Datasheet AD7674 (Analog Devices) - 4

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Data Sheet AD7674 SPECIFICATIONS
−40°C to +85°C, VREF = 4.096 V, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
RESOLUTION 18 Bits ANALOG INPUT Voltage Range VIN+ − VIN− −VREF +VREF V Operating Input Voltage VIN+, VIN− to AGND −0.1 AVDD V Analog Input CMRR fIN = 100 kHz 65 dB Input Current 800 kSPS throughput 100 µA Input Impedance1 THROUGHPUT SPEED Complete Cycle In warp mode 1.25 µs Throughput Rate In warp mode 1 800 kSPS Time Between Conversions In warp mode 1 ms Complete Cycle In normal mode 1.5 µs Throughput Rate In normal mode 0 666 kSPS Complete Cycle In impulse mode 1.75 µs Throughput Rate In impulse mode 0 570 kSPS DC ACCURACY Integral Linearity Error −2.5 +2.5 LSB2 Differential Linearity Error −1 +1.75 LSB No Missing Codes 18 Bits Transition Noise VREF = 5 V 0.7 LSB Zero Error, TMIN to TMAX In warp mode −25 +25 LSB Zero Error, TMIN to TMAX In normal mode or impulse mode −85 +85 LSB Zero Error Temperature Drift All modes ±0.5 ppm/°C Gain Error, T 3 MIN to TMAX In warp mode −0.034 +0.034 % of FSR Gain Error, T 3 MIN to TMAX In normal mode or impulse mode −0.048 +0.048 % of FSR Gain Error Temperature Drift All modes ±1.6 ppm/°C Power Supply Sensitivity AVDD = 5 V ± 5% ±4 LSB AC ACCURACY Signal-to-Noise fIN = 2 kHz, VREF = 5 V 101 dB4 VREF = 4.096 V 97.5 99 dB fIN = 10 kHz, VREF = 4.096 V 98 dB fIN = 100 kHz, VREF = 4.096 V 97 dB Dynamic Range VIN+ = VIN− = VREF/2 = 2.5 V 103 dB Spurious-Free Dynamic Range fIN = 2 kHz 120 dB fIN = 10 kHz 118 dB fIN = 100 kHz 105 dB Total Harmonic Distortion fIN = 2 kHz −115 dB fIN = 10 kHz −113 dB fIN = 100 kHz −98 dB Signal-to-Noise-and-Distortion Ratio fIN = 2 kHz, VREF = 4.096 V 98 dB fIN = 2 kHz, −60 dB input 40 dB −3 dB Input Bandwidth 26 MHz SAMPLING DYNAMICS Aperture Delay 2 ns Aperture Jitter 5 ps rms Transient Response Full-scale step 250 ns Overvoltage Recovery 250 ns Rev. B | Page 3 of 28 Document Outline FEATURES APPLICATIONS 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 TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION Modes of Operation Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Inputs Driver Amplifier Choice Single-to-Differential Driver Voltage Reference Power Supply POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read during Conversion MICROPROCESSOR INTERFACING Serial Peripheral Interface (SPI) APPLICATIONS INFORMATION LAYOUT EVALUATING AD7674 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES