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低压差分信号(LVDS)是低功耗、高速、点对点通信的既定 标准(TIA/EIA-644)。隔离LVDS接口的好处 有：保护器件免受故障影响(安全隔离)，以及增加鲁棒性 (功能隔离)。
隔离式LVDS的应用包括安全隔离和/或电路板间、背板和 印刷电路板(PCB)通信链路的功能隔离。例如当LVDS背板 系统的一个或多个插卡有遭受高电压瞬变的风险时，便可 使用安全隔离。隔离LVDS接口可确保这类故障条件不影 响系统中的其他电路。某些情况下使用功能隔离很有效， 例如测量设备。若在ADC和FPGA之间隔离LVDS链路，则 可提供浮动的接地层，提升测量数据的完整性，并降低来 自应用的其他部分的干扰。
ADuM3442为 ADN4663 LVDS驱动器的逻辑输入以及 ADN4664LVDS驱动器的逻辑输出提供数字隔离。除了使用 ADuM5000提供隔离式电源，在工业和仪器仪表应用中隔 离LVDS链路还面临着许多挑战，包括：
逻辑信号与LVDS驱动器/接收器隔离、确保电路总线端 的标准LVDS通信。
高度集成的隔离仅使用两个额外的宽体SOIC器件 ADuM3442 和 ADuM5000)来隔离标准LVDS器件 ADN4663 和 ADN4664)。
与传统隔离(光耦合器)相比功耗更低。LVDS应用的特性 之一是低功耗工作。
多通道隔离。LVDS应用中，使用并行通道以尽量增大 数据吞吐量。本电路演示4通道隔离(本实例中采用两条 发射通道和两条接收通道)。
工作速度高；最高工作速度达150 Mbps，轻松满足基本 LVDS的速度要求。
BOM表：
| C1 | AVX - 0603ZD106MAT2A - CAPACITOR, X5R, 0603, 10V, 10UF | 10uF | | 603 | Yes | Top | | 0603ZD106MAT2A | FEC1867954 | | C2 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C3 | AVX - 0805ZD106KAT2A - CAPACITOR, 0805, X5R, 10V, 10UF | 10uF | +/-10% | 805 | Yes | Top | AVX | 0805ZD106KAT2A | FEC 1833812 | | C4 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C5 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C6 | AVX - 0805ZD106KAT2A - CAPACITOR, 0805, X5R, 10V, 10UF | 10uF | +/-10% | 805 | Yes | Top | AVX | 0805ZD106KAT2A | FEC 1833812 | | C7 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C8 | AVX - 0603ZD106MAT2A - CAPACITOR, X5R, 0603, 10V, 10UF | 10uF | | 603 | Yes | Top | | 0603ZD106MAT2A | FEC1867954 | | C9 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C10 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C11 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C12 | AVX - 06031C103JAT2A - CAPACITOR, 0603, X7R, 100V, 10NF | 10nF | | 603 | Yes | Top | | 0603ZD106MAT2A | FEC1833876 | | C13 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C14 | AVX - 06031C103JAT2A - CAPACITOR, 0603, X7R, 100V, 10NF | 10nF | | 603 | Yes | Top | | 0603ZD106MAT2A | FEC1833876 | | C15 | CAPACITOR, 0603, X7R, 10V, 100NF | 0.1 μF | | 603 | Yes | Top | | MCCA001122 | FEC1856307 | | C16 | KEMET - B45196H3106K209 - CAPACITOR, CASE B, 10UF, 16V | 10uF | TBA | CAP\TAJ_B | Yes | Top | AVX | TBA | FEC 9753893 | | DIN1 | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | IN1 | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | DIN2 | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | IN2 | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | DOUT1+ | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | DOUT1- | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | DOUT2+ | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | DOUT2- | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | GND1 | Black Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-2137 | FEC 873-1128 | | GND2 | Black Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-2137 | FEC 873-1128 | | GND2 | Black Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-2137 | FEC 873-1128 | | GND2 | Black Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-2137 | FEC 873-1128 | | J1 | 2 Pin Terminal Block (5mm Pitch) | | | CON\POWER | No | Top | Camden Electronics | | FEC 151-785 | | J2 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J3 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J4 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J5 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J6 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J7 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J8 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J9 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J10 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J11 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J12 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | J13 | PCB SMB Jack (Square) | | | SMA | No | Top | Multicomp | 24-14-2-TGG | FEC 1169641 | | R1 | Thick Film Resistor, 0402 | 100r | 0.01 | 402 | Yes | Top | Vishay Draloric | MC 0.063W 0603 0R | FEC 1738837 | | R2 | Thick Film Resistor, 0402 | 100r | 0.01 | 402 | Yes | Top | Vishay Draloric | MC 0.063W 0603 0R | FEC 1738837 | | RIN1+ | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | RIN1- | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | RIN2+ | Yellow Testpoint | | | TESTPOINT | No | Top | Vero | 20-313140 | FEC 873-1187 | | RIN2- | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | ROUT1 | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | OUT1 | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | ROUT2 | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | OUT2 | Green Testpoint | | | TESTPOINT | No | Top | Vero | 20-313138 | FEC 873-1160 | | U1 | GENERIC 16 PIN SMT | | | SO16WB-RI16 | Yes | Top | | | ADUM5000ARWZ | | U2 | GENERIC 16 PIN SMT | | | SO16WB-RI16 | Yes | Top | | | ADUM3442CRWZ | | U3 | GENERIC 8 PIN SMT | | | SO8NB | Yes | Top | | | ADN4663BRZ | | U4 | GENERIC 8 PIN SMT | | | SO8NB | Yes | Top | | | ADN4664BRZ | | VDD1 | Red Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-313137 | FEC 873-1144 | | VDD2 | Red Testpoint | | | TESTPOINT | No | Top | FEC 873-1128 | 20-313137 | FEC 873-1144 |
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