overdrive respectively of 1 s. input voltages, v in +(v), v ref (v) output voltage, vo (v) figure.1 basic comparator applicat ion figure.2 operating conditions 0 0.5 time (0.5 s/div) 1.0 1.5 2.0 v ref vo v in + input voltages, v in + (v) 4 2 0 output voltage, vo (v) 3 s 6 0 0.5 time (0.5 s/div) 1.0 1.5 2.0 v ref vo v in + input voltages, v in + (v) 4 2 0 output voltage, vo (v) 1 s 6 figure.3 transition speed @ 50mv overdrive figure.4 transition speed @ 250mv overdrive
3422 linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r105-029,ba ? applications information(cont.) phase inversion the utc 3422 keeps the right output level thanks to its specific input structures at high di fferential input voltage. the advantage is obvious on the following figures and can be also an advantage in linear use when saturation might occure. figure 5 shows the behaviour in follower stage with saturation output of utc 3422 . figure 6 shows the saturation behaviour wi th 15mhz standard operational amplifier. input & output voltages, v id (v), vo (v) input & output voltages, v id (v), vo (v) figure.5 behaviour with utc3422 figure.6 saturation behaviour with 15mhz standard operational amplifier 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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