OP27
Low-Noise / Precision Operational Amplifier (Analog Devices)
OP27
Low-Noise Precision Operaional Amplifiers (Maxim Integrated Products)
OP27
LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS (Texas Instruments)
OP270
DUAL VERY LOW NOISE PRECISION OPERATIONAL AMPLIFIER (Analog Devices)
OP271
HIGH SPEED DUAL OPERATIONAL AMPLIFIER (Analog Devices)
OP271
HIGH SPEED DUAL OPERATIONAL AMPLIFIER (Analog Devices)
OP275
Dual Bipolar/JFET / Audio Operational Amplifier (Analog Devices)
OP279
Rail-to-Rail High Output Current Operational Amplifiers (Analog Devices)