OPA340

MicroAmplifierTM 系列单电源轨至轨运算放大器

The series rail-to-rail CMOS operational amplifiers are optimized for low-voltage, single-supply operation. Rail-to-rail input and output and high-speed operation make them ideal for driving sampling analog-to-digital A/D converters. They are also well-suited for general purpose and audio applications as well as providing I/V conversion at the output of digital-to-analog D/A converters. Single, dual, and quad versions have identical specifications for design flexibility.

The OPA340 series operate on a single supply as low as 2.5 V with an input common-mode voltage range that extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of the supply rails with a 100-kΩ load. These devices offer excellent dynamic response BW = 5.5 MHz, SR = 6 V/µs, yet quiescent current is only 750 A. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single OPA340 packages are the tiny 5-pin SOT-23 surface mount, 8-pin SOIC surface mount, and 8-pin DIP. The dual OPA2340 comes in the miniature 8-pin VSSOP surface mount, 8-pin SOIC surface mount, and 8-pin PDIP packages. The quad OPA4340 packages are the space-saving 16-pin SSOP surface mount and 14-pin SOIC surface mount. All are specified from –40°C to 85°C and operate from –55°C to 125°C. A SPICE macromodel is available for design analysis.

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Rail-to-Rail Input

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Rail-to-Rail Output Within 1 mV

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_Micro_Size Packages

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Wide Bandwidth: 5.5 MHz

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High Slew Rate: 6 V/µs

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Low THD + Noise: 0.0007% f = 1 kHz

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Low Quiescent Current: 750 µA/Channel

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Single, Dual, and Quad Versions