OPA2890

具有禁用功能的双路低功耗宽带电压反馈运算放大器

The represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. These capabilities give exceptional single-supply operation. Using a single +5V supply, the OPA2890 can deliver a 0.9V to 4.1V output swing with over 30mA drive current and 210MHz bandwidth. This combination of features makes the OPA2890 an ideal RGB line driver or single-supply analog-to-digital converter ADC input driver.

The low 1.1mA/ch supply current of the OPA2890 is precisely trimmed at +25°C. This trim, along with low temperature drift, ensures lower maximum supply current than competing products. System power may be reduced further using the optional disable control pin MSOP-10 package only. Leaving this disable pin open, or holding it high, operates the OPA2890 normally. If pulled low, the OPA2890 supply current drops to less than 30µA/ch while the output goes into a high-impedance state.

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FLEXIBLE SUPPLY RANGE:

+3V to +12V Single Supply

±1.5V to ±6V Dual Supplies

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UNITY-GAIN STABLE

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WIDEBAND +5V OPERA ON: 90MHz

G = 2V/V

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OUTPUT VOLTAGE SWING: ±4.1V

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HIGH SLEW RATE: 400V/µs

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LOW QUIESCENT CURRENT: 1.1mA/ch

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LOW DISABLE CURRENT: 30µA/ch

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APPLICATIONS

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VIDEO LINE DRIVING

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xDSL LINE DRIVERS/RECEIVERS

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HIGH-SPEED IMAGING CHANNELS

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ADC BUFFERS

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PORTABLE INSTRUMENTS

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TRANSIMPEDANCE AMPLIFIERS

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ACTIVE FILTERS

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