The µPC4091 operational amplifier offers high input impedance, low offset voltage, high slew rate, and stable AC operating characteristics. NECs unique high-speed PNP transistor (fT = 300 MHz) in the output stage solves the oscillation problem of current sinking with a large capacitive load. Zener-zap resistor trimming in the input stage produces excellent offset voltage and temperature drift characteristics.

FEATURES
• Stable operation with 10000 pF capacitive load
• Low input offset voltage and offset voltage null capability
    ±2.5 mV (MAX.)
    ±7 µV/°C (TYP.) temperature drift
• Very low input bias and offset currents
• Low noise : en = 19 nV/ √Hz (TYP.)
• Output short circuit protection
• High input impedance ... J-FET Input Stage
• Internal frequency compensation
• High slew rate: 15 V/µs (TYP.)