VIA0050DD

Overview

The VIA0050DD is a high-performance differential output isolated amplifier based on proprietary capacitive isolation technology, designed for shunt-based current sensing. It features a linear differential input range of ±50 mV and a fixed gain of 41 V/V. The device provides a minimum common-mode transient immunity (CMTI) of 100 kV/μs and an operating bandwidth of 250 kHz. Key electrical characteristics include a typical gain error of ±0.05%, a gain drift of 15 ppm/°C, and an input offset voltage of ±10 mV. It operates within a supply voltage range of 3.0 V to 5.5 V on both sides and supports an ambient temperature range from -40 °C to +125 °C.

Feature Summary

• Proprietary capacitive isolation technology providing high thermal stability and precision measurement capabilities
• Integrated inbuilt common-mode overvoltage detection and fail-safe output functionality for enhanced system reliability
• Low offset drift and low gain drift ensuring accurate measurements across the entire specified temperature range without calibration

Applications

• Isolated current measurement in motor control applications
• Power supplies and charging stations
• Solar and wind energy storage systems
• EV powertrain and battery management systems
• Inverter and converter circuits

Procurement Notes

Verify that the specific order quantity aligns with the standard shipping pack quantity of 1000 units per reel as defined in the ordering information table. Confirm that the SOP-8 package dimensions meet the mechanical constraints of the target PCB layout. Ensure that the required moisture sensitivity level and reflow soldering profiles are compatible with the manufacturing process specifications.

Selection Notes

Select this component when a narrow ±50 mV differential input range is sufficient for the shunt resistor application. The fixed gain of 41 V/V determines the maximum output swing relative to the input signal. Consider the 250 kHz bandwidth and 100 kV/μs CMTI requirements for noisy environments. Verify that the 3.0 V to 5.5 V dual-supply requirement fits the system power architecture.

Part Context

The VIA0050DD belongs to the Vishay VIA series of high-reliability isolation amplifiers. This family includes variants such as the VIA0250DD and VIA2000SD, which offer wider input ranges or higher bandwidths. All devices in the series utilize similar capacitive isolation technology but are optimized for different signal amplitude and speed requirements in industrial and automotive sectors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Contact local sales representatives for automotive qualification details or alternative product recommendations if specific performance parameters differ from the VIA0050DD specifications.