Vishay Semiconductor - Opto Division

High-Thermal-Stability Isolation Amplifiers

Vishay amplifiers are designed to deliver exceptional thermal stability and precise measurement capabilities

Image of Vishay Semi Opto High Thermal Stability Isolation AmplifierVishay isolation amplifiers offer enhanced performance for a wide range of industrial, automotive, and medical applications where high precision, reliability, and compact size are critical. The VIA series of isolation amplifiers are designed to deliver exceptional thermal stability and precise measurement capabilities. Each amplifier features a low offset error and drift, reinforced isolation, and built-in diagnostics for simplified precision current and voltage measurements. Built-in common mode voltage detection prevents failures in current and voltage measurement applications, making these amplifiers particularly suited for demanding applications where reliability is paramount. This series is designed to be compatible with Vishay WSBE high TCR shunts.

Features
  • High typical common-mode transient immunity (CMTI) to 150 kV/μs
    • Provides robust performance even in harsh environments, such as in heavy-duty motor applications
  • Low gain error of ±0.05% and minimal gain drift of 15 ppm/°C
    • Ensures calibration-free, precise measurements over time and temperature
  • High bandwidth of up to 400 kHz enables faster measurements compared to traditional opto-based isolation amplifiers
  • Wide temperature range: -40°C to +125°C
  • Based on proprietary capacitive isolation technology
  • Differential input voltage:
    • 50 mV (VIA0050DD): ideal for precision isolated current measurements in space-constrained applications
    • 250 mV (VIA0250DD): allows for isolated current as well as voltage measurements
    • 0.02 V to 2 V (VIA2000SD): enables precise isolated voltage measurements for applications such as bus voltage monitoring and UPS
  • High signal-to-noise ratio (SNR) of 70 dB, ideal for high-fidelity signal transmission in complex environments
Applications
  • Precision isolated current and voltage measurements for bus voltage monitoring, AC motor controls, power and solar inverters, and UPS
  • High-voltage potential dividers and precision shunts
  • Industrial motor drives
  • Renewable energy systems
  • Critical power systems

High Thermal Stability Isolation Amplifiers

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
HIGH THERMAL STABILITY ISOLATIONVIA0050DDHIGH THERMAL STABILITY ISOLATION2000 - Immediate$30.79View Details
HIGH THERMAL STABILITY ISOLATIONVIA0250DDHIGH THERMAL STABILITY ISOLATION1999 - Immediate$30.79View Details
HIGH THERMAL STABILITY ISOLATIONVIA2000SDHIGH THERMAL STABILITY ISOLATION1988 - Immediate$30.79View Details
Published: 2025-06-05