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Texas Instruments OPAx328 Operational Amplifiers are single-channel and dual-channel precision, low-voltage CMOS operational amplifiers optimized for low noise and wide bandwidth. The OPAx328 features a linear input stage with zero crossover distortion that allows an excellent common mode rejection ratio (CMRR) of 120dB (typical) over the full input range. The device’s input common-mode voltage range extends 100mV beyond the negative and positive supply rails.
The TI OPAx328 Operational Amplifiers utilize TI’s proprietary e‑trim™ operational amplifier technology, permitting a unique combination of ultra-low offset and low input offset drift without the need for any input switching or auto-zero techniques. The low-noise (6.1nV/√Hz) and high-speed operation (40MHz, 30V/μs) make the OPAx328 ideal for driving sampling analog-to-digital converters (ADCs). Additionally, the OPAx328 is also suitable for high impedance-input, single-supply applications.









