Datasheet LTC1279 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 12-Bit, 600ksps Sampling A/D Converter with Shutdown |
| Pages / Page | 16 / 4 — W U. POWER REQUIRE E TS (Note 5). SYMBOL. PARAMETER. CONDITIONS. MIN. … |
| File Format / Size | PDF / 286 Kb |
| Document Language | English |
W U. POWER REQUIRE E TS (Note 5). SYMBOL. PARAMETER. CONDITIONS. MIN. TYP. MAX. UNITS. TI I G CHARACTERISTICS (Note 5) SYMBOL
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LTC1279
W U 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 ● 12 24 mA SHDN = 0V ● 1.7 3 mA ISS Negative Supply Current fSAMPLE = 600ksps, VSS = – 5V ● 0.12 0.30 mA PD Power Dissipation fSAMPLE = 600ksps ● 60 120 mW SHDN = 0V ● 8.5 15 mW
W U TI I G CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSAMPLE(MAX) Maximum Sampling Frequency ● 600 kHz tSAMPLE(MIN) Minimum Throughput Time ● 1.66 µs (Acquisition Time Plus Conversion Time) tCONV Conversion Time ● 1.4 1.6 µs tACQ Acquisition Time 160 ns t1 CS↓ to RD↓ Setup Time (Notes 9, 11) ● 0 ns t2 CS↓ to CONVST↓ Setup Time (Notes 9, 11) ● 20 ns t3 SHDN↑ to CONVST↓ Wake-Up Time (Note 11) 350 ns t4 CONVST Low Time (Notes 11, 13) ● 40 ns t5 CONVST↓ to BUSY↓ Delay CL = 100pF 50 110 ns Commercial ● 130 ns Industrial ● 140 ns t6 Data Ready Before BUSY↑ CL = 20pF ● 20 40 ns t7 Wait Time RD↓ After BUSY↑ Mode 2, (See Figure 14) (Note 9) ● – 20 ns t8 Data Access Time After RD↓ CL = 20pF (Note 9) 35 90 ns Commercial ● 110 ns Industrial ● 120 ns CL = 100pF 50 125 ns Commercial ● 150 ns Industrial ● 170 ns t9 Bus Relinquish Time (3k and 10pF Connected as Shown in Test Circuits) 10 30 75 ns Commercial ● 10 85 ns Industrial ● 10 90 ns t10 RD Low Time (Note 9) ● t8 ns t11 CONVST High Time (Notes 9, 13) ● 40 ns t12 Aperture Delay of Sample-and-Hold Jitter < 50ps 12 ns 4
W U 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 ● 12 24 mA SHDN = 0V ● 1.7 3 mA ISS Negative Supply Current fSAMPLE = 600ksps, VSS = – 5V ● 0.12 0.30 mA PD Power Dissipation fSAMPLE = 600ksps ● 60 120 mW SHDN = 0V ● 8.5 15 mW
W U TI I G CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSAMPLE(MAX) Maximum Sampling Frequency ● 600 kHz tSAMPLE(MIN) Minimum Throughput Time ● 1.66 µs (Acquisition Time Plus Conversion Time) tCONV Conversion Time ● 1.4 1.6 µs tACQ Acquisition Time 160 ns t1 CS↓ to RD↓ Setup Time (Notes 9, 11) ● 0 ns t2 CS↓ to CONVST↓ Setup Time (Notes 9, 11) ● 20 ns t3 SHDN↑ to CONVST↓ Wake-Up Time (Note 11) 350 ns t4 CONVST Low Time (Notes 11, 13) ● 40 ns t5 CONVST↓ to BUSY↓ Delay CL = 100pF 50 110 ns Commercial ● 130 ns Industrial ● 140 ns t6 Data Ready Before BUSY↑ CL = 20pF ● 20 40 ns t7 Wait Time RD↓ After BUSY↑ Mode 2, (See Figure 14) (Note 9) ● – 20 ns t8 Data Access Time After RD↓ CL = 20pF (Note 9) 35 90 ns Commercial ● 110 ns Industrial ● 120 ns CL = 100pF 50 125 ns Commercial ● 150 ns Industrial ● 170 ns t9 Bus Relinquish Time (3k and 10pF Connected as Shown in Test Circuits) 10 30 75 ns Commercial ● 10 85 ns Industrial ● 10 90 ns t10 RD Low Time (Note 9) ● t8 ns t11 CONVST High Time (Notes 9, 13) ● 40 ns t12 Aperture Delay of Sample-and-Hold Jitter < 50ps 12 ns 4
