Datasheet AD7328 (Analog Devices) - 10

Data Sheet AD7328 TYPICAL PERFORMANCE CHARACTERISTICS 0 1.0 4096 POINT FFT VCC = VDRIVE = 5V INT/EXT 2.5V REFERENCE VCC = VDRIVE = 5V 0.8 TA = 25°C ±10V RANGE –20 VDD, VSS = ±15V VDD, VSS = ±15V +INL = +0.55LSB TA = 25°C 0.6 –INL = –0.68LSB INT/EXT 2.5V REFERENCE –40 ±10V RANGE 0.4 FIN = 50kHz B) SNR = 77.30dB S 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 –100 –0.4 –0.6 –120
004
–0.8
007
–140
04852-
–1.0
04852-
0 50 100 150 200 250 300 350 400 450 500 0 1024 2048 3072 4096 5120 6144 7168 8192 512 1536 2560 3584 4608 5632 6656 7680 FREQUENCY (kHz) CODE
Figure 4. FFT for True Differential Mode Figure 7. Typical INL for True Differential Mode
0 1.0 4096 POINT FFT V 0.8 CC = VDRIVE = 5V –20 VDD, VSS = ±15V T 0.6 A = 25°C INT/EXT 2.5V REFERENCE –40 ±10V RANGE 0.4 F B) IN = 50kHz S SNR = 74.67dB L 0.2 B) –60 SINAD = 74.03dB R ( d THD = –82.68dB 0 NR ( SFDR = –85.40dB RRO S –80 E L –0.2 DN –0.4 –100 –0.6 VCC = VDRIVE = 5V ±10V RANGE T +DNL = +0.79LSB –120 A = 25°C –0.8 V –DNL = –0.38LSB
043 005
DD, VSS = ±15V INT/EXT 2.5V REFERENCE
04852-
–140
04852-
–1.0 0 1024 2048 3072 4096 5120 6144 7168 8192 0 50 100 150 200 250 300 350 400 450 500 512 1536 2560 3584 4608 5632 6656 7680 FREQUENCY (kHz) CODE
Figure 5. FFT for Single-Ended Mode Figure 8. Typical DNL for 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 E L –0.2 L –0.2 DN V IN CC = VDRIVE = 5V V –0.4 CC = VDRIVE = 5V T –0.4 A = 25°C TA = 25°C VDD, VSS = ±15V VDD, VSS = ±15V –0.6 INT/EXT 2.5V REFERENCE –0.6 INT/EXT 2.5V REFERENCE ±10V RANGE ±10V RANGE –0.8 +DNL = +0.72LSB
006
–0.8 +INL = +0.87LSB
044
–DNL = –0.22LSB –INL = –0.49LSB –1.0
04852-
–1.0
04852-
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 512 1536 2560 3584 4608 5632 6656 7680 CODE CODE
Figure 6. Typical DNL for True Differential Mode Figure 9. Typical INL for Single-Ended Mode Rev. C | Page 9 of 36 Document Outline Features General Description Functional Block Diagram Product Highlights 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 Sequence Register Range Registers Sequencer Operation Reference VDRIVE Temperature Indicator 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 AD7328 to ADSP-21xx AD7328 to ADSP-BF53x Applications Information Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide