Product category: Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: OPA693
Edited by the Electronicstalk Editorial Team on 10 December 2003
Video amp claims
fixed-gain speed record
The OPA693 is an ultrawideband fixed-gain video buffer amplifier providing gains of +1, -1 or +2 using internal resistors
The OPA693 is an ultrawideband, fixed-gain video buffer amplifier providing gains of +1, -1 or +2 using internal resistors. The combination of high bandwidth (700MHz), high slew rate (2500V/us), and low supply current (13mA) makes the OPA693 an ideal video line driver or analogue-to-digital convertor input driver.
This article was originally published on Electronicstalk on 10 December 2003 at 8.00am (UK)
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'The OPA693 eclipses previous video line driver solutions, providing an unsurpassed pulse response for emerging high resolution RGB applications.
In addition to being the fastest +/-5V capable fixed-gain amplifier on the market, the OPA693 offers considerably improved DC and AC precision at lower pricing than competitive devices', said Michael Steffes, Strategic Marketing Manager for TI's High-Speed Signal Processing Group.
'Video applications will benefit from the exceptional pulse fidelity at high pixel rates offered by the 700MHz bandwidth and 2500V/us slew rate.
The OPA693 is also the only fixed gain of +2 video line driver in the above-250MHz speed range that is capable of operating on a single supply from +5 to +12V'.
The OPA693 features an optional disable function for further system power reduction.
Under normal operating conditions, the OPA693 uses only 13mA supply current.
The supply current drops to less than 170uA when the disable control pin is pulled low.
Depending on the external connections, the internal resistor network may be used to provide either a fixed gain of +2 video buffer or a +/-1 voltage buffer with better than 1% gain accuracy.
A new output stage architecture delivers high output current with a minimal headroom and crossover distortion, allowing exceptional single-supply operation.
Using a single +5V supply, the OPA693 can deliver a 2V peak-peak output swing with over 90mA drive current and 400 MHz bandwidth at a gain of +2.
The OPA693 is packaged in a SOT23-6 and an SO-8, and is available now from TI and its authorised distributors.
The device is priced from $1.30 in 1000-piece quantities (suggested resale pricing).
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