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AD5312BRM bảng dữ liệu(PDF) 2 Page - Analog Devices |
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AD5312BRM bảng dữ liệu(HTML) 2 Page - Analog Devices |
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2 / 16 page  REV. 0 –2– AD5302/AD5312/AD5322–SPECIFICATIONS (V DD = +2.5 V to +5.5 V; VREF = +2 V; RL = 2 k to GND; CL = 200 pF to GND; all specifications TMIN to TMAX unless otherwise noted.) B Version 2 Parameter 1 Min Typ Max Units Conditions/Comments DC PERFORMANCE 3, 4 AD5302 Resolution 8 Bits Relative Accuracy ±0.15 ±1LSB Differential Nonlinearity ±0.02 ±0.25 LSB Guaranteed Monotonic by Design Over All Codes AD5312 Resolution 10 Bits Relative Accuracy ±0.5 ±3LSB Differential Nonlinearity ±0.05 ±0.5 LSB Guaranteed Monotonic by Design Over All Codes AD5322 Resolution 12 Bits Relative Accuracy ±2 ±12 LSB Differential Nonlinearity ±0.2 ±1 LSB Guaranteed Monotonic by Design Over All Codes Offset Error ±0.4 ±3 % of FSR See Figures 2 and 3 Gain Error ±0.15 ±1 % of FSR See Figures 2 and 3 Lower Deadband 10 60 mV See Figures 2 and 3 Offset Error Drift 5 –12 ppm of FSR/ °C Gain Error Drift 5 –5 ppm of FSR/ °C Power Supply Rejection Ratio 5 –60 dB ∆V DD = ± 10% DC Crosstalk 5 30 µV DAC REFERENCE INPUTS 5 VREF Input Range 1 VDD V Buffered Reference Mode 0VDD V Unbuffered Reference Mode VREF Input Impedance >10 M Ω Buffered Reference Mode 180 k Ω Unbuffered Reference Mode, Input Impedance = RDAC Reference Feedthrough –90 dB Frequency = 10 kHz Channel-to-Channel Isolation –80 dB Frequency = 10 kHz OUTPUT CHARACTERISTICS 5 Minimum Output Voltage 6 0.001 V min This is a measure of the minimum and maximum Maximum Output Voltage 6 VDD – 0.001 V max drive capability of the output amplifier. DC Output Impedance 0.5 Ω Short Circuit Current 50 mA VDD = +5 V 20 mA VDD = +3 V Power-Up Time 2.5 µs Coming Out of Power-Down Mode. VDD = +5 V 5 µs Coming Out of Power-Down Mode. VDD = +3 V LOGIC INPUTS 5 Input Current ±1 µA VIL, Input Low Voltage 0.8 V VDD = +5 V ± 10% 0.6 V VDD = +3 V ± 10% 0.5 V VDD = +2.5 V VIH, Input High Voltage 2.4 V VDD = +5 V ± 10% 2.1 V VDD = +3 V ± 10% 2.0 V VDD = +2.5 V Pin Capacitance 2 3.5 pF POWER REQUIREMENTS VDD 2.5 5.5 V IDD Specification Is Valid for All DAC Codes IDD (Normal Mode) Both DACs Active and Excluding Load Currents VDD = +4.5 V to +5.5 V 300 450 µA Both DACs in Unbuffered Mode. VIH = VDD and VDD = +2.5 V to +3.6 V 230 350 µAV IL = GND. In Buffered Mode, extra current is typically x µA per DAC where x = 5 µA + V REF/RDAC. IDD (Full Power-Down) VDD = +4.5 V to +5.5 V 0.2 1 µA VDD = +2.5 V to +3.6 V 0.05 1 µA NOTES 1See Terminology. 2Temperature range: B Version: –40 °C to +105°C. 3DC specifications tested with the outputs unloaded. 4Linearity is tested using a reduced code range: AD5302 (Code 8 to 248); AD5312 (Code 28 to 995); AD5322 (Code 115 to 3981). 5Guaranteed by design and characterization, not production tested. 6In order for the amplifier output to reach its minimum voltage, Offset Error must be negative. In order for the amplifier output to reach its maximum voltage, VREF = VDD and “Offset plus Gain” Error must be positive. Specifications subject to change without notice. |
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