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AD1937WBSTZ Datenblatt(PDF) 4 Page - Analog Devices |
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AD1937WBSTZ Datenblatt(HTML) 4 Page - Analog Devices |
4 / 37 page AD1937 Rev. B | Page 3 of 36 SPECIFICATIONS TEST CONDITIONS Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications. Table 1. Parameter Value Supply Voltages (AVDD, DVDD) 3.3 V Temperature As specified in Table 2 and Table 3 Master Clock 12.288 MHz (48 kHz fS, 256 × fS mode) Input Sample Rate 48 kHz Measurement Bandwidth 20 Hz to 20 kHz Word Width 24 bits Load Capacitance (Digital Output) 20 pF Load Current (Digital Output) ±1 mA or 1.5 kΩ to ½ DVDD supply Input Voltage High 2.0 V Input Voltage Low 0.8 V ANALOG PERFORMANCE SPECIFICATIONS Specifications guaranteed at a TA of 25°C. Table 2. Parameter Conditions/Comments Min Typ Max Unit ANALOG-TO-DIGITAL CONVERTERS ADC Resolution All ADCs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 96 102 dB With A-Weighted Filter (RMS) 98 105 dB Total Harmonic Distortion + Noise −1 dBFS −96 −87 dB Full-Scale Input Voltage (Differential) 1.9 V rms Gain Error −10 +10 % Interchannel Gain Mismatch −0.25 +0.25 dB Offset Error −10 0 +10 mV Gain Drift 100 ppm/°C Interchannel Isolation −110 dB CMRR 100 mV rms, 1 kHz 55 dB 100 mV rms, 20 kHz 55 dB Input Resistance 14 kΩ Input Capacitance 10 pF Input Common-Mode Bias Voltage 1.5 V DIGITAL-TO-ANALOG CONVERTERS DAC Resolution All DACs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 102 107 dB With A-Weighted Filter (RMS) 105 110 dB With A-Weighted Filter (Average) 112 dB |
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