OPA3695

具有禁用功能的超宽带电流反馈运算放大器

The is a triple, very high bandwidth, current-feedback opamp that combines an exceptional 4300V/µs slew rate and a very high 900MHz bandwidth G = +2V/V to provide an amplifier that is ideal for the most demanding video applications. The device versatility is enhanced with a low 1.8nV/√Hz input voltage noise and an output stage that can swing within 1V from the supply rail to deliver a high dynamic range signal, making it well-suited for analog-to-digital converter ADC front-ends or digital-to-analog converter DAC output buffering. Optimized for high gain operation, the OPA3695 is also well-suited for buffering surface acoustic wave SAW filters in an intermediate frequency IF system.

The low 12.9mA/channel supply current is precisely trimmed at +25°C. This trim, along with a low temperature drift, gives low system power over temperature. System power may be further reduced using the Disable control pin. Leaving this pin open, or holding it high, gives normal operation. If pulled low, the OPA3695 supply current drops to 100µA/channel. This power-saving feature, along with exceptional single +5V operation, makes the OPA3695 a good fit for low-power applications that require very high performance. The OPA3695 is available in an SSOP-16 package.

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900MHz BANDWIDTH, GAIN = +2V/V

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450MHz BANDWIDTH, GAIN = +8V/V

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WIDE OUTPUT VOLTAGE SWING: ±4V

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ULTRA-HIGH SLEW RATE: 4300V/µs

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3RD-ORDER INTERCEPT: > 35dBm f < 40MHz

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LOW 1.8nV/√Hz VOLTAGE NOISE

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±120mA OUTPUT CURRENT DRIVE

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12.9mA/Ch SUPPLY CURRENT ±5V

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LOW 0.1mA/Ch DISABLE CURRENT

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3.5V to 12V SINGLE-SUPPLY OPERA ON

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±1.75V to ±6V SPLIT-SUPPLY OPERATION

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APPLICATIONS

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BROADBAND VIDEO LINE DRIVERS

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VERY WIDEBAND ADC DRIVERS

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HIGH BANDWIDTH INSTRUMENTATION AMPLIFIERS

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HIGH-SPEED IMAGING

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ACTIVE FILTERS

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ARB WAVEFORM OUTPUT DRIVERS

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