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ADS8284IRGCT Arkusz danych(PDF) 8 Page - Texas Instruments |
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ADS8284IRGCT Arkusz danych(HTML) 8 Page - Texas Instruments |
8 / 46 page Not Recommended for New Designs ADS8284 SLAS628A – MARCH 2009 – REVISED APRIL 2014 www.ti.com Electrical Characteristics (continued) TA = –40°C to 85°C, VCC = 5 V, VEE = –5 V, +VA = 5 V, +VBD = 5 V or 3.3 V, Vref = 4 V, fSAMPLE = 1 MSPS (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ADS8284I 98.3 VIN = 4 Vpp at 2 kHz dB ADS8284IB 98.3 ADS8284I 97.2 Signal-to-noise + distortion VIN = 4 Vpp at 10 kHz dB (SINAD) ADS8284IB 97.2 ADS8284I 93.8 VIN = 4 Vpp at 100 kHz, dB LoPWR = 0 ADS8284IB 95.23 ADS8284I 121 VIN = 4 Vpp at 2 kHz dB ADS8284IB 121 ADS8284I 106 Spurious free dynamic VIN = 4 Vpp at 10 kHz dB range (SFDR) ADS8284IB 106 ADS8284I 101 VIN = 4 Vpp at 100 kHz, dB LoPWR = 0 ADS8284IB 101 –3dB small signal bandwidth 8 MHz VOLTAGE REFERENCE INPUT (REFIN) Reference voltage at REFIN, Vref 3.0 4.096 +VA – 0.8 V Reference input current(6) 1 1 μA INTERNAL REFERENCE OUTPUT (REFOUT) Internal reference start-up time From 95% (+VA), with 1- μF storage capacitor 120 ms Reference voltage range, Vref 4.081 4.096 4.111 V Source current Static load 10 μA Line regulation +VA = 4.75 V to 5.25 V 60 μV Drift IO = 0 ±6 PPM/°C BUFFERED REFERENCE OUTPUT (BUF-REF) Output current REFIN = 4 V, at 85°C 70 mA REFERENCE/2 OUTPUT (VCMO) Reference/2 Voltage Range At No Load on VCMO 1.938 2.048 2.158 V Output current REFIN = 4 V, at +85°C 50 μA ANALOG MULTIPLEXER Number of channels 4 Channel to channel crosstalk 100 kHz i/p –95 dB Auto sequencer with selection of channel count or Channel selection manual selection through control lines DIGITAL INPUT-OUTPUT ADC CONTROL PINS Logic Family-CMOS VIH IIH = 5 μA +V BD–1 +VBD + 0.3 V VIL IIL = 5 μA 0.3 0.8 V Logic level VOH IOH = 2 TTL loads +VBD–0.6 +VBD V VOL IOL = 2 TTL loads 0 0.4 V MULTIPLEXER CONTROL PINS Logic Family - CMOS IIH IIH = 5 μA 2.3 +VA +0.3 V Logic level IIL IIL = 5 μA –0.3 0.8 V POWER CONTROL PINS Logic Family - CMOS VIH IIH = 5 μA 2.3 +VA +0.3 V Logic level VIL IIL = 5 μA –0.3 0.8 V (6) Can vary ±20% 8 Submit Documentation Feedback Copyright © 2009–2014, Texas Instruments Incorporated Product Folder Links: ADS8284 |
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