Analog Devices,Inc.全球领先的高性能信号处理解决方案供应商,近日推出业界精度最高的隔离式Σ-Δ型调制器AD7403,适合直流/交流功率转换应用中的精密电流和电压测量。隔离式Σ-Δ型调制器AD7403可在78 KSPS速率以及-40°C至+125°C温度范围内实现81-dB的信噪比和信纳比(SINAD)(最小值),比竞争器件高出11dB。较高的信纳比可实现更加精确的电流和电压测量,通过降低电机轴上的转矩波动,提高电机驱动的性能。此外,较高的信纳比 Analog Devices, Inc., a leading global provider of high performance signal processing solutions, today introduced the AD7403, the industry’s highest precision isolated sigma delta modulator, for precision current and voltage measurement in DC / AC power conversion applications. Isolated Σ-Δ Modulator The AD7403 achieves 81-dB signal-to-noise and SINAD (minimum) over the 78 KSPS rate and -40 ° C to + 125 ° C temperature range over competing devices Out of 11dB. Higher SINBs allow for more accurate current and voltage measurements, improving motor drive performance by reducing torque ripple on the motor shaft. In addition, a higher confidence ratio