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The OPAx 277 series of precision op amps replace the industry standard OP-177. They offer better noise, wider output voltage swing, and are twice as fast with half the quiescent current. Features include ultra-low bias voltage and drift, low bias current, high common-mode rejection, and high power supply rejection. Single, dual, and four versions have the same specifications to maximize design flexibility.

The OPAx 277 series op amps operate from ±2-V to ±18V with excellent performance. Unlike most op amps that are specified at only one supply voltage, the OPAx 277 series are specified for practical applications; one limit applies to ± 5-V to ±15V supply range. Maintain high performance as amplifiers swing to their specified limits. Due to the low initial offset voltage (±20V max), no adjustment is usually required by the user. However, a single version (OPA 277) offers external trim pins for special applications.

The OPA 277 op amp is easy to use and immune to phase reversal and overload problems found in other op amps. They are stable at unity gain and provide excellent dynamic behavior over a wide range of load conditions. Dual and quad versions feature fully independent circuits, minimal crosstalk and free interaction, even under overload or overload.

Ultra Low Bias Voltage: 10 V Ultra Low Drift: ±0.1V/°C High Open Loop Gain: 134 dB High Common Mode Rejection: 140 dB High Power Supply Rejection: 130 dB Low Bias Current: 1-NA Maximum Wide Supply Range: ± 2V to ±18V Low Quiescent Current: 800 A/Amp Single, Dual, Four Versions Replaces OP-07, Op. 77 and Op. 177