Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The analog input traces should be short and direct, and the digital output traces should be routed away from the analog inputs. Additionally, decoupling capacitors should be placed close to the device's power pins.
The ADS8345E/2K5 has a built-in POR circuit that resets the device when the power supply voltage rises above 1.5V. The recommended power-up sequence is to apply the analog power supply (AVCC) first, followed by the digital power supply (DVCC), and then the clock signal. This ensures that the device is properly initialized and ready for operation.
The ADS8345E/2K5 can achieve a maximum sampling rate of 100kSPS. However, the actual sampling rate may be limited by the device's settling time, the clock frequency, and the system's noise floor. Additionally, the device's throughput rate may be affected by the conversion mode, the number of channels, and the interface mode.
The ADS8345E/2K5 does not require calibration, as it has an internal calibration circuit that ensures accurate conversions. However, the device's performance may be affected by external factors such as temperature, voltage, and noise. To ensure optimal performance, it is recommended to follow the datasheet's guidelines for PCB layout, component selection, and system design.
The ADS8345E/2K5 has a latency of 2.5 clock cycles, which means that the device requires 2.5 clock cycles to complete a conversion and make the result available on the output pins. This latency should be taken into account when designing the system's timing and synchronization.
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ADS8345E/2K5 Overview
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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.
