11.1 Layout Guidelines
Precision designs require careful layout, the list below provides some insight into good layout practices.
- Bypass all power-supply pins to ground with a low ESR ceramic bypass capacitor. The typical recommended bypass capacitance is 0.1 to 1 µF ceramic with a X7R or NP0 dielectric.
- Place power supply and reference bypass capacitors close to the terminals to minimize inductance and optimize performance.
- A high-quality ceramic type NP0 or X7R is recommended for its optimal performance across temperature, and very low dissipation factor.
- The digital and analog sections should have proper placement with respect to the digital and analog components. The separation of analog and digital circuitry allows for better design and practice as it allows less coupling into neighboring blocks, and minimizes the interaction between analog and digital return currents.