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OPA277-OPA277AIDRMR-OPA277P-OPA277PA-OPA277PG4-OPA277U-OPA277U/2K5G4-OPA277UA-OPA277UA .-OPA277UA/2K5E4-OPA277UAG4-OPA277UG4
High Precision Operational Amplifiers 8-VSON
50nV/div
Noise signal is bandwidth limited to
lie between 0.1Hz and 10Hz.
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OPA277, OPA2277, OPA4277SBOS079B –MARCH 1999–REVISED JUNE 2015
OPAx277 High Precision Operational AmplifiersOPAx277 series operational amplifiers operate from
1 Features±2-Vto ±18-V supplies with excellent performance. Ultralow Offset Voltage:10 μV Unlike most operational amplifiers which are specified• Ultralow Drift: ±0.1 μV/°C at only one supply voltage, the OPAx277 seriesis
specified for real-world applications;a single limit• High Open-Loop Gain: 134 dB
applies over the ±5-Vto ±15-V supply range. High• High Common-Mode Rejection: 140 dB performanceis maintained as the amplifiers swingto• High Power Supply Rejection: 130 dB their specified limits. Because the initial offset voltage
(±20 μV maximum)is so low, user adjustmentis• Low Bias Current: 1-nA maximum
usually not required. However, the single version• Wide Supply Range:±2Vto ±18V (OPA277) provides external trim pins for special• Low Quiescent Current: 800 μA/amplifier applications. Single, Dual, and Quad Versions OPA277 operational amplifiers are easyto use and• Replaces OP-07, OP-77, and OP-177 free from phase inversion and the overload problems
foundin some other operational amplifiers. They are
2 Applications stablein unity gain and provide excellent dynamic
behavior overa wide rangeof load conditions. Dual• Transducer Amplifiers and quad versions feature completely independent• Bridge Amplifiers circuitry for lowest crosstalk and freedom from• Temperature Measurements interaction, even when overdrivenor overloaded. Strain Gage Amplifiers
Device Information(1)• Precision Integrators• Battery-Powered Instruments• Test Equipment
3 DescriptionThe OPAx277 series precision operational amplifiersreplace the industry standard OP-177. They offer
improved noise, wider output voltage swing, and are (1) Forall available packages, see the orderable addendumattwiceas fast with half the quiescent current. Features the endofthe data sheet.
include ultralow offset voltage and drift, low bias
current, high common-mode rejection, and high
0.1 Hzto 10 Hz Noisepower supply rejection. Single, dual, and quad
versions have identical specifications, for maximum
design flexibility.
