Overview
The ADN4655BRWZ-RL7, produced by Analog Devices Inc., is a signal isolated, low voltage differential signaling (LVDS) buffer. This device operates at speeds of up to 1.1 Gbps with low jitter, making it suitable for high-speed data transmission applications. It integrates Analog Devices' iCoupler® technology to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers, allowing for drop-in isolation of an LVDS signal chain. The device is available in multiple channel configurations and includes fail-safe mechanisms to ensure reliable operation under various input conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Maximum Data Rate | 1.1 | 1.25 | Gbps | ||
| Propagation Delay | 4 ns | ns | |||
| Random Jitter (RMS) | 2.6 ps | ps | |||
| Peak-to-Peak Total Jitter | 90 ps | ps | At 1.1 Gbps, 223 - 1 PRBS | ||
| Power Supply Ripple Rejection | -75 dBc | dBc | Phase spur level | ||
| Supply Voltage | 2.5 | 3.3 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| ESD Protection | ±8 kV | kV | IEC 61000-4-2 | ||
| Creepage and Clearance | 5.3 mm | mm | Minimum |
Key Features
- High-speed operation up to 1.1 Gbps with low jitter.
- Galvanic isolation using iCoupler® technology.
- Fail-safe output mechanism to ensure Logic 1 on the corresponding LVDS driver output when inputs are floating, shorted, or terminated but not driven.
- Integrated on-chip low dropout (LDO) regulator to provide 2.5 V from an external 3.3 V power supply.
- High common-mode transient immunity: >25 kV/μs.
- Compliance with EN 55022 Class B radiated emissions limits.
- UL, CSA, and VDE regulatory approvals pending.
Applications
- Isolated video and imaging data transmission.
- Analog front-end (AFE) isolation.
- Data plane isolation.
- Isolated high-speed clock and data links.
- Isolated serial peripheral interface (SPI) over LVDS.
Q & A
- What is the maximum data rate of the ADN4655BRWZ-RL7?
The maximum data rate is up to 1.1 Gbps. - What is the typical propagation delay of the ADN4655BRWZ-RL7?
The typical propagation delay is 4 ns. - What is the random jitter (RMS) of the ADN4655BRWZ-RL7?
The random jitter (RMS) is 2.6 ps. - What is the peak-to-peak total jitter at 1.1 Gbps?
The peak-to-peak total jitter is 90 ps at 1.1 Gbps, 223 - 1 PRBS. - What is the power supply ripple rejection of the ADN4655BRWZ-RL7?
The power supply ripple rejection is -75 dBc. - What are the operating temperature range and supply voltage of the ADN4655BRWZ-RL7?
The operating temperature range is -40°C to 125°C, and the supply voltage is 2.5 V or 3.3 V. - What level of ESD protection does the ADN4655BRWZ-RL7 offer?
The device offers ±8 kV ESD protection according to IEC 61000-4-2. - What are the minimum creepage and clearance requirements for the ADN4655BRWZ-RL7?
The minimum creepage and clearance are 5.3 mm. - Does the ADN4655BRWZ-RL7 have any regulatory approvals?
The device has pending approvals from UL, CSA, and VDE. - What are some common applications of the ADN4655BRWZ-RL7?
Common applications include isolated video and imaging data transmission, AFE isolation, data plane isolation, isolated high-speed clock and data links, and isolated SPI over LVDS.
