Datasheet AD9481 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 8-Bit, 250 MSPS, 3.3 V A/D Converter |
| 页数 / 页 | 29 / 6 — AD9481. AC SPECIFICATIONS. Table 3. AD9481-250. Parameter. Temp. Test. … |
| 文件格式/大小 | PDF / 736 Kb |
| 文件语言 | 英语 |
AD9481. AC SPECIFICATIONS. Table 3. AD9481-250. Parameter. Temp. Test. Level Min. Typ Max. Unit
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AD9481 AC SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V; TMIN = −40°C, TMAX = +85°C, AIN = −1 dBFS, full scale = 1.0 V, internal reference, differential analog and clock inputs, unless otherwise noted.
Table 3. AD9481-250 Parameter Temp Test Level Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR) fIN = 19.7 MHz 25°C V 46 dB fIN = 70.1 MHz 25°C I 44.5 45.7 dB SIGNAL-TO-NOISE AND DISTORTION (SINAD) fIN = 19.7 MHz 25°C V 45.9 dB fIN = 70.1 MHz 25°C I 44.4 45.7 dB EFFECTIVE NUMBER OF BITS (ENOB) fIN = 19.7 MHz 25°C V 7.5 Bits fIN = 70.1 MHz 25°C I 7.2 7.5 Bits WORST SECOND OR THIRD HARMONIC DISTORTION fIN = 19.7 MHz 25°C V −64.8 dBc fIN = 70.1 MHz 25°C I −64.8 −54 dBc WORST OTHER fIN = 19.7 MHz 25°C V −68 dBc fIN = 70.1 MHz 25°C I −65.8 −56 dBc SPURIOUS-FREE DYNAMIC RANGE (SFDR)1 fIN = 19.7 MHz 25°C V −64.8 dBc fIN = 70.1 MHz 25°C I −64.8 −54 dBc TWO-TONE INTERMODULATION DISTORTION (IMD) fIN1 = 69.3 MHz, fIN2 = 70.3 MHz 25°C V −64.9 dBc 1 DC and Nyquist bin energy ignored. Rev. 0 | Page 5 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS DC SPECIFICATIONS DIGITAL SPECIFICATIONS AC SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS EQUIVALENT CIRCUITS APPLICATIONS ANALOG INPUTS VOLTAGE REFERENCE Fixed Reference External Reference Programmable Reference CLOCKING THE AD9481 DS INPUTS DIGITAL OUTPUTS INTERLEAVING TWO AD9481s DATA CLOCK OUT POWER-DOWN INPUT AD9481 EVALUATION BOARD POWER CONNECTOR ANALOG INPUTS GAIN OPTIONAL OPERATIONAL AMPLIFIER CLOCK OPTIONAL CLOCK BUFFER DS OPTIONAL XTAL VOLTAGE REFERENCE DATA OUTPUTS EVALUATION BOARD BILL OF MATERIALS (BOM) PCB SCHEMATICS PCB LAYERS OUTLINE DIMENSIONS ORDERING GUIDE
AD9481 AC SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V; TMIN = −40°C, TMAX = +85°C, AIN = −1 dBFS, full scale = 1.0 V, internal reference, differential analog and clock inputs, unless otherwise noted.
Table 3. AD9481-250 Parameter Temp Test Level Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR) fIN = 19.7 MHz 25°C V 46 dB fIN = 70.1 MHz 25°C I 44.5 45.7 dB SIGNAL-TO-NOISE AND DISTORTION (SINAD) fIN = 19.7 MHz 25°C V 45.9 dB fIN = 70.1 MHz 25°C I 44.4 45.7 dB EFFECTIVE NUMBER OF BITS (ENOB) fIN = 19.7 MHz 25°C V 7.5 Bits fIN = 70.1 MHz 25°C I 7.2 7.5 Bits WORST SECOND OR THIRD HARMONIC DISTORTION fIN = 19.7 MHz 25°C V −64.8 dBc fIN = 70.1 MHz 25°C I −64.8 −54 dBc WORST OTHER fIN = 19.7 MHz 25°C V −68 dBc fIN = 70.1 MHz 25°C I −65.8 −56 dBc SPURIOUS-FREE DYNAMIC RANGE (SFDR)1 fIN = 19.7 MHz 25°C V −64.8 dBc fIN = 70.1 MHz 25°C I −64.8 −54 dBc TWO-TONE INTERMODULATION DISTORTION (IMD) fIN1 = 69.3 MHz, fIN2 = 70.3 MHz 25°C V −64.9 dBc 1 DC and Nyquist bin energy ignored. Rev. 0 | Page 5 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS DC SPECIFICATIONS DIGITAL SPECIFICATIONS AC SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING DIAGRAM ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS EQUIVALENT CIRCUITS APPLICATIONS ANALOG INPUTS VOLTAGE REFERENCE Fixed Reference External Reference Programmable Reference CLOCKING THE AD9481 DS INPUTS DIGITAL OUTPUTS INTERLEAVING TWO AD9481s DATA CLOCK OUT POWER-DOWN INPUT AD9481 EVALUATION BOARD POWER CONNECTOR ANALOG INPUTS GAIN OPTIONAL OPERATIONAL AMPLIFIER CLOCK OPTIONAL CLOCK BUFFER DS OPTIONAL XTAL VOLTAGE REFERENCE DATA OUTPUTS EVALUATION BOARD BILL OF MATERIALS (BOM) PCB SCHEMATICS PCB LAYERS OUTLINE DIMENSIONS ORDERING GUIDE