Low power 22-bit delta-sigma ADC

The MCP3553 is a low power, single channel, 22-bit delta-sigma analog-to-digital converter. This device delivers output noise as low as 2.5 µVRMS with a total unadjusted error of less than 10 ppm. It exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP3553 device provides high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP3553 device operates from -40°C to +125°C and is available in the space-saving 8-pin MSOP andSOIC packages.