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AD7568BPZ-REEL Datasheet(PDF) 2 Page - Analog Devices |
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AD7568BPZ-REEL Datasheet(HTML) 2 Page - Analog Devices |
2 / 14 page –2– AD7568–SPECIFICATIONS1 Parameter AD7568B 2 Units Test Conditions/Comments ACCURACY Resolution 12 Bits 1 LSB = VREF/2 12 = 1.22 mV when V REF = 5 V Relative Accuracy ±0.5 LSB max Differential Nonlinearity ±0.9 LSB max All Grades Guaranteed Monotonic over Temperature Gain Error +25 °C ±4 LSBs max TMIN to TMAX ±5 LSBs max Gain Temperature Coefficient 2 ppm FSR/ °C typ 5 ppm FSR/ °C max Output Leakage Current IOUT1 @ +25 °C 10 nA max See Terminology Section TMIN to TMAX 200 nA max REFERENCE INPUT Input Resistance 5 k Ω min Typical Input Resistance = 7 k Ω 9k Ω max Ladder Resistance Mismatch 2 % max Typically 0.6% DIGITAL INPUTS VINH, Input High Voltage 2.4 V min VINL, Input Low Voltage 0.8 V max IINH, Input Current ±1 µA max CIN, Input Capacitance 10 pF max POWER REQUIREMENTS VDD Range 4.75/5.25 V min/V max Power Supply Sensitivity ∆Gain/∆V DD –75 dB typ IDD 300 µA max VINH = 4.0 V min, VINL = 0.4 V max 3.5 mA max VINH = 2.4 V min, VINL = 0.8 V max AC PERFORMANCE CHARACTERISTICS Parameter AD7568B 2 Units Test Conditions/Comments DYNAMIC PERFORMANCE Output Voltage Settling Time 500 ns typ To 0.01% of Full-Scale Range. DAC Latch Alternately Loaded with All 0s and All 1s. Digital to Analog Glitch Impulse 40 nV–s typ Measured with VREF = 0 V. DAC Register Alternately Loaded with All 0s and All 1s. Multiplying Feedthrough Error –66 dB max VREF = 20 V pk-pk, 10 kHz Sine Wave. DAC Latch Loaded with All 0s. Output Capacitance 60 pF max All 1s Loaded to DAC. 30 pF max All 0s Loaded to DAC. Channel-to-Channel Isolation –76 dB typ Feedthrough from Any One Reference to the Others with 20 V pk-pk, 10 kHz Sine Wave Applied. Digital Crosstalk 40 nV–s typ Effect of all 0s to all 1s Code Transition on Nonselected DACs. Digital Feedthrough 40 nV–s typ Feedthrough to Any DAC Output with FSIN High and Square Wave Applied to SDIN and SCLK. Total Harmonic Distortion –83 dB typ VREF = 6 V rms, 1 kHz Sine Wave. Output Noise Spectral Density @ 1 kHz 20 nV/ √Hz All 1s Loaded to the DAC. VREF = 0 V. Output Op Amp is AD OP07. NOTES 1Temperature range as follows: B Version: –40 °C to +85°C. 2All specifications also apply for V REF = +10 V, except relative accuracy which degrades to ± 1 LSB. Specifications subject to change without notice. (VDD = +4.75 V to +5.25 V; IOUT1 = IOUT2 = O V; VREF = +5 V; TA = TMIN to TMAX, unless otherwise noted) (These characteristics are included for Design Guidance and are not subject to test. DAC output op amp is AD843.) REV. C |
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