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MCP3204 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP3204 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 20 page  © 1999 Microchip Technology Inc. Preliminary DS21298B-page 1 MCP3204/3208 FEATURES • 12-bit resolution • ± 1 LSB max DNL • ± 1 LSB max INL (MCP3204/3208-B) • ± 2 LSB max INL (MCP3204/3208-C) • 4 (MCP3204) or 8 (MCP3208) 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 • 100ksps max. sampling rate at V DD = 5V • 50ksps max. sampling rate at V DD = 2.7V • Low power CMOS technology - 500 nA typical standby current, 2µA max. - 400 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 DESCRIPTION The Microchip Technology Inc. MCP3204/3208 devices are successive approximation 12-bit Ana- log-to-Digital (A/D) Converters with on-board sample and hold circuitry. The MCP3204 is programmable to provide two pseudo-differential input pairs or four sin- gle-ended inputs. The MCP3208 is programmable to provide four pseudo-differential input pairs or eight sin- gle-ended inputs. Differential Nonlinearity (DNL) is specified at ±1 LSB, and Integral Nonlinearity (INL) is offered in ±1 LSB (MCP3204/3208-B) and ±2 LSB (MCP3204/3208-C) versions. Communication with the devices is done using a simple serial interface compat- ible with the SPI protocol. The devices are capable of conversion rates of up to 100ksps. The MCP3204/3208 devices operate over a broad voltage range (2.7V - 5.5V). Low current design permits operation with typi- cal standby and active currents of only 500nA and 320µA, respectively. The MCP3204 is offered in 14-pin PDIP, 150mil SOIC and TSSOP packages, and the MCP3208 is offered in 16-pin PDIP and SOIC pack- ages. PACKAGE TYPES FUNCTIONAL BLOCK DIAGRAM V DD CLK D OUT 1 2 3 4 14 13 12 11 10 9 8 5 6 7 V REF D IN CH0 CH1 CH2 CH3 CS/SHDN DGND AGND NC V DD CLK D OUT 1 2 3 4 16 15 14 13 12 11 10 9 5 6 7 8 V REF D IN CS/SHDN DGND CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 NC AGND PDIP, SOIC, TSSOP PDIP, SOIC Comparator Sample and Hold 12-Bit SAR DAC Control Logic CS/SHDN V REF V SS V DD CLK D OUT Shift Register CH0 Channel Mux Input CH1 CH7* *Note: Channels 5-7 available on MCP3208 Only D IN 2.7V 4-Channel/8-Channel 12-Bit A/D Converters with SPI® Serial Interface |
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