Texas Instruments provides a recommended PCB layout in the OPA836 datasheet, which includes guidelines for component placement, routing, and grounding. Following this layout can help minimize noise, reduce parasitic inductance, and ensure optimal performance.
The output capacitor should be chosen based on the desired closed-loop bandwidth, output impedance, and stability requirements. A general rule of thumb is to use a capacitor with a value between 10nF to 100nF, and a voltage rating that exceeds the maximum output voltage of the op-amp. TI also provides a capacitor selection guide in the datasheet.
The maximum power dissipation of OPA836IRUNT is dependent on the ambient temperature and the package type. The datasheet provides a power dissipation calculation formula, which takes into account the supply voltage, output current, and package thermal resistance. Engineers should ensure that the calculated power dissipation does not exceed the maximum rating to prevent overheating and reliability issues.
To ensure EMI compliance, engineers should follow good PCB design practices, such as using a solid ground plane, minimizing trace lengths, and using shielding or filtering components. Additionally, TI provides EMI-related application notes and design guides that can help engineers optimize their designs for EMI compliance.
The recommended input common-mode voltage range for OPA836IRUNT is typically within 1.5V of the supply rails. Operating outside this range may affect the op-amp's performance, stability, or even cause damage. Engineers should ensure that the input common-mode voltage is within the recommended range to ensure optimal performance.
OPA836IRUNT datasheet
by Texas Instruments
