TQ6122 Datasheet | TriQuint Semiconductor

Features SELA V SS (-5 V) DGND BLANKING LOGIC D5 Q5 D6 Q6 D7 Q7 MASTER LATCH BLANK D0 QBLANK Q0 D4 Q4 CLK CLK + - BLANK D0 D4 Q4 BINARY-TO-N-OF-7 SEGMENT ENCODER S1 S2 S3 S4 S5 S6 S7 QS1 QS7 SLAVE LATCH VOUT VOUT + - V REF I BLANK I0 I4 IS1 IS7 50 50 A GND CURRENT-SOURCE ARRAY VSENSE IREF V AA (-5V) BLANK DISABLE VAA - 1 Gs/s conversion rate - 8-bit resolution - DC differential non-linearity 1/ LSB (0.2%) 2 - DC integral non-linearity 1 LSB (0.4%) MIXED SIGNAL PRODUCTS (EXT. CONTROL LOOP) FULL-SCALE ADJUST QBLANK Q0 BANDGAP REFERENCE - Settling time 2 ns to 0.4% (est.) - Spurious-free dynamic range (SFDR) 45 d Bc typical - ECL-patible inputs - Synchronous blanking input - 1.3 W power dissipation - 44-pin multilayer ceramic package or unpackaged die Tri Quint's TQ6122 GIGADAC™ is a monolithic, 8-bit digital-to-analog converter capable of conversion rates to at least 1000 Megasamples/ second. The TQ6122 DAC may be used for display generation, waveform and signal synthesis, and video signal reconstruction. The TQ6122 features a 2:1 data MUX at the input for ease of interface and offers synchronous blanking capability for maximum ease of use in video applications. It drives plementary 1 V peak-to-peak swings into 50-ohm loads; on-chip 50ohm reverse terminations provide extremely fast settling time. Due to the inherently high speed of Tri Quint's one-micron gate Enhancement / Depletion-mode gallium arsenide process, the TQ6122 offers guaranteed operation at clock rates of 1000 MHz, with typical room temperature conversion rates of 1.5 Gs/s without multiplexing and 1.3 Gs/s when using multiplexed inputs. The TQ6122 features output rise and fall times of 500 ps (10% - 90%), symmetric plementary output transitions, and glitch impulse values less than 10 p V/sec. When used for sine wave synthesis, typical spurious and harmonic free dynamic range is ≥45 d Bc. The TQ6122 may be retrofitted into designs which currently use Tri Quint's TQ6111, 2, 3, 4M DACs with...