high voltage, precision operational amplifier preliminary technical data ADA4700-1 rev. prb information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ?2013 analog devices, inc. all rights reserved. features low input offset voltage: 0.2 mv typical high output current drive: 20ma, 50 ma wide range of operating voltage: 5 v to 50 v specified at 5 v, 24 v, and 50 v high slew rate: 20 v/s typical high gain bandwidth product: 3 mhz typical on-board thermal shutdown at 165c ambient temperature range of ?40c to +85c low input bias current: i bias 15 na typical applications automated and bench top test equipment high voltage regulators and power amplifiers data acquisition and signal conditioning piezo drivers and predrivers general-purpose current sensing pin configuration figure 1. general description the ADA4700-1 is a high voltage precision operational amplifier with a wide operating voltage (5 v to 50 v) and relatively high output current drive available as a single op amp in an soic package. it combines low power consumption, high bandwidth, and a slew rate with unity-gain stability and phase inversion free performance. the ability to swing near rail-to-rail at the output enables designers to maximize signal-to-noise ratios (snrs). the ADA4700-1 is designed for applications requiring both ac and precision dc performance, making the ADA4700-1 useful in a wide variety of applications, including high voltage test equipment and instrumentation, high voltage regulators and power amplifiers, power supply control and protection, and as an amplifier or buffer for transducers with wide output ranges. it is particularly well suited for high intensity led testing applications where it provides highly accurate voltage and current feedback as well as a predriver to provide accurate voltage and/or current sourcing stimulus to the led string under test. the ADA4700-1 is specified over the industrial temperature range of ?40c to +85c and includes an on-board thermal shutdown at 165c internal junction temperature as well as an internal current limit for safety. the ADA4700-1 is available in a thermally enhanced, 8-lead soic package that uses a small exposed metal pad on the bottom of the package to allow the customer to heat sink the part to the printed circuit board (pcb). for proper operation, the exposed pad must be connected to v?. nc ?in +in v? nc v+ out nc 1 2 3 4 8 7 6 5 top view (not to scale) ADA4700-1 notes 1. nc = no connect. do not connect to this pin. 2. the exposed pad must be connected to v?. 11551-001
ADA4700-1 preliminary technical data rev. prb | page 2 of 10 table of contents features .............................................................................................. 1 ? applications ....................................................................................... 1 ? pin configuration ............................................................................. 1 ? general description ......................................................................... 1 ? revision history .......................... error! bookmark not defined. ? specifications ..................................................................................... 3 ? v sy = 50 v electrical characteristics ....................................... 3 ? v sy = 24 v electrical characteristics ....................................... 5 ? v sy = 5 v electrical charateristics ........................................... 7 ? absolute maximum ratings ............................................................8 ? maximum power dissipation ......................................................8 ? thermal resistance .......................................................................8 ? esd caution...................................................................................8 ? pin configuration and function description ...............................9 ? outline dimensions ....................................................................... 10 ? ordering guide .......................................................................... 10 ?
preliminary technical data ADA4700-1 rev. prb | page 3 of 10 specifications v sy = 50 v electrical characteristics v sy = 50 v, v cm = v sy /2, t a = 25c, unless otherwise specified. table 1. parameter symbol test conditions/comments min typ max unit input characteristics offset voltage v os 0.2 2 mv ?40c < t a < +85c 2.5 mv offset voltage drift v os /t ?40c < t a < +85c 2 13 v/c input bias current i b 15 30 na ?40c < t a < +85c 50 na input offset current i os 2 25 na ?40c < t a < +85c 30 na input voltage range ivr ?40c < t a < +85c (v?) + 3 (v+) ? 3 v common-mode rejection ratio cmrr (v?) + 3 v < v cm < (v+) C 3 v 103 108 db ?40c < t a < +85c 103 db large signal voltage gain a vo ?47 v < v out < +47 v, r l = 2k 103 106 db ?40c < t a < +85c 100 db input capacitance common-mode c incm tbd pf differential c indm tbd pf input resistance r in common mode and differential mode tbd m output characteristics output voltage high r l = 10 k to gnd 48 48.5 v ?40c < t a < +85c 47.8 v r l = 2 k to gnd 47.5 48 v ?40c < t a < +85c 47.3 v output voltage low r l = 10 k to gnd -48.5 -48 v ?40c < t a < +85c -47.8 v r l = 2 k to gnd ?48 -47.5 v ?40c < t a < +85c -47.3 v capacitive load drive c l a v = +1 tbd nf a v = +10 tbd nf short circuit limit i sc sourcing and sinking tbd tbd ma closed-loop impedance z out f = 10 mhz, a v = +1 tbd power supply power supply rejection ratio psrr v s = 4.5 v to 55 v 110 130 db ?40c to +85c 110 db supply current per amplifier i sy v o = v s /2 1.7 2.2 ma ?40c < t a < +85c 2.4 ma dynamic performance slew rate sr v 0 = 45 v step, r l = 2 k, c l = 300 pf 20 v/s gain bandwidth product gbp v in = 5 mv p-p, a v = +100 2.5 mhz unity-gain crossover ugc v in = 5 mv p-p, a v = +1 tbd mhz ?3 db bandwidth ?3 db v in = 5 mv p-p, a v = ?1 tbd mhz phase margin m v in = 5 mv p-p, r l = 1m, c l = 35 pf; a v = -1 65 degrees settling time to 0.1% t s v in = 30 v p-p, r l = 10 k, c l = 5 pf, a v = -1 tbd s settling time to 0.01% t s v in = 30 v p-p, r l = 10 k, c l = 5 pf, a v = -1 tbd s
ADA4700-1 preliminary technical data rev. prb | page 4 of 10 parameter symbol test conditions/comments min typ max unit noise performance total harmonic distortion + noise thd + n g= +1, v in = 10 v p-p at 1 khz; r l = 10k ? bandwidth = 80 khz tbd % bandwidth = 500 khz tbd % peak-to-peak noise e n p-p f = 0.1 hz to 10 hz tbd v p-p voltage noise density e n f = 1 khz 13 nv/hz f = 10 hz 40 nv/hz current noise density i n f = 1 khz tbd fa/hz
preliminary technical data ADA4700-1 rev. prb | page 5 of 10 v sy = 24 v electrical characteristics v sy = 24 v, v cm = v sy /2, t a = 25c, unless otherwise specified. table 2. parameter symbol test conditions/comments min typ max unit input characteristics offset voltage v os 0.2 2 mv ?40c < t a < +85c 2.5 mv offset voltage drift v os /t ?40c < t a < +85c 2.5 15 v/c input bias current i b 5 30 na ?40c < t a < +85c 50 na input offset current i os 2 25 na ?40c < t a < +85c 30 na input voltage range ivr ?40c < t a < +85c (v?) + 3 (v+) ? 3 v common-mode rejection ratio cmrr (v?) + 3 v < v cm < (v+) C 3 v 100 103 db ?40c < t a < +85c 100 db large signal voltage gain a vo ?21 v< v out < +21 v, rl=2k 103 105 db ?40c < t a < +85c 100 db input capacitance common-mode c incm tbd pf differential c indm tbd pf input resistance r in common mode and differential mode tbd m output characteristics output voltage high v oh r l = 10 k to gnd 22.2 22.5 v ?40c < t a < +85c 22.0 v r l = 2 k to gnd 22.0 22.4 v ?40c < t a < +85c 21.8 v output voltage low v ol r l = 10 k to gnd ?22.5 -22.2 v ?40c < t a < +85c -22.0 v r l = 2 k to gnd ?22.4 -22.0 v ?40c < t a < +85c -21.8 v capacitive load drive c l a v = +1 tbd nf a v = +10 tbd nf short circuit limit i sc sourcing and sinking tbd tbd ma closed-loop impedance z out f = 10 mhz, a v = +1 tbd power supply power supply rejection ratio psrr v s = 4.5 v to 55 v 110 130 db ?40c to +85c tbd db supply current per amplifier i sy v o = v s /2 1.65 2.1 ma ?40c < t a < +85c tbd ma dynamic performance slew rate sr v 0 = tbd v step, r l = 2 k, c l = 100 pf 20 v/s gain bandwidth product gbp v in = 5 mv p-p, a v = +100 2.5 mhz unity gain crossover ugc v in = 5 mv p-p, a v = +1 tbd mhz ?3 db bandwidth ?3 db v in = 5 mv p-p, a v = ?1 tbd mhz phase margin m v in = 5 mv p-p, r l = 1m, c l = 35 pf; a v =-1 65 degrees settling time to 0.1% t s v in = 20 v p-p, r l = 10 k, c l = 5 pf, a v = -1 tbd s settling time to 0.01% t s v in = 20 v p-p, r l = 10 k, c l = 5 pf, a v = -1 tbd s
ADA4700-1 preliminary technical data rev. prb | page 6 of 10 parameter symbol test conditions/comments min typ max unit noise performance total harmonic distortion + noise thd + n g= +1, v in = 10 v p-p at 1 khz; r l = 10k ? bandwidth = 80 khz tbd % bandwidth = 500 khz tbd % peak-to-peak noise e n p-p f = 0.1 hz to 10 hz tbd v p-p voltage noise density e n f = 1 khz 13 nv/hz f = 10 hz 40 nv/hz current noise density i n f = 1 khz tbd fa/hz
preliminary technical data ADA4700-1 rev. prb | page 7 of 10 v sy = 5 v electrical charateristics v sy = 5 v, v cm = v sy /2, t a = 25c, unless otherwise specified. table 3. parameter symbol test conditions/comments min typ max unit input characteristics offset voltage v os 0.2 2 mv ?40c < t a < +85c 2.5 mv offset voltage drift v os /t ?40c < t a < +85c 3 v/c input bias current i b 5 30 na ?40c < t a < +85c 50 na input offset current i os 2 25 na ?40c < t a < +85c 30 na input voltage range ivr ?40c < t a < +85c ?2 +2 v common-mode rejection ratio cmrr ?2 v v cm +2 v 86 89 db ?40c < t a < +85c 86 db large signal voltage gain a vo ?2 v< v out < +2 v, r l =2k 97 99 db ?40c < t a < +85c 95 db input capacitance common-mode c incm tbd pf differential c indm tbd pf input resistance r in common mode and differential mode tbd m output characteristics output voltage high v oh r l = 2 k to gnd 3.4 3.6 v ?40c < t a < +85c 3.2 v output voltage low v ol r l = 2 k to gnd ?3.6 -3.4 v ?40c < t a < +85c -3.2 v capacitive load drive c l a v = +1 tbd nf a v = +10 tbd nf short circuit limit i sc sourcing and sinking tbd 75 ma closed-loop impedance z out f = 10 mhz, a v = +1 tbd ? power supply power supply rejection ratio psrr v s = 4.5 v to 55 v 110 130 db ?40c to +85c 110 db supply current per amplifier i sy v o = v s /2 1.5 2 ma ?40c < t a < +85c 2.2 ma dynamic performance slew rate sr v 0 = tbd v step, r l = 2 k, c l = 100 pf tbd v/s gain bandwidth product gbp v in = 5 mv p-p, a v = +100 2.5 mhz unity gain crossover ugc v in = 5 mv p-p, a v = +1 tbd mhz ?3 db bandwidth ?3 db v in = 5 mv p-p, a v = ?1 tbd mhz phase margin m v in = 5 mv p-p, r l = 1m, c l = 35 pf; a v =-1 65 degrees settling time to 0.1% t s v in = 6 v p-p, r l = 10 k, c l = 5 pf, a v = -1 tbd s noise performance total harmonic distortion + noise thd + n g= +1, v in = 3v p-p at 1 khz; r l = 10k ? bandwidth = 80 khz tbd % bandwidth = 500 khz tbd % peak-to-peak noise e n p-p f = 0.1 hz to 10 hz tbd v p-p voltage noise density e n f = 1 khz 13 nv/hz current noise density i n f = 1 khz tbd fa/hz
ADA4700-1 preliminary technical data rev. prb | page 8 of 10 absolute maximum ratings table 4. parameter rating supply voltage 110 v input voltage v? v in v+ differential input voltage v? v in v+ storage temperature range ?65c to +150c operating temperature range ?40c to +85c junction temperature range ?65c to +150c lead temperature (soldering, 60 sec) 300c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. maximum power dissipation the maximum power that can be safely dissipated by a plastic encapsulated package is limited by the junction temperature. the maximum safe junction temperature for plastic encapsulated devices, as determined by the glass transition temperature of the plastic, is approximat ely 150c. exceeding this limit temporarily may cause a shift in the parametric performance due to a change in the stresses exerted on the die by the package. exceeding a junction temperature of 175c for an extended period can result in device failure. thermal resistance ja is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. table 5. thermal resistance package type ja jc unit 8-lead soic_n_ep (rd-8-2) tbd tbd ? c/w esd caution
preliminary technical data ADA4700-1 rev. prb | page 9 of 10 pin configuration and function description figure 2. pin configuration table 6. pin function descriptions pin no. mnemonic description 1, 5, 8 nc no connect. do not connect to this pin. 2 ?in inverting input. 3 +in noninverting input. 4 v? negative supply voltage. 6 out output. 7 v+ positive supply voltage. epad exposed pad. connect the exposed pad to v?. nc ?in +in v? nc v+ out nc 1 2 3 4 8 7 6 5 top view (not to scale) ADA4700-1 notes 1. nc = no connect. do not connect to this pin. 2. the exposed pad must be connected to v?. 11551-003
ADA4700-1 preliminary technical data rev. prb | page 10 of 10 outline dimensions figure 3. 8-lead standard small outline package with exposed pad [soic_n_ep] narrow body (rd-8-2) dimensions shown in millimeters ordering guide model 1 temperature range package description package option branding ADA4700-1ardz ?40c to +85c 8-lead standard small outline package with exposed pad [soic_n_ep] rd-8-2 ?? ADA4700-1ardz-r7 ?40c to +85c 8-lead standard small outline package with exposed pad [soic_n_ep] rd-8-2 ADA4700-1ardz-rl ?40c to +85c 8-lead standard small outline package with exposed pad [soic_n_ep] rd-8-2 1 z = rohs compliant part. compliant to jedec standards ms-012-a a 06-03-2011-b 1.27 0.40 1.75 1.35 2.41 0.356 0.457 4.00 3.90 3.80 6.20 6.00 5.80 5.00 4.90 4.80 0.10 max 0.05 nom 3.81 ref 0.25 0.17 8 0 0.50 0.25 45 coplanarity 0.10 1.04 ref 8 1 4 5 1.27 bsc s eating plane for proper connection of the exposed pad, refer to the pin configuration and function descriptions section of this data sheet. bottom view top view 0.51 0.31 1.65 1.25 3.098 ?2013 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. pr11551-0-6/13(prb)
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