MCP3551/3 DataSheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifLow-Power Single Channel 22-Bit Delta Sigma ADCsThe Microchip Technology Inc. MCP355X devices are 2.7V to 5.5V low-power, 22-bit delta-sigma A/D converters. The devices offer output noise as low as 2.5 µVrms with a total unadjusted error of less than 10 ppm. The family exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP355X devices provide high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP355X devices operate from -40°C to +125°C and are available in the space-saving 8-pin MSOP and SOIC packages.
Parameter NameValue
Typical Supply Current (µA)120
Typical INL (ppm)2
Max Sample Rate (samples/sec)14
Input Type1 Differential
InterfaceSPI
Resolution (bits)22
Supply Voltage Range (V)2.7 to 5.5
Features
22-bit ADC with automatic internal offset and gain calibration
Low output noise 2.5 µVrms
3 µV offset error
2 ppm typical full-scale error
6 ppm maximum INL error
Total unadjusted error less than 10 ppm
Sample rate 13.75 sps
No digital filter settling time, single command conversions through 3-wire SPI™ interface
Low conversion current
100 µA typical (VDD = 2.7V)
120 µA typical (VDD = 5.0V)
8-pin MSOP and SOIC packages
Differential inputs with VSS to VDD common mode range
2.7V to 5.5V single supply operation
Extended temperature range: -40°C to +125°C
推荐MICROCHIP全系列产品推广商：（可申请部分免费样片，资料，大家赶快行动吧！）
授权A级代理商;提供技术支持;提供成熟方案;提供免费样品;提供详细资料！
深圳市英锐恩科技有限公司
联系电话: 0755-88845951 82543411传真：0755-82543511
E-mail: enroo@enroo.com
网址: www.enroo.com （”o”为字母）
公司地址: 福田区深南中路嘉汇新城汇商中心1203-1205
专业为客户提供芯片选型指导、技术咨询、开发工具技术支持、产品开发设计等专业的技术服务。
同时为Microchip全系列芯片代理推广商,分销服务商,专业提供Microchip全系列开发工具及技术支持。
页:
[1]