Datasheet AD9481 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 8-Bit, 250 MSPS, 3.3 V A/D Converter |
| 页数 / 页 | 29 / 5 — AD9481. DIGITAL SPECIFICATIONS. Table 2. AD9481-250. Parameter Temp. … |
| 文件格式/大小 | PDF / 736 Kb |
| 文件语言 | 英语 |
AD9481. DIGITAL SPECIFICATIONS. Table 2. AD9481-250. Parameter Temp. Test. Level. Min. Typ. Max. Unit
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AD9481 DIGITAL 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 2. AD9481-250 Parameter Temp Test Level Min Typ Max Unit
CLOCK AND DS INPUTS (CLK+, CLK−, DS+, DS−) Differential Input Full IV 200 mV p-p Common-Mode Voltage1 Full VI 1.38 1.5 1.68 V Input Resistance Full VI 4.2 5.5 6.0 kΩ Input Capacitance 25°C V 4 pF LOGIC INPUTS (PDWN, S1) Logic 1 Voltage Full IV 2.0 V Logic 0 Voltage Full IV 0.8 V Logic 1 Input Current Full VI ±160 µA Logic 0 input Current Full VI 10 µA Input Resistance 25°C V 30 kΩ Input Capacitance 25°C V 4 pF DIGITAL OUTPUTS Logic 1 Voltage2 Full VI DRVDD − 0.05 mV Logic 0 Voltage Full VI 0.05 V Output Coding Full IV Twos complement or binary 1 The common mode for CLOCK inputs can be externally set, such that 0.9 V < CLK ± < 2.6 V. 2 Capacitive loading only. Rev. 0 | Page 4 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 DIGITAL 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 2. AD9481-250 Parameter Temp Test Level Min Typ Max Unit
CLOCK AND DS INPUTS (CLK+, CLK−, DS+, DS−) Differential Input Full IV 200 mV p-p Common-Mode Voltage1 Full VI 1.38 1.5 1.68 V Input Resistance Full VI 4.2 5.5 6.0 kΩ Input Capacitance 25°C V 4 pF LOGIC INPUTS (PDWN, S1) Logic 1 Voltage Full IV 2.0 V Logic 0 Voltage Full IV 0.8 V Logic 1 Input Current Full VI ±160 µA Logic 0 input Current Full VI 10 µA Input Resistance 25°C V 30 kΩ Input Capacitance 25°C V 4 pF DIGITAL OUTPUTS Logic 1 Voltage2 Full VI DRVDD − 0.05 mV Logic 0 Voltage Full VI 0.05 V Output Coding Full IV Twos complement or binary 1 The common mode for CLOCK inputs can be externally set, such that 0.9 V < CLK ± < 2.6 V. 2 Capacitive loading only. Rev. 0 | Page 4 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