Texas Instruments OPA2277UA Dual Operational Amplifier 1MHz 8-Pin SOIC

The Texas Instruments OPA2277UA Dual Operational Amplifier is a 1MHz dual op-amp supplied in an 8-pin SOIC package. It is designed as a replacement for the industry-standard OP-177 and offers ultralow offset voltage and drift, low bias current, and high common-mode and power supply rejection ratios.

Overview

The OPA2277UA delivers improved noise characteristics and a wider output voltage swing. For maximum design flexibility, the single, dual, and quad versions in the series share identical electrical specifications. The amplifier operates from a wide supply range of ±2V to ±18V and maintains performance across the full span, with a single performance limit applying over the ±5V to ±15V range. High performance is sustained as the amplifiers swing to their specified limits.

Key Features

• Ultralow offset voltage of 10µV, which typically eliminates the need for user adjustment
• Ultralow drift of ±0.1µV/°C
• Maximum low bias current of 1nA
• High common-mode and power supply rejection ratios
• Green product, manufactured without antimony or bromine (Sb/Br)

Specifications

• Gain bandwidth product: 1MHz
• Slew rate: 0.8V/µs (typical)
• High open-loop gain: 134dB
• High common-mode rejection: 140dB
• High power supply rejection: 130dB
• Low quiescent current: 800µA per amplifier

Applications

Suited to demanding applications. For specialised applications requiring fine-tuning, external trim pins are available on the single version (OPA277). The device has limited built-in ESD (electrostatic discharge) protection.

Choose the Texas Instruments OPA2277UA when you need a dual 1MHz operational amplifier in an 8-pin SOIC package with ultralow offset voltage and drift.