The Microchip MCP3421A0T-E/CH is an 18-bit delta-sigma analog-to-digital converter (ADC) with single channel and 4sps. It offers a high performance, low power, and cost-effective solution that is ideal for low sample rate applications such as portable medical, water and gas metering, and industrial control systems. This ADC features an on-board precision voltage reference, programmable gain amplifier (PGA), and an improved signal-to-noise ratio. Other features include low current consumption of only 200µA, 2mV input offset voltage, and a maximum sampling rate of 4 samples per second. Additionally, the MCP3421A0T-E/CH offers an internal oscillator for stable conversions as well as a user selectable conversion resolution (18-bit or 16-bit). By providing an accurate and reliable analog-to-digital conversion in a robust and low-power package, the MCP3421A0T-E/CH is the ideal ADC solution for a wide range of applications.