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ADS7952SBRHBR Datasheet(PDF) 7 Page - Texas Instruments |
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ADS7952SBRHBR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 65 page ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958, ADS7959, ADS7960, ADS7961 www.ti.com SLAS605A – JUNE 2008 – REVISED JANUARY 2010 ELECTRICAL CHARACTERISTICS, ADS7954/55/56/57 (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 Integral linearity –0.5 ±0.2 0.5 LSB(2) Differential linearity –0.5 ±0.2 0.5 LSB Offset error(3) –1.5 ±0.5 1.5 LSB Range 1 –1 ±0.1 1 Gain error LSB Range 2 ±0.1 SAMPLING DYNAMICS Conversion time 20 MHz SCLK 800 nSec Acquisition time 325 nSec Maximum throughput rate 20 MHz SCLK 1.0 MHz Aperture delay 5 nsec Step response 150 nsec Over voltage recovery 150 nsec DYNAMIC CHARACTERISTICS Total harmonic distortion(4) 100 kHz –80 dB Signal-to-noise ratio 100 kHz 60 dB Signal-to-noise + distortion 100 kHz 60 Spurious free dynamic range 100 kHz 82 dB Full power bandwidth At –3 dB 47 MHz Any off-channel with 100kHz, Full-scale input to –95 channel being sampled with DC input. Channel-to-channel crosstalk dB From previously sampled to channel with 100kHz, –85 Full-scale input to channel being sampled with DC input. EXTERNAL REFERENCE INPUT Vref reference voltage at REFP 2.0 2.5 3.0 V Reference resistance 100 k Ω ALARM SETTING Higher threshold range 000 FFC Hex Lower threshold range 000 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 1 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 (2) LSB means Least Significant Bit. (3) Measured relative to an ideal full-scale input (4) Calculated on the first nine harmonics of the input frequency. Copyright © 2008–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958, ADS7959, ADS7960, ADS7961 |
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