LTC1745 W UWTI I G DIAGRA N ANALOG INPUT t3 t t 2 1 ENCODE t6 t4 DATA (N – 5) DATA (N – 4) DATA (N – 3) DATA D11 TO D0 D11 TO D0 D11 TO D0 t5 t5 CLKOUT t7 t8 OE DATA N DATA D11 TO D0, OF AND CLKOUT 1745 TD UUWFU CTIO AL BLOCK DIAGRA OVDD 0.5V TO 5V A + IN 0.1µF 0.1µF OF ±1V 12 D11 DIFFERENTIAL S/H 12-BIT OUTPUT • • ANALOG INPUT AMP PIPELINED ADC LATCHES • A – D0 IN CLKOUT SENSE OGND BUFFER VDD RANGE 5V SELECT 1µF 1µF 1µF DIFF AMP VCM GND 2.35VREF CONTROL LOGIC 4.7µF 1745 BD REFLB REFHA REFLA REFHB ENC ENC MSBINV OE 4.7µF 0.1µF 0.1µF DIFFERENTIAL ENCODE INPUT 1µF 1µF 1745f 9
