AD8142-EVALZ Product Details
The AD8141 and AD8142-EVALZ are triple, low cost, differential or single-ended-input-to-differential-output drivers. Each amplifierhas a fixed gain of 2 to compensate for the attenuation of the line termination resistors. The AD8141 and AD8142-EVALZ arespecifically designed for RGB signals but can be used for anytype of signals. The amplifiers have very fast slew rate andsettling time while being manufactured on a cost effectiveCMOS process. They are optimized for high resolution videoperformance with a 0.1 dB flatness of 65 MHz, which allowsdriving high resolution video over any type of UTP cable.
The drivers have an internal common-mode feedback loop that provides output amplitude and phase matching, achieving−50 dB balance error at 50 MHz and thereby suppressing even-order harmonics and minimizing radiated electromagneticinterference (EMI).
The AD8142-EVALZ includes a unique sync-on-common-mode featurethat allows the user to transmit balanced horizontal and vertical video sync signals over the three common-mode channels.Additionally, the AD8141 and AD8142-EVALZ both have a disable feature that, when asserted, produces high-Z outputs, allowing line isolation and easy multiplexing.
The AD8141 and AD8142-EVALZ are available in a 24-lead 4 mm × 4 mm LFCSP and operate over a temperature range of −40°C to +85°C.They can be used with the AD8145 triple differential-to-single-ended receiver, AD8123 triple equalizer, AD8120 triple delayline, and the AD8117 or AD8175 crosspoint switches to producea high resolution video distribution system.
Feature
- Triple, high speed differential drivers
- 255 MHz, −3 dB large signal bandwidth
- 65 MHz, 0.1 dB flatness
- 1150 V/μs slew rate
- 12 ns settling time
- Single 5 V or split supply operation
- Fixed gain of 2
- Internal common-mode feedback network
- Output balance error −50 dB at 50 MHz
- AD8142 has integrated sync-on-common-mode circuitry
- High-Z output when disabled
- Differential-to-differential or single-ended-to-differential operation
- High isolation between amplifiers: −100 dB at 10 MHz
- Low power: 44 mA at 5 V
- Available in space-saving packaging: 4 mm × 4 mm LFCSP
Applications
- Keyboard-video-mouse (KVM) networking
- Video distribution
- Digital signage
- Security cameras
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