Programmable differential amplifiers are ‘world’s first’

Texas Instruments (TI) has unveiled what it claims are the world's first programmable differential amplifiers (PDAs).

The 2.4GHz LMH6881 single channel PDA and 2.4GHz LMH6882 dual channel PDA are designed to provide optimised noise, distortion and bandwidth performance over a 6 to 26dB gain range, simplifying the way engineers design with differential amplifiers. According to TI, its PDAs offer more consistent noise and distortion performance over the entire gain range compared to traditional digital variable gain amplifiers. The programmable gain control in the LMH6881 and LMH6882 is said to eliminates the need for gain setting resistors and their associated mismatch errors, enabling more robust systems for applications, such as medical, test and measurement, military, wireless communications and microwave backhaul.