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ADS7960SDBTR Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS7960SDBTR Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 66 page ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958, ADS7959, ADS7960, ADS7961 SLAS605A – JUNE 2008 – REVISED JANUARY 2010 www.ti.com ELECTRICAL CHARACTERISTICS, ADS7950/51/52/53 (continued) +VA = 2.7 V to 5.25 V, +VBD = 1.7 V to 5.25 V, Vref = 2.5 V ± 0.1 V, TA = -40°C to 125°C, fsample = 1 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vref reference voltage at REFP (6) 2.0 2.5 3.0 V Reference resistance 100 k Ω ALARM SETTING Higher threshold range 0 FFC Hex Lower threshold range 0 FFC Hex DIGITAL INPUT/OUTPUT Logic family CMOS VIH 0.7*(+VBD) VIL +VBD = 5 V 0.8 Logic level VIL +VBD = 3 V 0.4 V VOH At Isource = 200 mA Vdd-0.2 VOL At Isink = 200 mA 0.4 Data format MSB first MSB First POWER SUPPLY REQUIREMENTS +VA supply voltage 2.7 3.3 5.25 V +VBD supply voltage 1.7 3.3 5.25 V At +VA = 2.7 to 3.6 V and 1MHz throughput 1.8 mA At +VA = 2.7 to 3.6 V static state 1.05 mA Supply current (normal mode) At +VA = 4.7 to 5.25 V and 1 MHz throughput 2.3 3 mA At +VA = 4.7 to 5.25 V static state 1.1 1.5 mA Power-down state supply current 1 mA +VBD supply current +VA = 5.25V, fs = 1MHz 1 mA Power-up time 1 mSec Invalid conversions after power up or 1 Number reset s TEMPERATURE RANGE Specified performance –40 125 °C (6) Device is designed to operate over Vref = 2.0 V to 3.0 V. However one can expect lower noise performance at Vref < 2.4 V. This is due to SNR degradation resulting from lowered signal range. ELECTRICAL CHARACTERISTICS, ADS7954/55/56/57 +VA = 2.7 V to 5.25 V, +VBD = 1.7 V to 5.25 V, Vref = 2.5 V ± 0.1 V, TA = -40°C to 125°C, fsample = 1 MHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Range 1 0 Vref Full-scale input span(1) V Range 2 while 2Vref ≤ +VA 0 2*Vref VREF Range 1 –0.20 +0.20 Absolute input range V 2*VREF Range 2 while 2Vref ≤ +VA –0.20 +0.20 Input capacitance 15 rF Input leakage current TA = 125°C 61 nA SYSTEM PERFORMANCE Resolution 10 Bits No missing codes 10 Bits (1) Ideal input span; does not include gain or offset error. 6 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958, ADS7959, ADS7960, ADS7961 |
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