CA 3140T

The CA 3140T is a high-performance operational amplifier that combines a MOSFET input stage with a bipolar output stage to deliver low input current, strong output drive, and fast transient response. It is engineered for applications requiring minimal input bias current and a high slew rate, making it suitable for precision signal conditioning and fast analog processing. Input bias current below 10 pA for minimal signal loading and superior performance with high-impedance sensors. Slew rate of 10 V/µs to support rapid changes at the input and maintain waveform fidelity. Gain bandwidth product of 4 MHz for reliable amplification across a broad frequency range. Wide supply voltage range ±5 V to ±15 V enabling flexible circuit design and compatibility with common power rails. Output voltage swing close to supply rails to maximize usable dynamic range in single- and dual-supply configurations. The hybrid MOSFET-input/bipolar-output architecture of the CA 3140T yields substantially lower input bias currents than conventional bipolar-input amplifiers while preserving strong output capability. This combination improves performance in high-impedance measurement and sensor interfaces without sacrificing drive strength. The amplifier’s balance of noise performance, slew rate, and bandwidth supports precise analog tasks such as active filtering, instrumentation, and buffer stages where both accuracy and speed are required. With its wide supply tolerance, near-rail output swing, and optimized internal topology, the CA 3140T offers designers a versatile solution for demanding analog signal processing applications.