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

MCP3208屬于集成電路（IC） > 模數(shù)轉換器（ADC）。微芯科技股份有限公司制造生產(chǎn)的MCP3208模數(shù)轉換器（ADC）模數(shù)轉換器（ADC、A/D 或 A 轉 D）對模擬信號進行采樣，例如由麥克風采集的聲音或傳感器的輸出，然后將其轉換為數(shù)字信號。一般來說，數(shù)字輸出是二進制補碼二進制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉換器數(shù)和架構（例如自適應增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。