il260/il261/il262 isoloop is a registered trademark of nve corporation. *u.s. patent number 5,831, 426; 6,300,617 and others. rev. k nve corporation 11409 valley view road, eden prairie, mn 55344-3617 phone: (952) 829-9217 fax: (952) 829-9189 www.isoloop.com ?nve corporation high speed five-channel digital isolators functional diagrams in 1 in 2 in 3 in 4 out 5 in 5 out 1 out 2 out 3 out 4 out 1 out 2 out 3 out 4 out 5 in 1 in 2 in 3 in 4 in 5 il261 il260 in 1 in 2 in 3 out 4 out 5 in 5 out 1 out 2 out 3 in 4 il262 features ? +5 v / +3.3 v cmos/ttl compatible ? high speed: 110 mbps ? extended temperature range ( ? 40c to +85c) ? 2500 v rms isolation (1 min.) ? 2 ns typical pulse width distortion ? 100 ps typical pulse jitter ? 4 ns typical propagation delay skew ? 10 ns typical propagation delay ? 30 kv/s typical common mode rejection ? low emc footprint ? 2 ns channel-to-channel skew ? 0.3" and 0.15" 16-pin soic packages ? ul1577 and iec 61010-2001 approved applications ? adcs and dacs ? multiplexed data transmission ? data interfaces ? board-to-board communication ? digital noise reduction ? operator interface ? ground loop elimination ? peripheral interfaces ? parallel bus ? logic level shifting ? plasma displays description n ve?s il260-series five-channel hi gh-speed digital isolators are cmos devices manufactured wi th nve?s patented* isoloop ? spintronic giant magnetoresistive (gmr) technology. all transmit and receive channels operate at 110 m bps over the full temperature and supply voltage range. the symmetric magnetic coupling barrier provides a typical propagation delay of only 10 ns and a pulse width distortion of 2 ns , achieving the best specifications of any isolator. the unique fifth channel can be is used to distribute isolated clocks or handshake signals to multiple delta-sigma a/d converters. high channel densit y makes these devices ideal for isolating adcs and dacs, parallel buses and peripheral interfaces. typical transient immunity of 30 kv/s is unsurpassed. performance is specified over the temperature range of ? 40c to +85c without derating. il260-series isolators are available in 0.3" and 0.15" 16-pin soic packages. in the 0.15" packages, th e five-channel devices provide the highest channel density available.
il260/il261/il262 2 absolute maximum ratings parameters symbol min. typ. max. units test conditions storage temperature t s ? 55 150 c ambient operating temperature ( 1 ) t a ? 55 125 c supply voltage v dd 1 ,v dd 2 ? 0.5 7 v input voltage v i ? 0.5 v dd + 0.5 v output voltage v o ? 0.5 v dd + 0.5 v output current drive i o ? 10 10 ma lead solder temperature 260 c 10 sec. esd 2 kv hbm recommended operating conditions parameters symbol min. typ. max. units test conditions ambient operating temperature t a ? 40 85 c supply voltage v dd 1 ,v dd 2 3.0 5.5 v 3.3/5.0 v operation logic high input voltage v ih 2.4 v dd v logic low input voltage v il 0 0.8 v input signal rise and fall times t ir , t if 1 s insulation specifications parameters symbol min. typ. max. units test conditions creepage distance (external) 0.15'' soic 4.03 mm 0.3'' soic 8.08 mm leakage current ( 5 ) 0.2 a rms 240 v rms barrier impedance ( 5 ) >10 14 ||7 ? || pf capacitance (input?output) ( 5 ) c i ? o 5 pf f = 1 mhz safety and approvals iec61010-2001 tuv certificate numbers: n1502812, n1502812-101 classification as reinforced insulation model package pollution degree material group max. working voltage il260, il261, il262 0.3'' 16-pin soic ii iii 300 v rms il260-3, il261-3, il262-3 0.15'' 16-pin soic ii iii 150 v rms ul 1577 component recognition program file number: e207481 rated 2500 v rms for 1 minute (soic, pdip) soldering profile per jedec j-std-020c, msl=2
il260/il261/il262 3 il260 pin connections 1 in 1 input 1 2 gnd 1 ground* 3 in 2 input 2 4 in 3 input 3 5 in 4 input 4 6 v dd1 supply voltage 1 7 in 5 input 5 8 gnd 1 ground* 9 gnd 2 ground* 10 out 5 output 5 11 out 4 output 4 12 out 3 output 3 13 out 2 output 2 14 out 1 output 1 15 gnd 2 ground* 16 v dd2 supply voltage 2 in 1 v dd2 gnd 1 gnd 2 in 2 out 1 in 3 out 2 in 4 out 3 v dd1 in 5 out 4 out 5 gnd 1 gnd 2 il260 il261 pin connections 1 v dd1 supply voltage 1 2 gnd 1 ground* 3 in 1 input 1 4 in 2 input 2 5 in 3 input 3 6 in 4 input 4 7 out 5 output 5 8 gnd 1 ground* 9 gnd 2 ground* 10 in 5 input 5 11 out 4 output 4 12 out 3 output 3 13 out 2 output 2 14 out 1 output 1 15 gnd 2 ground* 16 v dd2 supply voltage 2 v dd1 v dd2 gnd 1 gnd 2 in 1 out 1 in 2 out 2 in 3 out 3 in 4 out 5 out 4 in 5 gnd 1 gnd 2 il261 il262 pin connections 1 v dd1 supply voltage 1 2 gnd 1 ground* 3 in 1 input 1 4 in 2 input 2 5 in 3 input 3 6 out 4 output 4 7 out 5 output 5 8 gnd 1 ground* 9 gnd 2 ground* 10 in 5 input 5 11 in 4 input 4 12 out 3 output 3 13 out 2 output 2 14 out 1 output 1 15 gnd 2 ground* 16 v dd2 supply voltage 2 v dd1 v dd2 gnd 1 gnd 2 in 1 out 1 in 2 out 2 in 3 out 3 out 4 out 5 in 4 in 5 gnd 1 gnd 2 il262 *note: pins 2 and 8 are internally connected, as are pins 9 and 15.
il260/il261/il262 4 3.3 volt electrical specifications (t min to t max ) parameters symbol min. typ. max. units test conditions input quiescent current il260 il261 il262 i dd1 300 1.5 3 400 2 4 a ma ma output quiescent current il260 il261 il262 i dd2 6.5 5 3.5 10 8 6 ma ma ma logic input current i i ? 10 10 a logic high output voltage v oh v dd ? 0.1 v dd v i o = ? 20 a, v i =v ih 0.8 x v dd 0.9 x v dd i o = ? 4 ma, v i =v ih logic low output voltage v ol 0 0.1 v i o = 20 a, v i =v il 0.5 0.8 i o = 4 ma, v i =v il switching specifications maximum data rate 100 110 mbps c l = 15 pf minimum pulse width ( 7 ) pw 10 ns 50% points, v o propagation delay input to output (high to low) t phl 12 18 ns c l = 15 pf propagation delay input to output (low to high) t plh 12 18 ns c l = 15 pf pulse width distortion |t phl ? t plh | ( 2 ) pwd 2 3 ns c l = 15 pf propagation delay skew ( 3 ) t ps k 4 6 ns c l = 15 pf output rise time (10%?90%) t r 2 4 ns c l = 15 pf output fall time (10%?90%) t f 2 4 ns c l = 15 pf common mode transient immunity (output logic high to logic low) (4) |cm h |,|cm l | 20 30 kv/ s v cn = 300 v channel-to-channel skew 2 3 ns c l = 15 pf dynamic power consumption ( 6 ) 140 240 a/mhz per channel magnetic field immunity (8) (v dd2 = 3v, 3v il260/il261/il262 5 5 volt electrical specifications (t min to t max ) parameters symbol min. typ. max. units test conditions input quiescent current il260 il261 il262 i dd1 350 2.5 5 500 3 6 a ma ma output quiescent current il260 il261 il262 i dd2 10 7.5 5 15 12 9 ma ma ma logic input current i i ? 10 10 a logic high output voltage v oh v dd ? 0.1 v dd v i o = ? 20 a, v i = v ih 0.8 x v dd 0.9 x v dd i o = ? 4 ma, v i = v ih logic low output voltage v ol 0 0.1 v i o = 20 a, v i = v il 0.5 0.8 i o = 4 ma, v i = v il switching specifications maximum data rate 100 110 mbps c l = 15 pf minimum pulse width ( 7 ) pw 10 ns 50% points, v o propagation delay input to output (high to low) t phl 10 15 ns c l = 15 pf propagation delay input to output (low to high) t plh 10 15 ns c l = 15 pf pulse width distortion |t phl ? t plh | ( 2 ) pwd 2 3 ns c l = 15 pf pulse jitter ( 10 ) t j 100 ps c l = 15 pf propagation delay skew ( 3 ) t ps k 4 6 ns c l = 15 pf output rise time (10%?90%) t r 1 3 ns c l = 15 pf output fall time (10%?90%) t f 1 3 ns c l = 15 pf common mode transient immunity (output logic high to logic low) (4) |cm h |,|cm l | 20 30 kv/ s v cn = 300 v channel-to-channel skew 2 3 ns c l = 15 pf dynamic power consumption ( 6 ) 200 340 a/mhz per channel magnetic field immunity (8) (v dd2 = 5v, 3v 0.8 v dd 2 . cm l is the maximum common mode input voltage that can be sustaine d while maintaining v o < 0.8 v. the common mode voltage slew rates apply to both rising and falling common mode voltage edges. 5. device is considered a two terminal devi ce: pins 1?8 shorted and pins 9?16 shorted. 6. dynamic power consumption numbers are calc ulated per channel and are supplied by th e channel?s input side power supply. 7. minimum pulse width is the minimum value at which spec ified pwd is guaranteed. 8. the relevant test and measurement me thods are given in the electromagne tic compatibility section on p. 6. 9. external magnetic field immunity is improved by this factor if the field direction is ?end-to-end? rather than to ?pin-to-pin? (see diagram on p. 6). 10. 66,535-bit pseudo-random binary signal (prbs) nrz bit pattern with no more than five consecutive 1s or 0s; 800 ps transitio n time.
il260/il261/il262 6 80 ns application information electrostatic disch arge sensitivity this product has been tested for electrostatic sensitivity to the limits stated in the specifications. however, nve recommends that all integrated circuits be handled with appropriate care to avoid damage. damage caused by inappr opriate handling or storage could range from performance degrad ation to complete failure. electromagnetic compatibility isoloop isolators have the lowest emc footprint of any isolation technology. isoloop isolators? wheatstone bridge configuration and differential magnetic field signaling ensure excellent emc performance against all relevant standards. these isolators are fully compliant with generic emc standards en50081, en50082-1 and the umbrella line-voltage standard for information technology equipment (ite) en61000. nve has completed compliance tests in the categories below: en50081-1 residential, commercia l & light industrial methods en55022, en55014 en50082-2: industrial environment methods en61000-4-2 (esd), en61000-4-3 (electromagnetic field immunity), en61000-4-4 (ele ctrical transien t immunity), en61000-4-6 (rfi immunity), en61000-4-8 (power frequency magnetic field immunity), en61000-4-9 (pulsed magnetic field), en61000-4-10 (damped oscillatory magnetic field) env50204 radiated field from digita l telephones (immunity test) immunity to external magnetic fields is even higher if the field direction is ?end-to-end? rather than to ?pin-to-pin? as shown in the diagram below: cross-axis field direction dynamic power consumption isoloop isolators achieve their low power consumption from the way they transmit data across the isolation barrier. by detecting the edge transitions of the input logic signal and converting these to narrow current pulses, a magnetic field is created around the gmr wheatstone bridge. depending on the direction of the magnetic field, the bridge causes the output comparator to switch following the input logic signal. since the current pulses are narrow, about 2.5 ns, the power consumption is independent of mark-to-space ratio and solely dependent on frequency. this has obvious advantages over optocouplers, which have power consumption heavily dependent on mark-to-space ratio. power supply decoupling both power supplies to these devi ces should be decoupled with low esr 47 nf ceramic capacitors. ground planes for both gnd 1 and gnd 2 are highly recommended for data rates above 10 mbps. capacitors must be located as close as possible to the v dd pins. signal status on start-up and shut down to minimize power dissipation, i nput signals are differentiated and then latched on the output side of the isolation barrier to reconstruct the signal. this could result in an ambiguous output state depending on power up, shutdown and power loss sequencing. therefore, the designer should cons ider including an initialization signal in the start-up circuit. ini tialization consists of toggling the input either high then low, or low then high. data transmission rates the reliability of a transmission system is directly related to the accuracy and quality of the transmitted digital information. for a digital system, those parameters which determine the limits of the data transmission are pulse widt h distortion and propagation delay skew. propagation delay is the time taken for the signal to travel through the device. this is usually different when sending a low-to-high than when sending a high-to-low signal. this difference, or error, is called pulse width distortion (pwd) and is usually in nanoseconds. it may also be expressed as a percentage: pwd% = maximum pulse width distortion (ns) x 100% signal pulse width (ns) for example, with data rates of 12.5 mbps: pwd% = 3 ns x 100% = 3.75% this figure is almost three times better than any available optocoupler with the same temperature range, and two times better than any optocoupler regardless of published temperature range. isoloop isolators exceed the 10% maximum pwd recommended by profibus, and will run to nearly 35 mb within the 10% limit. propagation delay skew is the signal propagation difference between two or more channels. this becomes significant in clocked systems because it is undesirable for the clock pulse to arrive before the data has settled. short propagation delay skew is therefore especially critical in high data rate parallel systems for establishing and maintaining accuracy and repeatability. worst- case channel-to-channel skew in il260-series isolators is only 3 ns, which is ten times better than any optocoupler. il260-series isolators have a maximum propagatio n delay skew of 6 ns, which is five times better than any optocoupler.
il260/il261/il262 7 application diagram?multi-cha nnel delta-sigma a/d converter in a typical single-channel delta-sigma adc, the system clock is located on the isolated side of the system and only four chann els of isolation are required. with multiple adcs configured in a channel-to-channel isolation configuration, however, clock jitter and edge placeme nt accuracy of the system clock must be matche d between adcs. the best solution is to use a si ngle clock on the system side and distribute the clock to each adc. the five-channel il261 is ideal, with the fifth channel used to distribute a single, isolated clock to multiple adcs as sh own below: bridge + serial data out serial data in data clock chip select iso sd out iso sd in iso data clock iso cs bridge - osc 2 il261 cs5532 clock generator bridge bias delta sigma a/d isolation boundary bridge + serial data out serial data in data clock chip select iso sd out iso sd in iso data clock iso cs bridge - osc 2 il261 cs5532 bridge bias delta sigma a/d channel 1 channel n
il260/il261/il262 8 package drawings, dimensions and specifications 0.15" 16-pin soic package 0.054 (1.4) 0.072 (1.8) 0.040 (1.0) 0.060 (1.5) 0.016 (0.4) 0.050 (1.3) 0.386 (9.8) 0.394 (10.0) pin 1 identified by either an indent or a marked dot nom 0.228 (5.8) 0.244 (6.2) 0.152 (3.86) 0.157 (3.99) dimensions in inches (mm) 0.007 (0.2) 0.013 (0.3) 0.004 (0.1) 0.012 (0.3) 0.040 (1.02) 0.050 (1.27) 0.013 (0.3) 0.020 (0.5) pin spacing is a basic dimension; tolerances do not accumulate note: 0.3" 16-pin soic package nom pin 1 identified by either an indent or a marked dot 0.287 (7.29) 0.300 (7.62) dimensions in inches (mm) 0.08 (2.0) 0.10 (2.5) 0.092 (2.34) 0.105 (2.67) 0.397 (10.1) 0.413 (10.5) 0.013 (0.3) 0.020 (0.5) 0.394 (10.00) 0.419 (10.64) 0.040 (1.0) 0.060 (1.5) 0.004 (0.1) 0.012 (0.3) 0.007 (0.2) 0.013 (0.3) 0.016 (0.4) 0.050 (1.3) pin spacing is a basic dimension; tolerances do not accumulate note:
il260/il261/il262 9 ordering information and valid part numbers il 260 - 3 e tr13 bulk package blank = tube tr7 = 7'' tape and reel tr13 = 13'' tape and reel package blank = 80/20 tin/lead plating e = rohs compliant package type blank = 0.3" 16-pin soic -3 = 0.15'' 16-pin soic base part number 260 = 5 drive channels 261 = 4 drive channels, 1 receive channel 262 = 3 drive channels, 2 receive channel product family il = isolators valid part numbers il260 il260e il260-3 il260-3e il261 IL261E il261-3 il261-3e il262 il262e il262-3 il262-3e all il260-series part types are available on tape and reel. rohs compliant
il260/il261/il262 10 revision history isb-ds-001-il260/1/2-k december 2011 change ? added clarification of internal ground connections. isb-ds-001-il260/1/2-j change ? relaxed vdd1 quiescent current specification to 500a. isb-ds-001-il260/1/2-i change ? added typical jitter specification at 5v. isb-ds-001-il260/1/2-h change ? added emc details. isb-ds-001-il260/1/2-g change ? added magnetic field immunity and electromagnetic compatibility specifications. isb-ds-001-il260/1/2-f change ? added il262 configuration ? added note on package drawings that pin-spacing tolerances are non- accumulating. ? changed ordering information to reflect that devices are fully rohs compliant with no exemptions. isb-ds-001-il260/1-e change ? eliminated soldering profile chart isb-ds-001-il260/1-d change ? revised application drawing ? revised package drawings ? misc. syntax changes isb-ds-001-il260/1-c change page 2: ul file number and tuv certificate numbers added page 9: soldering profile added.
il260/il261/il262 11 about nve an iso 9001 certified company nve corporation is a high technology components manufacturer having the unique capability to combine spintronic giant magnetore sistive (gmr) materials with integrated circuits to make high performance electronic components. products include magnetic field sensor s, magnetic field gradient sensors (gradiometer), dig ital magnetic field sensors, digital signal isolators and isolated bus transceivers. nve is a leader in gmr research and in 1994 introduced the wo rld?s first products using gmr ma terial, a line of gmr magnetic fi eld sensors that can be used for position, magnetic me dia, wheel speed and current sensing. nve is located in eden prairie, minneso ta, a suburb of minneapolis. please visit our web site at www.nve.com or call (952) 829-9217 for information on products, sales or distribution. nve corporation 11409 valley view road eden prairie, mn 55344-3617 usa telephone: (952) 829-9217 fax: (952) 829-9189 internet: www.nve.com e-mail: isoinfo@nve.com the information provided by nve corporation is believed to be accurate . however, no respons ibility is assumed by nve corporatio n for its use, nor for any infringement of pate nts, nor rights or licenses granted to third parties, which may re sult from its use. no license is granted by implication, or otherwis e, under any patent or patent right s of nve corporation. nve corpor ation does not authorize, nor warran t, any nve corporation product for use in life support de vices or systems or other critical ap plications without the express written appro val of the president of nve corporation. specifications shown are subjec t to change without notice. isb-ds-001-il260/1/2-k june 2011
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