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AD5689RBRUZ Fiches technique(PDF) 4 Page - Analog Devices |
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AD5689RBRUZ Fiches technique(HTML) 4 Page - Analog Devices |
4 / 28 page AD5689R/AD5687R Data Sheet Rev. 0 | Page 4 of 28 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 Temperature Coefficient8, 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 Input Low Voltage (VINL) 0.3 × VLOGIC 0.3 × VLOGIC V Input High Voltage (VINH) 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 for A and B grades: −40°C to +105°C. 2 DC specifications tested with the outputs unloaded, unless otherwise noted. Upper dead band = 10 mV; it exists only when VREF = VDD with gain = 1 or when VREF/2 = VDD with gain = 2. Linearity is calculated using a reduced code range of 256 to 65,280 (AD5689R) and 12 to 4080 (AD5687R). 3 Guaranteed by design and characterization; not production tested. 4 Channel A can have an output current of up to 30 mA. Similarly, Channel B can have an output current of up to 30 mA, up to a junction temperature of 110°C. 5 VDD = 5 V. The devices include current limiting that is intended to protect them during temporary overload conditions. Junction temperature may be exceeded during current limit, but operation above the specified maximum operation junction temperature can 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 32). 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 is calculated as per the box method. See the Terminology section for more information. 10 Interface inactive. Both DACs active. DAC outputs unloaded. 11 Both DACs powered down. |
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