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1.35GHz differential amplifiers for high-speed pipeline ADCs offer less noise, distortion

Posted: 06 Dec 2010 ?? ?Print Version ?Bookmark and Share

Keywords:differential amplifier? gain resistor? ADC?

A line of low-noise, low-distortion, 1.35GHz differential amplifiers for driving high-speed pipeline ADCs is now available from Maxim Integrated Products.

The company said the devices' integrated gain resistors make external feedback resistors redundant and reduce parasitics to allow higher bandwidths and improved THD performance using less space and cost.

The MAX9626, MAX9627 and MAX9628 are designed for driving 12- to 16-bit pipeline ADCs in applications such as communication, medical imaging, automatic test equipment, and high-performance instrumentation.

A coupling transformer or AC-coupling capacitors are no longer needed as users can set the output common mode through one of the input pins (VOCM). The wide output common-mode range and ability to accept negative input signals with single-supply operation allow the parts to interface with most ADC.

The devices come in a 3x3mm, 12-pin TQFN package rated for temperatures ranging from -40�C to +85�C.

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