Texas Instruments provides a recommended PCB layout in the OPA2313 datasheet, which includes guidelines for component placement, trace routing, and grounding. Additionally, TI recommends using a 4-layer PCB with a solid ground plane to minimize noise and EMI.
For single-supply operation, the OPA2313QDGKRQ1 requires a bias voltage between VCC and VEE. TI recommends using a voltage divider or a voltage reference to set the bias voltage to mid-supply (VCC/2). Additionally, ensure that the input common-mode voltage is within the recommended range.
The OPA2313QDGKRQ1 can drive capacitive loads up to 1nF without oscillation or instability. However, TI recommends using a series resistor (Rs) to limit the capacitive load and prevent oscillation. The value of Rs depends on the capacitive load and the desired frequency response.
To reduce noise and EMI, TI recommends using a low-noise power supply, decoupling capacitors, and a solid ground plane. Additionally, use shielding and guard rings to minimize electromagnetic interference. Ensure that the input and output traces are routed away from noise sources and digital signals.
The OPA2313QDGKRQ1 has a thermal derating of 13.9mW/°C above 25°C. This means that the maximum power dissipation decreases by 13.9mW for every degree Celsius above 25°C. Ensure that the device is properly heat-sinked and that the ambient temperature is within the recommended range.