The MCP330X devices are successive approximation 13-bit serial A/D converters with on-board sample and hold circuitry. A simple serial interface compatible with the SPI protocol is utilized for communication with the devices. The devices operate over a broad voltage range of 2.7- to 5.5-volts. Low current design enables operation with maximum standby and active currents of only 1 μA and 450 μA respectively. The reference voltage can be varied from 400 mV to 5 V, yielding input-referred resolution between 97.6 μV and 1.22 mV.
Microchip also offers the MXDEV Analog Evaluation System to assist designers with development of A/D circuits, including the essential tools a designer needs to create a system requiring differential inputs. Software tools provided with the system include real-time oscilloscope and FFT displays.
The MCP330X family is available in several small packages, including the MSOP-8 package. Because of the small size, low power and auto shutdown features, the MCP330X A/D converters are also well suited for a variety of communication and industrial applications.