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LTC1749IFW Datasheet(PDF) 4 Page - Linear Technology |
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LTC1749IFW Datasheet(HTML) 4 Page - Linear Technology |
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4 / 20 page  4 LTC1749 1749f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS t0 ENC Period (Note 9) q 12.5 2000 ns t1 ENC High (Note 8) q 6 1000 ns t2 ENC Low (Note 8) q 6 1000 ns t3 Aperture Delay (Note 8) 0 ns t4 ENC to CLKOUT Falling CL = 10pF (Note 8) q 1 2.4 4 ns t5 ENC to CLKOUT Rising CL = 10pF (Note 8) t1 + t4 ns For 80Msps 50% Duty Cycle CL = 10pF (Note 8) q 7.25 8.65 10.25 ns t6 ENC to DATA Delay CL = 10pF (Note 8) q 2 4.9 7.2 ns t7 ENC to DATA Delay (Hold Time) (Note 8) q 1.4 3.4 4.7 ns t8 ENC to DATA Delay (Setup Time) CL = 10pF (Note 8) t0 – t6 ns For 80Msps 50% Duty Cycle CL = 10pF (Note 8) q 5.3 7.6 10.5 ns t9 CLKOUT to DATA Delay (Hold Time), (Note 8) q 6ns 80Msps 50% Duty Cycle t10 CLKOUT to DATA Delay (Setup Time), CL = 10pF (Note 8) q 2.1 ns 80Msps 50% Duty Cycle Data Latency 5 cycles The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) TI I G CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Positive Supply Voltage 4.75 5.25 V IDD Positive Supply Current q 290 338 mA PDIS Power Dissipation q 1.45 1.69 W OVDD Digital Output Supply Voltage 0.5 VDD V The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) POWER REQUIRE E TS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIH High Level Input Voltage VDD = 5.25V, MSBINV and PGA q 2.4 V VIL Low Level Input Voltage VDD = 4.75V, MSBINV and PGA q 0.8 V IIN Digital Input Current VIN = 0V to VDD q ±10 µA CIN Digital Input Capacitance MSBINV and PGA Only 1.5 pF VOH High Level Output Voltage OVDD = 4.75V IO = –10µA 4.74 V IO = – 200µA q 4 4.74 V VOL Low Level Output Voltage OVDD = 4.75V IO = 160µA 0.05 V IO = 1.6mA q 0.1 0.4 V ISOURCE Output Source Current VOUT = 0V – 50 mA ISINK Output Sink Current VOUT = 5V 50 mA The q indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) DIGITAL I PUTS A D DIGITAL OUTPUTS |
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