Overview
The ISO7821LLDWR from Texas Instruments is a high-performance, reinforced isolated dual-LVDS buffer. This device is part of the ISO782xLL family, designed to provide robust isolation and high electromagnetic immunity. It complies with the TIA/EIA-644-A LVDS standard and is suitable for a wide range of applications requiring reliable and isolated data transmission.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Signaling Rate | Up to 100 | Mbps |
| Supply Voltage Range | 2.25 to 5.5 | V |
| Ambient Temperature Range | –55 to +125 | °C |
| Power Consumption (Typical at 100 Mbps) | 9.5 | mA |
| Propagation Delay (Typical) | 17 | ns |
| CMTI (Minimum) | ±100 | kV/μs |
| Isolation Surge Withstand Voltage | 12800 | VPK |
| Package Options | SOIC-16 Wide Body (DW), SOIC-16 Extra-Wide Body (DWW) | |
| Body Size (Nominal) | 10.30 mm × 7.50 mm (DW), 10.30 mm × 14.00 mm (DWW) |
Key Features
- Complies with TIA/EIA-644-A LVDS standard
- Wide supply range: 2.25 V to 5.5 V
- Wide temperature range: –55°C to +125°C
- Low power consumption: Typical 9.5 mA per channel at 100 Mbps
- Low propagation delay: 17 ns typical
- High electromagnetic immunity and low emissions
- System-level ESD, EFT, and surge immunity
- Isolation barrier life: > 40 years
- Safety-related certifications including DIN V VDE V 0884-10, UL 1577, CSA, IEC 60950-1, and IEC 60601-1
Applications
- Motor Control
- Test and Measurement
- Industrial Automation
- Medical Equipment
- Communication Systems
Q & A
- What is the signaling rate of the ISO7821LLDWR? The signaling rate is up to 100 Mbps.
- What is the supply voltage range for the ISO7821LLDWR? The supply voltage range is from 2.25 V to 5.5 V.
- What is the ambient temperature range for the ISO7821LLDWR? The ambient temperature range is from –55°C to +125°C.
- What is the typical power consumption of the ISO7821LLDWR at 100 Mbps? The typical power consumption is 9.5 mA per channel.
- What is the propagation delay of the ISO7821LLDWR? The propagation delay is 17 ns typical.
- What are the package options for the ISO7821LLDWR? The package options are SOIC-16 Wide Body (DW) and SOIC-16 Extra-Wide Body (DWW).
- What safety-related certifications does the ISO7821LLDWR have? It has certifications including DIN V VDE V 0884-10, UL 1577, CSA, IEC 60950-1, and IEC 60601-1.
- What is the isolation surge withstand voltage of the ISO7821LLDWR? The isolation surge withstand voltage is 12800 VPK.
- What are some typical applications of the ISO7821LLDWR? Typical applications include motor control, test and measurement, industrial automation, medical equipment, and communication systems.
- What is the CMTI (Common Mode Transient Immunity) of the ISO7821LLDWR? The CMTI is ±100 kV/μs.
