MCP3221A3T-E/OT MCP3221A4T-E/OT MCP3221A4T-E/OTVAO MCP3221A5T MCP3221A5T-E/OT MCP3221A5T-E/OTVAO MCP3221A5T-I/OT MCP3221A5T-I/OTVAO MCP3221A5T-I_OT MCP3221A6T-E/OT