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AD9821KST Datasheet(PDF) 4 Page - Analog Devices |
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AD9821KST Datasheet(HTML) 4 Page - Analog Devices |
4 / 16 page REV. 0 –4– AD9821 ABSOLUTE MAXIMUM RATINGS With Respect Parameter To Min Max Unit AVDD1, AVDD2 AVSS –0.3 +3.9 V DVDD1, DVDD2 DVSS –0.3 +3.9 V DRVDD DRVSS –0.3 +3.9 V Digital Outputs DRVSS –0.3 DRVDD + 0.3 V DATACLK DVSS –0.3 DVDD + 0.3 V CLPOB, PBLK DVSS –0.3 DVDD + 0.3 V SCK, SL, SDATA DVSS –0.3 DVDD + 0.3 V VRT, VRB AVSS –0.3 AVDD + 0.3 V BYP1, VIN AVSS –0.3 AVDD + 0.3 V Junction Temperature 150 °C Lead Temperature 300 °C (10 sec) TIMING SPECIFICATIONS Parameter Symbol Min Typ Max Unit SAMPLE CLOCKS DATACLK Clock Period tCONV 25 25 ns DATACLK Hi/Low Pulsewidth tADC 11 12.5 ns CLPOB Pulsewidth * tCOB 220 Pixels Internal Clock Delay tID 3.0 ns DATA OUTPUTS Output Delay tOD 13 16 ns Output Hold Time tH 7.0 7.6 ns Pipeline Delay 9 Cycles SERIAL INTERFACE Maximum SCK Frequency fSCLK 10 MHz SL to SCK Setup Time tLS 10 ns SCK to SL Hold Time tLH 10 ns SDATA Valid to SCK Rising Edge Setup tDS 10 ns SCK Falling Edge to SDATA Valid Hold tDH 10 ns SCK Falling Edge to SDATA Valid Read tDV 10 ns *Minimum CLPOB pulsewidth is for functional operation only. Wider typical pulses are recommended to achieve low noise clamp performance. Specifications subject to change without notice. (CL = 20 pF, fSAMP = 40 MHz, Imager-Mode Timing in Figures 5 and 6, Serial Timing in Figures 7–9) ORDERING GUIDE Temperature Package Package Model Range Description Option AD9821KST –20 °C to +85°CThin Plastic ST-48 Quad Flatpack (LQFP) THERMAL CHARACTERISTICS Thermal Resistance 48-Lead LQFP Package θ JA = 56 °C/W CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD9821 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. |
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