Datasheet AD7091 (Analog Devices) - 7

Data Sheet AD7091 TYPICAL PERFORMANCE CHARACTERISTICS 0 72 VDD = 3V TA = 25°C T V A = 25°C fSAMPLE = 1MSPS DD = 5V –20 fIN = 10kHz f 70 SAMPLE = 1MSPS SNR = 69.84dB –40 SINAD = 69.56dB THD = –81.05dB VDD = 2.7V 68 V B) DD = 3V d ( –60 B) d UDE 66 IT L NR ( –80 P S AM 64 –100 62 –120 –140 60 0 100 200 300 400 500
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1 10 100
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FREQUENCY (kHz)
10494-
INPUT FREQUENCY (kHz)
10494- Figure 4. Typical Dynamic Performance Figure 7. SNR vs. Analog Input Frequency for Various Supply Voltages
1.0 0 V T DD = 3V A = 25°C 0.8 TA = 25°C –10 fSAMPLE = 1MSPS fSAMPLE = 1MSPS 0.6 –20 0.4 –30 ) 0.2 –40 B) SB d 0 (L –50 L HD ( IN T –0.2 –60 –0.4 –70 VDD = 3V –0.6 –80 –0.8 –90 VDD = 2.7V –1.0 –100 0 512 1024 1536 2048 2560 3072 3584 4096
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1 10 100
008
CODE
10494-
INPUT FREQUENCY (kHz)
10494- Figure 5. Typical INL Performance Figure 8. THD vs. Analog Input Frequency for Various Supply Voltages
1.0 –50 VDD = 3V VDD = 3V T 0.8 A = 25°C TA = 25°C f –55 SAMPLE = 1MSPS fIN = 10kHz 0.6 fSAMPLE = 1MSPS –60 0.4 –65 ) 0.2 SB B) d (L 0 –70 L HD ( DN T –0.2 –75 –0.4 –80 –0.6 –85 –0.8 –1.0 –90 0 512 1024 1536 2048 2560 3072 3584 4096
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10 100 1000 10000
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CODE SOURCE IMPEDANCE (Ω)
10494- 10494- Figure 6. Typical DNL Performance Figure 9. THD vs. Source Impedance Rev. B | Page 7 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT MODES OF OPERATION Normal Mode Power-Down Mode POWER CONSUMPTION Power Consumption in Normal Mode Power Consumption Using a Combination of Normal Mode and Power-Down Mode MULTIPLEXER APPLICATIONS SERIAL INTERFACE BUSY INDICATOR ENABLED BUSY INDICATOR DISABLED SOFTWARE RESET INTERFACING WITH AN 8-/16-BIT SPI BUS OUTLINE DIMENSIONS ORDERING GUIDE