ISOUSB211-Q1 is a galvanically-isolated USB 2.0 compliant repeater supporting low speed (1.5Mbps), full speed (12Mbps) and high speed (480Mbps) signaling rates. The device supports automatic connect and speed detection, reflection of pullups/pulldowns, and link power management, allowing drop-in USB hub, host, peripheral, and cable isolation. The device also supports automatic role reversal. If, after disconnect, a new connect is detected on the Upstream facing port, then the Upstream and Downstream port definitions are reversed. This feature enables the device to support USB On-The-Go (OTG) and Type-C Dual Role Port (DRP) implementations. The ISOUSB211-Q1 has inbuilt programmable equalization to cancel signal loss caused by board traces, which helps in meeting USB2.0 high-speed TX and RX eye-diagram templates. This device uses a silicon dioxide (SiO2) insulation barrier with a withstand voltage of up to 5700VRMS and a working voltage of 1500VRMS. Used in conjunction with isolated power supplies, the device protects against high voltage and prevents noise currents from the bus from entering the local ground. The ISOUSB211-Q1 device is available for reinforced isolation. The device supports a wide ambient temperature range of –40°C to +125°C. The device is available in the small foot-print SSOP-28 (28-DP) package.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ISOUSB211-Q1 High/Full/Low Speed Isolated USB Repeater datasheet (Rev. B) | PDF | HTML | Jul 9, 2026 |
| Certificate | VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) | Jul 15, 2026 | ||
| Functional safety information | ISOUSB211-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | Jul 1, 2026 | |
| Certificate | TUV Certificate for Isolation Devices (Rev. M) | May 7, 2026 | ||
| Certificate | UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) | May 7, 2026 | ||
| Certificate | CSA Certificate for ISOUSB211xDP (Rev. B) | Jan 8, 2026 | ||
| Certificate | CQC Certificate for ISOUSB211xDP (Rev. B) | Aug 19, 2025 | ||
| Certificate | CQC Certificate for ISOxxDWx (Rev. K) | Aug 18, 2025 | ||
| Application note | Compensate for Channel Loss with Equalizer Settings on High-Speed USB Isolators | PDF | HTML | Jan 24, 2022 | |
| Application brief | Protect your Designs with Low-Emissions USB 2.0 Compliant 480 Mbps Isolators | PDF | HTML | Dec 20, 2021 |
For additional terms or required resources, click any title below to view the detail page where available.
The ISOUSB211DW evaluation module (EVM) is a paltform for developing the high-performance, 5000VRMS, reinforced isolated USB repeater in a 28-pin SSOP (DP-29). The EVM features enough test points and jumper options to enable evaluation of the device with minimal external components.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DP) | 28 | Ultra Librarian |
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