INA146UA

The INA146 is a precision difference amplifier from Texas Instruments, designed for accurate attenuation of high differential voltages and rejection of high common-mode voltages. This compatibility with common signal processing voltage levels is enhanced by its high-voltage capability, which also provides inherent input protection.

The device features a wide supply range, supporting single supplies from 4.5V to 36V and dual supplies from ±2.25V to ±18V. It offers a programmable differential gain ranging from 0.1V/V to 100V/V, which can be set with external resistors without affecting the common-mode input range. The INA146 boasts a high common-mode voltage capability of 40V at VS = 5V and ±100V at VS = ±15V, along with a high common-mode rejection ratio of 80dB.

On-chip precision resistors are laser-trimmed for accurate gain and high common-mode rejection, with excellent TCR tracking ensuring continued high precision over temperature. The input common-mode range extends beyond both supply rails, making it suitable for both single and dual supply applications. The INA146 is available in an 8-pin SOIC package and operates within a temperature range of -40°C to 85°C.