900MHz High Output Current Feedback Amplifier 'THS3491'
Provides a new level of performance for applications requiring minimal distortion at ultra-high output levels through operating frequencies exceeding 100MHz with a 100Ω load. The gain is specified at 5V/V but maintains nearly constant bandwidth and distortion over a wide gain range. An excellent slew rate of 8000V/µs delivers a 10VPP output with ultra-low distortion through a 320MHz bandwidth, even under demanding loads. Additionally, a small signal bandwidth of 900MHz provides low overshoot with rise times of less than 0.5ns for steps under 4V. The package is VQFN-16 (RGT). An 8-pin SO PowerPA (DDA) package can be used to upgrade existing designs using 'THS3091' or 'THS3095'. The 'THS3491' offers larger output amplitudes on the same ±15V power supply compared to 'THS3091' and 'THS3095'. Evaluation modules are also available.
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basic information
■Bandwidth: * 900MHz (VO = 2VPP, AV = 5V/V) * 320MHz (VO = 10VPP, AV = 5V/V) ■Bipolar power supply range: ±7.0V to ±16.0V ■Single power supply operation possible ■Trimming power supply current: 16.8mA (low temperature coefficient) ■Output amplitude: 28VPP (16V power supply, 100Ω load) ■Slew rate: 8000V/μs ■THD: < -65dBc (50MHz, VO = 10VPP, 100Ω load) ■Linear output current: ±380mA ■Input voltage noise: 1.85nV/√Hz ■Rise time: < 1.5ns (10V step, AV = 5V/V) ■Overshoot: < 4% (10V step, AV = 5V/V) ■Current limit/thermal shutdown protection ■Optional power disable function
Price information
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Applications/Examples of results
High voltage arbitrary waveform generator, LCR meter output driver, power FET driver, high capacitance load piezo element driver, VDSL line driver, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
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