The maximum power dissipation of the INA105KU/2K5E4 is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (RθJA) of 125°C/W.
To minimize noise and ensure accurate measurements, it is recommended to follow proper PCB layout practices, such as separating analog and digital grounds, using a solid ground plane, and keeping sensitive analog signals away from noisy digital signals. Additionally, the INA105KU/2K5E4 should be placed close to the signal source and the input signals should be routed directly to the device.
The recommended input impedance for the INA105KU/2K5E4 is 1kΩ or higher. This ensures that the input voltage is not loaded down and the device can operate within its specified input range.
The INA105KU/2K5E4 is designed for low-frequency applications up to 50kHz. While it may be possible to use it for higher frequencies, the device's performance may degrade, and it may not meet the required specifications. For high-frequency applications, a different device may be more suitable.
The gain error of the INA105KU/2K5E4 can be calculated using the formula: Gain Error (%) = (Vout - (Vcm x Gain)) / (Vcm x Gain) x 100, where Vout is the output voltage, Vcm is the common-mode voltage, and Gain is the specified gain of the device.
INA105KU/2K5E4 datasheet
by Texas Instruments
