GENERAL DESCRIPTION
The OP200 is the first monolithic dual operational amplifier to
offer OP77 type precision performance. Available in the industry
standard 8-lead pinout, the OP200 combines precision performance
with the space and cost savings offered by a dual amplifier.
The OP200 features an extremely low input offset voltage of less
than 75 µV with a drift below 0.5 µV/°C, guaranteed over the full
military temperature range. Open-loop gain of the OP200 exceeds
5,000,000 into a 10 kΩ load; input bias current is under 2 nA; CMRR
is over 120 dB; and PSRR is below 1.8 µV/V. On-chip Zener zap
trimming is used to achieve the extremely low input offset voltage
of the OP200 and eliminates the need for offset pulling.
Power consumption of the OP200 is low, with each amplifier drawing
less than 725 µA of supply current. The total current drawn by the
dual OP200 is less than one-half that of a single OP07, yet the
OP200 offers significant improvements over this industry-standard
op amp. The voltage noise density of the OP200, 11 nV/√Hz at 1 kHz,
is half that of most competitive devices.
The OP200 is pin compatible with the OP221, LM158, MC1458/MC1558,
and LT1013.
The OP200 is an ideal choice for applications requiring multiple
precision op amps and where low power consumption is critical.
For a quad precision op amp, see the OP400.
FEATURES
Low input offset voltage: 75 µV maximum
Low offset voltage drift, over −55°C < TA < +125°C 0.5 µV/°C
maximum
Low supply current (per amplifier): 725 µA maximum
High open-loop gain: 5000 V/mV minimum
Low input bias current: 2 nA maximum
Low noise voltage density: 11 nV/√Hz at 1 kHz
Stable with large capacitive loads: 10 nF typical