- 您现在的位置：买卖IC网 > PDF目录16644 > MCP3421DM-WS (Microchip Technology)BOARD DEMO MCP3421 WEIGHT SCALE PDF资料下载
参数资料
| 型号： | MCP3421DM-WS |
| 厂商： | Microchip Technology |
| 文件页数： | 21/42页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO MCP3421 WEIGHT SCALE |
| 标准包装： | 1 |
| 主要目的： | 参考设计，称量台 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MCP3421，MCP6V07，PIC18F4550 |
| 主要属性： | 2Kg测压元件，灵敏度为1 mV/V |
| 已供物品： | 板，线缆，CD，电源 |
第1页第2页第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页当前第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
MCP3421
DS22003E-page 28
2009 Microchip Technology Inc.
6.1.3
DEVICE COMMUNICATION TEST
The user can test the communication between the
Master (MCU) and the MCP3421 by simply checking
an acknowledge response from the MCP3421 after
sending a read or write command. Here is an example
using Figure 6-3:
a)
Set the R/W bit “LOW” 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 a STOP bit.
FIGURE 6-3:
I2C Bus Communications
Test.
6.1.4
DIFFERENTIAL AND SINGLE-
ENDED CONFIGURATION
Figure 6-4 shows typical connection examples for
differential and single-ended inputs. Differential input
signals are connected to the VIN+ and VIN- input pins.
For the single-ended input, the input signal is applied to
one of the input pins (typically connected to the VIN+
pin) while the other input pin (typically VIN- 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 half scale. Refer to
FIGURE 6-4:
Differential and Single-
Ended Input Connections.
1
2
34
5
6
78
9
SCL
SDA
11
0
1A2 A1 A0 0
Start
Bit
Address Byte
Address bits
ADC Section
R/W
Stop
Bit
AC
K
Response
Device Code
MCP3421
(a) Differential Input Signal Connection:
Input Signal
(b) Single-ended Input Signal Connection:
Input Signal
Sensor
Excitation
R1
R2
VIN+
VIN-
VDD
VIN+
VIN-
VDD
C1
C2
C1
C2
C1 : 0.1 F, Ceramic Capacitor
C2 : 10 F, Tantalum Capacitor
MCP3421
相关PDF资料 |
PDF描述 |
|---|---|
| CB5023-000 | HEAT SHRINK TUBING |
| GCM22DSXS | CONN EDGECARD 44POS DIP .156 SLD |
| HRSR-400FR-10 | HEAT SHRINK TUBING |
| A1CXH-2436G | IDC CABLE - AKC24H/AE24G/X |
| CB5132-000 | HEAT SHRINK TUBING |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP3421E64A0-E/SN | 功能描述:模数转换器 - ADC 18-B delta-sigma ADC Sngl Ch 64kb EEPROM 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 |
| MCP3421EV | 功能描述:数据转换 IC 开发工具 MCP3421 SOT23-6 Eval Board RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MCP3422 | 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 |
| MCP3422A0-E/MC | 功能描述:模数转换器 - ADC 18B delta-sigma ADC dual Ch 4sps 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 |
| MCP3422A0-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 |
发布紧急采购，3分钟左右您将得到回复。