OPA653

宽带，固定增益， JFET输入放大器 Wideband, Fixed Gain, JFET-Input AMPLIFIER

The combines a very wideband voltage-feedback operational amplifier with a JFET-input stage with internal gain setting resistors to achieve an ultra-high, dynamic-range amplifier for fixed gain of +2-V/V or –1-V/V applications.

The 500-MHz wide gain of +2-V/V bandwidth is complemented by a very high 2675-V/µs slew rate and fast settling time that make it ideal for time-domain and pulse-oriented applications.

Excellent –72-dBc THD distortion performance at 10 MHz makes the OPA653 an excellent choice for frequency-domain and FFT analysis applications.

Additionally, with the low 6.1-nV/√Hz voltage noise, low bias current, and high impedance JFET input, it supports very low noise, wideband, high input impedance applications. Examples include high-impedance probes, data acquisition cards, and oscilloscope front-ends.

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HIGH BANDWIDTH: 500 MHz G = +2 V/V

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HIGH SLEW RATE: 2675 V/µs 4-V Step

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EXCELLENT THD: –71dBc at 10 MHz

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LOW INPUT VOLTAGE NOISE: 6.1 nV/√Hz

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FAST OVERDRIVE RECOVERY: 8 ns

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FAST SETTLING ME 1% 4-V Step: 7.9 ns

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LOW INPUT OFFSET VOLTAGE: ±1 mV

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LOW INPUT BIAS CURRENT: ±10 pA

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HIGH INPUT IMPEDANCE: 1012 ||2.5 pF

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INTERNAL GAIN SETTING RESISTORS:

G = +2 V/V or G = –1 V/V

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HIGH OUTPUT CURRENT: 70 mA

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APPLICATIONS

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TEST AND MEASUREMENT FRONT-END

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HIGH-INPUT IMPEDANCE PROBES

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DATA ACQUISITION CARDS

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OSCILLOSCOPE INPUT

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ADC INPUT AMPLIFIER

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