数字隔离器 3.75kVrms LVDS Iso 600Mbps Dual Tx/Rx
Product Details
The ADN4652 is a signal isolated, low voltage differential signaling LVDS buffers that operate at up to 600 Mbps with very low jitter.
The devices integrate Analog Devices, Inc., iCoupler® technology, enhanced for high speed operation, to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers. This technology allows drop-in isolation of an LVDS signal chain.
Multiple channel configurations are offered, and the LVDS receivers on the ADN4652 include a fail-safe mechanism to ensure a Logic 1 on the corresponding LVDS driver output when the inputs are floating, shorted, or terminated, but not driven.
For high speed operation with low jitter, the LVDS and isolator circuits rely on a 2.5 V supply. An integrated on-chip low dropout regulator LDO can provide the required 2.5 V from an external 3.3 V power supply. The devices are fully specified over a wide industrial temperature range and are available in a 20-lead, wide body SOIC package with 5 kV rms isolation or a 20-lead SSOP package with 3.75 kV rms isolation.
**Applications**
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- Analog front-end AFE isolation
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- Data plane isolation
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- Isolated high speed clock and data links
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- Isolated serial peripheral interface SPI over LVDS
### Features and Benefits
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- 5 kV rms/3.75 kV rms LVDS isolator
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- Complies with TIA/EIA-644-A LVDS standard
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- Multiple dual-channel configurations
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- Up to 600 Mbps switching with low jitter
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- 4.5 ns maximum propagation delay
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- 151 ps maximum peak-to-peak total jitter at 600 Mbps
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- 100 ps maximum pulse skew
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- 600 ps maximum part to part skew
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- 2.5 V or 3.3 V supplies
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- −75 dBc power supply ripple rejection and glitch immunity
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- ±8 kV IEC 61000-4-2 ESD protection across isolation barrier
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- High common-mode transient immunity: >25 kV/μs
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- Passes EN55022 Class B radiated emissions limits with 600 Mbps PRBS
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- Safety and regulatory approvals 20-lead SOIC package
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- UL pending: 5000 V rms for 1 minute per UL 1577
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- CSA Component Acceptance Notice 5A pending
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- VDE certificate of conformity pending
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- DIN V VDE V 0884-10 VDE V 0884-10:2006-12
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- VIORM = 424 V peak
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- Fail-safe output high for open, short, and terminated input conditions
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- Operating temperature range: −40°C to +125°C
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- Choice of package and isolation options
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- 3.75 kV rms in highly integrated 20-lead SSOP
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- 5 kV rms in 20-lead SOIC with 7.8 mm creepage/clearance
