- 您现在的位置：买卖IC网 > PDF目录10473 > MCP3422A0T-E/MC (Microchip Technology)IC ADC 18BIT 3.75SPS 2CH 8-DFN PDF资料下载
参数资料
| 型号： | MCP3422A0T-E/MC |
| 厂商： | Microchip Technology |
| 文件页数： | 3/58页 |
| 文件大小： | 0K |
| 描述： | IC ADC 18BIT 3.75SPS 2CH 8-DFN |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 3,300 |
| 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： | 8-VFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（2x3） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，双极；2 个差分，双极 |
| 配用： | MCP3422EV-ND - BOARD EVAL MCP3422 PICKIT SERIAL |
| 其它名称： | MCP3422A0T-E/MCTR |
第1页第2页当前第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页
2009 Microchip Technology Inc.
DS22088C-page 11
MCP3422/3/4
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 (CHn+, CHn-)
CHn+ and CHn- are differential input pins for
channel n. The user can also connect CHn- pin to VSS
for a single-ended operation. See Figure 6-4 for
differential and single-ended connection examples.
The maximum voltage range on each differential input
pin is from VSS-0.3V to VDD+0.3V. Any voltage below or
above 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 input voltage at the input pins should
be within the specified operating range defined in
and
See Section 4.5 “Input Voltage Range” for more
details of the input voltage range.
Figure 3-1 shows the input structure of the device. The
device uses a switched capacitor input stage at the
front end. CPIN is the package pin capacitance and
typically about 4 pF. D1 and D2 are the ESD diodes.
CSAMPLE is the differential input sampling capacitor.
3.2
Supply Voltage (VDD, VSS)
VDD is the power supply pin for the device. This pin
requires an appropriate bypass ceramic capacitor of
about 0.1 F to ground to attenuate high frequency
noise presented in application circuit board. An
additional 10 F capacitor (tantalum) in parallel is also
recommended to further attenuate current spike
noises. 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.
MCP3422
MCP3423
MCP3424
Sym
Description
DFN
MSOP,
SOIC
DFN
MSOP
SOIC,
TSSOP
1
CH1+
Positive Differential Analog Input Pin of Channel 1
2
CH1-
Negative Differential Analog Input Pin of Channel 1
7
4
3
CH2+
Positive Differential Analog Input Pin of Channel 2
8
5
4
CH2-
Negative Differential Analog Input Pin of Channel 2
66
3
5
VSS
Ground Pin
33
6
VDD
Positive Supply Voltage Pin
4
7
SDA
Bidirectional Serial Data Pin of the I2C Interface
5
8
SCL
Serial Clock Pin of the I2C Interface
——
9
Adr0
—
10
Adr1
—
11
CH3+
Positive Differential Analog Input Pin of Channel 3
—
12
CH3-
Negative Differential Analog Input Pin of Channel 3
—
13
CH4+
Positive Differential Analog Input Pin of Channel 4
—
14
CH4-
Negative Differential Analog Input Pin of Channel 4
9
—
11
—
EP
Exposed Thermal Pad (EP); must be connected to
VSS.
相关PDF资料 |
PDF描述 |
|---|---|
| MS27508E12F3P | CONN RCPT 3POS BOX MNT W/PINS |
| PD3FRA1 | CONN FEMALE 3COND RT ANG PC/SLD |
| VE-25W-IW-F2 | CONVERTER MOD DC/DC 5.5V 100W |
| MS27508E12B3P | CONN RCPT 3POS BOX MNT W/PINS |
| MS27508E12A3P | CONN RCPT 3POS BOX MNT W/PINS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP3422A1-E/MC | 功能描述:模数转换器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MCP3422A1-E/MF | 制造商:MICROCHIP 制造商全称: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:模数转换器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MCP3422A1-E/SL | 制造商:MICROCHIP 制造商全称: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:模数转换器 - ADC MULTI-CHANNEL 18 BIT DEL SIG A/D CONVERT RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
发布紧急采购，3分钟左右您将得到回复。