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OPA388 Datasheet(PDF) 15 Page - Texas Instruments |
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OPA388 Datasheet(HTML) 15 Page - Texas Instruments |
15 / 32 page +IN ±IN OUT Copyright © 2016, Texas Instruments Incorporated Ripple Reduction Technology CLK CLK Low-noise Charge-pump GM1 GM2 GM_FF GM3 CCOMP CCOMP 15 OPA388, OPA2388, OPA4388 www.ti.com SBOS777 – DECEMBER 2016 Product Folder Links: OPA388 OPA2388 OPA4388 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The OPAx388 family of zero-drift amplifiers is engineered with the unique combination of a proprietary precision auto-calibration technique paired with a low-noise, low-ripple, input charge pump. These amplifiers offer ultra-low input offset voltage and drift and achieve excellent input and output dynamic linearity. The OPAx388 operates from 2.5 V to 5.5 V, is unity-gain stable, and is suitable for a wide range of general-purpose and precision applications. The integrated, low-noise charge pump allows true rail-to-rail input common-mode operation without distortion associated with complementary rail-to-rail input topologies (input crossover distortion). The OPAx388 strengths also include 10-MHz bandwidth, 7-nV/ √Hz noise spectral density, and no 1/f noise, making the OPAx388 optimal for interfacing with sensor modules and buffering high-fidelity, digital-to-analog converters (DACs). 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Operating Voltage The OPA3x88 family of operational amplifiers can be used with single or dual supplies from an operating range of VS = 2.5 V (±1.25 V) up to 5.5 V (±2.75 V). Supply voltages greater than 7 V can permanently damage the device (see Absolute Maximum Ratings). Key parameters that vary over the supply voltage or temperature range are shown in the Typical Characteristics section. |
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