OPA365

2.2V、50MHz 低噪声单电源轨至轨运算放大器

The OPAx365 zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise 4.5 nV/√Hz and high-speed operation 50-MHz Gain Bandwidth make these devices ideal for driving sampling analog-to-digital converters ADCs. Applications include audio, signal conditioning, and sensor amplification. The family of op amps are also well-suited for cell phone power amplifier control loops.

Special features include an excellent common-mode rejection ratio CMRR, no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 single version is available in the micro-size SOT23-5 SOT-5 and SOIC-8 packages. The OPA2365 dual version is offered in the SOIC-8 package. All versions are specified for operation from –40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

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Gain Bandwidth: 50 MHz

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Zerø-Crossover Distortion Topology:

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Excellent THD+N: 0.0004%

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CMRR: 100 dB Minimum

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Rail-to-Rail Input and Output

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Input 100 mV Beyond Supply Rail

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Low Noise: 4.5 nV/√Hz at 100 kHz

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Slew Rate: 25 V/µs

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Fast Settling: 0.3 µs to 0.01%

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Precision:

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Low Offset: 100 µV

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Low Input Bias Current: 0.2 pA

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2.2-V to 5.5-V Operation