Datasheet AD7625 (Analog Devices) - 4

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Data Sheet AD7625 SPECIFICATIONS
VDD1 = 5 V; VDD2 = 2.5 V; VIO = 2.5 V; REF = 4.096 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2. Parameter Test Conditions/Comments Min Typ Max Unit
RESOLUTION 16 Bits ANALOG INPUT Voltage Range VIN+ − VIN− −VREF +VREF V Operating Input Voltage VIN+, VIN− to GND −0.1 VREF + 0.1 V Common-Mode Input Range VREF/2 − 0.05 VREF/2 VREF/2 + 0.05 V Common-Mode Rejection Ratio fIN = 1 MHz 60 dB Input Current Midscale input 77 μA THROUGHPUT Complete Cycle 166 ns Throughput Rate 0.1 6 MSPS DC ACCURACY Integral Linearity Error −1 ±0.45 +1 LSB No Missing Codes 16 Bits Differential Linearity Error −0.5 ±0.3 +0.5 LSB Transition Noise 0.6 LSB Zero Error TMIN to TMAX −4 ±1.5 +4 LSB Zero Error Drift 0.5 ppm/°C Gain Error TMIN to TMAX 8 20 LSB Gain Error Drift 0.4 ppm/°C Power Supply Sensitivity1 VDD1 = 5 V ± 5% 0.4 LSB VDD2 = 2.5 V ± 5% 0.2 LSB AC ACCURACY External Reference fIN = 20 kHz Dynamic Range 92.5 93.2 dB Signal-to-Noise Ratio 92 93 dB Spurious-Free Dynamic Range 106 dB Total Harmonic Distortion −105.5 dB Signal-to-(Noise + Distortion) 91.5 92 dB Internal Reference fIN = 20 kHz Dynamic Range 92.5 93.2 dB Signal-to-Noise Ratio 91.5 92.9 dB Spurious-Free Dynamic Range 106 dB Total Harmonic Distortion −105.5 dB Signal-to-(Noise + Distortion) 91 92.5 dB −3 dB Input Bandwidth 100 MHz Aperture Delay 1.5 ns Aperture Jitter 0.25 ps rms INTERNAL REFERENCE Output Voltage REFIN @ 25°C 1.2 V Temperature Drift −40°C to +85°C ±15 ppm/°C REFERENCE BUFFER REFIN Input Voltage Range 1.2 V REF Output Voltage Range 4.076 4.096 4.116 V Line Regulation VDD1 ± 5%, VDD2 ± 5% 5 mV EXTERNAL REFERENCE Voltage Range REF 4.096 V Current Drain 6 MSPS 590 μA Rev. B | Page 3 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER INFORMATION TRANSFER FUNCTIONS ANALOG INPUTS TYPICAL CONNECTION DIAGRAM DRIVING THE AD7625 Differential Analog Input Source Single-Ended-to-Differential Driver VOLTAGE REFERENCE OPTIONS POWER SUPPLY Power-Up DIGITAL INTERFACE Conversion Control Echoed-Clock Interface Mode Self-Clocked Interface Mode APPLICATIONS INFORMATION LAYOUT, DECOUPLING, AND GROUNDING Exposed Pad VDD1 Supply Routing and Decoupling VIO Supply Decoupling Layout and Decoupling of Pin 25 to Pin 32 OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES