ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The ADN4620/ADN4621 are dual-channel, signal isolated, low voltage differential signaling (LVDS) buffers that operate at up to 2.5 Gbps with very low jitter. The devices integrate iCoupler technology, enhanced for high speed operation to provide drop-in galvanic isolation of LVDS signal chains. AC coupling and/or level shifting to the LVDS receivers and from the LVDS drivers allows isolation of other high speed signals, such as current mode logic (CML).

Features

• 7.5 kV rms/3.75 kV rms LVDS isolators
• Complies with TIA/EIA-644-A LVDS signal levels
• Dual-channel configuration (ADN4620: 2 + 0, ADN4621: 1 + 1)
• Any data rate up to 2.5 Gbps switching with low jitter
• 5 Gbps total bandwidth across two channels
• 2.15 ns typical propagation delay
• Typical jitter: 0.82 ps rms random, 40 ps total peak-to-peak
• Lower power 1.8 V supplies with 3.3 V supplies for I/O
• Up to ±8 kV IEC 61000-4-2 ESD protection across isolation barrier
• High common-mode transient immunity: 70 kV/μs typical
• Safety and regulatory approvals (16-lead SOIC_IC package)
• UL (pending): 7500 V rms for 1 minute per UL 1577
• CSA Component Acceptance Notice 5A (pending)
• VDE certificate of conformity, reinforced insulation (pending)
• DIN V VDE V 0884-11 (VDE V 0884-11):2017-01
• V|0R| = 1500 VPEAK (maximum working insulation voltage)
• Enable or disable refresh (20-lead SSOP package)
• Operating temperature range: -40°C to +125°C
• Compact SSOP package with 5.3 mm creepage or wide SOIC_IC package with 15.1 mm creepage

Applications

• Analog front-end isolation
• Data plane isolation
• Isolated high speed clock and data links
• Multigigabit serialization/deserialization (SERDES)
• PCB-to-PCB optical replacement (for example, short reach fiber)