AD8109ASTZ

The AD8109ASTZ from Analog Devices is a high-speed 8x8 buffered video crosspoint switch matrix designed for routing analog video signals in professional and industrial applications. It features a -3 dB bandwidth of 250 MHz, a fixed gain of 2 V/V, and channel switch times under 25 ns with 1% settling. The device offers excellent video performance with 0.02% differential gain and 0.02° differential phase error, along with 60 MHz gain flatness within 0.1 dB. Crosstalk is typically -83 dB at 5 MHz, and off isolation is -98 dB at 5 MHz. The AD8109ASTZ operates from dual supplies of ±4.5 V to ±5.5 V and consumes only 45 mA typical supply current. The buffered inputs and outputs can drive 150 Ω loads directly. The device is packaged in an 80-lead LQFP (12x12 mm) and operates over the industrial temperature range of -40°C to +85°C. It supports serial or parallel programming and allows daisy-chaining to larger switch arrays. The AD8109ASTZ is suitable for composite video (NTSC, PAL, SECAM), component video (YUV, RGB), compressed video, and 3-level digital video (HDB3) applications. Its high ESD rating of 4000 V HBM ensures robust operation in demanding environments. Surface mount assembly is used with the 80-LQFP package.