Linear Technology's LTC1966IMS8 Precision RMS-to-DC Converter

The LTC1966IMS8 is a high-precision, micropower RMS-to-DC converter from Linear Technology, which is now part of Analog Devices. This innovative product is designed to offer a robust and accurate solution for converting complex AC signals to their true RMS DC equivalent, making it an essential component for a wide range of applications including industrial, medical, and communication systems.

This device comes in an MSOP-8 package, which is compact and suitable for space-constrained applications. The LTC1966IMS8 utilizes a patented delta-sigma computational technique that allows it to achieve high levels of accuracy and stability over temperature and time. It is capable of measuring input signals from low millivolts up to 1Vrms, with a wide bandwidth that extends from DC to 1kHz, making it versatile for processing various signal types.

One of the key features of the LTC1966IMS8 is its ease of use. It requires no external components for operation, simplifying design and reducing the overall component count in circuits. This not only saves space but also reduces the cost and complexity of the end product. Additionally, the device's low power consumption, typically 160μA, makes it ideal for battery-powered and portable applications where power efficiency is critical.

The LTC1966IMS8 also offers excellent linearity with a typical error of less than 0.1% of the full-scale output, ensuring precise signal representation. Its wide operating temperature range from -40°C to 85°C allows for reliable performance in various environmental conditions.

Furthermore, the device features an automatic shutdown mode that reduces power consumption to just 3μA, providing additional power savings when the converter is not in use. This makes it particularly well-suited for systems that require long-term operation with minimal power draw.

In summary, the LTC1966IMS8 from Linear Technology is a sophisticated, high-accuracy RMS-to-DC converter that offers a combination of performance, simplicity, and power efficiency. Its compact size, precision, and low power consumption make it an excellent choice for designers looking to integrate RMS measurement capabilities into their next generation of electronic products.