Datasheet AD7980 (Analog Devices) - 4

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Data Sheet AD7980 SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = –40°C to +125°C, unless otherwise noted.
Table 2. A Grade B Grade Parameter Conditions Min Typ Max Min Typ Max Unit
RESOLUTION 16 16 Bits ANALOG INPUT Voltage Range IN+ − IN− 0 VREF 0 VREF V Absolute Input Voltage IN+ −0.1 VREF + 0.1 −0.1 VREF + 0.1 V IN− −0.1 +0.1 −0.1 +0.1 V Analog Input CMRR fIN = 100 kHz 60 60 dB Leakage Current at 25°C Acquisition phase 1 1 nA Input Impedance See the See the Analog Input section Analog Input section ACCURACY No Missing Codes 16 16 Bits Differential Linearity Error REF = 5 V −1.0 ±0.5 +2.0 −0.9 ±0.4 +0.9 LSB1 REF = 2.5 V ±0.7 ±0.55 LSB1 Integral Linearity Error REF = 5 V −2.5 ±1.5 +2.5 −1.25 ±0.6 +1.25 LSB1 REF = 2.5 V ±1.65 ±0.65 LSB1 Transition Noise REF = 5 V 0.75 0.6 LSB1 REF = 2.5 V 1.2 1.0 LSB1 Gain Error, T 2 MIN to TMAX ±2 ±2 LSB1 Gain Error Temperature Drift ±0.35 ±0.35 ppm/°C Zero Error, T 2 MIN to TMAX −1.0 ±0.08 +1.0 −0.5 ±0.08 +0.5 mV Zero Temperature Drift 0.54 0.54 ppm/°C Power Supply Sensitivity VDD = 2.5 V ± 5% ±0.1 ±0.1 LSB1 THROUGHPUT Conversion Rate VIO ≥ 2.3 V up to 85°C, VIO ≥ 0 1 0 1 MSPS 3.3 V above 85°C up to 125°C Transient Response Full-scale step 290 290 ns AC ACCURACY Dynamic Range VREF = 5 V 91 92 dB3 VREF = 2.5 V 86 87 dB3 Oversampled Dynamic Range fO = 10 kSPS 110 111 dB3 Signal-to-Noise Ratio, SNR fIN = 10 kHz, VREF = 5 V 90.5 90 91.5 dB3 fIN = 10 kHz, VREF = 2.5 V 86.0 87.0 dB3 Spurious-Free Dynamic Range, SFDR fIN = 10 kHz −103.5 −110 dB3 Total Harmonic Distortion, THD fIN = 10 kHz −101 −114 dB3 Signal-to-(Noise + Distortion), SINAD fIN = 10 kHz, VREF = 5 V 90 91 dB3 fIN = 10 kHz, VREF = 2.5 V 85.5 86.5 dB3 1 LSB means least significant bit. With the 5 V input range, 1 LSB is 76.3 µV. 2 See the Terminology section. These specifications include full temperature range variation, but not the error contribution from the external reference. 3 All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified. Rev. D | Page 3 of 28 Document Outline FEATURES APPLICATIONS APPLICATION DIAGRAM EXAMPLE GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUT DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE MODE, 3-CS WIRE, WITHOUT BUSY INDICATOR CS MODE 3-WIRE WITH BUSY INDICATOR CS MODE 4-WIRE, WITHOUT BUSY INDICATOR CS MODE 4-WIRE WITH BUSY INDICATOR CS CHAIN MODE, WITHOUT BUSY INDICATOR CS CHAIN MODE WITH BUSY INDICATOR APPLICATION HINTS LAYOUT EVALUATING THE PERFORMANCE OF THE AD7980 OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES NOTES