The MCP3204-CI/SL is a 4-channel 12-bit Analogue-to-digital Converter (ADC) with on-board sample and hold circuitry. The MCP3204 12-bit analogue-to-digital converter (ADC) combines high performance and low power consumption, making it ideal for embedded control applications. The MCP3204 features a successive approximation register (SAR) architecture and an industry-standard SPI™ serial interface, allowing 12-bit ADC capability to be added to any PICmicro® microcontroller. The MCP3204 features 100k samples/second, 4-input channels, low power consumption (5nA typical standby, 400µA maximum active). Communication with the devices is accomplished using a simple serial interface compatible with the SPI protocol. The devices are capable of conversion rates of up to 100ksp. The MCP3204 device operated over a broad voltage range (2.7 to 5.5V). Low current design permits operation with typical standby and active currents of only 500nA and 320µA, respectively.