MCP3421A3T-E/CH IC-3421A3T 18BIT SIGMA-DELTA SOT23-6 The MCP3421A3T-E/CH is a high-quality product offering IC-3421A3T 18BIT SIGMA-DELTA SOT23-6. With a shrink ratio of N/A and -40°C~+125°C operating temperature, it provides reliability in various applications.