Datasheet AD7887 (Analog Devices) - 9

AD7887 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0 –75 4096 POINT FFT VDD = 5.5V/2.7V SAMPLING –77 100mV p-p SINE WAVE ON VDD –10 125kSPS REF f IN = 2.488V EXT REFERENCE IN = 10kHz –79 SNR = 71dB –30 –81 B) d –83 –50 RR ( S –85 P –70 –87 –89 –90 –91 –110 –93 0 2.65 12.85 23.15 33.65 43.85 54.35 64.15
007
INPUT FREQUENCY (kHz)
005
20703 31055 41406 51758 62109 72461 82813 93164 03516
06191-
103516 6. 12. 18. 24. 30. 36. 42. 48. 54. 61.
06191- Figure 5. Dynamic Performance Figure 7. PSRR vs. Frequency
73.0 VDD = 5V 5V EXT REFERENCE 72.5 B) (d 72.0 NR S 71.5 71.0 0.15 10.89 21.14 31.59 42.14
006
INPUT FREQUENCY (kHz)
06191- Figure 6. SNR vs. Input Frequency Rev. E | Page 8 of 24 Document Outline Features Applications Functional Block Diagram General Description Product Highlights Table of Contents Revision History Specifications Timing Specifications6F Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Control Register Theory of Operation Circuit Information Converter Operation ADC Transfer Function Typical Connection Diagram Analog Input On-Chip Reference Power-Down Options Power-Up Times Power vs. Throughput Rate Modes of Operation Mode 1 (PM1 = 0, PM0 = 0) Mode 2 (PM1 = 0, PM0 = 1) Mode 3 (PM1 = 1, PM0 = 0) Mode 4 (PM1 = 1, PM0 = 1) Serial Interface Microprocessor Interfacing AD7887 to TMS320C5x AD7887 to ADSP-21xx AD7887 to DSP56xxx AD7887 to MC68HC11 AD7887 to 8051 AD7887 to PIC16C6x/PIC16C7x Application Hints Grounding and Layout Outline Dimensions Ordering Guide Automotive Products