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LTC1664 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1664 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  3 LTC1664 ELECTRICAL C C HARA TERISTICS TI I G CHARACTERISTICS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (See Figure 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VREF ≤ VCC, VOUT unloaded, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC = 4.5V to 5.5V t1 DIN Valid to SCK Setup q 40 15 ns t2 DIN Valid to SCK Hold q 0 –11 ns t3 SCK High Time (Note 6) q 30 5 ns t4 SCK Low Time (Note 6) q 30 7 ns t5 CS/LD Pulse Width (Note 6) q 80 30 ns t6 LSB SCK High to CS/LD High (Note 6) q 30 4 ns t7 CS/LD Low to SCK High (Note 6) q 80 26 ns t8 DOUT Propagation Delay CLOAD = 15pF (Note 6) q 526 80 ns t9 SCK Low to CS/LD Low (Note 6) q 20 0 ns t10 CLR Pulse Width (Note 6) q 100 37 ns t11 CS/LD High to SCK Positive Edge (Note 6) q 30 0 ns SCK Frequency Continuous Square Wave (Note 6) q 5.00 MHz Continuous 23% Duty Cycle Pulse (Note 6) q 7.69 MHz Gated Square Wave (Note 6) q 16.7 MHz VCC = 2.7V to 5.5V t1 DIN Valid to SCK Setup (Note 6) q 60 20 ns t2 DIN Valid to SCK Hold (Note 6) q 0 –14 ns t3 SCK High Time (Note 6) q 50 8 ns t4 SCK Low Time (Note 6) q 50 12 ns t5 CS/LD Pulse Width (Note 6) q 100 30 ns DC Performance Short-Circuit Current Low VOUT = 0V, VCC = 5.5V, VREF = 5.1V, q 10 30 100 mA Code = Full Scale (Note 4) Short-Circuit Current High VOUT = VCC = 5.5V, VREF = 5.1V, Code = 0 (Note 4) q 10 27 120 mA AC Performance Voltage Output Slew Rate Rising (Notes 4, 5) 0.60 V/ µs Falling (Notes 4, 5) 0.25 V/ µs Voltage Output Settling Time To ±0.5LSB (Notes 4, 5) 30 µs Capacitive Load Driving 1000 pF Digital I/O VIH Digital Input High Voltage VCC = 2.7V to 5.5V q 2.4 V VCC = 2.7V to 3.6V q 2.0 V VIL Digital Input Low Voltage VCC = 4.5V to 5.5V q 0.8 V VCC = 2.7V to 5.5V q 0.6 V VOH Digital Output High Voltage IOUT = – 1mA, DOUT Only q VCC – 1 V VOL Digital Output Low Voltage IOUT = 1mA, DOUT Only q 0.4 V ILK Digital Input Leakage VIN = GND to VCC q ±10 µA CIN Digital Input Capacitance (Note 6) q 10 pF |
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