參數(shù)資料
型號(hào)： MCP3425A0T-E/CH
廠商： Microchip Technology
文件頁(yè)數(shù)： 36/38頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT I2C PROGBL SOT23-6
產(chǎn)品培訓(xùn)模塊： MCP3901 Analog Front End
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 16
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： SOT-23-6
供應(yīng)商設(shè)備封裝： SOT-23-6
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 2 個(gè)單端，雙極；1 個(gè)差分，雙極
產(chǎn)品目錄頁(yè)面： 672 (CN2011-ZH PDF)
配用： MCP3425EV-ND - EVALUATION BOARD FOR MCP3425
其它名稱： MCP3425A0T-E/CHDKR
2009 Microchip Technology Inc.
DS22072B-page 7
MCP3425
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
3.1
Analog Inputs (VIN+, VIN-)
VIN+ and VIN- are differential signal input pins. The
MCP3425 device accepts a fully differential analog
input signal which is connected on the VIN+ and VIN-
input pins. The differential voltage that is converted is
defined by VIN = (VIN+ - VIN-) where VIN+ is the voltage
applied at the VIN+ pin and VIN- is the voltage applied
at the VIN- pin. The input signal level is amplified by the
programmable
gain
amplifier
(PGA)
before
the
conversion. The differential input voltage should not
exceed an absolute of (VREF/PGA) for accurate
measurement, where VREF is the internal reference
voltage (2.048V) and PGA is the PGA gain setting. The
converter output code will saturate if the input range
exceeds (VREF/PGA).
The absolute voltage range on each of the differential
input pins is from VSS-0.3V to VDD+0.3V. Any voltage
above or below this range will cause leakage currents
through the Electrostatic Discharge (ESD) diodes at
the input pins. This ESD current can cause unexpected
performance of the device. The common mode of the
analog inputs should be chosen such that both the
differential analog input range and the absolute voltage
range on each pin are within the specified operating
range
defined
in
3.2
Supply Voltage (VDD, VSS)
VDD is the power supply pin for the device. This pin
requires an appropriate bypass capacitor of about
0.1 F (ceramic) to ground. An additional 10 F
capacitor (tantalum) in parallel is also recommended
to further attenuate high frequency noise present in
some application boards. The supply voltage (VDD)
must be maintained in the 2.7V to 5.5V range for
specified operation.
VSS is the ground pin and the current return path of the
device. The user must connect the VSS pin to a ground
plane through a low impedance connection. If an
analog ground path is available in the application PCB
(printed circuit board), it is highly recommended that
the VSS pin be tied to the analog ground path or
isolated within an analog ground plane of the circuit
board.
3.3
Serial Clock Pin (SCL)
SCL is the serial clock pin of the I2C interface. The
MCP3425 acts only as a slave and the SCL pin
accepts only external serial clocks. The input data
from the Master device is shifted into the SDA pin on
the rising edges of the SCL clock and output from the
MCP3425 occurs at the falling edges of the SCL clock.
The SCL pin is an open-drain N-channel driver.
Therefore, it needs a pull-up resistor from the VDD line
to the SCL pin. Refer to Section 5.3 “I2C Serial Com-
munications” for more details of I2C Serial Interface
communication.
3.4
Serial Data Pin (SDA)
SDA is the serial data pin of the I2C interface. The SDA
pin is used for input and output data. In read mode, the
conversion result is read from the SDA pin (output). In
write mode, the device configuration bits are written
(input) though the SDA pin. The SDA pin is an open-
drain N-channel driver. Therefore, it needs a pull-up
resistor from the VDD line to the SDA pin. Except for
start and stop conditions, the data on the SDA pin must
be stable during the high period of the clock. The high
or low state of the SDA pin can only change when the
clock signal on the SCL pin is low. Refer to Section 5.3
“I2C Serial Communications” for more details of I2C
Serial Interface communication.
MCP3425
Symbol
Definition
SOT-23-6
1VIN+
Positive Differential Analog Input Pin
2VSS
Ground Pin
3SCL
Serial Clock Input Pin of the I2C Interface
4SDA
Bidirectional Serial Data Pin of the I2C Interface
5VDD
Positive Supply Voltage Pin
6VIN-
Negative Differential Analog Input Pin
相關(guān)PDF資料
PDF描述
MCP3427-E/MF IC ADC 16BIT I2C PROGBL 10-DFN
MCP3550T-60E/MS IC ADC 22BIT 2.7V 1CH 8MSOP
MCP6541RT-I/OT IC COMP 1.6V PUSH-PULL SOT23-5
MCP6546UT-I/LT IC COMP 1.6V SNGL O-D SC70-5
MCP6561UT-E/OT IC COMP PUSH-PULL 1.8V SOT23-5
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP3425A1T-E/CH 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18bit deltasigma ADC single channel, 4sps 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
MCP3425A1TECH 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference
MCP3425A2T-E/CH 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18bit deltasigma ADC single channel, 4sps 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
MCP3425A2TECH 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference
MCP3425A3T-E/CH 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18bit deltasigma ADC single channel, 4sps 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*