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AD5684RARUZ bảng dữ liệu(PDF) 4 Page - Analog Devices |
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4 / 32 page AD5686R/AD5685R/AD5684R Data Sheet Rev. 0 | Page 4 of 32 A Grade1 B Grade1 Parameter Min Typ Max Min Typ Max Unit Test Conditions/Comments REFERENCE OUTPUT Output Voltage7 2.4975 2.5025 2.4975 2.5025 V At ambient Reference TC8, 9 5 20 2 5 ppm/°C See the Terminology section Output Impedance3 0.04 0.04 Ω Output Voltage Noise3 12 12 µV p-p 0.1 Hz to 10 Hz Output Voltage Noise Density3 240 240 nV/√Hz At ambient; f = 10 kHz, CL = 10 nF Load Regulation Sourcing3 20 20 µV/mA At ambient Load Regulation Sinking3 40 40 µV/mA At ambient Output Current Load Capability3 ±5 ±5 mA VDD ≥ 3 V Line Regulation3 100 100 µV/V At ambient Long-Term Stability/Drift3 12 12 ppm After 1000 hours at 125°C Thermal Hysteresis3 125 125 ppm First cycle 25 25 ppm Additional cycles LOGIC INPUTS3 Input Current ±2 ±2 µA Per pin VINL, Input Low Voltage 0.3 × VLOGIC 0.3 × VLOGIC V VINH, Input High Voltage 0.7 × VLOGIC 0.7 × VLOGIC V Pin Capacitance 2 2 pF LOGIC OUTPUTS (SDO)3 Output Low Voltage, VOL 0.4 0.4 V ISINK = 200 μA Output High Voltage, VOH VLOGIC − 0.4 VLOGIC − 0.4 V ISOURCE = 200 μA Floating State Output Capacitance 4 4 pF POWER REQUIREMENTS VLOGIC 1.8 5.5 1.8 5.5 V ILOGIC 3 3 µA VDD 2.7 5.5 2.7 5.5 V Gain = 1 VDD VREF + 1.5 5.5 VREF + 1.5 5.5 V Gain = 2 IDD VIH = VDD, VIL = GND, VDD = 2.7 V to 5.5 V Normal Mode10 0.59 0.7 0.59 0.7 mA Internal reference off 1.1 1.3 1.1 1.3 mA Internal reference on, at full scale All Power-Down Modes11 1 4 1 4 µA −40°C to +85°C 6 6 µA −40°C to +105°C 1 Temperature range: A and B grade: −40°C to +105°C. 2 DC specifications tested with the outputs unloaded, unless otherwise noted. Upper dead band = 10 mV and exists only when VREF = VDD with gain = 1 or when VREF/2 = VDD with gain = 2. Linearity calculated using a reduced code range of 256 to 65,280 (AD5686R), 64 to 16,320 (AD5685R), and 12 to 4080 (AD5684R). 3 Guaranteed by design and characterization; not production tested. 4 Channel A and Channel B can have a combined output current of up to 30 mA. Similarly, Channel C and Channel D can have a combined output current of up to 30 mA up to a junction temperature of 110°C. 5 VDD = 5 V. The device includes current limiting that is intended to protect the device during temporary overload conditions. Junction temperature can be exceeded during current limit. Operation above the specified maximum operation junction temperature may impair device reliability. 6 When drawing a load current at either rail, the output voltage headroom with respect to that rail is limited by the 25 Ω typical channel resistance of the output devices. For example, when sinking 1 mA, the minimum output voltage = 25 Ω × 1 mA = 25 mV (see Figure 34). 7 Initial accuracy presolder reflow is ±750 µV; output voltage includes the effects of preconditioning drift. See the Internal Reference Setup section. 8 Reference is trimmed and tested at two temperatures and is characterized from −40°C to +105°C. 9 Reference temperature coefficient calculated as per the box method. See the Terminology section for further information. 10 Interface inactive. All DACs active. DAC outputs unloaded. 11 All DACs powered down. |
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