ایزولاتور ایزولاتور دیجیتال

ADI LTM2885CY#PBF

Manufacturer	ADI
Mfr. Part Number	LTM2885CY#PBF
Electland Part Code	176507
Electland Part Number	NYE_LTM2885CY#PBF
Category	Digital Isolators
Description	RS422, RS485 Digital Isolator 6500Vrms 2 Channel 20Mbps 50kV/µs CMTI 42-BBGA
Datasheet	Download

Product Attributes

Category	Isolators Digital Isolators
Technology	Magnetic Coupling
type	RS422, RS485
Isolated Power	Yes
Number of Channels	2
Inputs - Side 1/Side 2	1/1
Channel Type	Unidirectional
Voltage - Isolation	6500Vrms
Common Mode Transient Immunity (Min)	50kV/µs
Data Rate	20Mbps
Rise / Fall Time (Typ)	4ns, 4ns
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	42-BBGA
Supplier Device Package	42-BGA (22x9)
Features	Built-in power transformer;Fail-safe circuit;Low-power standby
CMTI(kV/us)	50kV/us
Isolation Voltage(Vrms)	6500
Data Rate(Max)	20Mbps
Communication Mode	Full-Duplex
Packaging	BGA-42
Tariff Active	True
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	3 (168 Hours)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0070
Weight	0.5g

Introduction

The LTM2885 is a complete galvanically isolated full-duplex RS485/RS422 µModule (micromodule) transceiver. No external components are required. A single supply powers both sides of the interface through an integrated, isolated, low noise, efficient 5V output DC/DC converter. Coupled inductors and an isolation power transformer provide 6500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken allowing for large common mode voltage variation. Uninterrupted communication is guaranteed for common mode transients up to 50kV/μs. Maximum data rates are 20Mbps or 250kbps in slew limited mode. Transmit data, DI, and receive data, RO, are implemented with event driven low jitter processing. The receiver has a one-eighth unit load supporting up to 256 nodes per bus. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.