MCP3427-E/UN

MCP3427-E/UN is a two channel low-noise, high accuracy delta-sigma A/D converter with differential inputs and up to 16 bits of resolution. The on-board precision 2.048V reference voltage enables an input range of ±2.048V differentially. The device uses a two-wire IC™ compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. The MCP3427 device performs conversions at rates of 15, 60 or 240 samples per second depending on user controllable configuration bit settings using the two-wire I2C™ compatible serial interface. The IC address is user configurable with two address selection pins. This device has an onboard programmable gain amplifier (PGA). User can select the PGA gain of x1, x2, x4, or x8 before the analogue-to-digital conversion takes place. This allows the MCP3427 device to convert a smaller input signal with high resolution.

• 16-bit sigma delta ADC with differential inputs
• Differential input full scale range from -VREF to +VREF
• Self calibration of internal offset and gain per each conversion
• INL: 10ppm of full scale range
• One-shot or continuous conversion options
• Low current consumption
• On-board oscillator
• I2C™ interface
• Extended temperature range from -40°C to +125°C
• Available in 10 pin MSOP package