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Linear differential receiver amp suits video apps

Posted: 30 Sep 2003 ?? ?Print Version ?Bookmark and Share

Keywords:linear technology? lt6552? difference amplifier?

Linear Technology Corp. has introduced the LT6552 wideband difference amplifier. Offering CMRR of >60dB at 10MHz, the product minimizes the effects of high-frequency noise pickup to allow signals to be sent over long lines without fear of corruption by external noise sources or crosstalk.

Designed for video applications but also useful for general purpose signal processing, the amplifier can be used in differential or single-ended input configurations. It features a 75MHz -3dB bandwidth, 600V/?s slew rate, and 70mA output current. The input voltage range includes ground simplifying single supply operation, and the output swings rail-to-rail to provide maximum output dynamic range.

With a shutdown feature that reduces power dissipation, the LT6652 is offered in a 3-by-3mm DFN package, and is specified for operation over the industrial and commercial temperature ranges of -40C to 85C. Pricing starts at $1.10 each in 1,000-piece quantities.

Design Manager Bill Jett said, "The LT6552's high impedance inputs ease interfacing with finite source impedances thus preserving the excellent common mode rejection. A second set of inputs allows gain adjustment to help compensate for losses in the transmission line. It also gives dc control and allows easy level shifting of incoming signals."

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