参数资料
型号: MCP3421A0T-E/OT
厂商: Microchip Technology
文件页数: 30/30页
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS 1CH SOT23-6
标准包装: 1
位数: 18
采样率(每秒): 3.75
数据接口: I²C,串行
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
输入数目和类型: 2 个单端,双极;1 个差分,单极
配用: MCP3421EV-ND - BOARD EVAL FOR MCP3421 SOT23-6
其它名称: MCP3421A0T-E/OTDKR
2006 Microchip Technology Inc.
DS22003B-page 9
MCP3421
4.8
Aliasing and Anti-aliasing Filter
Aliasing occurs when the input signal contains time-
varying signal components with frequency greater than
half the sample rate. In the aliasing conditions, the
device can output unexpected output codes. For
applications that are operating in electrical noise
environments, the time-varying signal noise or high
frequency interference components can be easily
added to the input signals and cause aliasing. Although
the MCP3421 device has an internal first order sinc
filter, its’ filter response may not give enough
attenuation to all aliasing signal components. To avoid
the aliasing, an external anti-aliasing filter, which can
be accomplished with a simple RC low-pass filter, is
typically used at the input pins. The low-pass filter cuts
off the high frequency noise components and provides
a band-limited input signal to the MCP3421 input pins.
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MCP3421A1T-E/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference
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MCP3421A2T-E/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference
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