VIA2000SD

Overview

The VIA2000SD is a high-reliability reinforced isolated amplifier utilizing proprietary capacitive isolation technology. It features a single-ended analog input range of 0.02 V to 2 V and provides a differential output with a fixed gain of 1. The device offers a typical common-mode transient immunity (CMTI) of 150 kV/μs, ensuring accurate measurements in noisy environments. Key electrical parameters include a maximum gain error of ±0.3%, a bandwidth of 400 kHz, and an operating temperature range from -40 °C to +125 °C. It incorporates built-in VDD1 monitoring for system diagnostics.

Feature Summary

• High input impedance suitable for HV potential dividers
• Built-in VDD1 undervoltage detection and fail-safe outputs
• Low offset error and drift characteristics
• Reinforced isolation barrier with UL and cUL approvals

Applications

• Bus voltage monitoring
• AC motor controls
• Power and solar inverters
• Uninterruptible power supplies
• Battery management systems

Procurement Notes

Verify the specific package type SOP-8 (300 mil) and ensure compatibility with required isolation ratings before procurement. Confirm that the linear input range aligns with the application's signal levels. Check for any automotive qualification requirements if the design targets automotive standards, as standard versions may not be qualified. Validate supply voltage ranges against the datasheet specifications.

Selection Notes

Select the VIA2000SD when high precision and robust noise immunity are critical. Its wide linear input range accommodates direct sensing across high-voltage potential dividers without external scaling components. The integrated shutdown pin allows for easy system control. Consider the thermal resistance values for PCB layout planning to maintain junction temperatures within safe limits during operation.

Part Context

The VIA2000SD belongs to Vishay's VIA series of isolation amplifiers, designed for demanding industrial and automotive applications. This series emphasizes high reliability and compact size. The component integrates sigma-delta modulation and digital transmission across the isolation barrier, replacing traditional optocoupler-based solutions with superior speed and stability.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.