DRV135UA datasheet by Texas Instruments

DRV135UA Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the DRV135UA?
  The maximum power dissipation of the DRV135UA is 1.4W. However, it's recommended to keep the junction temperature below 150°C to ensure reliable operation.
• How do I choose the correct gain setting for my application?
  The gain setting depends on the input signal amplitude and the desired output signal amplitude. A higher gain setting is suitable for smaller input signals, while a lower gain setting is suitable for larger input signals. Refer to the datasheet's gain setting table to determine the appropriate gain setting for your application.
• What is the purpose of the ZIN pin, and how do I use it?
  The ZIN pin is an input impedance selection pin. It allows the user to select between a high impedance (ZIN = 0) or a low impedance (ZIN = 1) input stage. A high impedance input stage is suitable for high-impedance sources, while a low impedance input stage is suitable for low-impedance sources.
• How do I ensure the DRV135UA is operating within its specified frequency range?
  The DRV135UA is designed to operate within a specific frequency range (20 Hz to 20 kHz). To ensure operation within this range, use a low-pass filter at the input to remove high-frequency noise and ensure the input signal is within the specified frequency range.
• What is the recommended layout and grounding technique for the DRV135UA?
  To minimize noise and ensure proper operation, use a star-grounding technique and keep the analog and digital grounds separate. Place the DRV135UA close to the analog signal source and use short, direct traces to minimize noise pickup.