link to page 13 link to page 12 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 link to page 7 Data SheetAD7321SPECIFICATIONS VDD = 12 V to 16.5 V, VSS = −12 V to −16.5 V, VCC = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, VREF = 2.5 V to 3.0 V internal/external, fSCLK = 10 MHz, fS = 500 kSPS, TA = TMAX to TMIN, unless otherwise noted. Table 2.B VersionParameter 1 MinTypMaxUnitTest Conditions/Comments DYNAMIC PERFORMANCE FIN = 50 kHz sine wave Signal-to-Noise Ratio (SNR)2 76 dB Differential mode, VCC = 4.75 V to 5.25 V 75.5 dB Differential mode, VCC < 4.75 V 72.5 dB Single-ended/pseudo differential mode: ±10 V, ±2.5 V and ±5 V ranges, VCC = 4.75 V to 5.25 V 72 dB Single-ended/pseudo differential mode: 0 V to 10 V VCC = 4.75 V to 5.25 V and all ranges at VCC < 4.75 V Signal-to-Noise + Distortion 75 dB Differential mode: ±2.5 V and ±5 V ranges (SINAD)2 74 Differential mode: 0 V to 10 V 76 dB Differential mode: ±10 V range 72 dB Single-ended/pseudo differential mode: ±2.5 V and ±5 V ranges 72.5 dB Single-ended/pseudo differential mode: 0 V to +10 V and ±10 V ranges Total Harmonic Distortion −80 dB Differential mode: ±2.5 V and ±5 V ranges (THD)2 −79 dB Differential mode: 0 V to 10 V ranges −82 dB Differential mode: ±10 V range −77 dB Single-ended/pseudo differential mode: ±5 V range −79 dB Single-ended/pseudo differential mode: ±2.5 V range −80 dB Single-ended/pseudo differential mode: 0 V to +10 V and ±10 V ranges Peak Harmonic or Spurious −81 dB Differential mode: ±2.5 V and ±5 V ranges Noise (SFDR)2 −80 dB Differential mode: 0 V to 10 V ranges −82 dB Differential mode: ±10 V ranges −78 dB Single-ended/pseudo differential mode: ±5 V range −80 Single-ended/pseudo differential mode: ±2.5 V range −79 dB Single-ended/pseudo differential mode: 0 V to +10 V and ±10 V ranges Intermodulation Distortion fa = 50 kHz, fb = 30 kHz (IMD)2 Second-Order Terms −88 dB Third-Order Terms −90 dB Aperture Delay3 7 ns Aperture Jitter3 50 ps Common-Mode Rejection −79 dB Up to 100 kHz ripple frequency: see Figure 17 (CMRR)2 Channel-to-Channel −72 dB FIN on unselected channels up to 100 kHz: see Isolation2 Figure 14 Full Power Bandwidth 22 MHz At 3 dB 5 MHz At 0.1 dB Rev. B | Page 3 of 36 Document Outline Features Functional Block Diagram General Description 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 Range Register Sequencer Operation Reference VDRIVE Modes of Operation Normal Mode Full Shutdown Mode Autoshutdown Mode Autostandby Mode Power vs. Throughput Rate Serial Interface Microprocessor Interfacing AD7321 to ADSP-21xx AD7321 to ADSP-BF53x Application Hints Layout and Grounding Power Supply Configuration Outline Dimensions Ordering Guide