ISOLOOP® IL715/6/7 NVE CORPORATION Four Channel Digital Isolators Features Functional Diagram IL715 1IN 3IN Galvanic Isolation 2IN 1OUT 4IN 2OUT 3OUT · +5 and 3.3V CMOS Compatible · 2500 VRMS Isolation (1 min) · 2 ns Typical Pulse Width Distortion · 10 ns Typical Propagation Delay · 30 kV/µs Typical Transient Immunity · 100 MBd Data Rate · 16 Pin SOIC Package · UL1577 Approved (File # E207481) · IEC 61010-1 Approved (Report # 607057) 4OUT Applications IL716 1IN 3OUT Galvanic Isolation 2IN 1OUT 2OUT 3IN Description 4IN 4OUT IL717 3IN 1OUT Galvanic Isolation 1IN 2IN · Isolated Data Transmission · Isolated ADCs and DACs · Isolated RS485 and RS422 · Parallel Bus Isolation · Computer Peripheral Interface Isolation · Logic Level Shifting 4OUT 2OUT 3OUT 4IN Isoloop® is a registered trademark of NVE, Inc. The IL715, IL716 and IL717 series of 4–channel digital isolators provide the designer with the most compact isolated 5V logic devices yet available. These isolators are packaged in three options: IL715 with four unidirectional channels, IL716 with two channels in one direction and two channels in the opposite direction, and the IL717 with three channels in one direction and one channel in the other direction. All these devices are fabricated with patented* IsoLoop® technology giving them excellent transient immunity specifications. The symmetric magnetic coupling barrier gives these isolators a propagation delay of only 10 ns and a pulse width distortion of 2 ns. Devices are 100% high voltage tested to guarantee barrier integrity. The IL715, IL716 and IL717 have a 100 MBaud data rate which is independent of direction. They are available in 16–pin SOIC packages and are specified over the temperature range –40ºC to +100ºC. * US Patent number 5,831,426 and others. NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Absolute Maximum Ratings Parameters Storage Temperature Ambient Operating Temperature(1) Supply Voltage Input Voltage Output Voltage Output Current Lead Solder Temperature (10s) ESD Symbol Min. Max. TS -55 175 o o C TA -55 125 VDD1,VDD2 -0.5 7 Volts VI -0.5 VDD1+0.5 Volts VO -0.5 VDD2+0.5 Volts 10 mAmps IO C 260 o Max. Units Test Conditions 2500 VRMS 60Hz 8.077 (wide body) 4.026 (narrow body) mm C 2kV Human Body Model Insulation Specifications Parameter Symbol Min Rated Voltage, 1 minute Creepage Distance (External) Leakage Current Capacitance (Input-Output)(5) Typ. CI-O Recommended Operating Conditions Parameters Ambient Operating Temperature Supply Voltage Logic High Input Voltage Logic Low Input Voltage Input Signal Rise and Fall Times Units 0.2 µAmps 240 VRMS 4.0 pF f= 1MHz Symbol Min. Max. TA -40 100 VDD1,VDD2 3.0 5.5 Volts VIH 2.4 VDD Volts VIL 0 0.8 Volts 1 µsec tIR,tIF Units o C 2 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Electrical Specifications Electrical Specifications are Tmin to Tmax . Parameter Symbol DC Specifications Input Quiescent Supply Current IL715 IL716 IL717 Min 3.3V 5V Typ. Max. Units 3.3V 5V 3.3V 5V IDD1 IDD1 IDD1 17 2.4 1.5 25 4 2.2 27 3.3 1.7 40 5 2.5 µA mA mA IDD2 IDD2 IDD2 4.8 2.4 4.2 8 4 7 7 3.3 5.3 10 5 8 mA mA mA Test Conditions Output Quiescent Supply Current IL715 IL716 IL717 Logic Input Current II -10 Logic High Output Voltage VOH VDD-0.1 0.8*VDD Logic Low Output Voltage VOL Switching Specifications at 25oC Clock Frequency Data Rate Minimum Pulse Width Propagation Delay Input to Output (High to Low) Propagation Delay Input to Output ( Low to High) Pulse Width Distortion(2) | tPHL- tPLH | (3) Propagation Delay Skew Output Rise Time (10-90%) Output Fall Time (10-90%) Common Mode Transient Immunity (Output Logic High or Logic Low)(4) Channel to Channel Skew 10 V IO =-20 µA, VI =VIH I = -4 mA, V =V V IO = 20 µA, VI =VIL I = 4 mA, V =V O 0 0.5 0.1 0.8 fmax PW µA 10 VDD VDD-0.5 O I I 50 50 MHz CL = 15 pF 100 100 MBd CL = 15 pF ns 50% Points, VO 10 tPHL 12 10 18 15 ns CL = 15 pF tPLH 12 10 18 15 ns CL = 15 pF PWD 2 2 3 3 ns CL = 15 pF tPSK 4 4 6 6 ns CL = 15 pF tR 2 1 5 3 ns CL = 15 pF tF 2 1 5 3 ns CL = 15 pF 30 30 kV/µs Vcm =300V 2 2 ns CL = 15 pF IH IL |CMH| 20 20 |CML| tCSK 3 3 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 inappropriate handling or storage could range from performance degradation to complete failure. 3 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Notes: 1. Absolute Maximum ambient operating temperature means the device will not be damaged if operated under these conditions. It does not guarantee performance. 2. PWD is defined as | tPHL– tPLH |. %PWD is equal to the PWD divided by the pulse width. 3. tPSK is equal to the magnitude of the worst case difference in tPHL and/or tPLH that will be seen between units at 25OC. 4. CMH is the maximum common mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDD. CML is the maximum common mode input voltage that can be sustained while maintaining VO < 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 device: pins 1–8 shorted and pins 9–16 shorted. 4 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Application Notes: Data Transmission Rates Power Consumption The IsoLoop family of devices achieves its low power consumption from the manner by which it transmits data across its isolation barrier. By detecting the edge transitions of the input logic signal and converting this to a narrow current pulse which drives the isolation barrier, the isolator then latches the input logic state in the output latch. Since the current pulses are narrow, about 2.5 ns wide, the power consumption is independent of mark-to-space ratio and solely dependent on frequency. This has obvious advantages over optocouplers whose power consumption is heavily dependent on its on state and frequency. Power Supply Decoupling Both power supplies to these devices should be decoupled with good quality 47 nF ceramic capacitors. For data rates in excess of 10MBd, use of ground planes for both GND1 and GND2 is highly recommended. Capacitors should be located as close as possible to the device. Signal Status on Start-up and Shut Down To minimize power dissipation, the input signals to the IL715, IL716 and IL717 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 consider the inclusion of an initialization signal in his start-up circuit. 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 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 ns. It may also be expressed as a percentage: PWD% = Maximum Pulse Width Distortion (ns) Signal Pulse Width (ns) x 100% e.g. for the IL717 @ 12.5 Mb PWD% = 3 ns 80 ns x 100% = 3.75% This figure is almost 3x better than for any available optocoupler with the same temperature range, and 2x better than any optocoupler regardless of published temperature range. The IsoLoop range of isolators including the IL717 surpasses the 10% maximum PWD recommended by PROFIBUS, and will run at almost 35 Mb before reaching the 10% limit. Propagation delay skew is the difference in time taken for two or more channels to propagate their signals. This becomes significant when clocking is involved since it is undesirable for the clock pulse to arrive before the data has settled. A short propagation delay skew is therefore critical, especially in high data rate parallel systems, to establish and maintain accuracy and repeatability. The IsoLoop range of isolators all have a maximum propagation delay skew of 6 ns, which is 5x better than any optocoupler. The maximum channel to channel skew in the IL717, IL716, and IL715 isolators is only 3 ns which is 10x better than any optocoupler. 5 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Wide Body SOIC-16 Package : Order as IL715, IL716, or IL717 0.397(10.084) 0.413(10.490) Pin 1 Indent 8 1 Dimensions in inches (mm) 0.394 (10.007) 0.419 (10.643) 0.291(7.391) 0.299(7.595) 70 TYP 16 9 0.287(7.290) 0.297(7.544) 0.010(0.254) 0.020(0.508) x 45 0 0 0 - 8 TYP 0.013(0.330) 0.020(0.508) 0.009(0.229) 0.016(0.41) 0.012(0.305) 0.050(1.27) 0 7 TYP 0.092(2.337) 0.104(2.642) 0.080(2.032) 0.100(2.54) 0.040(1.016) 0.004(0.1016) 0.060(1.524) 0.011(0.279) Narrow Body SOIC-16 Package : Order as IL715-3, IL716-3, or IL717-3 0.386 0.394 (9.802) (9.999) 0 0.010 (0.245) 8 0.020 (0.508) x45 0.152 (3.861) 0.157 (3.988) Pin 1 Indent 1 0.016 (0.406) 0.050 (1.270) 0.228 (5.791) 0.244 (6.197) 0.008 (0.191) 0.010 (0.249) 0.013 (0.330) 0.020 (0.508) 0.050 (1.270) 0.060 (1.524) 0.054 (1.372) 0.068 (1.727) 0.004 (0.102) 0.040 (1.016) 0.060 (1.524) 0.010 (0.249) Dimensions: inches (mm) min max 6 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com ISOLOOP® IL715/6/7 Pin Configurations IL715, IL716, IL717 1 16 VDD2 GND1 IN1 2 15 GND2 OUT1 IN2 IN3 IN4 NC GND1 3 4 5 6 7 Galvanic Isolation VDD1 8 14 13 10 OUT2 OUT3 OUT4 NC 9 GND2 12 11 IL715 1 16 VDD2 GND1 2 15 IN1 3 GND2 OUT1 IN2 OUT3 OUT4 NC GND1 4 5 6 7 Galvanic Isolation VDD1 8 14 13 12 11 10 OUT2 IN3 IN4 9 NC GND2 IL716 1 16 VDD2 GND1 IN1 2 15 GND2 OUT1 IN2 IN3 OUT4 NC GND1 3 4 5 6 7 Galvanic Isolation VDD1 14 13 12 11 10 9 8 OUT2 OUT3 IN4 NC GND2 IL717 7 NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 Fax: (952) 829-9189 Internet: www.isoloop.com About NVE An ISO 9001 Certified Company NVE Corporation is a high technology components manufacturer having the unique capability to combine leading edge Giant Magnetoresistive (GMR) materials with integrated circuits to make high performance electronic components. Products include Magnetic Field Sensors, Magnetic Field Gradient Sensors (Gradiometer), Digital Magnetic Field Sensors, Digital Signal Isolators and Isolated Bus Transceivers. NVE is a leader in GMR research and in 1994 introduced the world's first products using GMR material, a line of GMR magnetic field sensors that can be used for position, magnetic media, wheel speed and current sensing. NVE is located in Eden Prairie, Minnesota, 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: [email protected] The information provided by NVE Corporation 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. The use of NVE Corporation’s products in such applications is understood to be entirely at the customer's own risk. Specifications shown are subject to change without notice. ISB-DS-001-IL715/6/7-C