Datasheet AD7622 (Analog Devices) - 4

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AD7622 SPECIFICATIONS
AVDD = DVDD = 2.5 V; OVDD = 2.3 V to 3.6 V; VREF = 2.5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2. Parameter Conditions Min Typ Max Unit
RESOLUTION 16 Bits ANALOG INPUT Voltage Range VIN+ − VIN− −VREF +VREF V Operating Input Voltage VIN+, VIN− to AGND −0.1 AVDD1 V Analog Input CMRR fIN = 100 kHz 58 dB Input Current 2 MSPS throughput 3.5 μA Input Impedance2 THROUGHPUT SPEED Complete Cycle Wideband warp, warp modes 500 ns Throughput Rate Wideband warp, warp modes 0.001 2 MSPS Time Between Conversions Wideband warp, warp modes 1 ms Complete Cycle Normal mode 667 ns Throughput Rate Normal mode 0 1.5 MSPS DC ACCURACY Integral Linearity Error3 TMIN to TMAX = −40°C to +85°C −1.5 ±0.5 +1.5 LSB4 No Missing Codes 16 Bits Differential Linearity Error −1 +1.25 LSB Transition Noise VREF = 2.5 V 0.5 LSB Transition Noise VREF = 2.048 V 0.6 LSB Zero Error, T 5 MIN to TMAX −10 +10 LSB Zero Error Temperature Drift ±0.5 ppm/°C Gain Error, T 5 MIN to TMAX −8 +8 LSB Gain Error Temperature Drift ±0.5 ppm/°C Power Supply Sensitivity AVDD = 2.5 V ± 5% ±4 LSB AC ACCURACY Dynamic Range VREF = 2.5 V 91.5 92.5 dB6 Signal-to-Noise fIN = 20 kHz, VREF = 2.5 V 91 92 dB fIN = 20 kHz, VREF = 2.048 V 89.5 90.5 dB fIN = 100 kHz, VREF = 2.5 V 91 dB Spurious-Free Dynamic Range fIN = 20 kHz, VREF = 2.5 V 117 dB fIN = 20 kHz, VREF = 2.048 V 110 dB fIN = 100 kHz, VREF = 2.5 V 101 dB Total Harmonic Distortion fIN = 20 kHz, VREF = 2.5 V −115 dB fIN = 20 kHz, VREF = 2.048 V −109 dB fIN = 100 kHz, VREF = 2.5 V −100 dB Signal-to-(Noise + Distortion) fIN = 20 kHz, VREF = 2.5 V 91 92 dB fIN = 20 kHz, VREF = 2.048 V 89.5 90.5 dB fIN = 100 kHz, VREF = 2.5 V 91 dB −3 dB Input Bandwidth 50 MHz SAMPLING DYNAMICS Aperture Delay 1 ns Aperture Jitter 5 ps rms Transient Response Full-scale step 140 ns INTERNAL REFERENCE PDREF = PDBUF = low Output Voltage REF @ 25°C 2.038 2.048 2.058 V Temperature Drift −40°C to +85°C ±8 ppm/°C Line Regulation AVDD = 2.5 V ± 5% ±15 ppm/V Turn-On Settling Time CREF = 10 μF 5 ms Rev. 0 | Page 3 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TIMING SPECIFICATIONS PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION CIRCUIT INFORMATION CONVERTER OPERATION MODES OF OPERATION TRANSFER FUNCTIONS TYPICAL CONNECTION DIAGRAM ANALOG INPUTS MULTIPLEXED INPUTS DRIVER AMPLIFIER CHOICE Single-to-Differential Driver VOLTAGE REFERENCE INPUT Internal Reference (PDBUF = Low, PDREF = Low) External 1.2 V Reference and Internal Buffer (PDBUF = Low, PDREF = High) External 2.5 V Reference (PDBUF = High, PDREF = High) Reference Decoupling Temperature Sensor POWER SUPPLY Power Sequencing Power-Up CONVERSION CONTROL INTERFACES DIGITAL INTERFACE RESET PARALLEL INTERFACE Master Parallel Interface Slave Parallel Interface 8-Bit Interface (Master or Slave) SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read After Conversion External Clock Data Read During Previous Conversion MICROPROCESSOR INTERFACING SPI Interface (ADSP-219x) APPLICATION HINTS LAYOUT EVALUATING THE AD7622 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE