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LTC1279CSW датащи(PDF) 4 Page - Linear Technology |
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LTC1279CSW датащи(HTML) 4 Page - Linear Technology |
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4 / 16 page ![]() 4 LTC1279 POWER REQUIRE E TS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Positive Supply Voltage (Notes 11, 12) Unipolar 4.95 5.25 V Bipolar 4.75 5.25 V VSS Negative Supply Voltage (Note 11, 12) Bipolar Only – 2.45 – 5.25 V IDD Positive Supply Current fSAMPLE = 600ksps q 12 24 mA SHDN = 0V q 1.7 3 mA ISS Negative Supply Current fSAMPLE = 600ksps, VSS = – 5V q 0.12 0.30 mA PD Power Dissipation fSAMPLE = 600ksps q 60 120 mW SHDN = 0V q 8.5 15 mW TI I G CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSAMPLE(MAX) Maximum Sampling Frequency q 600 kHz tSAMPLE(MIN) Minimum Throughput Time q 1.66 µs (Acquisition Time Plus Conversion Time) tCONV Conversion Time q 1.4 1.6 µs tACQ Acquisition Time 160 ns t1 CS ↓ to RD↓ Setup Time (Notes 9, 11) q 0ns t2 CS ↓ to CONVST↓ Setup Time (Notes 9, 11) q 20 ns t3 SHDN ↑ to CONVST↓ Wake-Up Time (Note 11) 350 ns t4 CONVST Low Time (Notes 11, 13) q 40 ns t5 CONVST ↓ to BUSY↓ Delay CL = 100pF 50 110 ns Commercial q 130 ns Industrial q 140 ns t6 Data Ready Before BUSY ↑ CL = 20pF q 20 40 ns t7 Wait Time RD ↓ After BUSY↑ Mode 2, (See Figure 14) (Note 9) q –20 ns t8 Data Access Time After RD ↓ CL = 20pF (Note 9) 35 90 ns Commercial q 110 ns Industrial q 120 ns CL = 100pF 50 125 ns Commercial q 150 ns Industrial q 170 ns t9 Bus Relinquish Time (3k and 10pF Connected as Shown in Test Circuits) 10 30 75 ns Commercial q 10 85 ns Industrial q 10 90 ns t10 RD Low Time (Note 9) q t8 ns t11 CONVST High Time (Notes 9, 13) q 40 ns t12 Aperture Delay of Sample-and-Hold Jitter < 50ps 12 ns |
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