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DAC904E 데이터시트(PDF) 3 Page - Texas Instruments |
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DAC904E 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 23 page DAC904 3 SBAS095C www.ti.com ELECTRICAL CHARACTERISTICS (Cont.) At TA = +25°C, +VA = +5V, +VD = +5V, differential transformer coupled output, 50Ω doubly terminated, unless otherwise specified. DAC904U, E PARAMETER CONDITIONS MIN TYP MAX UNITS DYNAMIC PERFORMANCE (Cont.) Output Settling Time(2) to 0.1% 30 ns Output Rise Time(2) 10% to 90% 2 ns Output Fall Time(2) 10% to 90% 2 ns Glitch Impulse 3pV-s DC-ACCURACY Full-Scale Output Range(3)(FSR) All Bits HIGH, IOUT 2.0 20.0 mA Output Compliance Range –1.0 +1.25 V Gain Error With Internal Reference –10 ±1 +10 %FSR Gain Error With External Reference –10 ±2 +10 %FSR Gain Drift With Internal Reference ±120 ppmFSR/ °C Offset Error With Internal Reference –0.025 +0.025 %FSR Offset Drift With Internal Reference ±0.1 ppmFSR/ °C Power-Supply Rejection, +VA –0.2 +0.2 %FSR/V Power-Supply Rejection, +VD –0.025 +0.025 %FSR/V Output Noise IOUT = 20mA, RLOAD = 50Ω 50 pA/ √Hz Output Resistance 200 k Ω Output Capacitance IOUT, IOUT to Ground 12 pF REFERENCE Reference Voltage +1.24 V Reference Tolerance ±10 % Reference Voltage Drift ±50 ppmFSR/ °C Reference Output Current 10 µA Reference Input Resistance 1M Ω Reference Input Compliance Range 0.1 1.25 V Reference Small-Signal Bandwidth(4) 1.3 MHz DIGITAL INPUTS Logic Coding Straight Binary Latch Command Rising Edge of Clock Logic HIGH Voltage, VIH +VD = +5V 3.5 5 V Logic LOW Voltage, VIL +VD = +5V 0 1.2 V Logic HIGH Voltage, VIH +VD = +3V 2 3 V Logic LOW Voltage, VIL +VD = +3V 0 0.8 V Logic HIGH Current, IIH(5) +VD = +5V ±20 µA Logic LOW Current, IIL +VD = +5V ±20 µA Input Capacitance 5pF POWER SUPPLY Supply Voltages +VA +2.7 +5 +5.5 V +VD +2.7 +5 +5.5 V Supply Current(6) IVA 24 30 mA IVA, Power-Down Mode 1.1 2 mA IVD 815 mA Power Dissipation +5V, IOUT = 20mA 170 230 mW +3V, IOUT = 2mA 50 mW Power Dissipation, Power-Down Mode 45 mW Thermal Resistance, θ JA SO-28 75 °C/W TSSOP-28 50 °C/W NOTES: (1) At output IOUT, while driving a virtual ground. (2) Measured single-ended into 50Ω Load. (3) Nominal full-scale output current is 32x IREF; see Application Section for details. (4) Reference bandwidth depends on size of external capacitor at the BW pin and signal level. (5) Typically 45 µA for the PD pin, which has an internal pull-down resistor. (6) Measured at fCLOCK = 50MSPS and fOUT = 1.0MHz. |
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