Datasheet AD7981-KGD (Analog Devices) - 3

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Known Good Die AD7981-KGD SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = −55°C to +175°C, unless otherwise noted.
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
RESOLUTION 16 Bits ANALOG INPUT Voltage Range IN+ − IN− 0 VREF V Absolute Input Voltage IN+ −0.1 VREF + 0.1 V IN− −0.1 +0.1 V Analog Input Common-Mode Rejection Ratio (CMRR) fIN = 100 kHz 60 dB Leakage Current at 25°C Acquisition phase 1 nA ACCURACY No Missing Codes 16 Bits Differential Nonlinearity VREF = 5 V −0.9 ±0.4 +0.9 LSB1 VREF = 2.5 V ±0.5 LSB1 Integral Nonlinearity VREF = 5 V −2.0 ±0.7 +2.0 LSB1 VREF = 2.5 V ±0.6 LSB1 Transition Noise VREF = 5 V 0.75 LSB1 VREF = 2.5 V 1.2 LSB1 Gain Error2 TMIN to TMAX ±2 LSB1 Gain Error Temperature Drift ±0.35 ppm/°C Zero Error2 TMIN to TMAX −1 ±0.08 +1 mV Zero Temperature Drift 0.45 ppm/°C Power Supply Sensitivity VDD = 2.5 V ± 5% ±0.1 LSB1 THROUGHPUT Conversion Rate 0 600 kSPS Transient Response Full-scale step 290 ns AC ACCURACY3 Dynamic Range VREF = 5 V 92 dB VREF = 2.5 V 87 dB Oversampled Dynamic Range4 OSR = 256 110 dB Signal-to-Noise Ratio (SNR) fIN = 1 kHz, VREF = 5 V 89 91 dB fIN = 1 kHz, VREF = 2.5 V 86 dB Spurious-Free Dynamic Range (SFDR) fIN = 1 kHz 104 dB Total Harmonic Distortion (THD) fIN = 1 kHz −102 dB Signal-to-Noise-and-Distortion (SINAD) fIN = 1 kHz, VREF = 5 V 90.5 dB fIN = 1 kHz, VREF = 2.5 V 85.5 dB 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 ac accuracy specifications in dB are referred to an input full-scale range (FSR). Tested with an input signal at 0.5 dB below ful scale, unless otherwise specified. 4 The oversampled dynamic range is the ratio of the peak signal power to the noise power (for a small input) measured in the ADC output FFT from dc up to fS/(2 × OSR), where fS is the ADC sample rate and OSR is the oversampling ratio. Rev. A | Page 3 of 9 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY OUTLINE DIMENSIONS DIE SPECIFICATIONS AND ASSEMBLY RECOMMENDATIONS ORDERING GUIDE