Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital traces separate. Additionally, use a low-ESR capacitor for the AVDD pin and a 0.1uF capacitor for the REF pin. Route the analog input traces away from the digital traces and avoid crossing them over.
The ADS7952SBRHBR has a power-on reset (POR) circuit that ensures the device is in a valid state after power-up. However, it's recommended to add an external reset circuit to ensure the device is in a valid state after power-up. A 10kΩ pull-up resistor on the RESET pin to AVDD and a 0.1uF capacitor from RESET to GND can be used.
A low-jitter clock source is recommended, such as a crystal oscillator or a high-quality clock generator. To minimize clock jitter, use a clock source with a jitter of less than 100ps, and ensure the clock signal is routed away from noisy digital signals. Additionally, use a clock buffer or a clock conditioner to further reduce jitter.
The ADS7952SBRHBR outputs 16-bit data in a binary two's complement format. The data is output on the D[15:0] pins, with D[15] being the MSB and D[0] being the LSB. The data is valid on the rising edge of the SCLK pin. It's recommended to use a FIFO or a buffer to handle the data output, and to use a data format converter if necessary.
The ADS7952SBRHBR has an internal calibration circuit that can be used to calibrate the device. The calibration process involves writing a specific code to the CAL register, and then reading back the calibrated values. It's recommended to calibrate the device during manufacturing or during system startup, and to recalibrate as needed based on system requirements.
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ADS7952SBRHBR 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.
