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AD7665 데이터시트(PDF) 4 Page - Analog Devices |
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AD7665 데이터시트(HTML) 4 Page - Analog Devices |
4 / 28 page AD7674 Rev. A | Page 4 of 28 Parameter Conditions Min Typ Max Unit REFERENCE External Reference Voltage Range REF 3 4.096 AVDD + 0.1 V REF Voltage with Reference Buffer REFBUFIN = 2.5 V 4.05 4.096 4.15 V Reference Buffer Input Voltage Range REFBUFIN 1.8 2.5 2.6 V REFBUFIN Input Current –1 +1 μA REF Current Drain 800 kSPS throughput 330 μA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 V VIH +2.0 DVDD + 0.3 V IIL –1 +1 μA IIH –1 +1 μA DIGITAL OUTPUTS Data Format5 Pipeline Delay6 VOL ISINK = 1.6 mA 0.4 V VOH ISOURCE = –500 μA OVDD – 0.6 V POWER SUPPLIES Specified Performance AVDD 4.75 5 5.25 V DVDD 4.75 5 5.25 V OVDD 2.7 DVDD + 0.37 V Operating Current8 800 kSPS throughput AVDD 16 mA DVDD9 6.5 mA OVDD9 50 μA POWER DISSIPATION9 PDBUF high @ 500 kSPS10 78 90 mW PDBUF high @ 1 kSPS10 160 μW PDBUF high @ 800 kSPS8 114 126 mW PDBUF low @ 800 kSPS8 126 138 mW TEMPERATURE RANGE11 Specified Performance TMIN to TMAX –40 +85 °C 1 See Analog Inputs section. 2 LSB means Least Significant Bit. With the ±4.096 V input range, 1 LSB is 31.25 μV. 3 See Definitions of Specifications section. The nominal gain error is not centered at zero and is −0.029% of FSR. This specification is the deviation from this nominal value. These specifications do not include the error contribution from the external reference, but do include the error contribution from the reference buffer if used. 4 All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale unless otherwise specified. 5 Data Format Parallel or Serial 18-Bit. 6 Conversion results are available immediately after completed conversion. 7 The max should be the minimum of 5.25 V and DVDD + 0.3 V. 8 In Warp mode. 9 Tested in Parallel Reading mode. 10 In Impulse mode. 11 Contact factory for extended temperature range. |
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