DESCRIPTION
The μPC811 operational amplifier offers high input
impedance, low offset voltage, high slew rate, and
stable AC operating characteristics. NEC's unique
high-speed PNP transistor (fr-300 MHz) in the output
stage solves the oscillation problem of current sink-
ing 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 10 000 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/VHz (TYP.)
• Output short circuit protection
• High input impedance... J-FET Input Stage
• Internal frequency compensation
High slew rate: 15 V/us (TYP.)