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.)