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AK4522VF Datasheet(PDF) 5 Page - Asahi Kasei Microsystems |
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AK4522VF Datasheet(HTML) 5 Page - Asahi Kasei Microsystems |
5 / 18 page ASAHI KASEI [AK4522] M0020-E-01 1998/10 - 5 - ANALOG CHARACTERISTICS (Ta=25 °C; VA, VD=5V; AGND, DGND=0V; VREFH=VA; fs=44.1kHz; SCLK=64fs; Signal Frequency =1kHz; 20bit Data; Measurement Frequency=10Hz ∼ 20kHz; unless otherwise specified) Parameter min typ max Units ADC Analog Input Characteristics: Differential Inputs; Analog Source Impedance=470 Ω Resolution 20 Bits S/(N+D) (-0.5dB Input) (Note 4) 84 92 dB DR (-60dB Input, A-Weighted) (Note 5) 94 100 dB S/N (A-Weighted) (Note 5, 6) 94 100 dB Interchannel Isolation 90 110 dB Interchannel Gain Mismatch 0.1 0.3 dB Gain Drift 20 ppm/ °C Input Voltage (AIN=0.6 x VREFH) (Note 7) 2.85 3.0 3.15 Vpp Input Resistance 20 30 k Ω Power Supply Rejection (Note 8) 50 dB DAC Analog Output Characteristics: Resolution 20 Bits S/(N+D) 80 90 dB DR (-60dB Output, A-Weighted) (Note 5) 95 100 dB S/N (A-Weighted) (Note 6, 9) 95 100 dB Interchannel Isolation 90 110 dB Interchannel Gain Mismatch 0.2 0.5 dB Gain Drift 20 ppm/ °C Output Voltage (AOUT=0.6 x VREFH) 2.65 2.9 3.15 Vpp Load Resistance 5 k Ω Load Capacitance 25 pF Power Supply Rejection (Note 8) 50 dB Power Supplies Power Supply Current (VA=VD=5V) Analog, VA PD =”H” 42 55 mA Digital, VD PD =”H” 10 20 mA Note: 4. In case of single ended input, S/(N+D)=80dB(typ, @VA=5V). 5. In case of 16bit, DR and S/N of ADC are 98dB. DR of DAC is 98dB. 6. S/N measured by CCIR-ARM is 96dB at each converter and 94dB at ADC to DAC loopback. 7. Full scale input for each AIN+/- pin is 1.5Vpp in differential mode. 8. PSR is applied to VA, VD with 1kHz, 50mVpp. VREFH pin is held a constant voltage. 9. As the input data is “0”, S/N is 100dB regardless of resolution. |
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