參數(shù)資料
型號： MCP3422A0T-E/SN
廠商： Microchip Technology
文件頁數(shù)： 26/58頁
文件大小： 0K
描述： IC ADC 18BIT 3.75SPS 2CH 8-SOIC
產(chǎn)品培訓(xùn)模塊： MCP3901 Analog Front End
標準包裝： 3,300
位數(shù)： 18
采樣率（每秒）： 3.75
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)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(yīng)商設(shè)備封裝： 8-SOICN
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 4 個單端，雙極；2 個差分，雙極
配用： MCP3422EV-ND - BOARD EVAL MCP3422 PICKIT SERIAL
其它名稱： MCP3422A0T-E/SNTR
MCP3422/3/4
DS22088C-page 32
2009 Microchip Technology Inc.
6.1.4
DEVICE CONNECTION TEST
The user can test the presence of the MCP3422/3/4 on
the I2C bus line without performing an input data
conversion. This test can be achieved by checking an
acknowledge response from the MCP3422/3/4 after
sending a read or write command. Here is an example
a.
Set the R/W bit “HIGH” in the address byte.
b.
Check the ACK pulse after sending the address
byte.
If the device acknowledges (ACK = 0), then the
device
is
connected,
otherwise
it
is
not
connected.
c.
Send STOP or START bit.
FIGURE 6-3:
I2C Bus Connection Test.
6.1.5
DIFFERENTIAL AND SINGLE-
ENDED CONFIGURATION
Figure 6-4 shows typical connection examples for
differential and single-ended inputs. Differential input
signals can be connected to the CHn+ and CHn- input
pins, where n = the channel number (1, 2, 3, or 4). For
the single-ended input, the input signal is applied to one
of the input pins (typically connected to the CHn+ pin)
while the other input pin (typically CHn- pin) is
grounded. All device characteristics hold for the single-
ended configuration, but this configuration loses one bit
resolution because the input can only stand in positive
FIGURE 6-4:
Differential and Single-
Ended Input Connections.
12
3
4
5
6
7
8
9
SCL
SDA
1
0
1A2 A1 A0 1
Start
Bit
Address Byte
Address bits
Device bits
R/W
Stop
Bit
ACK
Response
MCP342X
(a) Differential Input Signal Connection:
CHn+
CHn-
Input Signal
(b) Single-ended Input Signal Connection:
CHn+
CHn-
Input Signal
Sensor
Excitation
R1
R2
MCP342X
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參數(shù)描述
MCP3422A1-E/MC 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3422A1-E/MF 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:18-Bit, Multi-Channel ???￡ Analog-to-Digital Converter with I2Ca?￠ Interface and On-Board Reference
MCP3422A1-E/MS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3422A1-E/SL 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:18-Bit, Multi-Channel ???￡ Analog-to-Digital Converter with I2Ca?￠ Interface and On-Board Reference
MCP3422A1-E/SN 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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