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MCP3008T Datasheet(PDF) 1 Page - Microchip Technology |
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MCP3008T Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 40 page  © 2008 Microchip Technology Inc. DS21295D-page 1 MCP3004/3008 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 Description The Microchip Technology Inc. MCP3004/3008 devices are successive approximation 10-bit Analog- to-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 a simple serial interface compatible with the SPI protocol. The devices are capable of conversion rates of up to 200 ksps. The MCP3004/3008 devices operate over a broad voltage range (2.7V - 5.5V). Low-current design permits operation with typical standby currents of only 5 nA and typical active currents of 320 µA. The MCP3004 is offered in 14-pin PDIP, 150 mil SOIC and TSSOP packages, while the MCP3008 is offered in 16- pin PDIP and SOIC packages. Package Types Comparator Sample and Hold 10-Bit SAR DAC Control Logic CS/SHDN VREF VSS VDD CLK DOUT Shift Register CH0 Channel Max Input CH1 CH7* * Note: Channels 4-7 are available on MCP3008 Only DIN VDD CLK DOUT 1 2 3 4 14 13 12 11 10 9 8 5 6 7 VREF DIN CH0 CH1 CH2 CH3 CS/SHDN DGND AGND NC VDD CLK DOUT 1 2 3 4 16 15 14 13 12 11 10 9 5 6 7 8 VREF DIN CS/SHDN DGND CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 NC AGND PDIP, SOIC, TSSOP PDIP, SOIC 2.7V 4-Channel/8-Channel 10-Bit A/D Converters with SPI Serial Interface |
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