Low power consumption, high power supply voltage range 70MHz fully differential amplifier 'THS4561'
Provides a simple interface to differential output required by high-precision ADCs from single-ended sources. It offers excellent DC accuracy, low noise, and ultra-low harmonic distortion, making it ideal for data acquisition systems that demand the best signal-to-noise ratio (SNR), spurious-free dynamic range (SFDR), and high precision through the combination of amplifiers and ADCs. It supplies the necessary negative rail input when interfacing from a DC-coupled ground midpoint source signal to a single-supply differential input ADC. Ultra-low DC error and drift terms support 16-bit to 20-bit successive approximation register (SAR) input requirements. The power supply requirements are stringent, with a flexible output common mode setting in the range of 2.85V to 12.6V, accommodating a wide range of ADC input/DAC output requirements. It is available in an 8-pin VSSOP package, and evaluation modules are also provided.
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basic information
■Bandwidth: 70MHz (G = 1V/V) ■Differential output slew rate: 130V/μs ■Gain bandwidth product: 60MHz ■Negative rail input (NRI) ■Rail-to-rail output (RRO) ■Wide output common mode control range ■Single supply voltage operating range: 2.85V to 12.6V ■Trimming supply current: 830μA (at ±5V) ■25°C input offset: ±200μV (maximum) ■Input offset voltage drift: ±2μV/°C (maximum) ■Differential input voltage noise: 4.5nV/√Hz ■Ultra-low 50Hz 1/f voltage noise corner ■Ultra-low harmonic distortion * HD2: -115dBc (2VPP, at 100kHz) * HD3: 110dBc (2VPP, at 100kHz) ■Step response settling to within 0.01% for less than 4V: < 100ns
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Applications/Examples of results
6-bit to 20-bit differential high-speed SAR driver, differential active filter, differential transimpedance amplifier, high-output amplitude PCM audio DAC output, ultrasonic differential TGC 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/】
