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THS4631DDA Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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THS4631DDA Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 34 page DGN−8 DDA−8 D−8 _ + RF CF λ −V(Bias) RL Photodiode Circuit THS4631 www.ti.com SLOS451B – DECEMBER 2004 – REVISED AUGUST 2011 HIGH-VOLTAGE, HIGH SLEW RATE, WIDEBAND FET-INPUT OPERATIONAL AMPLIFIER Check for Samples: THS4631 1 FEATURES DESCRIPTION The THS4631 is a high-speed, FET-input operational 2 • High Bandwidth: amplifier designed for applications requiring wideband – 325 MHz in Unity Gain operation, high-input impedance, and high-power – 210 MHz Gain Bandwidth Product supply voltages. By providing a 210-MHz gain bandwidth product, ±15-V supply operation, and • High Slew Rate: 100-pA input bias current, the THS4631 is capable of – 900 V/µs (G = 2) simultaneous wideband transimpedance gain and – 1000 V/µs (G = 5) large output signal swing. The fast 1000 V/ µs slew rate allows for fast settling times and good harmonic • Low Distortion of –76 dB, SFDR at 5 MHz distortion at high frequencies. Low current and • Maximum Input Bias Current: 100 pA voltage noise allow amplification of extremely • Input Voltage Noise: 7 nV/ √Hz low-level input signals while still maintaining a large signal-to-noise ratio. • Maximum Input Offset Voltage: 500 µV at 25°C • Low Offset Drift: 2.5 µV/°C The characteristics of the THS4631 make it ideally suited for use as a wideband photodiode amplifier. • Input Impedance: 109 || 3.9 pF Photodiode output current is a prime candidate for • Wide Supply Range: ± 5 V to ± 15 V transimpedance amplification as shown below. Other • High Output Current: 95 mA potential applications include test and measurement systems requiring high-input impedance, ADC and APPLICATIONS DAC buffering, high-speed integration, and active filtering. • Wideband Photodiode Amplifier The THS4631 is offered in an 8-pin SOIC (D), and • High-Speed Transimpedance Gain Stage the 8-pin SOIC (DDA) and MSOP (DGN) with • Test and Measurement Systems PowerPAD ™ package. • Current-DAC Output Buffer Related FET Input Amplifier Products • Active Filtering SLEW VOLTAGE • High-Speed Signal Integrator VS GBWP MINIMUM DEVICE RATE NOISE (V) (MHz) GAIN (V/ µS) (nV/ √Hz) • High-Impedance Buffer OPA656 ±5 230 290 7 1 OPA657 ±5 1600 700 4.8 7 OPA627 ±15 16 55 4.5 1 THS4601 ±15 180 100 5.4 1 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPad is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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