Texas Instruments AMC1300BDWVR Precision Isolated Amplifier

The AMC1300BDWVR from Texas Instruments is a high-precision, isolated amplifier designed for voltage and current measurement in power converters and motor drives. This device belongs to the AMC1300 family of reinforced isolation amplifiers that are optimized for the accurate and reliable measurement of voltages and currents in high-voltage systems where isolation is a critical requirement.

This precision amplifier features an innovative isolation barrier that has been certified to provide reinforced galvanic isolation of up to 7 kVPEAK according to VDE V 0884-11 and UL1577 standards. This ensures the safety of the user and the protection of sensitive circuitry in applications that operate at high voltage levels.

The AMC1300BDWVR is characterized by its low offset error and high linearity, with a typical nonlinearity of ±0.1% (max) over the full input range. It also boasts a high signal-to-noise ratio, making it an excellent choice for applications requiring high-accuracy measurements. The device operates over an extended industrial temperature range of –40°C to +125°C, ensuring reliable performance in harsh environments.

With an input voltage range of ±250 mV, this isolated amplifier is well-suited for shunt-resistor-based current sensing in electronic power conversion systems such as motor drives, renewable energy inverters, and power supplies. The AMC1300BDWVR is available in a compact, 8-pin SOIC (DWV) package, making it easy to integrate into space-constrained applications.

Additional features of the AMC1300BDWVR include a high electromagnetic immunity for operation in electrically noisy environments, and a wide supply range of 3.0 V to 5.5 V, which allows for flexible integration into various system designs. The device also includes fail-safe outputs that default to a high state when the input signal is out of range, providing an additional layer of system safety.

Overall, the Texas Instruments AMC1300BDWVR represents a robust solution for designers seeking a reliable and accurate isolated amplifier for their high-voltage measurement needs.