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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.