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Op amp merges unity-gain stability, wide SFDR, low noise, speed

Posted: 23 Nov 2005     Print Version  Bookmark and Share

The ADA4899-1 operational amplifier from Analog Devices Inc. (ADI) simultaneously minimizes two key sources of error in precision measurement applications: noise and distortion. According to the company, this op amp is the first unity-gain-stable device to reach voltage noise of just 1nV/rt-Hz, along with a wide spurious free dynamic range (SFDR) of 117dBc at 1MHz. Target applications for the device include radar, ultrasound and high-precision instrumentation.

High-end AC performance is matched by DC specifications such as 0.23mV maximum offset voltage and 15A maximum input bias current. The ADA4899-1 is available in a 3-by-3mm package as well as an 8-lead SOIC; the former has reduced lead inductance and better thermal characteristics in addition to smaller size. Pricing for the op amp is $1.89 each, in 1,000-piece orders.

- Bill Schweber


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Related Datasheets
Part Number Description Category
ADA4899-1 Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp Actives - Sensors and Transducers



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