1 40v low power dual and quad operational amplifier ISL28325, isl28345 the ISL28325 and isl28345 are dual and quad general purpose amplifiers featuring low noise vs power consumption. the combination of low noise and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. applications for this amplifier in clude active filters, medical and analytical instrumentat ion, power supply controls, and industrial controls. the ISL28325 is offered in 8 ld soic and msop packages and the isl28345 is offered in the 14 ld soic package and operates over the -40c to +125c temperature range. features ? input offset voltage . . . . . . . . . . . . . . . . . . . . . . . . . .1mv, max. ? input bias current . . . . . . . . . . . . . . . . . . . . . . . . . . 5na, max. ? low current consumption. . . . . . . . . . . . . . . . . . . . . . . . 500a ? voltage noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9nv/hz ? wide supply range . . . . . . . . . . . . . . . . . . . . . . . . .4.5v to 40v ? operating temperature range. . . . . . . . . . .-40c to +125c ? pb-free (rohs compliant) applications ? analytical instrumentation ? medical instrumentation ? spectral analysis equipment ? active filter blocks ? thermocouples and rtd reference buffers ? data acquisition ? power supply control figure 1. typical application - + output v + r 1 v - r 2 c 1 c 2 sallen-key low pass filter (10khz) v in 1.84k 4.93k 3.3nf 8.2nf september 27, 2011 fn7854.0 caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | copyright intersil americas inc. 2011. all rights reserved intersil (and design) is a trademark owned by intersil corporation or one of its subsidiaries. all other trademarks mentioned are the property of their respective owners.
ISL28325, isl28345 2 september 27, 2011 fn7854.0 ordering information part number (notes 1, 2, 3) part marking temp range (c) package (pb-free) pkg. dwg. # ISL28325fbz 28325 fbz -40 to +125 8 ld soic m8.15e ISL28325fuz 8325z -40 to +125 8 ld msop m8.118b isl28345fbz 28345 fbz -40 to +125 14 ld soic mdp0027 notes: 1. add ?-t*? suffix for tape and reel. please refer to tb347 for details on reel specifications. 2. these intersil pb-free plastic packaged products employ spec ial pb-free material sets, molding compounds/die attach materials , and 100% matte tin plate plus anneal (e3 termination finish , which is rohs compliant and compatible wi th both snpb and pb-free soldering opera tions). intersil pb- free products are msl classified at pb-free peak reflow temperat ures that meet or exceed the pb-free requirements of ipc/jedec j std-020. 3. for moisture sensitivity level (msl), please see device information page for ISL28325, isl28345 . for more information on msl please see techbrief tb363 . pin configurations ISL28325 (8 ld soic, msop) top view isl28345 (14 ld soic) top view v out _a -in_a +in_a v - 1 2 3 4 8 7 6 5 v+ v out _b -in_b +in_b + - +- -+ - + -+ - + bc ad v out _a -in_a +in_a v + 1 2 3 4 5 6 7 10 9 8 11 12 13 14 +in_b -in_b v out _b v - +in_c -in_c v out _c v out _d -in_d +in_d
ISL28325, isl28345 3 september 27, 2011 fn7854.0 pin descriptions ISL28325 (8 ld soic, msop) isl28345 (14 ld soic) pin name equivalent circuit description 3 3 +in_a circuit 1 amplifier non-inverting input 5 5 +in_b -10+in_c -12+in_d 4 11 v- circuit 3 negative power supply 2 2 -in_a circuit 1 amplifier inverting input 66-in_b -9-in_c -13-in_d 8 4 v+ circuit 3 positive power supply 11v out _a circuit 2 amplifier output 77v out _b -8v out _c -14v out _d circuit 2 circuit 1 v+ v- circuit 3 capacitively coupled esd clamp in- v+ v- in+ 500 500 v+ v- out
ISL28325, isl28345 4 september 27, 2011 fn7854.0 absolute maximum rating s thermal information maximum supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....42v maximum differential input current . . . . . . . . . . . . . . . . . . . . . . . . . . 20ma maximum differential input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42v min/max input voltage . . . . . . . . . . . . . . . . . . . . . . . . v- - 0.5v to v+ + 0.5v max/min input current for input voltage >v+ or ISL28325, isl28345 5 september 27, 2011 fn7854.0 typical performance curves v s = 15v, v cm = 0v, r l = open, unless otherwise specified. figure 2. open-loop gain, phase vs frequency, r l =10k , c l = 10pf figure 3. open-loop gain, phase vs frequency, r l =10k , c l = 100pf figure 4. cmrr vs frequency, v s = 2.25, 5v, 15v figure 5. small signal transient response, v s = 5v, 15v figure 6. large signal transient response vs r l v s = 5v, 15v open loop gain (db)/phase () frequency (hz) -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 200 0.1m 1m 10m 100m 1 10 100 1k 10k 100k 1m 10m 100m r l = 10k simulation c l = 10pf gain phase open loop gain (db)/phase () frequency (hz) -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 200 0.1m 1m 10m 100m 1 10 100 1k 10k 100k 1m 10m 100m r l = 10k simulation c l = 100pf gain phase cmrr (db) frequency (hz) 0 20 40 60 80 100 120 140 160 180 200 220 1m 10m 100m 1 10 100 1k 10k 100k 1m 10m 100m r l = inf simulation c l = 10pf v s = 2.5v v s = 5v v s = 15v time (s) small signal (mv) -10 0 10 20 30 40 50 60 0 5 10 15 20 25 30 35 40 rl = 10k av = +1 cl = 4pf v out = 50mv p-p v s = 15v time (s) large signal (v) -2.4 -2.0 -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 1.2 1.6 2.0 2.4 0 102030405060708090100 av = +1 cl = 4pf v out = 4v p-p v s = 5v, rl = 2k, 10k v s = 15v, rl = 2k, 10k
ISL28325, isl28345 6 september 27, 2011 fn7854.0 applications information functional description the ISL28325 and isl28345 are dual and quad general purpose amplifiers featuring low noise vs power consumption. they are offered in industry standard pinouts in 8 ld soic, 8 ld msop and 14 ld soic packages. applications for this amplifier include active filters, medical and anal ytical instrumentation, power supply controls, and industrial controls.. operating voltage range the devices are designed to operate over the 4.5v (2.25v) to 40v (20v) range over the -40c to +125c temperature range. for best amplifier performance, decouple the power supply with a 0.01f or larger capacitors by placing them close to the supply pins of the amplifier. input esd diode protection the input terminals (in+ and in-) have internal esd protection diodes to the positive and negative supply rails, series connected 500 current limiting resistors and an anti-parallel diode pair across the inputs. the series resistors limit the high feed-through currents that can occur in pulse applications wh en the input dv/dt exceeds the 0.4v/s slew rate of the amplifier. without the series resistors, the input can forward-bias the anti-parallel diodes causing current to flow to the output resulting in severe distortion and possible diode failure. in applications where one or both amplifier input terminals are at risk of exposure to high voltages beyond the power supply rails, current limiting resistors may be needed at the input terminal to limit the current through the po wer supply esd diodes to 20ma max.
ISL28325, isl28345 7 intersil products are manufactured, assembled and tested utilizing iso9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality intersil products are sold by description only. intersil corporat ion reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnished by intersil is believed to be accurate and reliable. however, no responsi bility is assumed by intersil or its subsid iaries for its use; nor for any infringem ents of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of i ntersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com september 27, 2011 fn7854.0 for additional products, see www.intersil.com/product_tree products intersil corporation is a leader in the design and manufacture of high-performance analog semico nductors. the company's product s address some of the industry's fastest growing markets, such as , flat panel displays, cell phones, handheld products, and noteb ooks. intersil's product families address power management and analog sign al processing functions. go to www.intersil.com/products for a complete list of intersil product families. for a complete listing of applications, rela ted documentation and related parts, please see the respective device information p age on intersil.com: ISL28325, isl28345 to report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff fits are available from our website at: http://rel.intersil.co m/reports/search.php revision history the revision history provided is for inform ational purposes only and is believed to be accurate, but not warranted. please go t o web to make sure you have the latest revision. date revision change 09/27/2011 fn7854.0 initial release
ISL28325, isl28345 8 september 27, 2011 fn7854.0 package outline drawing m8.15e 8 lead narrow body small outline plastic package rev 0, 08/09 unless otherwise specified, tolerance : decimal 0.05 the pin #1 identifier may be either a mold or mark feature. interlead flash or protrusions shall not exceed 0.25mm per side. dimension does not include interlead flash or protrusions. dimensions in ( ) for reference only. dimensioning and tolerancing conform to amse y14.5m-1994. 3. 5. 4. 2. dimensions are in millimeters. 1. notes: detail "a" side view ?a typical recommended land pattern top view a b 4 4 0.25 a mc b c 0.10 c 5 id mark pin no.1 (0.35) x 45 seating plane gauge plane 0.25 (5.40) (1.50) 4.90 0.10 3.90 0.10 1.27 0.43 0.076 0.63 0.23 4 4 detail "a" 0.22 0.03 0.175 0.075 1.45 0.1 1.75 max (1.27) (0.60) 6.0 0.20 reference to jedec ms-012. 6. side view ?b?
ISL28325, isl28345 9 september 27, 2011 fn7854.0 package outline drawing m8.118b 8 lead mini small outline plastic package rev 0, 7/11 detail "x" side view 2 typical recommended land pattern top view pin# 1 id 0.23 - 0.36mm detail "x" 0.10 0.05mm (4.40) (3.00) (5.80) h c 1.10 max 33 gauge plane 0.25 0.95 ref 0.53 0.10mm b 3.00.10mm 12 8 0.860.05mm seating plane a 0.65mm bsc 3.00.10mm (0.40) (1.40) (0.65) d 5 5 0.15 - 0.05mm side view 1 0.08 c a-b d m 0.10 c dimensioning and tolerancing conform to jedec mo-187-aa plastic interlead protrusions of 0.15mm max per side are not dimensions in ( ) are for reference only. dimensions are measured at datum plane "h". plastic or metal protrusions of 0.15mm max per side are not dimensions are in millimeters. 3. 4. 5. 6. notes: 1. 2. and amsey14.5m-1994. included. included. 4.90.20mm
ISL28325, isl28345 10 september 27, 2011 fn7854.0 small outline package family (so) gauge plane a2 a1 l l1 detail x 4 4 seating plane e h b c 0.010 b m ca 0.004 c 0.010 b m ca b d (n/2) 1 e1 e n n (n/2)+1 a pin #1 i.d. mark h x 45 a see detail ?x? c 0.010 mdp0027 small outline package family (so) symbol inches tolerance notes so-8 so-14 so16 (0.150?) so16 (0.300?) (sol-16) so20 (sol-20) so24 (sol-24) so28 (sol-28) a 0.068 0.068 0.068 0.104 0.104 0.104 0.104 max - a1 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.003 - a2 0.057 0.057 0.057 0.092 0.092 0.092 0.092 0.002 - b 0.017 0.017 0.017 0.017 0.017 0.017 0.017 0.003 - c 0.009 0.009 0.009 0.011 0.011 0.011 0.011 0.001 - d 0.193 0.341 0.390 0.406 0.504 0.606 0.704 0.004 1, 3 e 0.236 0.236 0.236 0.406 0.406 0.406 0.406 0.008 - e1 0.154 0.154 0.154 0.295 0.295 0.295 0.295 0.004 2, 3 e 0.050 0.050 0.050 0.050 0.050 0.050 0.050 basic - l 0.025 0.025 0.025 0.030 0.030 0.030 0.030 0.009 - l1 0.041 0.041 0.041 0.056 0.056 0.056 0.056 basic - h 0.013 0.013 0.013 0.020 0.020 0.020 0.020 reference - n 8 14 16 16 20 24 28 reference - rev. m 2/07 notes: 1. plastic or metal protrusions of 0.006? maximum per side are not included. 2. plastic interlead protrusions of 0.010? maximum per side are not included. 3. dimensions ?d? and ?e1? are measured at datum plane ?h?. 4. dimensioning and tolerancing per asme y14.5m - 1994
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