參數資料
型號: MCP3423-E/UN
廠商: Microchip Technology
文件頁數: 30/58頁
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS 2CH 10-MSOP
產品培訓模塊: MCP3901 Analog Front End
標準包裝: 100
位數: 18
采樣率(每秒): 3.75
數據接口: I²C,串行
轉換器數目: 1
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 10-MSOP
包裝: 管件
輸入數目和類型: 4 個單端,雙極;2 個差分,雙極
產品目錄頁面: 672 (CN2011-ZH PDF)
配用: MCP3423EV-ND - BOARD EVAL 18BIT 2CH ADC MCP3423
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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