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AD7887ARMZ-REEL Arkusz danych(PDF) 5 Page - Analog Devices |
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AD7887ARMZ-REEL Arkusz danych(HTML) 5 Page - Analog Devices |
5 / 25 page AD7887 Data Sheet Parameter AVersion1 BVersion1 Unit Test Conditions/Comments CONVERSION RATE Throughput Time 16 16 SCLK cycles Conversion time plus acquisition time is 125 kSPS, with 2 MHz Clock Track/Hold Acquisition Time2 1.5 1.5 SCLK cycles Conversion Time 14.5 14.5 SCLK cycles 7.25 μs (2 MHz Clock) POWER REQUIREMENTS VDD +2.7/+5.25 +2.7/+5.25 V min/max IDD Normal Mode5 (Mode 2) Static 700 700 μA max Operational (fSAMPLE = 125 kSPS) 850 850 μA typ Internal reference enabled 700 700 μA typ Internal reference disabled Using Standby Mode (Mode 4) 450 450 μA typ fSAMPLE = 50 kSPS Using Shutdown Mode (Modes 1, 3) 120 120 μA typ fSAMPLE = 10 kSPS 12 12 μA typ fSAMPLE = 1 kSPS Standby Mode6 210 210 μA max VDD = 2.7 V to 5.25 V Shutdown Mode6 1 1 μA max VDD = 2.7 V to 3.6 V 2 2 μA max VDD = 4.75 V to 5.25 V Normal Mode Power Dissipation 3.5 3.5 mW max VDD = 5 V 2.1 2.1 mW max VDD = 3 V Shutdown Power Dissipation 5 5 μW max VDD = 5 V 3 3 μW max VDD = 3 V Standby Power Dissipation 1.05 1.05 mW max VDD = 5 V 630 630 μW max VDD = 3 V 1 Temperature range for A and B versions is −40°C to +125°C. 2 See the Terminology section. 3 SNR calculation includes distortion and noise components. 4 Sample tested at +25°C to ensure compliance. 5 All digital inputs at GND except CS at VDD. No load on the digital outputs. Analog inputs at GND. 6 SCLK at GND when SCLK off. All digital inputs at GND except for CS at VDD. No load on the digital outputs. Analog inputs at GND. Rev. E | Page 4 of 24 |
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