MCP3208 ADC

MCP3208: 12bit eight channel ADC with SPI interface

The Microchip Technology Inc. MCP3208 devices are successive approximation 12-bit Analog-to-Digital (A/D) Converters with on-board sample and hold circuitry. The MCP32084 is programmable to provide four  pseudo-differential input pairs or eight single-ended inputs. Differential Nonlinearity (DNL) is specified at ±1 LSB, and Integral Nonlinearity (INL) is offered in ±1 LSB (MCP3208B) and ±2 LSB (MCP3208C) versions. Communication with the devices is done using a simple serial interface compatible with the SPI protocol. The devices are capable of conversion rates of up to 100ksps. MCP3208 ADC operates over a broad voltage range (2.7V -5.5V). Low current design permits operation with typical standby and active currents of only 500nA and 320µA, respectively. The MCP3208 is offered in 14-pin PDIP, 150mil SOIC and TSSOP packages.

 Features of MCP3208

• 12-bit resolution

• ± 1 LSB max DNL

• ± 1 LSB max INL (3208-B)

• ± 2 LSB max INL (3208-C)

• 8 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 VDD= 5V

• 50ksps max. sampling rate at VDD= 2.7V

• Low power CMOS technology

• - 500 nA typical standby current, 2µA max.

• - 400 µA max. active current at 5V

• Available in PDIP.

Realted Links

• Download MCP3208 Datasheet