Datasheet AD7490 (Analog Devices) - 10

Data Sheet AD7490 –50 1.0 fS = 1MSPS VDD = VDRIVE = 5V T 0.8 A = 25°C TEMPERATURE = 25°C –55 VDD = 5.25V RANGE = 0V TO REF 0.6 IN R –60 IN = 1000Ω 0.4 B) S 0.2 –65 L B) d R ( 0 HD ( –70 RRO T E –0.2 RIN = 100Ω L DN –75 –0.4 RIN = 5Ω –0.6 –80 –0.8 RIN = 10Ω –85 –1.0 10 100 1000
008
0 512 1024 1536 2048 2560 3072 3584 4096
010
INPUT FREQUENCY (Hz)
02691-
CODE
02691- Figure 9. THD vs. Analog Input Frequency Figure 11. Typical DNL for Various Analog Source Impedances
1.0 VDD = VDRIVE = 5V 0.8 TEMPERATURE = 25°C 0.6 0.4 B) S 0.2 L R ( 0 RRO E –0.2 L IN –0.4 –0.6 –0.8 –1.0 0 512 1024 1536 2048 2560 3072 3584 4096
009
CODE
02691- Figure 10. Typical INL Rev. D | Page 9 of 28 Document Outline Features Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Internal Register Structure Control Register Sequencer Operation Shadow Register Theory of Operation Circuit Information Converter Operation Analog Input ADC Transfer Function Handling Bipolar Input Signals Typical Connection Diagram Analog Input Channels Digital Input VDRIVE Reference Section Modes of Operation Normal Mode (PM1 = PM0 = 1) Full Shutdown (PM1 = 1, PM0 = 0) Auto Shutdown (PM1 = 0, PM0 = 1) Auto Standby (PM1 = PM0 = 0) Powering Up the AD7490 Serial Interface Power vs. Throughput Rate Microprocessor Interfacing AD7490 to TMS320C541 AD7490 to ADSP-21xx AD7490 to DSP563xx Application Hints Grounding and Layout PCB Design Guidelines for Chip Scale Package Evaluating the AD7490 Performance Outline Dimensions Ordering Guide