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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AD1878JD Datenblatt(PDF) 2 Page - Analog Devices |
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AD1878JD Datenblatt(HTML) 2 Page - Analog Devices |
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2 / 16 page  REV. 0 AD1878/AD1879–SPECIFICATIONS –2– TEST CONDITIONS UNLESS OTHERWISE NOTED Supply Voltages ±5V Ambient Temperature 25 °C Input Clock (FCLOCK) 12.288 MHz Input Signal 974 Hz –0.5 dB Full Scale All minimums and maximums tested except as noted. ANALOG PERFORMANCE Min Typ Max Units AD1879 Resolution 18 Bits AD1878 Resolution 16 Bits Clock Input Frequency Range CLOCK Input (FCLOCK) 0.01 12.288 14.286 MHz Modulator Sample Rate (FCLOCK/4) 0.0025 3.072 3.5715 MHz Output Word Rate (FS = FCLOCK/256) 0.039 48 55.8 kHz AD1879 Dynamic Range (0 kHz to 20 kHz, –60 dB input) Stereo Mode (No A-Weight Filter) 100 103 dB Mono Mode 1 (No A-Weight Filter) 106 dB Stereo Mode (with A-Weight Filter) 105 dB AD1879 Trimmed 2 Signal to (Noise + Distortion) Full Scale 93 98 dB –20 dB 83 dB AD1879 Untrimmed 3 Signal to (Noise + Distortion) Full Scale 91 96 dB –20 dB 83 dB AD1879 Trimmed 2 Signal to Total Harmonic Distortion Full Scale 98 dB –20 dB 100 dB AD1878 Dynamic Range (0 kHz to 20 kHz, –60 dB 1.0936 kHz Input Dithered with a –10 dB 21.873 kHz Sine Wave) Stereo Mode (No A-Weight Filter) 95 97 dB AD1878 Trimmed 2 Signal to (Noise + Distortion) Full Scale 93 95 dB –20 dB 77 dB AD1878 Untrimmed 3 Signal to (Noise + Distortion) Full Scale 91 94 dB –20 dB 77 dB AD1878 Trimmed 2 Signal to Total Harmonic Distortion Full Scale 98 dB –20 dB 100 dB Analog Inputs Differential Input Range 4 ±5.985 ±6.3 ±6.615 V Input Impedance at Each Input Pin 7.0 k Ω DC Accuracy Gain Error ±1 ±5% Interchannel Gain Mismatch 0.05 0.15 dB Gain Drift 150 ppm/ °C AD1879 Midscale Offset Error ±200 ±750 18-Bit LSBs AD1878 Midscale Offset Error ±50 ±200 16-Bit LSBs Midscale Drift 13 ppm/ °C Voltage Reference 2.4 2.86 3.2 V Crosstalk (EIAJ Method) 100 105 dB Interchannel Phase Deviation ±0.001 Degrees NOTES 1Both channels connected together for mono operations as described below in “How to Extend SNR.” 2Differential gain imbalance manually trimmed to eliminate second harmonic. See “Applications Issues” below. 3Test performed without part-to-part trimming. 4The differential input range is twice the range seen at each input pin. The input range corresponds to the full-scale digital output range. Specifications subject to change without notice. |
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