DESCRIPTION

The Microchip Technology Inc. MCP3204/3208 devices are successive approximation 12-bit Analog-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 single-ended inputs. The MCP3208 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 (MCP3204/3208-B) and ±2 LSB (MCP3204/3208-C) versions.

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 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

• 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

MCP3204属于集成电路（IC） > 模数转换器（ADC）。微芯科技股份有限公司制造生产的MCP3204模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。