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LTC1458 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1458 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 12 page  3 LTC1458/LTC1458L ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = TMIN to TMAX. VCC = 4.5V to 5.5V (LTC1458), 2.7V to 5.5V (LTC1458L), X1/X2 = REFLO = GND, REFHI = REFOUT, VOUT unloaded, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Input Capacitance 15 pF Short-Circuit Current REFOUT Shorted to GND q 45 120 mA Power Supply VCC Positive Supply Voltage For Specified Performance, LTC1458 q 4.5 5.5 V LTC1458L q 2.7 5.5 V ICC Supply Current 4.5V ≤ VCC ≤ 5.5V (Note 5) , LTC1458 q 1100 2400 µA 2.7V ≤ VCC ≤ 5.5V (Note 5), LTC1458L q 800 2000 µA Op Amp DC Performance Short-Circuit Current Low VOUT Shorted to GND q 60 120 mA Short-Circuit Current High VOUT Shorted to VCC q 70 120 mA Output Impedance to GND Input Code = 0 q 40 160 Ω AC Performance Voltage Output Slew Rate (Note 3) q 0.5 1.0 V/ µs Voltage Output Settling Time (Notes 3, 4) to ±0.5LSB 14 µs Digital Feedthrough 0.3 nV • s AC Feedthrough REFHI = 1kHz, 2VP-P, (Code: All 0s) – 95 dB SINAD Signal-to-Noise + Distortion REFHI = 1kHz, 2VP-P, (Code: All 1s) 85 dB The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = TMIN to TMAX. VCC = 5V (LTC1458), 3V (LTC1458L), unless otherwise noted. LTC1458 LTC1458L SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Digital I/O VIH Digital Input High Voltage q 2.4 2.0 V VIL Digital Input Low Voltage q 0.8 0.6 V VOH Digital Output High Voltage IOUT = – 1mA q VCC – 1.0 VCC – 0.7 V VOL Digital Output Low Voltage IOUT = 1mA q 0.4 0.4 V ILEAK Digital Input Leakage VIN = GND to VCC q ±10 ±10 µA CIN Digital Input Capacitance Guaranteed by Design, q 10 10 pF Not Subject to Test Switching t1 DIN Valid to CLK Setup q 40 60 ns t2 DIN Valid to CLK Hold q 00 ns t3 CLK High Time q 40 60 ns t4 CLK Low Time q 40 60 ns t5 CS/LD Pulse Width q 50 80 ns t6 LSB CLK to CS/LD q 40 60 ns t7 CS/LD Low to CLK q 20 30 ns t8 DOUT Output Delay CLOAD = 15pF q 150 220 ns t9 CLK Low to CS/LD Low q 20 30 ns |
Similar Part No. - LTC1458_1 |
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Similar Description - LTC1458_1 |
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