AFE with two 24-bit ADCs has best accuracy

The MCP3911 AFE features two 24-bit delta-sigma ADCs that operate at 3 V with industry-leading accuracy of 94.5-dB SINAD and 106.5-dB THD. This device enables better energy-metering and power-monitoring performance.

Four different power modes offers the flexibility of enabling either extremely low-power designs, to 0.8 mA per channel, or designs for higher-speed signals and harmonic content. Features 2.7 to 3.6-V analog and digital operation, which simplifies the interface by running off of the same power rail as the microcontroller. Housed in a 20-pin SSOP and QFN packages, the part operates from –40° to 125°C. It also has an internal, low-temperature-coefficient voltage reference and PGAs. (From $1.40 to $1.43 ea/5,000 — available now.)

By Christina Nickolas

Microchip Technology , Chandler , AZ
Sales 480-792-7200
www.microchip.com