5 kV RMS Dual Channel Digital Isolators ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet FEATURES High isolation voltage: 5000 V rms Up to 100 Mbps data rate Low propagation delay: 24 ns maximum Low dynamic power consumption Bidirectional communication 3 V to 5 V level translation High temperature operation: 125°C High common-mode transient immunity: >25 kV/μs Default high output: ADuM2280/ADuM2281 Default low output: ADuM2285/ADuM2286 16-lead SOIC wide body enhanced creepage package Safety and regulatory approvals (pending) UL recognition: 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A IEC 60601-1: 250 V rms (reinforced) IEC 60950-1: 400 V rms (reinforced) VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 VIORM = 846 V peak Pin-compatible with ADuM220x and ADuM221x families APPLICATIONS General-purpose, high voltage, multichannel isolation Medical equipment Power supplies RS-232/RS-422/RS-485 transceiver isolation The ADuM2280/ADuM2281/ADuM2285/ADuM2286 1 (also referred to as ADuM228x in this data sheet) are 5 kV rms dualchannel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocoupler devices and other integrated couplers. With propagation delay at 24 ns maximum, pulse width distortion is less than 2 ns for C grade. Channel-to-channel matching is tight at 5 ns for C grade. The ADuM228x are available in two channel configurations with three different data rates up to 100 Mbps (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. Unlike other optocoupler alternatives, the ADuM228x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions. When power is first applied or is not yet applied to the input side, the ADuM2280 and ADuM2281 have a default high output and the ADuM2285 and ADuM2286 have a default low output. GENERAL DESCRIPTION 1 NC 2 VDD2 VDD1 3 VOA VOA 4 DECODE ENCODE 12 VOB VIB 5 ENCODE DECODE 11 NC NC 6 7 10 NC GND1 8 9 GND2 NC 1 NC 2 VDD1 3 VIA 4 ENCODE DECODE VIB 5 ENCODE DECODE NC 6 GND1 NC PIN 1 INDICATOR ADuM2280/ ADuM2285 16 GND2 15 NC 14 13 NC = NO CONNECT 10446-001 GND1 GND1 GND2 15 NC 14 VDD2 13 VIA 12 VOB 11 NC 7 10 NC 8 9 GND2 ADuM2281/ ADuM2286 NC = NO CONNECT Figure 1. ADuM2280/ADuM2285 Pin-Compatible with ADuM2200/ADuM2210 1 16 PIN 1 INDICATOR 10446-002 FUNCTIONAL BLOCK DIAGRAMS Figure 2. ADuM2281/ADuM2286 Pin-Compatible with ADuM2201/ADuM2211 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending. Rev. 0 Document Feedback 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 ©2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Recommended Operating Conditions .......................................8 Applications ....................................................................................... 1 Absolute Maximum Ratings ............................................................9 General Description ......................................................................... 1 ESD Caution...................................................................................9 Functional Block Diagrams ............................................................. 1 Pin Configurations and Function Descriptions ......................... 10 Revision History ............................................................................... 2 Typical Performance Characteristics ........................................... 13 Specifications..................................................................................... 3 Applications Information .............................................................. 14 Electrical Characteristics—5 V Operation................................ 3 PC Board Layout ........................................................................ 14 Electrical Characteristics—3 V Operation................................ 4 Propagation Delay-Related Parameters ................................... 14 Electrical Characteristics—Mixed 5 V/3 V Operation............ 5 DC Correctness and Magnetic Field Immunity........................... 14 Electrical Characteristics—Mixed 3 V/5 V Operation............ 6 Power Consumption .................................................................. 15 Package Characteristics ............................................................... 7 Insulation Lifetime ..................................................................... 16 Regulatory Information ............................................................... 7 Outline Dimensions ....................................................................... 17 Insulation and Safety-Related Specifications ............................ 7 Ordering Guide .......................................................................... 17 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics .............................................................................. 8 REVISION HISTORY 11/12—Revision 0: Initial Version Rev. 0 | Page 2 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V OPERATION All typical specifications are at TA = 25°C, VDD1 = VDD2 = 5 V. Minimum/maximum specifications apply over the entire recommended operation range: 4.5 V ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V, −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 1. Parameter SWITCHING SPECIFICATIONS Pulse Width Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Propagation Delay Skew Channel Matching Codirectional Opposing Direction Jitter Symbol Min PW 1000 A Grade Typ Max Min B Grade Typ Max Min 40 10 1 50 10 tPHL, tPLH PWD 25 39 3 7 C Grade Typ Max 13 3 20 100 24 2 1.5 tPSK 38 12 9 tPSKCD tPSKOD 5 10 3 6 2 5 2 2 1 Unit Test Conditions ns Mbps ns ns ps/°C ns Within PWD limit Within PWD limit 50% input to 50% output |tPLH − tPHL| Between any two units at same operating conditions ns ns ns Table 2. Parameter SUPPLY CURRENT ADuM2280/ADuM2285 ADuM2281/ADuM2286 Symbol 1 Mbps—A, B, C Grades Min Typ Max IDD1 IDD2 IDD1 IDD2 1.3 2.7 2.3 2.3 25 Mbps—B, C Grades Min Typ Max 1.6 4.5 2.6 2.9 6.2 4.8 5.8 5.8 7.0 7.0 6.5 6.5 100 Mbps—C Grade Min Typ Max Unit 20 9.5 16 16.5 mA mA mA mA 25 15 19 19 Test Conditions No load Table 3. For All Models Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VDDx Logic Low Output Voltages VOL Input Current per Channel Supply Current per Channel Quiescent Input Supply Current Quiescent Output Supply Current Dynamic Input Supply Current Dynamic Output Supply Current Undervoltage Lockout Positive VDDx Threshold Negative VDDx Threshold VDDx Hysteresis II AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity1 Refresh Period Typ Max 0.3 VDDx VDDx − 0.1 VDDx − 0.4 −10 5.0 4.8 0.0 0.2 +0.01 0.1 0.4 +10 Test Conditions V V V V V V µA IOx = −20 µA, VIx = VIxH IOx = −4 mA, VIx = VIxH IOx = 20 µA, VIx = VIxL IOx = 4 mA, VIx = VIxL 0 V ≤ VIx ≤ VDDx IDDI(Q) IDDO(Q) IDDI(D) IDDO(D) 0.54 1.6 0.09 0.04 VDDxUV+ VDDxUVVDDxUVH 2.6 2.4 0.2 V V V 2.5 35 ns kV/µs 1.6 µs tR/tF |CM| tr 25 1 0.8 2.0 Unit mA mA mA/Mbps mA/Mbps 10% to 90% VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDDx. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 3 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet ELECTRICAL CHARACTERISTICS—3 V OPERATION All typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.0 V. Minimum/maximum specifications apply over the entire recommended operation range: 2.7 V ≤ VDD1 ≤ 3.6 V, 2.7 V ≤ VDD2 ≤ 3.6 V, −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 4. Parameter SWITCHING SPECIFICATIONS Pulse Width Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Propagation Delay Skew Channel Matching Codirectional Opposing-Direction Jitter Symbol Min PW 1000 A Grade Typ Max Min B Grade Typ Max Min 40 10 1 50 10 tPHL, tPLH PWD C Grade Typ Max 25 39 3 7 20 3 28 100 35 2.5 1.5 tPSK 38 16 12 tPSKCD tPSKOD 5 10 3 6 2.5 5 2 2 1 Unit Test Conditions ns Mbps ns ns ps/°C ns Within PWD limit Within PWD limit 50% input to 50% output |tPLH − tPHL| Between any two units at same operating conditions ns ns ns 7 Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. Table 5. Parameter SUPPLY CURRENT ADuM2280/ADuM2285 ADuM2281/ADuM2286 Symbol 1 Mbps—A, B, C Grades Min Typ Max IDD1 IDD2 IDD1 IDD2 0.75 2.0 1.6 1.7 25 Mbps—B, C Grades Min Typ Max 1.4 3.5 2.1 2.3 5.1 2.7 3.8 3.9 9.0 4.6 5.0 6.2 100 Mbps—C Grade Min Typ Max 17 4.8 11 11 23 9 15 15 Unit Test Conditions No load mA mA mA mA Table 6. For All Models Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VDDx Logic Low Output Voltages VOL Input Current per Channel Supply Current per Channel Quiescent Input Supply Current Quiescent Output Supply Current Dynamic Input Supply Current Dynamic Output Supply Current Undervoltage Lockout Positive VDDx Threshold Negative VDDx Threshold VDDx Hysteresis II AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity1 Refresh Period Typ Max 0.3 VDDx VDDx − 0.1 VDDx − 0.4 −10 3.0 2.8 0.0 0.2 +0.01 0.1 0.4 +10 Test Conditions V V V V V V µA IOx = −20 µA, VIx = VIxH IOx = −4 mA, VIx = VIxH IOx = 20 µA, VIx = VIxL IOx = 4 mA, VIx = VIxL 0 V ≤ VIx ≤ VDDx IDDI(Q) IDDO(Q) IDDI(D) IDDO(D) 0.4 1.2 0.08 0.015 VDDxUV+ VDDxUV− VDDxUVH 2.6 2.4 0.2 V V V 3 35 ns kV/µs 1.6 µs tR/tF |CM| tr 25 1 0.6 1.7 Unit mA mA mA/Mbps mA/Mbps 10% to 90% VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDDx. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 4 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 ELECTRICAL CHARACTERISTICS—MIXED 5 V/3 V OPERATION All typical specifications are at TA = 25°C, VDD1 = 5 V, VDD2 = 3.0 V. Minimum/maximum specifications apply over the entire recommended operation range: 4.5 V ≤ VDD1 ≤ 5.5 V, 2.7 V ≤ VDD2 ≤ 3.6 V; and −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 7. Parameter SWITCHING SPECIFICATIONS Pulse Width Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Propagation Delay Skew Channel Matching Codirectional Opposing-Direction Jitter Symbol Min PW 1000 A Grade Typ Max Min B Grade Typ Max Min 40 10 1 50 10 tPHL, tPLH PWD 25 39 3 7 C Grade Typ Max 13 3 20 100 26 2 1.5 tPSK 38 16 12 tPSKCD tPSKOD 5 10 3 6 2 5 2 2 1 Unit Test Conditions ns Mbps ns ns ps/°C ns Within PWD limit Within PWD limit 50% input to 50% output |tPLH − tPHL| Between any two units at same operating conditions ns ns ns 7 Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. Table 8. Parameter SUPPLY CURRENT ADuM2280/ADuM2285 ADuM2281/ADuM2286 Symbol 1 Mbps—A, B, C Grades Min Typ Max IDD1 IDD2 IDD1 IDD2 1.3 2.0 2.3 1.7 25 Mbps—B, C Grades Min Typ Max 1.6 3.5 2.6 2.3 6.2 2.7 5.8 3.9 7.0 4.6 6.5 6.2 100 Mbps—C Grades Min Typ Max 20 4.8 16 11 25 9.0 19 15 Unit Test Conditions No load mA mA mA mA Table 9. For All Models Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VDDx Logic Low Output Voltages VOL Input Current per Channel Supply Current per Channel Quiescent Input Supply Current Quiescent Output Supply Current Dynamic Input Supply Current Dynamic Output Supply Current Undervoltage Lockout Positive VDDx Threshold Negative VDDx Threshold VDDx Hysteresis II AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity1 Refresh Period Typ Max 0.3 VDDx VDDx − 0.1 VDDx − 0.4 −10 VDDx VDDx − 0.2 0.0 0.2 +0.01 0.1 0.4 +10 Test Conditions V V V V V V µA IOx = −20 µA, VIx = VIxH IOx = −4 mA, VIx = VIxH IOx = 20 µA, VIx = VIxL IOx = 4 mA, VIx = VIxL 0 V ≤ VIx ≤ VDDx IDDI(Q) IDDO(Q) IDDI(D) IDDO(D) 0.54 1.2 0.09 0.02 VDDxUV+ VDDxUV− VDDxUVH 2.6 2.4 0.2 V V V 2.5 35 ns kV/µs 1.6 µs tR/tF |CM| tr 25 1 0.75 2.0 Unit mA mA mA/Mbps mA/Mbps 10% to 90% VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDDx. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 5 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet ELECTRICAL CHARACTERISTICS—MIXED 3 V/5 V OPERATION All typical specifications are at TA = 25°C, VDD1 = 3.0 V, VDD2 = 5 V. Minimum/maximum specifications apply over the entire recommended operation range: 2.7 V ≤ VDD1 ≤ 3.6 V, 4.5 V ≤ VDD2 ≤ 5.5 V; and −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are tested with CL = 15 pF and CMOS signal levels, unless otherwise noted. Table 10. Parameter SWITCHING SPECIFICATIONS Pulse Width Data Rate Propagation Delay Pulse Width Distortion Change vs. Temperature Propagation Delay Skew Channel Matching Codirectional Opposing-Direction Jitter Symbol Min PW 1000 A Grade Typ Max Min B Grade Typ Max Min 40 10 1 50 10 tPHL, tPLH PWD 25 39 3 7 C Grade Typ Max 16 3 24 100 30 2.5 1.5 tPSK 38 16 12 tPSKCD tPSKOD 5 10 3 6 2.5 5 2 2 1 Unit Test Conditions ns Mbps ns ns ps/C ns Within PWD limit Within PWD limit 50% input to 50% output |tPLH − tPHL| Between any two units at same operating conditions ns ns ns 7 Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation barrier. Opposing-directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the isolation barrier. Table 11. Parameter SUPPLY CURRENT ADuM2280/ADuM2285 ADuM2281/ADuM2286 Symbol 1 Mbps—A, B, C Grades Min Typ Max IDD1 IDD2 IDD1 IDD2 0.75 2.7 1.6 1.7 25 Mbps—B, C Grades Min Typ Max 1.4 4.5 2.1 2.3 5.1 4.8 3.8 5.8 9.0 7.0 5.0 6.5 100 Mbps—C Grade Min Typ Max Unit 17 9.5 11 16.5 mA mA mA mA 23 15 15 19 Test Conditions No load Table 12. For All Models Parameter DC SPECIFICATIONS Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Symbol Min VIH VIL VOH 0.7 VDDx Logic Low Output Voltages VOL Input Current per Channel Supply Current per Channel Quiescent Input Supply Current Quiescent Output Supply Current Dynamic Input Supply Current Dynamic Output Supply Current II Undervoltage Lockout Positive VDDx Threshold Negative VDDx Threshold VDDx Hysteresis AC SPECIFICATIONS Output Rise/Fall Time Common-Mode Transient Immunity1 Refresh Period Typ Max 0.3 VDDx VDDx − 0.1 VDDx − 0.4 −10 VDDx VDDx − 0.2 0.0 0.2 +0.01 V V V V V V µA IOx = −20 µA, VIx = VIxH IOx = −4 mA, VIx = VIxH IOx = 20 µA, VIx = VIxL IOx = 4 mA, VIx = VIxL 0 V ≤ VIx ≤ VDDx 0.03 mA mA mA/Mbps mA/Mbps VDDxUV+ VDDxUV− VDDxUVH 2.6 2.4 0.2 V V V 2.5 35 ns kV/µs 1.6 µs tr 25 1 0.75 2.0 Test Conditions IDDI(Q) IDDO(Q) IDDI(D) IDDO(D) tR/tF |CM| 0.4 1.6 0.08 0.1 0.4 +10 Unit 10% to 90% VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VO > 0.8 VDDx. The common-mode voltage slew rates apply to both rising and falling common-mode voltage edges. Rev. 0 | Page 6 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 PACKAGE CHARACTERISTICS Table 13. Parameter RESISTANCE AND CAPACITANCE Resistance (Input-to-Output) 1 Capacitance (Input-to-Output)1 Input Capacitance 2 IC Junction to Ambient Thermal Resistance 1 2 Symbol Min RI-O CI-O CI θJA Typ Max 1013 2.2 4.0 45 Unit Ω pF pF °C/W Test Conditions f = 1 MHz Thermocouple located at the center of the package underside; test conducted on a 4-layer board with thin traces This device is considered a 2-terminal device; Pin 1 through Pin 8 are shorted together and Pin 9 through Pin 16 are shorted together. Input capacitance is from any input data pin to ground. REGULATORY INFORMATION The ADuM228x will be approved by the organizations listed in Table 14. See Table 19 and the Absolute Maximum Ratings section for recommended maximum working voltages for specific cross-isolation waveforms and insulation levels. Table 14. UL (Pending) Recognized under UL 1577 Component Recognition Program 1 Single Protection 5000 V rms Isolation Voltage File E214100 1 2 CSA (Pending) Approved under CSA Component Acceptance Notice #5A Basic insulation per CSA 60950-1-07 and IEC 60950-1, 600 V rms (848 V peak) maximum working voltage Reinforced insulation per CSA 60950-1-07 and IEC 60950-1, 400 V rms (565 V peak) maximum working voltage Reinforced insulation per IEC 60601-1 250 V rms (353 V peak) maximum working voltage File 205078 VDE (Pending) Certified according to DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 2 Reinforced insulation, 846 V peak File 2471900-4880-0001 In accordance with UL 1577, each ADuM228x is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit = 10 µA). In accordance with DIN V VDE V 0884-10, each ADuM228x is proof tested by applying an insulation test voltage ≥1590 V peak for 1 sec (partial discharge detection limit = 5 pC). The * marking branded on the component designates DIN V VDE V 0884-10 approval. INSULATION AND SAFETY-RELATED SPECIFICATIONS Table 15. Parameter Rated Dielectric Insulation Voltage Minimum External Air Gap Symbol L(I01) Value 5000 8.0 min Minimum External Tracking (Creepage) L(I02) 8.3 min Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group CTI 0.017 min >400 II Unit Test Conditions V rms 1-minute duration mm Distance measured from input terminals to output terminals, shortest distance through air along the PCB mounting plane, as an aid to PC board layout mm Measured from input terminals to output terminals, shortest distance path along body mm Insulation distance through insulation V DIN IEC 112/VDE 0303 Part 1 Material Group (DIN VDE 0110, 1/89, Table 1) Rev. 0 | Page 7 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by means of protective circuits. Note that the asterisk (*) branded on packages denotes DIN V VDE V 0884-10 approval for 846 VPEAK working voltage. Table 16. Description Installation Classification per DIN VDE 0110 For Rated Mains Voltage ≤ 150 V rms For Rated Mains Voltage ≤ 300 V rms For Rated Mains Voltage ≤ 400 V rms Climatic Classification Pollution Degree per DIN VDE 0110, Table 1 Maximum Working Insulation Voltage Input-to-Output Test Voltage, Method B1 Input-to-Output Test Voltage, Method A After Environmental Tests Subgroup 1 After Input and/or Safety Test Subgroup 2 and Subgroup 3 Highest Allowable Overvoltage Withstand Isolation Voltage Surge Isolation Voltage Safety Limiting Values Case Temperature Side 1 IDD1 Current Insulation Resistance at TS Test Conditions VIORM × 1.875 = Vpd(m), 100% production test, tini = tm = 1 sec, partial discharge < 5 pC VIORM × 1.5 = Vpd(m), tini=60 sec, tm = 10 sec, partial discharge < 5 pC VIORM × 1.2 = Vpd(m), tini = 60 sec, tm = 10 sec, partial discharge < 5 pC 1 minute withstand rating VPEAK = 10 kV, 1.2 µs rise time, 50 µs, 50% fall time Maximum value allowed in the event of a failure (see Figure 3) VIO = 500 V Characteristic Unit VIORM Vpd(m) I to IV I to II I to II 40/105/21 2 846 1590 VPEAK VPEAK Vpd(m) 1269 VPEAK Vpd(m) 1818 VPEAK VIOTM VISO VIOSM 6000 5000 6000 VPEAK VRMS VPEAK TS IS1 RS 150 555 >109 °C mA Ω RECOMMENDED OPERATING CONDITIONS 600 550 SAFETY-LIMITING CURRENT (mA) Symbol Table 17. 500 Parameter Operating Temperature Supply Voltages 1 Input Signal Rise and Fall Times 450 400 350 300 1 250 150 100 50 100 150 AMBIENT TEMPERATURE (°C) 200 10446-003 50 0 Min −40 2.7 Max +125 5.5 1.0 Unit °C V ms See the DC Correctness and Magnetic Field Immunity section. All voltages are relative to their respective ground. 200 0 Symbol TA VDD1, VDD2 Figure 3. Thermal Derating Curve, Dependence of Safety-Limiting Values with Case Temperature per DIN V VDE V 0884-10 Rev. 0 | Page 8 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. 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. Table 18. Parameter Storage Temperature (TST) Range Ambient Operating Temperature (TA) Range Supply Voltages (VDD1, VDD2) Input Voltages (VIA, VIB) Output Voltages (VOA, VOB) Average Output Current per Pin1 Side 1 (IO1) Side 2 (IO2) Common-Mode Transients2 1 2 Rating −65°C to +150°C −40°C to +125°C −0.5 V to +7.0 V −0.5 V to VDDI + 0.5 V −0.5 V to VDD2 + 0.5 V ESD CAUTION −10 mA to +10 mA −10 mA to +10 mA −100 kV/μs to +100 kV/μs See Figure 3 for maximum rated current values for various temperatures. Refers to common-mode transients across the insulation barrier. Commonmode transients exceeding the absolute maximum ratings may cause latch-up or permanent damage. Table 19. Maximum Continuous Working Voltage 1 Parameter AC Voltage, Bipolar Waveform AC Voltage, Unipolar Waveform Max 565 Unit V peak Constraint 50-year minimum lifetime 1131 V peak 50-year minimum lifetime 1131 V peak 50-year minimum lifetime DC Voltage 1 Refers to the continuous voltage magnitude imposed across theisolation barrier. See the Insulation Lifetime section for more details. Rev. 0 | Page 9 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS GND1 1 VDD1 3 VIA 4 VIB 5 16 GND2 ADuM2280/ ADuM2285 TOP VIEW (Not to Scale) 15 NC 14 VDD2 13 VOA 12 VOB NC 6 11 NC GND1 7 10 NC NC 8 9 GND2 10446-004 NC 2 NOTES 1. NC = NO CONNECT. 2. PIN 1 AND PIN 7 ARE INTERNALLY CONNECTED, AND CONNECTING BOTH TO GND1 IS RECOMMENDED. 3. PIN 9 AND PIN 16 ARE INTERNALLY CONNECTED, AND CONNECTING BOTH TO GND2 IS RECOMMENDED. Figure 4. ADuM2280/ADuM2285 Pin Configuration Table 20. ADuM2280/ADuM2285 Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Mnemonic GND1 NC VDD1 VIA VIB NC GND1 NC GND2 NC NC VOB VOA VDD2 NC GND2 Description Ground 1. Ground reference for Isolator Side 1. No internal connection. Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Logic Input A. Logic Input B. No internal connection. Ground 1. Ground reference for Isolator Side 1. No internal connection. Ground 2. Ground reference for Isolator Side 2. No internal connection. No internal connection. Logic Output B. Logic Output A. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V. No internal connection. Ground 2. Ground reference for Isolator Side 2. For specific layout guidelines, refer to the AN-1109 Application Note, Recommendations for Control of Radiated Emissions with iCoupler Devices. Rev. 0 | Page 10 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 16 GND2 NC 2 VDD1 3 VOA 4 VIB 5 ADuM2281/ ADuM2286 TOP VIEW (Not to Scale) 15 NC 14 VDD2 13 VIA 12 VOB NC 6 11 NC GND1 7 10 NC NC 8 9 GND2 10446-005 GND1 1 NOTES: 1. NC = NO CONNECT. 2. PIN 1 AND PIN 7 ARE INTERNALLY CONNECTED, AND CONNECTING BOTH TO GND1 IS RECOMMENDED. 3. PIN 9 AND PIN 16 ARE INTERNALLY CONNECTED, AND CONNECTING BOTH TO GND2 IS RECOMMENDED. Figure 5. ADuM2281/ADuM2286 Pin Configuration Table 21. ADuM2281/ADuM2286 Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Mnemonic GND1 NC VDD1 VOA VIB NC GND1 NC GND2 NC NC VOB VIA VDD2 NC GND2 Description Ground 1. Ground reference for Isolator Side 1. No internal connection. Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V. Logic Output A. Logic Input B. No internal connection. Ground 1. Ground reference for Isolator Side 1. No internal connection. Ground 2. Ground reference for Isolator Side 2. No internal connection. No internal connection. Logic Output B. Logic Input A. Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V. No internal connection. Ground 2. Ground reference for Isolator Side 2. For specific layout guidelines, refer to the AN-1109 Application Note, Recommendations for Control of Radiated Emissions with iCoupler Devices. Rev. 0 | Page 11 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet Table 22. ADuM2280 Truth Table (Positive Logic) VIA Input H L H L X VIB Input H L L H X VDD1 State Powered Powered Powered Powered Unpowered VDD2 State Powered Powered Powered Powered Powered VOA Output H L H L H VOB Output H L L H H X X Powered Unpowered Indeterminate Indeterminate Notes Outputs return to the input state within 1.6 µs of VDDI power restoration. Outputs return to the input state within 1.6 µs of VDDO power restoration. Table 23. ADuM2281 Truth Table (Positive Logic) VIA Input H L H L X VIB Input H L L H X VDD1 State Powered Powered Powered Powered Unpowered VDD2 State Powered Powered Powered Powered Powered VOA Output H L H L Indeterminate VOB Output H L L H H X X Powered Unpowered H Indeterminate Notes Outputs return to the input state within 1.6 µs of VDDI power restoration. Outputs return to the input state within 1.6 µs of VDDO power restoration. Table 24. ADuM2285 Truth Table (Positive Logic) VIA Input H L H L X VIB Input H L L H X VDD1 State Powered Powered Powered Powered Unpowered VDD2 State Powered Powered Powered Powered Powered VOA Output H L H L L VOB Output H L L H L X X Powered Unpowered Indeterminate Indeterminate Notes Outputs return to the input state within 1.6 µs of VDDI power restoration. Outputs return to the input state within 1.6 µs of VDDO power restoration. Table 25. ADuM2286 Truth Table (Positive Logic) VIA Input H L H L X VIB Input H L L H X VDD1 State Powered Powered Powered Powered Unpowered VDD2 State Powered Powered Powered Powered Powered VOA Output H L H L Indeterminate VOB Output H L L H L X X Powered Unpowered L Indeterminate Rev. 0 | Page 12 of 20 Notes Outputs return to the input state within 1.6 µs of VDDI power restoration. Outputs return to the input state within 1.6 µs of VDDO power restoration. Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 TYPICAL PERFORMANCE CHARACTERISTICS 10 20 8 CURRENT (mA) CURRENT (mA) 15 6 5V 3V 4 5V 10 3V 5 0 10 20 30 40 50 60 70 80 90 100 DATA RATE (Mbps) 0 10446-006 0 0 10 20 30 40 50 60 70 80 90 100 DATA RATE (Mbps) Figure 6. Typical Supply Current per Input Channel vs. Data Rate for 5 V and 3 V Operation 10446-009 2 Figure 9. Typical ADuM2280 or ADuM2285 VDD1 Supply Current vs. Data Rate for 5 V and 3 V Operation 20 10 8 CURRENT (mA) CURRENT (mA) 15 6 4 5V 10 5V 5 2 0 10 20 30 40 50 60 70 80 90 100 DATA RATE (Mbps) 0 10446-007 0 0 10 20 30 40 50 60 70 80 90 100 DATA RATE (Mbps) Figure 7. Typical Supply Current per Output Channel vs. Data Rate for 5 V and 3 V Operation (No Output Load) 10446-010 3V 3V Figure 10. Typical ADuM2280 or ADuM2285 VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation 10 20 8 CURRENT (mA) 6 5V 4 10 5V 3V 5 2 0 0 10 20 30 40 50 60 70 80 90 100 DATA RATE (Mbps) Figure 8. Typical Supply Current per Output Channel vs. Data Rate for 5 V and 3 V Operation (15 pF Output Load) 0 0 10 20 30 40 50 60 DATA RATE (Mbps) 70 80 90 100 10446-011 3V 10446-008 CURRENT (mA) 15 Figure 11. Typical ADuM2281 or ADuM2286 VDD1 or VDD2 Supply Current vs. Data Rate for 5 V and 3 V Operation Rev. 0 | Page 13 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Data Sheet APPLICATIONS INFORMATION PC BOARD LAYOUT The ADuM228x digital isolators requires no external interface circuitry for the logic interfaces. Power supply bypassing is strongly recommended at the input and output supply pins (see Figure 12). Bypass capacitors are most conveniently connected between Pin 1 and Pin 3 for VDD1 and between Pin 14 and Pin 16 for VDD2. The capacitor value should be between 0.01 µF and 0.1 µF. The total lead length between both ends of the capacitor and the input power supply pin should not exceed 20 mm. Bypassing between Pin 3 and Pin 7 and between Pin 9 and Pin 14 should be considered unless the ground pair on each package side are connected close to the package. GND2 GND1 NC NC VDD2 VDD1 VIB VOB NC NC GND1 NC NC GND2 10446-012 VOA/VIA VIA/VOA In applications involving high common-mode transients, care should be taken to ensure that board coupling across the isolation barrier is minimized. Furthermore, the board layout should be designed such that any coupling that does occur equally affects all pins on a given component side. Failure to ensure this could cause voltage differentials between pins exceeding the device’s absolute maximum ratings, thereby leading to latch-up or permanent damage. Propagation delay skew refers to the maximum amount the propagation delay differs between multiple ADuM228x components operating under the same conditions. DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY Positive and negative logic transitions at the isolator input cause narrow (~1 ns) pulses to be sent via the transformer to the decoder. The decoder is bistable and is, therefore, either set or reset by the pulses indicating input logic transitions. In the absence of logic transitions at the input for more than ~1 µs, a periodic set of refresh pulses indicative of the correct input state are sent to ensure dc correctness at the output. The limitation on the device’s magnetic field immunity is set by the condition in which induced voltage in the transformer receiving coil is sufficiently large to either falsely set or reset the decoder. The following analysis defines such conditions. The ADuM2280 is examined in a 3 V operating condition because it represents the most susceptible mode of operation of this product. The pulses at the transformer output have an amplitude greater than 1.5 V. The decoder has a sensing threshold of about 1.0 V, therefore establishing a 0.5 V margin in which induced voltages can be tolerated. The voltage induced across the receiving coil is given by The ADuM228x can readily meet CISPR 22 Class A (and FCC Class A) emissions standards, as well as the more stringent CISPR 22 Class B (and FCC Class B) standards in an unshielded environment, with proper PCB design choices. Refer to the AN-1109 Application Note for PCB-related EMI mitigation techniques, including board layout and stackup issues. V = (−dβ/dt)∑πrn2; n = 1, 2, …, N PROPAGATION DELAY-RELATED PARAMETERS Propagation delay is a parameter that describes the time it takes a logic signal to propagate through a component. The input-tooutput propagation delay time for a high-to-low transition may differ from the propagation delay time of a low-to-high transition. where: β is the magnetic flux density. rn is the radius of the nth turn in the receiving coil. N is the number of turns in the receiving coil. Given the geometry of the receiving coil in the ADuM2280 and an imposed requirement that the induced voltage be, at most, 50% of the 0.5 V margin at the decoder, a maximum allowable magnetic field is calculated, as shown in Figure 14. 50% tPHL 50% 10446-013 tPLH OUTPUT (VOx) Channel-to-channel matching refers to the maximum amount the propagation delay differs between channels within a single ADuM228x component. If the decoder receives no pulses for more than about 5 µs, the input side is assumed to be unpowered or nonfunctional, in which case, the isolator output is forced to a default low state by the watchdog timer circuit. Figure 12. Recommended Printed Circuit Board Layout INPUT (VIx) Pulse width distortion is the maximum difference between these two propagation delay values and an indication of how accurately the timing of the input signal is preserved. Figure 13. Propagation Delay Parameters Rev. 0 | Page 14 of 20 Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 Note that at combinations of strong magnetic field and high frequency, any loops formed by printed circuit board traces could induce sufficiently large error voltages to trigger the thresholds of succeeding circuitry. Take care to avoid PCB structures that form loops. MAXIMUM ALLOWABLE MAGNETIC FLUX DENSITY (kgauss) 100 10 1 POWER CONSUMPTION The supply current at a given channel of the ADuM228x isolators is a function of the supply voltage, the data rate of the channel, and the output load of the channel. 0.1 0.01 0.001 1k 10k 100k 1M 10M MAGNETIC FIELD FREQUENCY (Hz) 100M 10446-014 For each input channel, the supply current is given by For example, at a magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.08 kgauss induces a voltage of 0.25 V at the receiving coil. This is about 50% of the sensing threshold and does not cause a faulty output transition. If such an event occurs, with the worst-case polarity, during a transmitted pulse, it would reduce the received pulse from >1.0 V to 0.75 V. This is still well above the 0.5 V sensing threshold of the decoder. The preceding magnetic flux density values correspond to specific current magnitudes at given distances away from the ADuM2280 transformers. Figure 15 expresses these allowable current magnitudes as a function of frequency for selected distances. The ADuM2280 is very insensitive to external fields. Only extremely large, high frequency currents, very close to the component could potentially be a concern. For the 1 MHz example noted, one would have to place a 0.2 kA current 5 mm away from the ADuM2280 to affect component operation. DISTANCE = 1m 10 1 0.1 0.01 1k f ≤ 0.5 fr IDDO = (IDDO(D) + (0.5 × 10 ) × CL × VDDO) × (2f − fr) + IDDO(Q) f > 0.5 fr where: IDDI(D), IDDO(D) are the input and output dynamic supply currents per channel (mA/Mbps). CL is the output load capacitance (pF). VDDO is the output supply voltage (V). f is the input logic signal frequency (MHz); it is half the input data rate, expressed in units of Mbps. fr is the input stage refresh rate (Mbps) = 1/Tr (µs). IDDI(Q), IDDO(Q) are the specified input and output quiescent supply currents (mA). To calculate the total VDD1 and VDD2 supply current, the supply currents for each input and output channel corresponding to VDD1 and VDD2 are calculated and totaled. Figure 6 and Figure 7 show per-channel supply currents as a function of data rate for an unloaded output condition. Figure 8 shows the per-channel supply current as a function of data rate for a 15 pF output condition. Figure 9 through Figure 11 show the total VDD1 and VDD2 supply current as a function of data rate for the ADuM2280/ADuM2285 and ADuM2281/ADuM2286 channel configurations. DISTANCE = 5mm 100M f > 0.5 fr −3 DISTANCE = 100mm 10k 100k 1M 10M MAGNETIC FIELD FREQUENCY (Hz) IDDI = IDDI(D) × (2f − fr) + IDDI (Q) IDDO = IDDO(Q) 10446-015 MAXIMUM ALLOWABLE CURRENT (kA) 100 f ≤ 0.5 fr For each output channel, the supply current is given by Figure 14. Maximum Allowable External Magnetic Flux Density 1000 IDDI = IDDI(Q) Figure 15. Maximum Allowable Current for Various Current to ADuM2280 Spacings Rev. 0 | Page 15 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 Analog Devices performs accelerated life testing using voltage levels higher than the rated continuous working voltage. Acceleration factors for several operating conditions are determined. These factors allow calculation of the time to failure at the actual working voltage. The values shown in Table 19 summarize the peak voltage for 50 years of service life for a bipolar ac operating condition and the maximum CSA/VDE approved working voltages. In many cases, the approved working voltage is higher than 50-year service life voltage. Operation at these high working voltages can lead to shortened insulation life in some cases. Note that the voltage presented in Figure 17 is shown as sinusoidal for illustration purposes only. It is meant to represent any voltage waveform varying between 0 V and some limiting value. The limiting value can be positive or negative, but the voltage cannot cross 0 V. The insulation lifetime of the ADuM228x depends on the voltage waveform type imposed across the isolation barrier. The iCoupler insulation structure degrades at different rates depending on whether the waveform is bipolar ac, unipolar ac, or dc. Figure 16, Figure 17, and Figure 18 illustrate these different isolation voltage waveforms. RATED PEAK VOLTAGE 10446-016 All insulation structures eventually break down when subjected to voltage stress over a sufficiently long period. The rate of insulation degradation is dependent on the characteristics of the voltage waveform applied across the insulation. In addition to the testing performed by the regulatory agencies, Analog Devices carries out an extensive set of evaluations to determine the lifetime of the insulation structure within the ADuM228x. working voltages while still achieving a 50-year service life. The working voltages listed in Table 19 can be applied while maintaining the 50-year minimum lifetime provided the voltage conforms to either the unipolar ac or dc voltage case. Any crossinsulation voltage waveform that does not conform to Figure 17 or Figure 18 should be treated as a bipolar ac waveform, and its peak voltage should be limited to the 50-year lifetime voltage value listed in Table 19. 0V Figure 16. Bipolar AC Waveform RATED PEAK VOLTAGE 10446-017 INSULATION LIFETIME Data Sheet 0V Figure 17. Unipolar AC Waveform In the case of unipolar ac or dc voltage, the stress on the insulation is significantly lower. This allows operation at higher Rev. 0 | Page 16 of 20 10446-018 RATED PEAK VOLTAGE Bipolar ac voltage is the most stringent environment. The goal of a 50-year operating lifetime under the ac bipolar condition determines the Analog Devices recommended maximum working voltage. 0V Figure 18. DC Waveform Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 OUTLINE DIMENSIONS 12.85 12.75 12.65 1.93 REF 16 9 7.60 7.50 7.40 1 10.51 10.31 10.11 8 PIN 1 MARK 2.64 2.54 2.44 2.44 2.24 45° SEATING PLANE 1.27 BSC 8° 0° 1.01 0.76 0.51 0.46 0.36 0.32 0.23 11-15-2011-A 0.30 0.20 0.10 COPLANARITY 0.1 0.71 0.50 0.31 0.25 BSC GAGE PLANE COMPLIANT TO JEDEC STANDARDS MS-013-AC Figure 19. 16-Lead Standard Small Outline Package, with Increased Creepage [SOIC_IC] Wide Body (RI-16-2) Dimension shown in millimeters ORDERING GUIDE Model 1, 2 ADuM2280ARIZ ADuM2280BRIZ ADuM2280CRIZ ADuM2281ARIZ ADuM2281BRIZ ADuM2281CRIZ ADuM2285ARIZ ADuM2285BRIZ ADuM2285CRIZ ADuM2286ARIZ ADuM2286BRIZ ADuM2286CRIZ 1 2 No. of Inputs, VDD1 Side 2 2 2 1 1 1 2 2 2 1 1 1 No. of Inputs, VDD2 Side 0 0 0 1 1 1 0 0 0 1 1 1 Max Data Rate 1 Mbps 25 Mbps 100 Mbps 1 Mbps 25 Mbps 100 Mbps 1 Mbps 25 Mbps 100 Mbps 1 Mbps 25 Mbps 100 Mbps Max Prop Delay, 5 V 50 35 24 50 35 24 50 35 24 50 35 24 Output Default State High High High High High High Low Low Low Low Low Low Tape and reel is available. The addition of an -RL suffix designates a 13” (1,000 units) tape and reel option. Z = RoHS Compliant Part. Rev. 0 | Page 17 of 20 Temperature Range −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC 16-Lead SOIC_IC Package Option RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 RI-16-2 ADuM2280/ADuM2281/ADuM2285/ADuM2286 NOTES Rev. 0 | Page 18 of 20 Data Sheet Data Sheet ADuM2280/ADuM2281/ADuM2285/ADuM2286 NOTES Rev. 0 | Page 19 of 20 ADuM2280/ADuM2281/ADuM2285/ADuM2286 NOTES ©2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10446-0-1/12(0) Rev. 0 | Page 20 of 20 Data Sheet