THS4601

宽带 FET 输入运算放大器

The is a high-speed, FET-input operational amplifier designed for applications requiring wideband operation, high-input impedance, and high-power supply voltages. By providing a 180-MHz gain-bandwidth product, ±15-V supply operation, and 100-pA input bias current, the THS4601 is capable of wideband transimpedance gain and large output signal swing simultaneously. Low current and voltage noise allow amplification of extremely low-level input signals while still maintaining a large signal-to-noise ratio.

The characteristics of the THS4601 ideally suit it for use as a wideband photodiode amplifier. Photodiode output current is a prime candidate for transimpedance amplification, an application of which is illustrated in Figure 1. Other potential applications include test and measurement systems requiring high-input impedance, digital-to-analog converter output buffering, high-speed integration, and active filtering.

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Gain Bandwidth Product: 180 MHz

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Slew Rate: 100 V/us

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Maximum Input Bias Current: 100 pA

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Input Voltage Noise: 5.4 nV/Hz

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Maximum Input Offset Voltage: 4 mV

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Input Impedance: 109 || 10 pF

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Power Supply Voltage Range: ±5 to ±15 V

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Unity Gain Stable

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APPLICA ONS

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Wideband Photodiode Amplifier

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High-Speed Transimpedance Gain Stage

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Test and Measurement Systems

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Current-DAC Output Buffer

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Active Filtering

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High-Speed Signal Integrator

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High-Impedance Buffer