Intersil Introduces Industry's Best ADC Driver for High Speed

The ISL55210 noise is negligible with respect to the ADC, so adding gain and filtering will have virtually no impact on a system's SNR. In addition, power requirements are a minimal 115mW – less than half the power used by alternative solutions. The device features very high slew rates, low noise and ultra-low distortion, and provides a 4GHz gain bandwidth with input noise of only 0.85nV/√Hz. The ISL55210 also provides consistent performance over a wide temperature and gain range. 

Distortion for the ISL55210 is a very low -94dBc at 140MHz (IM3). In addition, the amplifier's balanced architecture suppresses even-order harmonic distortion, which is usually caused by asymmetrical or unbalanced signal paths. The ISL55210 supports gains greater than two with minimal bandwidth or SFDR degradation. This significant performance margin is well suited to support Intersil's low power 500MSPS ISLA112P50 12-bit and the ISLA214P50 14-bit ADCs. The ISL55210 offers an independent output Vcm control that can be tied to the ADC Vcm reference or left to default to its internal 1.2V setting. For the lowest system power, an optional power shutdown is included to reduce off state power to <1mW. When disabled, the input stage includes a protection feature that prevents large signals present at the input from reaching the sensitive ADC inputs.

For time-domain applications, the ISL55210 offers 3Vpp maximum linear output with a differential slew rate of 5600V/micro-second, fast settling step response and a 700MHz full-power bandwidth.

External feedback and gain setting resistors provide the designer maximum flexibility and accuracy. Also releasing soon is a companion device, the ISL55211, with internally set feedback and gain elements providing a choice of three possible differential I/O gain settings. 

The ISL55210 is available now in a compact leadless TQFN-16 package. Pricing starts at $3.75 each in 1,000-piece quantities. For more information, please visit http://www.intersil.com/highspeedanalog/

To view a high-resolution downloadable photo, please visit Intersil's photo room at http://www.intersil.com/pressroom/hr_photos/20110328_ISL55210_hr.jpg. 

Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed signal and power management semiconductors. The Company's products address some of the fastest growing markets within the communications, computing, consumer and industrial industries. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at www.intersil.com.&nbsp;

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Source from: http://www.intersil.com/pressroom/releases/View.aspx?id=2077