参数资料
型号: MCP3424-E/ST
厂商: Microchip Technology
文件页数: 30/58页
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS 4CH 14TSSOP
产品培训模块: MCP3901 Analog Front End
标准包装: 96
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: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 管件
输入数目和类型: 8 个单端,双极;4 个差分,双极
产品目录页面: 672 (CN2011-ZH PDF)
配用: MCP3424EV-ND - EVALUATION BOARD FOR MCP3424
MCP3422/3/4
DS22088C-page 36
2009 Microchip Technology Inc.
EQUATION 6-3:
EXPECTED NUMBER OF
OUTPUT CODE FOR
NPP301 PRESSURE
SENSOR
The thermistor temperature sensor can measure the
temperature range from -100°C to 300°C. The
resistance of the thermistor sensor decreases as
temperature
increases
(negative
temperature
coefficient). As shown in Figure 6-7, the thermistor (R2)
forms a voltage divider with R1.
The thermistor sensor is simple to use and widely used
for the temperature measurement applications. It has
both linear and non-linear responses over temperature
range. R1 is used to adjust the linear region of interest
for measurement.
Expected
log
2
100 mV
15.625
μV
PGA
------------------------
= 12.64 bits for PGA = 1
= 13.64 bits for PGA = 2
= 14.64 bits for PGA = 4
= 15.64 bits for PGA = 8
Number of Output Code =
Where:
1 LSB
=
15.625 V with 18 Bit configuration.
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