Programmable Differential Amplifiers

Texas Instruments has developed a new breed of amplifier, the programmable differential amplifier (PDA), combining the best of fully differential amplifiers (FDAs) and variable gain amplifiers (VGAs).

The LMH688x provide optimized noise, distortion, and bandwidth performance over a 6 dB to 26 dB gain range, giving system designers a single device for use in many applications. Now engineers can easily modify designs by varying gain without having to change external resistors, choose different amplifiers, or reconfigure and optimize each gain stage, changing the way they design with differential amplifiers.

Designing with PDAs increases flexibility and significantly reduces design time, solution size, and BOM cost for a broad range of applications including medical, test and measurement, military, wireless communications, and microwave backhaul.

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