RGBDAC3404A

The RGBDAC3404A combines three video speed 4-bit digital-to-analog converters, three static RAM arrays organized 16*4 and all the control lines necessary for a full graphics/color monitor interface. All this is contrained in a single internally calibrated and adjustment free low power COMS/TTL compatible hybrid. In a typical application, each of three independent red, greenn and blue analog outputs will drive a 75 ohm terminated coax that supplies a high resolution video monitor with a palette of 4098 colors. The device can be directly interfaced to CMOS, HCT, TTL and advanced TTL logic families.

There are some RGBDAC3404A features as follows: (1)low power CMOS circuitry; (2)4096 color palette; (3)3 video DACs; (4)update rates to 60 MHz; (5)composite blanking signals; (6)TTL/CMOS compatible inputs; (7)75 ohm RGB outputs; (8)single +5 V supply operation; (9)small size 24-pin DIP; (10)adjustment free.

The following is about the RGBDAC3404A absolute maximum ratings: (1)supply voltage, VD-VSS: 6 Vdc max; (2)suppply current (75 loads): 200 mA max; (3)drive into any digital input (clamped): ±10 mA max; (4)output voltage compliance range (each channel): -0.3 to +2.5 V instantaneous; (5)logic input voltage range "0": VSS-0.3 min Vdc; (6)logic input voltage range "1": VDD+0.3 max Vdc; (7)ambient operating temperature range: 0 to +70; (8)ambient storage temperature range: -55 to +125.