AD9218BST-65 Analog Devices Inc, AD9218BST-65 Datasheet
AD9218BST-65
Specifications of AD9218BST-65
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AD9218BST-65 Summary of contents
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FEATURES Dual 10-bit, 40 MSPS, 65 MSPS, 80 MSPS, and 105 MSPS ADC Low power: 275 mW at 105 MSPS per channel On-chip reference and track-and-hold 300 MHz analog bandwidth each channel SNR = MHz, Encode ...
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TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 DC Specifications ......................................................................... 3 Digital Specifications ................................................................... 4 AC Specifications.......................................................................... 5 Switching Specifications ...
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... VI 108/117 113/130 V 7/11 VI 325/350 340/390 ± ± range (full scale). The analog inputs self-bias LOAD = 0). DD Rev Page AD9218BST-80/-105 Min Typ Max 10 Guaranteed, not tested – –2 3.5 8 –1 ±0.5/±0.8 1.2/1.7 ±0.6/±0.9 –1.35/–2.7 ±0.75/±2 +1.35/2.7 ± ...
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... VI VI –50 ±0 VI –400 –230 VI 50 230 VI –50 ± 100 VI –400 –230 4.5 VI 2.45 VI Twos complement or offset binary Rev Page AD9218BST-80/-105 Max Min Typ Max 0.8 0.8 2.3 1.8 2.0 2.3 2 0.8 0.8 50 –50 ±0 50 –50 –400 –230 –50 400 50 ...
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... I –/–60 –78/–64 25°C V –74/–73 25°C V –73/–73 25°C V 300 25°C V –75 Rev Page AD9218 AD9218BST-80/-105 Max Min Typ Max 57/53 58/55 55/52 57/54 56/52 58/53 55/51 57/53 9.1/8.4 9.4/8.6 9/8.3 9.3/8.6 –69/–60 –77/–68 – ...
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... V 5 25° 25° Full IV 5 SAMPLE SAMPLE SAMPLE 1/f S DATA N – 4 DATA N – 3 DATA N – 2 DATA N – 4 DATA N – 3 DATA N – 2 Rev Page AD9218BST-80/-105 Max Min Typ Max 80/105 20/20 20/20 5/3.8 5/3 2.5 7 4.5 6 1.0 1 SAMPLE SAMPLE SAMPLE ...
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SAMPLE SAMPLE SAMPLE SAMPLE 1 ENCODE A ENCODE DATA N – 10 DATA ...
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AD9218 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Analog Inputs Digital Inputs REF Inputs IN Digital Output Current Operating Temperature Storage Temperature Maximum Junction Temperature Maximum Case Temperature θ (measured on a 4-layer board with A ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 7. Pin Function Descriptions Pin Number Mnemonic Description 1, 12, 16, 27, 29, GND Ground. 32, 34 Analog Input for Channel Analog Input for Channel ...
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AD9218 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 ...
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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 ratio ...
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AD9218 EQUIVALENT CIRCUITS 30kΩ 30kΩ 40kΩ 15kΩ 15kΩ Figure 6. Analog Input Stage 2.6kΩ 600kΩ ENCODE 2.6kΩ Figure 7. Encode Inputs V D OUT Figure 8. Reference Output Stage V 40kΩ DX Figure 9. Digital Output Stage V ...
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TYPICAL PERFORMANCE CHARACTERISTICS 0 ENCODE = 105MSPS – 50.1MHz AT –0.5dBFS IN SNR = 53.8dB –20 SINAD = 53.4dB H2 = –69dB – –65.8dB –40 –50 –60 –70 –80 –90 –100 0 Figure 14. FFT: FS ...
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AD9218 0 ENCODE = 31MSPS – 8MHz AT –0.5dBFS IN SNR = 59.23dB –20 SINAD = 59.1dB H2 = –87dB – –81dB –40 –50 –60 –70 –80 –90 –100 0 Figure 20. FFT ...
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DIFFERENTIAL DRIVE SFDR SFDR SINGLE-ENDED DRIVE 100 120 A FREQUENCY (MHz) IN Figure 26. ...
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AD9218 75 70 SFDR SINAD ENCODE POSITIVE PULSEWIDTH (ns) Figure 32. SINAD and SFDR vs. Encode Pulse Width High, A Single-Ended p-p Analog Input ...
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I (mA) LOAD Figure 38. V vs. I REF LOAD 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 CODES Figure 39. ...
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AD9218 THEORY OF OPERATION The AD9218 ADC architecture is a bit-per-stage pipeline-type converter utilizing switch capacitor techniques. These stages determine the 7 MSBs and drive a 3-bit flash. Each stage provides sufficient overlap and error correction, allowing optimization of comparator ...
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VOLTAGE REFERENCE A stable and accurate 1.25 V voltage reference is built into the AD9218 (VREF OUT). Typically, the internal reference is used by strapping Pin 5 (REF A) and Pin 7 (REF IN (REF ). The input range for ...
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AD9218 AD9218/AD9288 CUSTOMER PCB BOM Table 8. Bill of Materials No. Qty Reference Designator C15, C20, C21, C24, C25, C27, C30 to C35, C39 to C42 2 2 C2, C36 3 7 C16–C19, C26, C37, ...
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EVALUATION BOARD The AD9218/AD9288 customer evaluation board offers an easy way to test the AD9218 or the AD9288. The compatible pinout of the two parts facilitates the use of one PCB for testing either part. The PCB requires power supplies, ...
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AD9218 ...
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Figure 46. PCB Schematic (Continued) Rev Page AD9218 02001-046 ...
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AD9218 Figure 47. Top Silkscreen Figure 48. Top Routing Figure 49. Ground Plane Figure 50. Split Power Plane Figure 51. Bottom Routing Figure 52. Bottom Silkscreen Rev Page ...
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... AD9218BST-40 –40°C to +85°C AD9218BST-RL40 –40°C to +85°C 1 AD9218BSTZ-40 –40°C to +85°C 1 AD9218BSTZ-RL40 –40°C to +85°C AD9218BST-65 –40°C to +85°C AD9218BST-RL65 –40°C to +85°C 1 AD9218BSTZ-65 –40°C to +85°C 1 AD9218BSTZ-RL65 –40°C to +85°C AD9218BST-80 – ...
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AD9218 NOTES Rev Page ...
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NOTES Rev Page AD9218 ...
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AD9218 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C02001-0-12/06(C) Rev Page ...