OPA4820

四路、单位增益、低噪声、电压反馈运算放大器

The provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications.

Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail RR output, this swing will support most emerging analog-to-digital converter ADC input ranges with lower power and noise than typical RR output op amps.

Exceptionally low dG/dP 0.01%/0.03° supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14.

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HIGH BANDWIDTH: 220MHz G = +2

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HIGH OUTPUT CURRENT: ±85mA

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LOW INPUT NOISE: 2.5nV/Hz

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LOW SUPPLY CURRENT: 5.7mA/ch

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FLEXIBLE SUPPLY VOLTAGE:

±2V to ±6.3V Dual Supply

+4V to +12.6V Single Supply

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EXCELLENT DC ACCURACY:

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Maximum 25°C Input Offset Voltage = 0.8mV

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Maximum 25°C Input Offset Current = 500nA

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APPLICA ONS

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LOW–COST VIDEO LINE DRIVERS

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ADC PREAMPS

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ACTIVE FILTERS

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LOW–NOISE INTEGRATORS

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PORTABLE TEST EQUIPMENT

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OPTICAL CHANNEL AMPLIFIERS

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LOW–POWER, BASEBAND AMPLIFIERS

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CCD IMAGING CHANNEL AMPLIFIERS

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OPA4650 UPGRADE

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