Upgraded version ADS1256 24-bit ADC AD module High precision acquisition Data card | Инструменты

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                                       虚拟数据采集方案：                                

可以提供Labview，Qt，C#，C/C++源码，利用USB2SPI适配器可以将数据实时传输到PC。

                                             芯片简介：                                    

                                 升级版板简介：                                        

 

1. Power input terminal, the upper end is ground and the lower end is +5V. 2.LT3461 power chip, high ripple noise rejection ratio. 3. Power indicator. 4.LP2985, LDO can effectively filter out low frequency noise, produce a very pure +5V, provide analog power for ASD1256. 5. ADR431BRZ, B series is a high precision reference. The reference chip produces a high precision 2.500000V reference 6. Benchmark test holes. 7. Analog input, AIN0-AIN7 has a total of eight input ports, which can be used as 8 independent single-ended inputs, or as a group of 4 differential inputs. AIN0 and AIN1 are a group, AIN2 and AIN3 AIN4 and AIN5 AIN6 and AIN7 . 8. Analog ground input 9. Input resistance and attenuation resistance. The attenuation resistor is not soldered by default. 10.ADS1256 main control chip 11. AMS1117-3.3v, providing digital voltage to the ADS1256. 12.NSK brand crystal oscillator, 7.68MHZ 13. Communication interface with MCU.

 

                                         实物图展示：                                           

                             部分程序代码展示：                                     

 

/*********************************************************************** * 名称：Ad1256Ini（） * 功能：初始化ADS1256 * 入口参数：ain_slect:通道选择 pga:内置增益选择 fdat:转换速率 * 出口参数：0:初始化失败 1：初始化成功 * 编写日期：2013-10-31 ************************************************************************/ void Ad1256Ini(void) {    uint8 zz;   while(DRDY);   zz = SpiMasterSendData(RESET);   ColDelayUs(100);   while(DRDY);    zz = SpiMasterSendData(SYNC);                //同步命令   zz = SpiMasterSendData(WAKEUP);                //唤醒命令   while(DRDY);   zz = SpiMasterSendData(WREG|STATUS);        //连续写4个寄存器   zz = SpiMasterSendData(3);   zz = SpiMasterSendData(0x04);                //STATUS:  MSB ;AOTO ColCalibration;BUFFER DISABLEED   zz = SpiMasterSendData(0X0F);                //MUX   :  AIN0   zz = SpiMasterSendData(0X20);                //ADCON :  FCLK IN;SENSOR DETECT OFF;PGA 1   zz = SpiMasterSendData(0XD0);                //DRATE :  Ads1256Fdata 15KSPS   ColDelayUs(50);               } /***********************************************************************        The program code and its richness are not listed here. The 8-channel measurement, self-gain measurement, read register and other related test procedures have been debugged on the machine. Another large amount of classic code collected online is available for users to refer to the cutting configuration. It allows you to evaluate whether the ADS1256 is suitable for your project in the shortest possible time and save your valuable development time.

                                      The measured results show:                            

 

                            100SPS速率采集基准结果：                        

                                    部分原理图展示：                                  

                                            接线图                                            

                                      PCB效果图：                                          

                                      PCB尺寸说明                                         

                                   配送资料：                                             

 

 

                                     发货清单                                              

• ADS1256成品模块一套（测试好）；
• 电源线；