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ADS8254IRGCR Arkusz danych(PDF) 5 Page - Texas Instruments |
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ADS8254IRGCR Arkusz danych(HTML) 5 Page - Texas Instruments |
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5 / 36 page  ADS8254 www.ti.com................................................................................................................................................................................................... SLAS643 – MARCH 2009 SPECIFICATIONS (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 ADS8254I 95.2 VIN = 4 Vpp at 2 kHz dB ADS8254IB 95.2 ADS8254I 94.5 Signal to noise + distortion VIN = 4 Vpp at 10 kHz dB (SINAD) ADS8254IB 94.5 ADS8254I 92.2 VIN = 4 Vpp at 100 kHz, dB LoPWR = 0 ADS8254IB 93.4 ADS8254I 120 VIN = 4 Vpp at 2 kHz dB ADS8254IB 120 ADS8254I 106 Spurious free dynamic VIN = 4 Vpp at 10 kHz dB range (SFDR) ADS8254IB 106 ADS8254I 101 VIN = 4 Vpp at 100 kHz, dB LoPWR = 0 ADS8254IB 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(5) 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 ~ 5.25 V 60 µV Drift IO = 0 ±6 PPM/°C BUFFERED REFERENCE OUTPUT (BUF-REF) Output current REFIN = 4V, at 85°C 70 mA REFERENCE/2 OUTPUT (VCMO) Output current REFIN = 4V, at +85°C 50 µA ANALOG MULTIPLEXER Number of channels 8 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 +VBD–1 +VBD + 0.3 V VIL IIL = 5 µA 0.3 0.8 V Logic level VOH IOH = 2 TTL loads +VBD–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 (5) Can vary ±20% Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s) :ADS8254 |
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