il711/il712/il721 isoloop is a registered trademark of nve corporation. *u.s. patent numbers 5, 831,426; 6,300,617 and others. rev. w 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/high temperature dual digital isolators functional diagrams il711 il712 in 1 in 2 out 1 out 2 out 1 in 2 out 2 in 1 il721 in 1 out 2 in 2 out 1 features ?? +5 v/+3.3 v cmos / ttl compatible ?? high speed: 150 mbps typical (s-series) ?? high temperature: ? 40c to +125c (t-series) ?? 2500 v rms isolation (1 min.) ?? 300 ps typical pulse width distortion (s-series) ?? 100 ps typical pulse jitter ?? 4 ns typical propagation delay skew ?? 10 ns typical propagation delay ?? 30 kv/ s typical common mode transient immunity ?? low emc footprint ?? 2 ns channel-to-channel skew ?? 8-pin msop, soic, and pdip packages ?? ul1577 and iec 61010-2001 approved applications ?? profibus ?? devicenet ?? can ?? rs-485 and rs-422 ?? board-to-board communication ?? peripheral interfaces ?? logic level shifting description nve?s il700 family of high-speed digital isolators are cmos devices manufactured with nve?s patented* isoloop ? spintronic giant magnetoresistive (gmr) technology. the il711s and il712s are the world?s fastest two-channel isolators, with a 150 mbps typical data rate for both channels. the symmetric magnetic coupling barrier provides a typical propagation delay of only 10 ns and a pulse width distortion as low as 300 ps (0.3 ns), achieving the best specifications of any isolator. typical transient immunity of 30 kv/s is unsurpassed. the il711 has two transmit channels; the il712 and il721 have one transmit and one receive channel. the il712 and il721 operate full duplex, making them ideal for many fieldbus applications, including profibus, devicenet, and can. the il721 has channels reversed to better suit certain board layouts. the il711 and il712 are available in 8-pin msop, soic, and pdip packages. the il721 is available in an 8-pin soic package. standard and s-grade parts are specified over a temperature range of ? 40c to +100c; t-grade parts have a maximum operating temperature of +125c.
il711/il712/il721 2 absolute maximum ratings parameters symbol min. typ. max. units test conditions storage temperature t s ? 55 150 c ambient operating temperature (1) il711t/ il712t/il721t t a ? 55 125 135 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 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 il711/il712 and il711s/il712s il711t/il712t/il721t t a ? 40 ? 40 100 125 c c supply voltage v dd 1 , v dd 2 3.0 5.5 v 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 msop 3.01 mm soic 4.03 mm pdip 7.04 mm leakage current (5) 0.2 a 240 v rms , 60 hz barrier impedance (5) >10 14 ||3 ? || pf package characteristics parameters symbol min. typ. max. units test conditions capacitance (input?output) (5) c i ? o 2 pf f = 1 mhz thermal resistance msop jc 168 c/w soic jc 144 c/w pdip jc 54 c/w thermocouple at center underside of package package power dissipation p pd 150 mw f = 1 mhz, v dd = 5 v safety and approvals iec61010-1 tuv certificate numbers: n1502812, n1502812-101 classification as reinforced insulation model package pollution degree material group max. working voltage il711-1; il712-1 msop ii iii 150 v rms il711-2; il712-2 pdip ii iii 300 v rms il711-3; il712-3; il721-3 soic ii iii 150 v rms ul 1577 component recognition program file number: e207481 rated 2500v rms for 1 minute soldering profile per jedec j-std-020c, msl=2
il711/il712/il721 3 il711 pin connections 1 v dd1 supply voltage 2 in 1 data in, channel 1 3 in 2 data in, channel 2 4 gnd 1 ground return for v dd1 5 gnd 2 ground return for v dd2 6 out 2 data out, channel 2 7 out 1 data out, channel 1 8 v dd2 supply voltage 1 2 3 45 6 7 8 in 1 in 2 v dd1 gnd 1 out 2 out 1 v dd2 gnd 2 il711 il712 pin connections 1 v dd1 supply voltage 2 in 1 data in, channel 1 3 out 2 data out, channel 2 4 gnd 1 ground return for v dd1 5 gnd 2 ground return for v dd2 6 in 2 data in, channel 2 7 out 1 data out, channel 1 8 v dd2 supply voltage in 1 in 2 v dd1 gnd 1 out 2 out 1 v dd2 gnd 2 il712 il721 pin connections 1 v dd1 supply voltage 2 out 1 data out, channel 1 3 in 2 data in, channel 2 4 gnd 1 ground return for v dd1 5 gnd 2 ground return for v dd2 6 out 2 data out, channel 2 7 in 1 data in, channel 1 8 v dd2 supply voltage out 1 out 2 v dd1 gnd 1 in 2 in 1 v dd2 gnd 2 il721 timing diagram legend t plh propagation delay, low to high t phl propagation delay, high to low t pw minimum pulse width t r rise time t f fall time
il711/il712/il721 4 3.3 volt electrical specifications electrical specifications are t min to t max unless otherwise stated. parameters symbol min. typ. max. units test conditions dc specifications input quiescent supply current il711 8 10 a ? il712/il721 i dd1 1.5 2 ma output quiescent supply current il711 3.3 4 ma il712/il721 i dd2 1.5 2 ma logic input current i i ? 10 10 a v dd ? 0.1 v dd i o = ? 20 a, v i = v ih logic high output voltage v oh 0.8 x v dd 0.9 x v dd v i o = ? 4 ma, v i = v ih 0 0.1 i o = 20 a, v i = v il logic low output voltage v ol 0.5 0.8 v i o = 4 ma, v i = v il switching specifications maximum data rate il711/il712/il721 il711s/il712s il711t/il712t/il721t 100 130 100 110 140 110 mbps mbps mbps c l = 15 pf c l = 15 pf c l = 15 pf pulse width (7) pw 10 7.5 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 (2) il711/il712/il721 il711s/il712s il711t/il712t/il721t pwd 2 2 1 3 3 3 ns ns ns c l = 15 pf c l = 15 pf c l = 15 pf propagation delay skew (3) t psk 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 or logic low) (4) |cm h |,|cm l | 20 30 kv/ s v cm = 300 v channel-to-channel skew t csk 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 il711/il712/il721 5 5 volt electrical specifications electrical specifications are t min to t max unless otherwise stated. parameters symbol min. typ. max. units test conditions dc specifications input quiescent supply current il711 10 15 a ? il712/il721 i dd1 2.5 3 ma output quiescent supply current il711 5 6 ma il712/il721 i dd2 2.5 3 ma logic input current i i ? 10 10 a v dd ? 0.1 v dd i o = ? 20 a, v i = v ih logic high output voltage v oh 0.8 x v dd 0.9 x v dd v i o = ? 4 ma, v i = v ih 0 0.1 i o = 20 a, v i = v il logic low output voltage v ol 0.5 0.8 v i o = 4 ma, v i = v il switching specifications maximum data rate il711/il712/il721 il711s/il712s il711t/il712t/il721t 100 130 100 110 150 110 mbps mbps mbps c l = 15 pf c l = 15 pf c l = 15 pf pulse width (7) pw 10 7.5 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 (2) il711/il712/il721 il711s/il712s il711t/il712t/il721t pwd 2 2 0.3 3 3 3 ns ns ns c l = 15 pf c l = 15 pf c l = 15 pf pulse jitter (10) t j 100 ps c l = 15 pf propagation delay skew (3) t psk 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 or logic low) (4) |cm h |,|cm l | 20 30 kv/ s v cm = 300 v channel to channel skew t csk 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 sustained 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?4 shorted and pins 5?8 shorted. 6. dynamic power consumption is calculated per channel a nd is supplied by the channel?s input side power supply. 7. minimum pulse width is th e minimum value at which specified pwd is guaranteed. 8. the relevant test and measurement methods are given in the electromagn etic 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-pi n? (see diagram on p. 6). 10. 64k-bit pseudo-random binary signal (prbs) nrz bit pattern with no more than five consecutive 1s or 0s; 800 ps transition t ime.
il711/il712/il721 6 80 ns application information electrostatic discharge 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 inapprop riate handling or storage could range from performance degradation 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 complia nt 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, commercial & light industrial methods en55022, en55014 en50082-2: industrial environment methods en61000-4-2 (esd), en61000-4-3 (electromagnetic field immunity), en61000-4-4 (electrical transient immunity), en61000-4-6 (rfi immunity), en61000-4-8 (power frequency magnetic field immunity), en61000-4-9 (pulsed magnetic field), en61000-4-10 (damped osc illatory magnetic field) env50204 radiated field from digital telephones (immunity test) immunity to external magnetic fiel ds 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, wh ich have power consumption heavily dependent on mark-to-space ratio. power supply decoupling both power supplies to these devices 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, inpu t 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. unless the circuit connected to the isolator performs its own power- on reset (por), the designer should consider including an initialization signal in the start-up circuit. initialization consists of toggling the input either high then low, or low then high. in can applications, the il712 or il721 should be used with can transceivers with dominant timeout functions for seamless por. most can transceiver manufacturers offer dominant timeout options. examples include nxp?s tja 1050 and tja 1040 transceivers. 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 width distortion and propagation delay skew. propagation delay is the time taken for the signal to travel through the device. this is usually diffe rent when sending a low-to-high than when sending a high-to-low sign al. 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 near ly 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 an il700 isolator is only 3 ns, which is ten times better than any optocoupler. il700 isolators have a maximum propagation delay skew of 6 ns, which is five times better than any optocoupler.
il711/il712/il721 7 illustrative applications isolated can il712/il721 txd rxd canh canl tx0 rx0 tja1050 adr 0...7, cs xtal1 xtal2 sja1000 7 6 2 1 4 3 in today?s can networks, node-to-node isolation is increasingly r ecommended by designers to reduce emi susceptibility, especial ly in high- speed applications and in hybrid and electrical vehicle networks, where the 12 v battery has been replaced with one of several hundred volts. operator and equipment safety becomes critical when a high voltage source, such as the battery, needs to be connected to diagno sis systems during routine maintenance procedures. in the application shown above, the microcontroller is isolated from the can transceiver by an il712 or il721, allowing higher speed and more reliable bus operation by eliminating ground loops and reducing susceptibility to noise a nd emi events. the best-in-class 10 ns typical il712/il721 propaga tion delay minimizes can loop delay and maximizes data rate over any given bus length. the simple circuit works with any can transceiver with a txd dominant timeout, which includes all of the current-generation tra nsceivers. isolated profibus / rs-485 isolation boundary il710 il711 isl8485 5 6 7 8 4 3 2 1 1 2 3 4 8 7 6 5 1 5 6 7 2 8 3 4 nve offers a unique line of profibus / rs-485 tr ansceivers, but il700 high-speed digital si gnal isolators can also be used as p art of multi-chip designs with non-isolated profibus transceivers. rs-485 truth table d de a b r 1 0 z z x 0 0 z z x 1 1 1 0 1 0 1 0 1 0
il711/il712/il721 8 package drawings, dimensions and specifications 8-pin msop 0.114 (2.90) 0.114 (2.90) 0.016 (0.40) 0.005 (0.13) 0.009 (0.23) 0.027 (0.70) 0.010 (0.25) 0.018 (0.45) 0.002 (0.05) 0.043 (1.10) 0.032 (0.80) 0.006 (0.15) 0.016 (0.40) 0.022 (0.55) 0.189 (4.80) 0.197 (5.00) 0.122 (3.10) 0.122 (3.10) 6? 0? pin spacing is a basic dimension; tolerances do not accumulate note: 8-pin soic package 0.013 (0.33) 0.020 (0.50) 0.189 (4.8) 0.197 (5.0) 0.150 (3.8) 0.157 (4.0) dimensions in inches (mm) 3 2 1 0.228 (5.8) 0.244 (6.2) 0.008 (0.19) 0.010 (0.25) 0.010 (0.25) 0.020 (0.50) x45o 0o 8o 0.016 (0.40) 0.050 (1.27) 0.040 (1.0) 0.060 (1.5) 0.054 (1.37) 0.069 (1.75) 0.004 (0.10) 0.010 (0.25) pin spacing is a basic dimension; tolerances do not accumulate note: 8-pin pdip 0.36 (9.0) 0.40 (10.2) pin spacing is a basic dimension; tolerances do not accumulate note: 0.24 (6.1) 0.26 (6.6) 0.29 (6.4) 0.31 (7.9) 0.30 (7.6) 0.37 (9.4) 0.008 (0.2) 0.015 (0.4) 0.030 (0.76) 0.045 (1.14) 0.015 (0.38) 0.023 (0.58) 0.045 (1.14) 0.065 (1.65) 0.09 (2.3) 0.11 (2.8) 0.015 (0.38) 0.035 (0.89) 0.12 (3.05) 0.15 (3.81)
il711/il712/il721 9 ordering information and valid part numbers il 711 t - 3 e tr13 bulk packaging blank = tube tr7 = 7'' tape and reel tr13 = 13'' tape and reel package blank = 80/20 tin/lead plating e = rohs compliant package type -1 = msop -2 = pdip -3 = 0.15'' 8-pin soic grade blank = standard t = high temperature s = high speed base part number 711 = 2 drive channels 712 = 1 drive channel 1 receive channel 721 = 1 drive channel 1 receive channel (reverse pinout) product family il = isolators valid part numbers il711-1 il711-1e il711s-1 il711s-1e il711t-1 il711t-1e il711-2 il711-2e il711t-2 IL711T-2E il711-3 il711s-3 il711t-3 il711-3e il711s-3e il711t-3e all msop and soic parts are available on tape and reel. il712-1 il712-1e il712s-1 il712s-1e il712t-1 il712t-1e il712-2 il712-2e il712t-2 il712t-2e il712-3 il712s-3 il712t-3 il712-3e il712s-3e il712t-3e il721-3 il721t-3 il721-3e il721t-3e rohs compliant
il711/il712/il721 10 isb-ds-001-il711/12-w july 2010 changes ?? changed msop pin spacing (p. 8). ?? clarified s-series and t-se ries speed specifications. isb-ds-001-il711/12-v changes ?? added il721 configuration. isb-ds-001-il711/12-u changes ?? added can application diagram (p. 7). isb-ds-001-il711/12-t changes ?? added typical jitter specification at 5v. isb-ds-001-il711/12-s changes ?? added emc details. isb-ds-001-il711/12-r changes ?? iec 61010 approval for msop versions. isb-ds-001-il711/12-q changes ?? added magnetic field immunity and electromagnetic compatibility specifications. isb-ds-001-il711/12-p changes ?? correct soic package drawing. isb-ds-001-il711/12-o changes ?? note on all package drawings that pi n-spacing tolerances are non-accumulating; change msop pin-spacing dimens ions and tolerance accordingly. isb-ds-001-il711/12-n changes ?? changed lower limit of length on pdip package drawing. ?? tightened pin-spacing tolerance on msop package drawing. isb-ds-001-il711/12-m changes ?? changed ordering information to reflect that devices are now fully rohs compliant with no exemptions. isb-ds-001-il711/12-l changes ?? eliminated soldering profile chart isb-ds-001-il711/12-k changes ?? added rs-485 application circuit isb-ds-001-il711/12-j changes ?? msop packages, s- and t-grades added ?? order information updated isb-ds-001-il711/12-i changes added msop specifications updated iec and ul approval numbers
il711/il712/il721 11 about nve an iso 9001 certified company nve corporation manufactures innovative products based on uni que spintronic giant magnetoresistive (gmr) technology. products include magnetic field sensors, magnetic field gradient sensors (gradiometers), digital magnetic field sensors, digital signal isolators, and isolated bus transceivers. nve pioneered spintronics and in 1994 introduced the world?s first products using gmr material, a line of ultra-precise magneti c sensors for position, magnetic media, gear speed and current sensing. 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 corpor ation is believed to be accurate. however, no responsibility is assumed by nve corporation for its use, nor for any infringement of patents, nor rights or licenses granted to third parties, which may result from its use. no license is granted by implication, or otherwise, under any patent or patent rights of nve corporation. nve corporation does not authorize, nor warrant , any nve corporation product for use in life support devices or systems or other critical applications, without the express written appr oval of the president of nve corporation. specifications shown are subject to change without notice. isb-ds-001-il711/12-w july 2010
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