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LTC1450LCG Datasheet(PDF) 3 Page - Linear Technology |
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LTC1450LCG Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  3 LTC1450/LTC1450L VCC = 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L), VOUT unloaded, REFOUT = REFHI, REFLO = GND = X1/X2, TA = TMIN to TMAX, unless otherwise noted. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Input (REFLO = GND) REFHI Input Range VREFHI ≤ VCC – 1.5V q VCC/2 V REFHI Input Resistance q 818 30 k Ω REFHI Input Capacitance 15 pF Power Supply VCC Positive Supply Voltage For Specified Performance, LTC1450L q 2.7 5.5 V LTC1450 q 4.5 5.5 V ICC Supply Current 4.5V ≤ VCC ≤ 5.5V (Note 4) LTC1450 q 300 400 620 µA 2.7V ≤ VCC ≤ 5.5V (Note 4) LTC1450L q 150 250 500 µA Op Amp DC Performance Short-Circuit Current Low VOUT Shorted to GND q 100 mA Short-Circuit Current High VOUT Shorted to VCC q 120 mA Output Impedance to GND Input Code = 0 q 40 120 Ω AC Performance Voltage Output Slew Rate (Note 2) q 0.5 1.0 V/ µs Voltage Output Settling Time (Notes 2, 3) to ±0.5LSB 14 µs Digital Feedthrough LDAC = 1 5 (nV)(s) AC Feedthrough REFHI = 1kHz, 2VP–P –95 dB SINAD Signal-to-Noise + Distortion REFHI = 1kHz, 2VP–P (Code: All 1’s) 85 dB Digital Inputs VIH Digital Input High Voltage VCC = 3V, LTC1450L q 2.2 V VCC = 5V, LTC1450 q 2.4 V VIL Digital Input Low Voltage VCC = 3V, LTC1450L q 0.8 V VCC = 5V, LTC1450 q 0.8 V VLTH Logic Threshold Voltage LTC1450L VCC/2 V ILEAK Digital Input Leakage VCC = 5V, VIN = GND to VCC q –10 10 µA CIN Digital Input Capacitance Guaranteed by Design. Not Subject to Test q 10 pF |
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