OPA4277MDTEP

The OPA4277-EP high-precision op amp replaces the industry-standard OP-177. This device features improved noise performance, wider output voltage swing, and doubles the speed while halving the quiescent current. Key features include ultra-low offset voltage, ultra-low drift, low bias current, high CMRR, and high PSRR. The OPA4277-EP operates from ±2V to ±18V supplies with excellent performance. Unlike most op amps that specify only a single supply voltage, the OPA4277-EP high-precision op amp is application-dependent in its supply voltage selection, with the only constraint being that the supply voltage falls within ±5V to ±15V. High performance is maintained when the amplifier output swing reaches the specified limits. Due to the extremely low initial offset voltage (maximum ±20μV), user trimming is typically unnecessary. The OPA4277-EP is easy to use and free from the phase inversion and overload issues found in certain other op amps. It is unity-gain stable and maintains excellent dynamic performance over a wide range of load conditions. The OPA4277-EP features fully independent circuitry, ensuring minimum crosstalk and zero interaction even under overdrive or overload conditions.

Applications

• Transducer amplifier
• Bridge amplifier
• Temperature measurement
• Strain gauge amplifier
• Precision integrator
• Battery-powered instruments
• Test equipment

Key features

• Ultra-low offset voltage: 10μV
• Ultra-low drift: ±0.1μV/°C
• High open-loop gain: 134dB
• High CMRR: 140dB
• High PSRR: 130dB
• Low bias current: 1nA (max)
• Wide supply voltage range: ±2V to ±18V
• Low quiescent current: 800μA/amplifier
• Medical application support
• Controlled baseline
• Single assembly and test site
• Single manufacturing site
• Temperature range: -55°C to 125°C
• Extended product life cycle
• Extended product change notification
• Product traceability