a s321 document number: ds 36976 rev. 2 - 2 1 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated low power single operational amplifier description the as321 is a high gain and internally frequency compensated operational amplifier specifically designed to operate from a single power supply. operation from split power supply is also possible and the low power supply current drain is independent of the magnitude of the power supply voltages. typical applications include battery charger, active filters, general purpose controllers and most conv entional operational amplifier circuits. the as321 is compatible with industry standard 321. the as321 is available in sot - 23 - 5 packages. features ? excellent phase margin: 60 deg. ? large voltage gain: 100db (typical) ? low input bias current: 20na ( typical) ? low input offset voltage: 2mv (typical) ? low supply current: 0.35ma at v cc = 5v ? wide power supply voltage: ? single supply: 3 v to 36v ? dual supplies: 1. 5 v to 18v ? wide input common mode voltage range: 0v to v cc - 1.5v pin assignments (top view) (so t - 23 - 5 / k package ) applications ? battery charger ? active filters ? general purpose c ontrollers, i nstrument s typical applications circuit power amplifier d c summing amplifier input + 1 2 3 4 5 input - v ee v cc output
a s321 document number: ds 36976 rev. 2 - 2 2 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated typical applications circuit (cont.) ac coupled non - inverting amplifier fixed current sources pulse generator dc coupled low - pass active filter
a s321 document number: ds 36976 rev. 2 - 2 3 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated functional block diagram absolute maximum ratings ( note 1 ) symbol parameter rating unit v s (v cc - v ee ) power supply voltage 40 v v id differential input voltage 40 v v in input voltage - 0.3 to 40 v ja thermal resistance to ambient 260 ? c /w t j operating junction temperature + 150 ? c t stg storage temperature range - 65 to +150 ? c t lead lead temperature (soldering, 10 seconds) + 260 ? c note 1 : stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. these are stres s ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating condi tions is not implied. exposure to absolute maximum ratings for extended periods may affect device reliability. recommended operating conditions symbol parameter min max unit v cc supply voltage 3 36 v t a ambient operating temperature range - 40 + 85 ? c
a s321 document number: ds 36976 rev. 2 - 2 4 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated electrical characteristics ( limits in standard typeface are for t a = + 25 o c, bold typeface applies over - 40 o c to + 85 o c (note 2) , v cc = 5v, v ee = 0v, v o = 1.4v , unless otherwise specified . ) notes: 2 . limits over the full temperature are guaranteed by design, but not tested in production . 3 . over the full input common - mode range 0v to v cc - 1.5v (at + 25 o c) . 4 . the input common - mode voltage of either input signal voltage should not be allowed to go negatively by more than 0.3v (at + 25 o c). the upper end of the common - mode voltage range is v cc - 1.5v (at + 25 o c), but either or both inputs can go to +36v without damage s , independent of the magnitude of the v cc . symbol parameter conditions min typ max unit v io input offset voltage v o = 1.4v, r s = 0?, v cc = 5v to 30v (note 3) C 2 5 mv C C 7 ? v io / ? t average temperature coefficient of input offset voltage t a = - 40 o c to + 85 o c C 7 C v/ o c i bias input bias current i in + or i in - , v cm = 0v C 20 100 na C C 200 i io input offset current i in + - i in - , v cm = 0v C 5 30 na C C 100 v cm input common mode voltage range (note 4) v cc = 30v, cmrr 50db 0 C v cc - 1.5 v i cc supply current r l = , v cc = 5v C 0.35 0.80 ma C 0.45 1.0 r l = , v cc = 30v C 0.45 1.2 C 0.65 1.5 g v large signal voltage gain v cc = 15v, v o = 1v to 11v, r l 2k? 85 100 C db 80 C C cmrr common mode rejection ratio v cm = 0v to (v cc - 1.5)v, r s 10k ? 60 70 C db 60 C C psrr power supply rejection ratio v cc = 5v to 30v, r s 10k ? 70 100 C db 60 C C i source output current source v in + = 1v, v in - = 0v, v cc = 15v, v o = 2v 20 40 C ma 20 C C i sink sink v in + = 0v, v in - = 1v, v cc = 15v, v o = 2v 10 15 C ma 5 C C v in + = 0v, v in - = 1v, v cc = 15v, v o = 0.2v 12 50 C a i sc output short circuit current to ground v cc = 15v C 40 60 m a v oh output v oltage s wing v cc = 30v, r l = 2k? 26 C C v 26 C C v cc = 30v, r l = 10k? 27 28 C 27 C C v ol v cc = 5v, r l = 10k? C 5 20 mv C C 30 thd total harmonic distortion f = 1khz , av = 20db, r l = 2k ? , v o = 2vp - p, c l = 100pf, v cc = 30v C 0.015 C % m phase margin C C 60 C deg jc thermal resistance (junction to case) sot - 23 - 5 C 101 C ? c /w
a s321 document number: ds 36976 rev. 2 - 2 5 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated 0 4 3 3 2 1 2 1 0 12 16 20 4 24 28 32 8 36 40 time ( s) 0 performance characteristics input voltage range input current supply current voltage gain open loop gain vs. frequency voltage follower pulse response output voltage (v) in put voltage (v) 0 8 16 24 32 40 60 75 90 105 120 power supply voltage (v) voltage gain (db) r l =2k ? r l =20k ? -25 0 25 50 75 100 125 0 2 4 6 8 10 12 14 16 18 20 input current (na) temperature ( o c) -20 0 20 40 60 80 0.2k 1k 10k 100k 1m 2m open loop gain (db) frequency (hz) v cc =30v, v ee =0v r l =2k ? , c l =100pf 0 5 10 15 0 5 10 15 positive negative input voltage ( + v dc ) power supply voltage ( + v dc ) 0 5 10 15 20 25 30 35 40 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 supply current (ma) supply voltage (v)
a s321 document number: ds 36976 rev. 2 - 2 6 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 time ( s) 0 4 8 12 16 2 0 performance characteristics (cont.) voltage follower pulse response (small signal) large signal frequency response output characteristics: current sourcing output characteristics: current sinking current limiting out put voltage ( m v) 1e-3 0.01 0.1 1 10 100 0.01 0.1 1 10 v cc =15v output voltage (v) output sink current (ma) v cc =5v 1k 10k 100k 1m 0 5 10 15 20 frequency (hz) output swing (v) -25 0 25 50 75 100 125 0 10 20 30 40 50 60 70 80 90 100 output current (ma) temperature ( o c) 0.1 1 10 100 0 1 2 3 4 5 6 7 8 output voltage referenced to vcc (v) output source current (ma)
a s321 document number: ds 36976 rev. 2 - 2 7 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated ordering information diodes ic 's pb - free products, as designated with " e 1" suffix in the part number, are rohs compliant . products with "g1" suffix are available in green packages. package temperature range part number marking id packing type lead free green lead free green so t - 23 - 5 - 40 c to +85 c as321ktr - e1 as321ktr - g1 e6t g6t tape & reel a s 3 2 1 x x x - x x p a c k i n g p a c k a g e p r o d u c t n a m e e 1 / g 1 t r : t a p e & r e e l k : s o t - 2 3 - 5 g 1 : g r e e n e 1 : l e a d f r e e
a s321 document number: ds 36976 rev. 2 - 2 8 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated package outline dimensions (all dimensions in mm (inch) .) (1) package type: sot - 23 - 5 2 . 8 2 0 ( 0 . 1 1 1 ) 2 . 6 5 0 ( 0 . 1 0 4 ) 1 . 5 0 0 ( 0 . 0 5 9 ) 0 . 0 0 0 ( 0 . 0 0 0 ) 0 . 3 0 0 ( 0 . 0 1 2 ) 0 . 9 5 0 ( 0 . 0 3 7 ) 0 . 9 0 0 ( 0 . 0 3 5 ) 0 . 1 0 0 ( 0 . 0 0 4 ) 0 . 2 0 0 ( 0 . 0 0 8 ) 0 . 3 0 0 ( 0 . 0 1 2 ) 8 0 3 . 1 0 0 ( 0 . 1 2 2 ) 1 . 7 0 0 ( 0 . 0 6 7 ) 3 . 0 0 0 ( 0 . 1 1 8 ) 0 . 5 0 0 ( 0 . 0 2 0 ) 0 . 1 5 0 ( 0 . 0 0 6 ) 1 . 3 0 0 ( 0 . 0 5 1 ) 0 . 2 0 0 ( 0 . 0 0 8 ) 0 . 6 0 0 ( 0 . 0 2 4 ) 1 . 8 0 0 ( 0 . 0 7 1 ) 2 . 0 0 0 ( 0 . 0 7 9 ) 0 . 7 0 0 ( 0 . 0 2 8 ) r e f t y p 1 . 4 5 0 ( 0 . 0 5 7 ) m a x
a s321 document number: ds 36976 rev. 2 - 2 9 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated suggested pad layout (1) package type: so t - 23 - 5 dimensions z (mm)/(inch) g (mm)/(inch) x (mm)/(inch) y (mm)/(inch) e1 (mm)/(inch) e2 (mm)/(inch) value 3.600/0.142 1.600/0.063 0.700/0.028 1.000/0.039 0.950/0.037 1.900/0.075 e 2 e 1 y x g z
a s321 document number: ds 36976 rev. 2 - 2 10 of 10 www.diodes.com february 2014 ? diodes incorporated as321 a product line of diodes incorporated important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other c hanges without further notice to this document and any product described herein. diodes incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license unde r its patent or trademark rights, nor the rights of others. any customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diod es incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indem nify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized applic ation. products described herein may be covered by one or more united states, international or foreign patents pending. product nam es and markings noted herein may also be covered by one or more united states, international or foreign trademarks. this d ocument is written in english but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are spe cifically not authorized for use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or syst ems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided i n the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expe cted to cause the failure of the life support device or to affect its safety or effectiveness. custo mers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support device s or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety - related requirements concerning their products and any use of diodes incorporated products in such safety - critical, life support devices or systems, notwithstanding any devices - or systems - related information or support that may be provided by diodes incorporated. further, cu stomers must fully indemnify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety - critical, life support devices or systems. copyright ? 2012, diodes incorporated www.diodes .com
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