Ultralow Noise VGAs with Preamplifier and Programmable RIN

GENERAL DESCRIPTION The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an u

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

文件：867.22 Kbytes 页数：40 Pages

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内置超低噪声前置放大器和可编程输入阻抗(RIN)的单通道VGA

AD8331是一款单通道、超低噪声、线性dB可变增益放大器(VGA)，针对超声系统应用进行了优化，可以用作低噪声可变增益元件，频率最高为120 MHz。\n\n 这款器件内置一个超低噪声前置放大器(LNA)、一个48 dB增益范围的X-AMP® VGA以及一个具有可调输出限制功能的可选增益后置放大器。LNA增益为19dB，具有单端输入和差分输出。LNA输入阻抗可以利用一个电阻来调节，以便与信号源相匹配，且不影响噪声性能。\n\n VGA的48dB增益范围使这些器件适合各种不同的应用。带宽在整个增益范围内可保持出色的一致性。对于40mV至1V范围内的控制电压，增益控制接口可提 • 超低噪声前置放大器\n\n• 电压噪声 = 0.74 nV/√Hz\n\n• 电流噪声 = 2.5 pA/√Hz\n\n\n\n\n• 3 dB带宽：120 MHz\n\n• 低功耗：每通道125 mW\n\n• 可编程后置放大器提供宽增益范围\n• LO增益模式：−4.5 dB至+43.5 dB\n\n• HI增益模式：7.5 dB至55.5 dB\n\n\n\n\n• 折合到输出端的噪声较低：48 nV/√Hz（典型值）\n\n• 有源输入阻抗匹配;

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

GENERAL DESCRIPTION The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an u

文件：482.98 Kbytes 页数：32 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

GENERAL DESCRIPTION The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an u

文件：482.98 Kbytes 页数：32 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

GENERAL DESCRIPTION The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an u

文件：482.98 Kbytes 页数：32 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

GENERAL DESCRIPTION The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an u

文件：482.98 Kbytes 页数：32 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

文件：867.22 Kbytes 页数：40 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable RIN

文件：1.82501 Mbytes 页数：56 Pages

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Ultralow Noise VGAs with Preamplifier and Programmable R

文件：1.82501 Mbytes 页数：56 Pages

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