Texas Instruments OPAx388 Precision Operational Amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation. These devices offer excellent ac performance, combined with only 0.25µV of offset and 0.005µV/°C of drift over temperature. This makes the OPAx388 ideal for driving high-precision, analogue-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analogue converters (DACs). This design results in superior performance when driving analogue-to-digital converters (ADCs) without degradation of linearity. The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 packages.