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DAC7551IDRNT 数据表(PDF) 3 Page - Texas Instruments |
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DAC7551IDRNT 数据表(HTML) 3 Page - Texas Instruments |
3 / 18 page www.ti.com ELECTRICAL CHARACTERISTICS DAC7551 SLAS441 – MARCH 2005 V DD = 2.7 V to 5.5 V, VREFH = VDD, VREFL = GND, RL = 2 kΩ to GND; CL = 200 pF to GND; all specifications –40°C to 105°C, unless otherwise specified PARAMETER TEST CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE(1) Resolution 12 Bits Relative accuracy ±0.35 ±1 LSB Differential nonlinearity Specified monotonic by design ±0.08 ±0.5 LSB Offset error ±12 mV Zero-scale error All zeroes loaded to DAC register ±12 mV Gain error ±0.15 %FSR Full-scale error ±0.5 %FSR Zero-scale error drift 7 µV/°C Gain temperature coefficient 3 ppm of FSR/°C PSRR VDD = 5 V 0.75 mV/V OUTPUT CHARACTERISTICS(2) Output voltage range 2 x VREFL VREFH V Output voltage settling time RL = 2 kΩ; 0 pF < CL < 200 pF 5 µs Slew rate 1 V/µs Capacitive load stability RL = ∞ 470 pF RL = 2 kΩ 1000 Digital-to-analog glitch impulse 1 LSB change around major carry 0.1 nV-s Digital feedthrough 0.1 nV-s Output noise density (10-kHz offset 70 nV/rtHz frequency) Total harmonic distortion FOUT = 1 kHz, FS = 1 MSPS, BW = 20 kHz –85 dB DC output impedance 1 Ω Short-circuit current VDD = 5 V 50 mA VDD = 3 V 20 Power-up time Coming out of power-down mode, VDD = 5 V 15 µs Coming out of power-down mode, VDD = 3 V 15 REFERENCE INPUT VREFH, Input range 0 VDD V VREFL, Input range VREFL < VREFH 0 GND VDD V Reference input impedance 100 k Ω Reference current VREF = VDD = 5 V 130 250 µA VREF = VDD = 3 V 65 123 LOGIC INPUTS(2) Input current ±1 µA VIN_L, Input low voltage VDD = 5 V 0.3 VDD V VIN_H, Input high voltage VDD = 3 V 0.7 VDD V Pin capacitance 3 pF (1) Linearity tested using a reduced code range of 30 to 4065; output unloaded. (2) Specified by design and characterization, not production tested. 3 |
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