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ADS1114IRUGT Arkusz danych(PDF) 11 Page - Texas Instruments |
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ADS1114IRUGT Arkusz danych(HTML) 11 Page - Texas Instruments |
11 / 36 page VDD GND SCL SDA ADDR A T (ADS1114/5Only) LER AIN0 AIN1 AIN2(ADS1115Only) AIN3(ADS1115Only) SCL(P1.6) SDA(P1.7) 1 F 00n I C-Capabl Master e ( ) MSP430F2002 2 ADS1 13/4/ 1 5 +3.3V VDD GND 1 F 00n +3.3V JTAG Serial AR /U T +3.3V 10kW 10kW ADS1113 ADS1114 ADS1115 www.ti.com SBAS444B – MAY 2009 – REVISED OCTOBER 2009 QUICKSTART GUIDE For example, to write to the configuration register to set the ADS1113/4/5 to continuous conversion mode This section provides a brief example of ADS1113/4/5 and then read the conversion result, send the communications. Refer to subsequent sections of this following bytes in this order: data sheet for more detailed explanations. Hardware for this design includes: one ADS1113/4/5 configured Write to Config register: with an I2C address of 1001000; a microcontroller First byte: 0b10010000 (first 7-bit I2C address with an I2C interface (TI recommends the followed by a low read/write bit) MSP430F2002); discrete components such as resistors, capacitors, and serial connectors; and a 2V Second byte: 0b00000001 (points to Config register) to 5V power supply. Figure 23 shows the basic Third byte: 0b10000100 (MSB of the Config register hardware configuration. to be written) The ADS1113/4/5 communicate with the master Fourth byte: 0b10000011 (LSB of the Config register (microcontroller) through an I2C interface. The master to be written) provides a clock signal on the SCL pin and data are transferred via the SDA pin. The ADS1113/4/5 never Write to Pointer register: drive the SCL pin. For information on programming First byte: 0b10010000 (first 7-bit I2C address and debugging the microcontroller being used, refer followed by a low read/write bit) to the device-specific product data sheet. Second byte: 0b00000000 (points to Conversion The first byte sent by the master should be the register) ADS1113/4/5 address followed by a bit that instructs the ADS1113/4/5 to listen for a subsequent byte. The Read Conversion register: second byte is the register pointer. Refer to Table 9 First byte: 0b10010001 (first 7-bit I2C address for a register map. The third and fourth bytes sent followed by a high read/write bit) from the master are written to the register indicated in the second byte. Refer to Figure 30 and Figure 31 for Second byte: the ADS1113/4/5 response with the read and write operation timing diagrams, MSB of the Conversion register respectively. All read and write transactions with the Third byte: the ADS1113/4/5 response with the LSB ADS1113/4/5 must be preceded by a start condition of the Conversion register and followed by a stop condition. Figure 23. Basic Hardware Configuration Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): ADS1113 ADS1114 ADS1115 |
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