Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using 50-ohm transmission lines for input and output signals.
The gain resistors (Rf and Rg) should be chosen based on the desired gain and bandwidth of the amplifier. A higher gain requires smaller resistors, while a lower gain requires larger resistors. The datasheet provides a gain calculation formula and a table with recommended resistor values for different gains.
The maximum input voltage is not explicitly stated in the datasheet, but it's limited by the supply voltage and the internal ESD protection diodes. As a general rule, the input voltage should not exceed the supply voltage by more than 0.5V to prevent damage to the device.
Yes, the LMP8358 can be used as a single-ended amplifier by tying the negative input to ground and using the positive input as the signal input. However, this will reduce the common-mode rejection ratio (CMRR) and may affect the overall performance of the amplifier.
The LMP8358 has a high gain and bandwidth, making it susceptible to noise and interference. To filter out noise, use a low-pass filter or a band-pass filter at the input, and consider adding a ferrite bead or a common-mode choke to the power supply lines.
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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.
