
Analog Devices
GENERAL DESCRIPTION
The AD8145 is a triple, low cost, differential-to-single-ended receiver specifically designed for receiving red-green-blue (RGB) video signals over twisted pair cable or differential printed circuit board traces. It can also be used to receive any type of analog signal or high speed data transmission. Two auxiliary comparators with hysteresis are provided, which can be used to decode video sync signals that are encoded on the received common-mode voltages, to receive digital signals, or as general-purpose comparators. The AD8145 can be used in conjunction with the AD8133 or AD8134 triple differential drivers to provide a complete low cost solution for RGB over Category 5 UTP cable applications, including KVM.
FEATURES
High speed: 500 MHz, 2000 V/μs @ G = 1, VO = 2 V p-p
0.1 dB flatness out to 75 MHz
High CMRR: 69 dB @ 10 MHz
High differential input impedance: 1 MΩ
Wide input common-mode range: ± 3.8 V (±5 V supplies)
On-chip gain-setting resistors
Can be configured for gain of 1 or 2
Fast settling: 15 ns to 0.1% @ 2 V p-p
Low input referred noise: 13nV/√Hz
Disable feature
Small packaging: 32-lead, 5 mm × 5 mm LFCSP
APPLICATIONS
RGB video receivers
YPbPr video receivers
KVM (keyboard, video, mouse)
UTP (unshielded twisted pair) receivers