Description:Analog to Digital Converters - ADC 12-Bit 500kSPS Single-Supply SAR ADC Data Acquisition System With Programmable Bipolar Input Ranges 16-TSSOP -40 to 125
Texas Instruments provides a recommended layout and routing guide in the ADS8665IPW datasheet (Section 10.1) and in the application note 'ADS8665 Layout and Routing Guidelines' (SLAA644). It's essential to follow these guidelines to minimize noise, ensure signal integrity, and achieve optimal performance.
The internal reference voltage can be configured using the REFSEL pin. For a 2.5V reference, connect REFSEL to VCC. For a 4.096V reference, connect REFSEL to GND. The internal buffer can be enabled or disabled using the REFB pin. For more information, refer to the datasheet (Section 7.3.1) and the application note 'ADS8665 Internal Reference and Buffer' (SLAA645).
The maximum sampling rate of the ADS8665IPW is 250 kSPS. However, the actual achievable sampling rate depends on the system clock frequency, conversion mode, and other factors. Higher sampling rates increase power consumption. For more information, refer to the datasheet (Section 7.1) and the application note 'ADS8665 Sampling Rate and Power Consumption' (SLAA646).
The ADS8665IPW outputs 16-bit digital data in a serial format. The output data format is twos-complement, with the most significant bit (MSB) first. The digital output data can be handled using a microcontroller or an FPGA. For more information, refer to the datasheet (Section 7.4) and the application note 'ADS8665 Digital Output Data Handling' (SLAA647).
The ADS8665IPW has a maximum junction temperature (TJ) of 150°C. Ensure reliable operation over temperature by following proper thermal design and layout guidelines, using thermal vias, and providing adequate heat dissipation. For more information, refer to the datasheet (Section 10.2) and the application note 'ADS8665 Thermal Considerations' (SLAA648).
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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