參數(shù)資料
型號： MCP3426A0-E/SN
廠商： Microchip Technology
文件頁數(shù)： 25/56頁
文件大?。?/td> 0K
描述： IC ADC 16BIT I2C PROGBL 8-SOIC
產品培訓模塊： MCP3901 Analog Front End
標準包裝： 100
位數(shù)： 16
采樣率（每秒）： 15
數(shù)據(jù)接口： I²C，串行
轉換器數(shù)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： 8-SOIC（0.154"，3.90mm 寬）
供應商設備封裝： 8-SOICN
包裝： 管件
輸入數(shù)目和類型： 2 個差分，單極
產品目錄頁面： 672 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS22226A-page 31
MCP3426/7/8
6.2
Application Examples
The MCP3426/7/8 devices can be used for broad
ranges of sensor and data acquisition applications.
Figure 6-5 shows a circuit example measuring both the
battery voltage and current using the MCP3426 device.
Channels 1 and 2 are measuring the voltage and the
current, respectively.
When the input voltage is greater than the internal
reference voltage (VREF = 2.048V), it needs a voltage
divider circuit to prevent the output code from being
saturated. In the example, R1 and R2 form a voltage
divider. The R1 and R2 are set to yield VIN to be less
than the internal reference voltage (VREF = 2.048V).
For the current measurement, the device measure the
voltage across the current sensor, and converts it by
dividing the measured voltage by a known resistance
value. The voltage drops across the sensor is waste.
Therefore, the current measurement often prefers to
use a current sensor with smaller resistance value,
which, in turn, requires high resolution ADC device.
The device can measure the input voltage as low as
7.8 V range (or current in ~ A range) with 16 bit
resolution and PGA = 8 settings.
The MSB (= sign bit) of the output code determines the
direction of the current, which identifies the charging or
the discharging current.
FIGURE 6-5:
Battery Voltage and Charging/Discharging Current Measurement.
5k
Ω
VDD
VSS
0.1 F
10 F
TO MCU
(MASTER)
SCL
SDA
5k
Ω
CH2+
SCL
CH2-
R1
R2
Battery
(Rechargeable)
2
3
4
5
6
7
CH1-
SDA
1
8
CH1+
VDD
Current Sensor
To Load
To Battery
Discharging Current
Charging
Current
R1 and R2 = Voltage Divider
V
IN
R
2
R
1
R
2
+
------------------
V
BAT
×
=
VIN
MCP3426
VBAT
相關PDF資料
PDF描述
VI-BWR-MY-B1 CONVERTER MOD DC/DC 7.5V 50W
VE-J4Y-MX-F2 CONVERTER MOD DC/DC 3.3V 49.5W
VI-BWP-MY-B1 CONVERTER MOD DC/DC 13.8V 50W
MCP3201-CI/ST IC ADC 12BIT 2.7V 1CH SPI 8TSSOP
VI-BWN-MY-B1 CONVERTER MOD DC/DC 18.5V 50W
相關代理商/技術參數(shù)
參數(shù)描述
MCP3426A0T-E/MC 功能描述:模數(shù)轉換器 - ADC 16-bit delta-sigma ADC dual chan 15sps RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3426A0T-E/MS 功能描述:模數(shù)轉換器 - ADC 16-bit delta-sigma ADC dual chan 15sps RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3426A0T-E/SN 功能描述:模數(shù)轉換器 - ADC 16-bit delta-sigma ADC dual chan 15sps RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3426A1-E/MC 功能描述:模數(shù)轉換器 - ADC 18bit deltasigma ADC single channel, 4sps RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3426A1-E/MS 功能描述:模數(shù)轉換器 - ADC 18bit deltasigma ADC single channel, 4sps RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*