Analog Devices LTM2894

Description

The LTM®2894 is a complete galvanically-isolated USB 2.0compatible μModule® (micromodule) transceiver.The LTM2894 is ideal for isolation in host, hub, bus splitteror peripheral device applications. It is compatible withUSB 2.0 full speed (12Mbps) and low speed (1.5Mbps)operation. Automatic speed selection configures integratedpull-up resistors on the upstream port to match thosesensed on the downstream device.The isolator μModule technology uses coupled inductorsto provide 7500VRMS of isolation and 17.4mm of creepagebetween the upstream and downstream USB interface.This device is ideal for systems requiring isolated groundreturns or large common mode voltage variations. Uninterruptedcommunication is guaranteed for common modetransients greater than 50kV/μs.Enhanced ESD protection allows this part to withstandup to ±20kV (human body model) on the USB transceiverinterface pins to local supplies and ±20kV through theisolation barrier to supplies without latchup or damage.

Features

Isolated USB Transceiver: 7500VRMS for 1 Minutenn UL-CSA Recognition Pendingnn Reinforced Insulationnn USB 2.0 Full Speed and Low Speed Compatiblenn Auto-Configuration of Bus Speednn 4.4V to 36V VBUS and VBUS2 Operating Rangenn 3.3V LDO Output Supply Signal References VLO andVLO2nn 50kV/μs Common Mode Transient Immunitynn ±20kV HBM ESD: on USB Interface Pinsnn 1414VPEAK Maximum Continuous Working Voltagenn 17.4mm Creepage Distancenn 22mm × 6.25mm Surface Mount BGA

Typical applications

• Isolated USB InterfacesHost, Hub, or Device Isolation
• Industrial/Medical Data Acquisition

More information

• Datasheet
• IC product information