njm2904 -1- ver.2007-05-11 single-supply dual operational amplifier general description package outline the njm2904 consists of two independent, high gain, internally frequency compensated operation amplifiers, which were designed specifically to operate from a single power supply over a wide range of voltages. operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. application areas include transducer amplifiers, dc gain blocks, and all the conventional op amp circuits, which now can be more easily implemented in single power supply systems. for example, the njm2904 can be directly operated off of the standard +5v power supply voltage, which is used in digital systems and will easily provide the required interface electronics without requiring the additional 15v power supplies. features single supply operating voltage ( +3v~+32v ) low operating current ( 0.7ma typ. ) slew rate ( 0.5v/s typ. ) bipolar technology package outline dip8, dmp8, emp8, ssop8, tvsp8, sip8 pin configuration equivalent circuit ( 1/2 shown ) pin function 1 . a output 2. a ?input 3. a +input 4. gnd 5. b +input 6. b ?input 7. b output 8. v + 8 7 6 5 1 2 3 4 a b ( top view ) njm2904d, njm2904m njm2904e, njm2904v njm2904rb 1 a b 1 234567 8 njm2904l njm2904d njm2904m njm2904e njm2904v njm2904l njm2904rb 1
njm2904 - 2 - ver.2007-05-11 absolute maximum ratings ( ta=25 ? c ) parameter symbol ratings unit supply voltage v + (v + /v - ) 32 ( or 16 ) v differential input voltage v id 32 v input voltage v ic -0.3~+32 v ( dip8 ) 500 ( dmp8 ) 300 ( emp8 ) 300 ( ssop8 ) 300 ( tvsp8 ) 320 power dissipation p d ( sip8 ) 800 mw operating temperature range t opr -40~+85 ? c storage temperature range t stg -50~+125 ? c electrical characteristics ( ta=25 ? c,v + =5v ) parameter symbol test condition min. typ. max. unit input offset voltage v io r s =0 ? - 2 7 mv input offset current i io - 5 50 na input bias current i b - 25 250 na large signal voltage gain a v r l 2k ? - 100 - db maximum output voltage swing v om r l =2k ? 3.5 - - v input common mode voltage range v icm 0~3.5 - - v common mode rejection ratio cmr - 85 - db supply voltage rejection ratio svr - 100 - db output source current i source v in + =1v,v in - =0v 20 30 - ma output sink current i sink v in + =0v,v in - =1v 8 20 - ma channel separation cs f=1k~20khz,input referred - 120 - db operating current i cc r l = - 0.7 1.2 ma slew rate sr v + /v - =15v - 0.5 - v/s unity gain bandwidth f t v + /v - =15v - 0.6 - mhz
njm2904 - 3 - ver.2007-05-11 typical characteristics
njm2904 - 4 - ver.2007-05-11 typical characteristics
njm2904 - 5 - ver.2007-05-11 typical characteristics
njm2904 - 6 - ver.2007-05-11 application [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. improvement of cross-over distortion equivalent circuit at the output stage njm2904,in its static state ( no in and output condition ) when design,q u being biassed by constant current ( break down beam ) yet,q l stays off. while using with both power source mode,the cross-ove r distortion might occur instantly when q l on. there might be cases when application for amplifier of audi o signals,not only distortion but also the apparent frequenc y bandwidth being narrowed remarkably. it is adjustable especially when using both power sourc e mode,constantly to use with higher current on q u than the load current ( including feedback current ),and then connect th e pull-down resister r p at the part between output and gnd pins.
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