TQ6113

The TQ6113 and TQ6114 are monolithic 8-bit GaAs DACs which contain input protection,a 9-wide master/slave latch array,eight binary-weighted current sources,clock and blanking circuitry.The GIGADAC's "blanking" capability makes it convenient to use this device in high-speed graphic displays.Complementary 1.125V(maximum) output swing when driving a 50transmission line terminated by 50 are provided.50 reverse terminations are provided on the IC TQ6113 for best setting performance.The DAC ICs are fabricated using TriQuint's one micron gate depletionmode GaAs MESFET process,which features "airbridge" second-layer wiring for minimum interconnect capacitance,mim capacitors and nichrome resistors.Due to the high inherent speed of the GaAs process,the DACs TQ6113 offers operation at clock rates of at leaset 600 MHz and 1000 MHz,with 350 ps rise and fall times(10%-90%),rapid setting times(1.3 ns to 1.6%),and low glitch impulse(<25 pV-sec).

Features of the TQ6113 and TQ6114 are:(1)fast conversion rate:TQ6113-600 Ms/s and TQ6114-1000 Ms/s;(2)8-bit resolution;(3)1.125V output swing into 50;(4)+1/-1.5V output compliance range;(5)0.2% differential non-linearity(max.);(6)350ps rise & fall times(10% to 90%);(7)25pV-sec glitch impulse;(8)GaAs-ECL digital inputs;(9)44-pin surface mount ceramic package.And the TQ6113 and TQ6114 also can be used in high resolution display generation,waveform and signal synthesis,video signal reconstruction and high speed A/D conversion.