Si89xx Isolated Amplifier and Delta-Sigma Modulators
26 November, 2023
Skyworks announced the availability of its next-generation Si89xx isolated analog amplifiers, voltage sensors and delta-sigma modulator (DSM) devices to improve charging times for electric vehicles (EVs)
Skyworks Solutions announced the availability of its next-generation Si89xx isolated analog amplifiers, voltage sensors and delta-sigma modulator (DSM) devices to improve charging times for electric vehicles (EVs). Skyworks’ new family, which includes Si8921, Si893x and Si894x, will help to shorten recharge time for EVs. and offers broader industry applications and improvements for solar inverters and wireless charging.
Thsse devices provide accurate isolated current and voltage measurement with very low drift across temperature. Based on robust isolation technology, the new Si89xx family provides flexible voltage, current, output and package options to help developers reduce BOM cost and shrink board space for a wide range of industrial and green-energy applications including electric vehicle (EV) battery management and charging systems, dc-dc converters, and motor, solar and wind turbine inverters. Early customer interest has been exceptional with hundreds of customers sampled and design wins across top automotive EV and industrial customers.
Si89xx products provide accurate, precise measurement readings of the current and voltage involved in the operation of power control systems, including 75 kV/µs immunity to fast transients and accuracy over temperature. This minimizes loss of power and makes the system more efficient, allowing for charging devices to more swiftly transfer power. This enables charging improvements for the EVs and industrial applications such as wireless infrastructure, data centers and wired communications.
Skyworks’ Si89xx consists of the Si8921 isolated analog amplifiers, the Si893x isolated voltage sensors and the Si8941/6/7 isolated DSM devices. These devices are optimized for voltage or shunt-current sensing and provide typical offset error as low as ±40 µV and ±0.1% gain error. Additionally, offering a typical offset drift as low as ±0.5 µV/˚C and typical gain drift as low as –4 ppm/˚C, allows for exceptional accuracy across temperature. As a result, Si89xx devices can offer one of the industry’s highest signal-to-noise ratios (SNR) – up to 90 dB.
The Si89xx family offers the following options:
- Current or voltage-optimized devices with single-ended, differential or DSM output
- ±62.5 mV, ±250 mV or 2.5 V input ranges
- A stretched wide-body SOIC-8 package to support 5 kVrms isolation and 8 mm creepage/clearance and a compact narrow-body SOIC-8 to support 2.5 kVrms isolation.
Skyworks is represented and supported in Israel by Elina Electronic Engineering Group.
For more information contact:
email@example.com , +972-54-7559692