AD9480ASUZ-250 Analog Devices Inc, AD9480ASUZ-250 Datasheet
AD9480ASUZ-250
Specifications of AD9480ASUZ-250
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AD9480ASUZ-250 Summary of contents
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FEATURES DNL = ± 0.25 LSB INL = ± 0.26 LSB Single 3.3 V supply operation (3 3.6 V) Power dissipation of 590 mW at 250 MSPS 1 V p-p analog input range Internal 1.0 V reference Single-ended ...
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AD9480 TABLE OF CONTENTS DC Specifications ............................................................................. 3 Digital Specifications........................................................................ 4 AC Specifications.............................................................................. 5 Switching Specifications .................................................................. 6 Timing Diagram ........................................................................... 6 Absolute Maximum Ratings............................................................ 7 Explanation of Test Levels ........................................................... 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. ...
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... T MIN clock inputs, unless otherwise noted. Table 1. Parameter RESOLUTION ACCURACY No Missing Codes Offset Error 1 Gain Error Differential Nonlinearity (DNL) AD9480BSUZ-250 AD9480ASUZ-250 Integral Nonlinearity (INL) TEMPERATURE DRIFT Offset Error Gain Error Reference REFERENCE Internal Reference Voltage 2 Output Current I Input Current 3 ...
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AD9480 DIGITAL SPECIFICATIONS AVDD = 3.3 V, DRVDD = 3 −40°C, T MIN clock inputs, unless otherwise noted. Table 2. Parameter CLOCK INPUTS (CLK+, CLK−) Differential Input 1 Common-Mode Voltage Input Resistance Input Capacitance 2 LOGIC INPUTS ...
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AC SPECIFICATIONS AVDD = 3.3 V, DRVDD = 3 –40°C, T MIN clock inputs, unless otherwise noted. Table 3. Parameter SIGNAL-TO-NOISE RATIO (SNR 19.7 MHz 70.1 MHz 170 MHz ...
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AD9480 SWITCHING SPECIFICATIONS AVDD = 3.3 V, DRVDD = 3.3 V, differential clock input, DCS enabled, unless otherwise noted. Table 4. Parameter CLOCK Maximum Conversion Rate Minimum Conversion Rate Clock Pulse Width High ( Clock Pulse Width Low ...
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ABSOLUTE MAXIMUM RATINGS Thermal impedance (θ 46.4°C/W (4-layer PCB). JA Table 5. Parameter Min Rating ELECTRICAL AVDD −0.5 V (With Respect to AGND) DRVDD −0.5 V (With Respect to DRGND) AGND −0.5 V (With Respect to DRGND) Digital ...
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AD9480 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS D0_C (LSB) D0_T (LSB CONNECT Table 7. Pin Function Descriptions Pin No. Mnemonic Description 1 CLK+ Input Clock—True 2 CLK− Input Clock—Complement 3 AVDD 3.3 V Analog Supply 4 AGND Analog ...
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TERMINOLOGY Analog Bandwidth The analog input frequency at which the spectral power of the fundamental frequency (as determined by the FFT analysis) is reduced by 3 dB. Aperture Delay The delay between the 50% point of the rising edge of ...
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AD9480 Signal-to-Noise and Distortion (SINAD) The ratio of the rms signal amplitude (set 1 dB below full scale) to the rms value of the sum of all other spectral components, including harmonics, but excluding dc. Signal-to-Noise Ratio (Without Harmonics) The ...
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TYPICAL PERFORMANCE CHARACTERISTICS AVDD, DRVDD = 3 25° –10 –20 –30 –40 –50 –60 –70 –80 – MHz Figure 4. FFT 250 MSPS 10.3 MHz @ ...
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AD9480 SFDR SNR 45 SINAD 100 150 SAMPLE CLOCK (MHz) Figure 10. SNR, SINAD, SFDR vs. Sample Clock Frequency SFDRdBFS SFDRdBc 10 65dB ...
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EXT REF INT REF 0 –1 –2 –3 –40 – TEMPERATURE ( ° C) Figure 16. Full-Scale Gain Error vs. Temperature 70.3 MHz @ −0.5 dBFS, 250 ...
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AD9480 0.30 0.25 0.20 0.15 0.10 0.05 0 –0.05 –0.10 –40 – TEMPERATURE (°C) Figure 22. Propagation Delay Adder vs. Temperature 900 800 700 600 500 400 300 200 100 Figure 23. LVDS Output ...
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EQUIVALENT CIRCUITS 16.7kΩ 16.7kΩ 150Ω VIN+ 1.2pF 25kΩ Figure 24. Analog Inputs AVDD 12kΩ CLK+ 150Ω 10kΩ Figure 25. Clock Inputs 30kΩ S1 Figure 26. S1 Input AVDD 150Ω VIN– 1.2pF 25kΩ 12kΩ CLK– 150Ω 10kΩ VDD Rev ...
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AD9480 APPLICATION NOTES The AD9480 uses a 1.5-bit per stage architecture. The analog inputs drive an integrated high bandwidth track-and-hold circuit that samples the signal prior to quantization by the 8-bit core. For ease of use, the part includes an ...
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The AD9480 can be easily configured for different full-scale ranges. See the Voltage Reference section for more information. Optimal performance is achieved with p-p analog input. SENSE = GND VIN+ 500mV 2.0V VIN– DIGITALOUT = ALL 1s ...
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AD9480 External Reference An external reference can be used for greater accuracy and temperature stability when required. The gain of the AD9480 can also be varied using this configuration. A voltage output DAC can be used to set VREF, providing ...
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AD9480 EVALUATION BOARD The AD9480 evaluation board offers an easy way to test the device. It requires a clock source, an analog input signal, and a 3.3 V power supply. The clock source is buffered on the board to provide ...
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AD9480 VOLTAGE REFERENCE The AD9480 has an internal 1 V reference mode. The ADC uses the internal 1 V reference as the default when SENSE is set to ground. An optional on-board external 1.0 V reference (ADR510) can be used ...
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EVALUATION BOARD BILL OF MATERIALS (BOM) Table 12. No. Quantity Reference Designator C6, C10 to C12, C17 to C23, C26 to C28, C31 to C33, C35 2 1 C13 3 4 C7, C14 to C16 4 ...
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AD9480 PCB SCHEMATICS 1 P1 GND 2 P2 VAMP 3 P3 GND 4 DRVDD P4 1 GND P1 2 AVDD P2 3 GND VCTRL GND S1 PWDN GND AVDD GND D6C D2C D6T D1T D1C D7C D7T ...
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Figure 42. PCB Schematic ( Rev Page AD9480 ...
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AD9480 PCB LAYERS Figure 43. PCB Top-Side Silkscreen Figure 44. PCB Top-Side Copper Routing Figure 45. PCB Ground Layer Figure 46. PCB Split Power Plane Rev Page ...
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Figure 47. PCB Bottom-Side Copper Routing Figure 48. PCB Bottom-Side Silkscreen Rev Page AD9480 ...
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... OUTLINE DIMENSIONS 1.05 1.00 0.95 0.15 0.05 VIEW A ROTATED 90° CCW ORDERING GUIDE Model Temperature Range −40 ° +85 ° C AD9480BSUZ-250 1, 2 −40 ° +85 ° AD9480ASUZ-250 3 AD9480-LVDS/PCB Pb-free part. 2 Optimized differential nonlinearity. 3 Evaluation board shipped with AD9480BSUZ-250 installed. 1.20 MAX 0.75 44 0.60 1 0.45 0° ...
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NOTES Rev Page AD9480 ...
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AD9480 NOTES ©2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04619–0–4/05(A) Rev Page ...