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AD5934YRSZ Scheda tecnica(PDF) 3 Page - Analog Devices |
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AD5934YRSZ Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 32 page AD5934 Rev. 0 | Page 3 of 32 SPECIFICATIONS Test conditions unless otherwise stated: VDD = 3.3 V, MCLK = 16.776 MHz, 2 V p-p output excitation voltage @ 30 kHz, 200 kΩ connected between Pin 5 and Pin 6. Feedback resistor = 200 kΩ connected between Pin 4 and Pin 5. PGA gain = ×1. Table 2. Y Version1 Parameter Min Typ Max Unit Test Conditions/Comments SYSTEM Impedance Range 0.001 10 MΩ Total System Accuracy 0.5 % System Impedance Error Drift 30 ppm/°C TRANSMIT STAGE Output Frequency Range2 1 100 kHz Output Frequency Resolution 0.1 Hz <0.1 Hz resolution achievable using DDS techniques. MCLK Frequency 16.776 MHz Maximum system clock frequency. TRANSMIT OUTPUT VOLTAGE Range 1 AC Output Excitation Voltage3 1.98 V p-p Refer to Figure 4 for output voltage distribution. DC Bias4 1.48 V DC bias of the AC excitation signal. See Figure 5. DC Output Impedance 200 Ω TA = 25°C. Short-Circuit Current to Ground at VOUT ±5.8 mA TA = 25°C. Range 2 AC Output Excitation Voltage3 0.97 V p-p See Figure 6. DC Bias4 0.76 V DC bias of output excitation signal. See Figure 7. DC Output Impedance 2.4 kΩ Short-Circuit Current to Ground at VOUT ±0.25 mA Range 3 AC Output Excitation Voltage3 0.383 V p-p See Figure 8. DC Bias4 0.31 V DC bias of output excitation signal. See Figure 9. DC Output Impedance 1 kΩ Short-Circuit Current to Ground at VOUT ±0.20 mA Range 4 AC Output Excitation Voltage3 0.198 V p-p See Figure 10. DC Bias4 0.173 V DC bias of output excitation signal. See Figure 11. DC Output Impedance 600 Ω Short-Circuit Current to Ground at VOUT ±0.15 mA Short-Circuit Current to Ground ±0.15 mA SYSTEM AC CHARACTERISTICS Signal-to-Noise Ratio 60 dB Total Harmonic Distortion −52 dB Spurious-Free Dynamic Range Wide Band (0 MHz to 1 MHz) −56 dB Narrowband (±5 kHz) −85 dB |
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