Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADC close to the analog signal sources to minimize noise. Additionally, decoupling capacitors should be placed as close as possible to the power pins.
To ensure accurate conversions, it's essential to provide a clean and stable power supply, use a low-noise reference voltage, and minimize noise on the analog input signals. Additionally, the ADC should be operated within its specified temperature range.
The ADS7805PBG4 has a maximum sampling rate of 100 kSPS. However, the actual sampling rate may be limited by the system's clock frequency, the analog input signal's bandwidth, and the digital interface's data transfer rate.
Yes, the ADS7805PBG4 is a single-channel ADC, but it can be used in a multi-channel application by using multiple devices or by multiplexing the analog input signals using an external multiplexer.
The ADS7805PBG4 outputs 16-bit digital data in a serial format. The digital output data can be handled using a microcontroller or a digital signal processor, and can be processed using software or firmware.
ADS7805PBG4 datasheet
by Texas Instruments
