Differential Amplifier is optimized for video applications.
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Press Release Summary:
Model LT6552 3.3 V wideband difference amplifier minimizes effects of high-frequency noise pickup, allowing signals to be sent over long lines without corruption by external sources. Common mode rejection is >60 dB at 10 MHz. Unit comes in 3 x 3 mm DFN package and features 75 MHz -3 dB bandwidth, 600 V/µs slew rate, and ±70 mA output current, making it suitable for driving cables. Output swings rail-to-rail, providing maximum output dynamic range.
Original Press Release:
3.3V Differential Receiver Amp Optimized for Video Applications
MILPITAS, CA - September 24, 2003 - Linear Technology Corporation introduces the LT6552, a wideband difference amplifier. Offering excellent common mode rejection at high frequencies (CMRR > 60dB at 10MHz), the LT6552 minimizes the effects of high-frequency noise pickup, allowing 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, this versatile amplifier can be used in differential or single-ended input configurations.
"The LT6552 is the only high speed difference amplifier on the market to offer true single supply operation with specifications guaranteed at 3.3V," according to design manager Bill Jett. "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."
The LT6552 features a 75MHz -3dB bandwidth, 600V/us slew rate, and ±70mA output current, making it ideal for driving cables. The input voltage range includes ground simplifying single supply operation. The output swings rail-to-rail, providing maximum output dynamic range. In addition, shutdown feature is included to reduce power dissipation. The LT6552 is ideal for use as a twisted pair or differential line receiver, coax cable driver, twisted pair to coax cable converter and cable-tap amplifier for loop through connections in a wide variety of video applications.
The LT6652 is offered in the space-saving 3mm x 3mm DFN package. It is specified for operation over the industrial and commercial temperature ranges. Pricing starts at $1.10 each in 1,000-piece quantities.
Summary of Features: LT6552
Differential or Single-Ended Gain Block
Output Swings Rail-to-Rail
Input Common Mode Range Includes Ground
600V/us Slew Rate
-3dB Bandwidth = 75MHz, AV = ±2
CMRR at 10MHz: >60dB
High Output Drive: ±70mA
Specified on 3.3V, 5V and ±5V Supplies
Power Shutdown to 300µA
Operating Temperature Range: -40°C to 85°C
Tiny 3mm x 3mm x 1mm DFN Package
Company Background
Linear Technology Corporation was founded in 1981 as a manufacturer of high performance linear integrated circuits. Linear Technology products include operational, instrumentation and audio amplifiers; voltage regulators, power management devices, DC-DC converters and voltage references; comparators; monolithic filters; communications interface circuits; one-chip data acquisition sub-systems; pulse-width modulators and sample-and-hold devices; and high frequency devices. Applications for Linear Technology's high performance circuits include wireless and broadband telecommunications infrastructure, cellular telephones, networking products and satellite systems, notebook and desk top computers, computer peripherals, video/multimedia, industrial and medical instrumentation, automotive electronics, factory automation, process control, military and space systems, and high-end consumer products including digital cameras, MP3 players and other electronic products.
Note: LT, AND LTC are registered trademarks of Linear Technology Corp.
