Datasheet AD7322 (Analog Devices) - 10

Data Sheet AD7322 TYPICAL PERFORMANCE CHARACTERISTICS 0 1.0 4096 POINT FFT VCC = VDRIVE = 5V INT/EXT 2.5V REFERENCE V 0.8 T ±10V RANGE CC = VDRIVE = 5V A = 25°C –20 V V +INL = +0.55LSB DD, VSS = ±15V DD, VSS = ±15V T 0.6 –INL = –0.68LSB A = 25°C INT/EXT 2.5V REFERENCE –40 ±10V RANGE 0.4 fIN = 50kHz B) S SNR = 77.30dB L 0.2 B) –60 SINAD = 76.85dB d R ( THD = –86.96dB 0 NR ( SFDR = –88.22dB RRO S –80 E L –0.2 IN –0.4 –100 –0.6 –120 –0.8 –140 –1.0 0 1024 2048 3072 4096 5120 6144 7168 8192 0 50 100 150 200 250 300 350 400 450 500
004
512 1536 2560 3584 4608 5632 6656 7680
007
FREQUENCY (kHz) CODE
04863- 04863- Figure 4. FFT True Differential Mode Figure 7. Typical INL True Differential Mode
1.0 0 4096 POINT FFT 0.8 VCC = VDRIVE = 5V –20 VDD, VSS = ±15V 0.6 TA = 25°C INT/EXT 2.5V REFERENCE 0.4 –40 ±10V RANGE B) f S IN = 50kHz L 0.2 SNR = 74.67dB R ( B) –60 SINAD = 74.03dB d 0 THD = –82.68dB RRO NR ( SFDR = –85.40dB E –0.2 S –80 L DN –0.4 –100 –0.6 VCC = VDRIVE = 5V ±10V RANGE TA = 25°C +DNL = +0.79LSB –120 –0.8 VDD, VSS = ±15V –DNL = –0.38LSB INT/EXT 2.5V REFERENCE –1.0 0 1024 2048 3072 4096 5120 6144 7168 8192 –140 512 1536 2560 3584 4608 5632 6656 7680
043
0 50 100 150 200 250 300 350 400 450 500
005
CODE
04863-
FREQUENCY (kHz)
04863- Figure 5. FFT Single-Ended Mode Figure 8. Typical DNL Single-Ended Mode
1.0 1.0 0.8 0.8 0.6 0.6 0.4 0.4 B) B) S S L 0.2 L 0.2 R ( R ( 0 0 RRO RRO E –0.2 E L L –0.2 IN VCC = VDRIVE = 5V DN VCC = VDRIVE = 5V –0.4 –0.4 T T A = 25°C A = 25°C V V DD, VSS = ±15V DD, VSS = ±15V –0.6 –0.6 INT/EXT 2.5V REFERENCE INT/EXT 2.5V REFERENCE ±10V RANGE ±10V RANGE –0.8 –0.8 +INL = +0.87LSB +DNL = +0.72LSB –INL = –0.49LSB –DNL = –0.22LSB –1.0 –1.0 0 1024 2048 3072 4096 5120 6144 7168 8192 0 1024 2048 3072 4096 5120 6144 7168 8192 512 1536 2560 3584 4608 5632 6656 7680
044
512 1536 2560 3584 4608 5632 6656 7680
006
CODE
04863-
CODE
04863- Figure 6. Typical DNL True Differential Mode Figure 9. Typical INL Single-Ended Mode Rev. B | Page 9 of 36 Document Outline Features Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Circuit Information Converter Operation Output Coding Transfer Functions Analog Input Structure Track-and-Hold Section Typical Connection Diagram Analog Input Single-Ended Inputs True Differential Mode Pseudo Differential Inputs Driver Amplifier Choice Registers Addressing Registers Control Register Range Register Sequencer Operation Reference VDRIVE Modes of Operation Normal Mode (PM1 = PM0 = 0) Full Shutdown Mode (PM1 = PM0 = 1) Autoshutdown Mode (PM1 = 1, PM0 = 0) Autostandby Mode (PM1 = 0, PM0 = 1) Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7322 to ADSP-21xx AD7322 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide