Datasheet AD7329 (Analog Devices) - 7

FabricanteAnalog Devices
Descripción1 MSPS , 8-Channel, Software Selectable True Bipolar Input, 12-Bit Plus Sign A/D Converter
Páginas / Página39 / 7 — AD7329. Data Sheet. B Version. Parameter1. Min. Typ. Max. Unit. Test …
RevisiónC
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AD7329. Data Sheet. B Version. Parameter1. Min. Typ. Max. Unit. Test Conditions/Comments

AD7329 Data Sheet B Version Parameter1 Min Typ Max Unit Test Conditions/Comments

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AD7329 Data Sheet B Version Parameter1 Min Typ Max Unit Test Conditions/Comments
CONVERSION RATE Conversion Time 800 ns 16 SCLK cycles with SCLK = 20 MHz Track-and-Hold Acquisition 300 ns Full-scale step input; see the Terminology section Time2, 3 Throughput Rate 1 MSPS VCC = 4.75 V to 5.25 V; see the Serial Interface section 770 kSPS VCC < 4.75 V POWER REQUIREMENTS Digital inputs = 0 V or VDRIVE VDD 12 16.5 V See Table 6 VSS −12 −16.5 V See Table 6 VCC 2.7 5.25 V See Table 6; typical specifications for VCC < 4.75 V VDRIVE 2.7 5.25 V Normal Mode (Static) 0.9 mA VDD= 16.5, VSS = −16.5 V, VCC = VDRIVE = 5.25 V Normal Mode (Operational) fS = 1 MSPS IDD 360 µA VDD = 16.5 V ISS 410 µA VSS = −16.5 V ICC and IDRIVE 3.4 mA VCC = VDRIVE = 5.25 V Autostandby Mode (Dynamic) fS = 250 kSPS IDD 200 µA VDD = 16.5 V ISS 210 µA VSS = −16.5 V ICC and IDRIVE 1.3 mA VCC = VDRIVE = 5.25 V Autoshutdown Mode (Static) SCLK on or off IDD 1 µA VDD = 16.5 V ISS 1 µA VSS = −16.5 V ICC and IDRIVE 1 µA VCC = VDRIVE = 5.25 V Full Shutdown Mode SCLK on or off IDD 1 µA VDD = 16.5 V ISS 1 µA VSS = −16.5 V ICC and IDRIVE 1 µA VCC = VDRIVE = 5.25 V POWER DISSIPATION Normal Mode (Operational) 31 mW VDD = 16.5 V, VSS = −16.5 V, VCC = 5.25 V 21 mW VDD = 12 V, VSS = −12 V, VCC = 5 V Full Shutdown Mode 38.25 µW VDD = 16.5 V, VSS = −16.5 V, VCC = 5.25 V 1 Temperature range is −40°C to +85°C. 2 See the Terminology section. 3 Sample tested during initial release to ensure compliance. 4 For dc accuracy specifications, the LSB size for differential mode is FSR/8192. For single-ended mode/pseudo differential mode, the LSB size is FSR/4096, unless otherwise noted. 5 Unipolar 0 V to 10 V range with straight binary output coding. 6 Bipolar range with twos complement output coding. Rev. C | Page 6 of 38 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 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 AD7329 TO ADSP-21xx AD7329 TO ADSP-BF53x APPLICATIONS INFORMATION LAYOUT AND GROUNDING POWER SUPPLY CONFIGURATION OUTLINE DIMENSIONS ORDERING GUIDE