INA105KU

The Texas Instruments INA105KU is a monolithic precision unity gain differential amplifier. It integrates a precision operational amplifier with an on-chip metal film resistor network, laser-trimmed for accurate gain and high common-mode rejection. This design ensures excellent tracking of resistors over temperature, maintaining gain accuracy and common-mode rejection.

Key electrical specifications include a typical bandwidth of 1MHz, a maximum gain error of 0.025%, and a maximum gain drift of 5ppm/°C. The amplifier also features low nonlinearity of 0.001% maximum, a low offset voltage of 500µV maximum, and a low offset voltage drift of 20µV/°C maximum. The high common-mode rejection ratio (CMRR) is a minimum of 72dB.

Designed for precision circuit functions without the need for expensive external resistor networks, the INA105KU is suitable for various applications requiring accurate differential amplification. The input common-mode range extends beyond the positive and negative supply rails.

This component is available in an 8-pin SOIC surface-mount package. It operates within an ambient temperature range of -40°C to 85°C. The standard package quantity is 2,500 units on tape and reel.