TQ6122

T R I Q U I N T S E M I C O N D U C T O R, I N C . BLANK B0 A0 B4 A4 B5 A5 B6 A6 B7 A7 (MSB) ECL INPUT BUFFERS MULTIPLEXER TQ6122 1 Gigasample/sec, 8-bit Digital-to-Analog Converter Features SELA V SS (-5 V) DGND D Q 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 dBc typical ECL-compatible inputs Synchronous blanking input 1.3 W power dissipation 44-pin multilayer ceramic package or unpackaged die TriQuint'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 complementary 1 V peak-to-peak swings into 50-ohm loads; on-chip 50ohm reverse terminations pr...