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ADS8881CDGSR Datasheet(PDF) 8 Page - Texas Instruments |
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ADS8881CDGSR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 57 page ADS8881C, ADS8881I SBAS547D – MAY 2013 – REVISED AUGUST 2015 www.ti.com Electrical Characteristics (continued) All minimum and maximum specifications are at AVDD = 3 V, DVDD = 3 V, VREF = 5 V, VCM = VREF / 2 V, and fSAMPLE = 1 MSPS, over the operating free-air temperature range, unless otherwise noted. Typical specifications are at TA = 25°C, AVDD = 3 V, and DVDD = 3 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS At 1 kHz, VREF = 5 V 98 99.9 SINAD Signal-to-noise + distortion(6) At 10 kHz, VREF = 5 V 98.7 dB At 100 kHz, VREF = 5 V 93.3 At 1 kHz, VREF = 5 V 98.5 100 SNR Signal-to-noise ratio(6) At 10 kHz, VREF = 5 V 99.5 dB At 100 kHz, VREF = 5 V 93.5 At 1 kHz, VREF = 5 V –115 THD Total harmonic distortion(6)(7) At 10 kHz, VREF = 5 V –112 dB At 100 kHz, VREF = 5 V –102 At 1 kHz, VREF = 5 V 115 Spurious-free dynamic SFDR At 10 kHz, VREF = 5 V 112 dB range(6) At 100 kHz, VREF = 5 V 102 BW–3dB –3-dB small-signal bandwidth 30 MHz POWER-SUPPLY REQUIREMENTS AVDD Analog supply 2.7 3 3.6 Power-supply Digital supply range for SCLK > 40 MHz 2.7 3 3.6 V voltage DVDD Digital supply range for SCLK < 40 MHz 1.65 1.8 3.6 Supply current AVDD 1-MHz sample rate, AVDD = 3 V 1.8 2.4 mA 1-MHz sample rate, AVDD = 3 V 5.5 7.2 mW PVA Power dissipation 100-kHz sample rate, AVDD = 3 V 0.55 10-kHz sample rate, AVDD = 3 V 55 μW Device power-down IAPD 50 nA current(8) DIGITAL INPUTS: LOGIC FAMILY (CMOS) 1.65 V < DVDD < 2.3 V 0.8 × DVDD DVDD + 0.3 VIH High-level input voltage V 2.3 V < DVDD < 3.6 V 0.7 × DVDD DVDD + 0.3 1.65 V < DVDD < 2.3 V –0.3 0.2 × DVDD VIL Low-level input voltage V 2.3 V < DVDD < 3.6 V –0.3 0.3 × DVDD ILK Digital input leakage current ±10 ±100 nA DIGITAL OUTPUTS: LOGIC FAMILY (CMOS) VOH High-level output voltage IO = 500-μA source, CLOAD = 20 pF 0.8 × DVDD DVDD V VOL Low-level output voltage IO = 500-μA sink, CLOAD = 20 pF 0 0.2 × DVDD V TEMPERATURE RANGE ADS8881C 0 70 Operating free-air TA °C temperature ADS8881I –40 85 (6) All specifications expressed in decibels (dB) refer to the full-scale input (FSR) and are tested with an input signal 0.5 dB below full-scale, unless otherwise specified. (7) Calculated on the first nine harmonics of the input frequency. (8) The device automatically enters a power-down state at the end of every conversion, and remains in power-down during the acquisition phase. 8 Submit Documentation Feedback Copyright © 2013–2015, Texas Instruments Incorporated Product Folder Links: ADS8881C ADS8881I |
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