MCP3008

MCP3004/3008 2.7V 4-Channel/8-Channel 10-Bit A/D Converters with SPI Serial Interface Features 10-bit resolution ± 1 LSB max DNL ± 1 LSB max INL 4 (MCP3004) or 8 (MCP3008) input channels Analog inputs programmable as single-ended or pseudo-differential pairs On-chip sample and hold SPI serial interface (modes 0,0 and 1,1) Single supply operation: 2.7V - 5.5V 200 ksps max. sampling rate at VDD = 5V 75 ksps max. sampling rate at VDD = 2.7V Low power CMOS technology 5 nA typical standby current, 2 µA max. 500 µA max. active current at 5V Industrial temp range: -40°C to +85°C Available in PDIP, SOIC and TSSOP packages Applications Sensor Interface Process Control Data Acquisition Battery Operated Systems Functional Block Diagram VREF VDD VSS CH0 CH1 CH7* Input Channel Max Sample and Hold DAC Comparator 10-Bit SAR Control Logic Shift Register CS/SHDN DIN CLK DOUT * Note: Channels 4-7 are available on MCP3008 Only Description The Microchip Technology Inc. MCP3004/3008 devices are successive approximation 10-bit Analogto-Digital (A/D) converters with on-board sample and hold circuitry. The MCP3004 is programmable to provide two pseudo-differential input pairs or four single-ended inputs. The MCP3008 is programmable to provide four pseudo-differential input pairs or eight single-ended inputs. Differential Nonlinearity (DNL) and Integral Nonlinearity (INL) are specified at ±1 LSB. Communication with the devices is accomplished using...