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ADS8381 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS8381 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 35 page ADS8381 SLAS364D − APRIL 2002 − REVISED FEBRUARY 2005 www.ti.com 4 SPECIFICATIONS (CONTINUED) TA = −40°C to 85°C, +VA = +5 V, +VBD = 3 V or 5 V, Vref = 4.096 V, fSAMPLE = 580 kHz (unless otherwise noted) PARAMETER TEST ADS8381IB ADS8381I UNIT PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT Dynamic Characteristics 1 kHz −112 −110 Total harmonic distortion (THD) (see Note 1) 10 kHz −106 −100 dB Total harmonic distortion (THD) (see Note 1) 50 kHz −98 −95 dB 100 kHz −95 −90 1 kHz 88 87 Signal to noise ratio (SNR) (see Note 1) 10 kHz 88 87 dB Signal to noise ratio (SNR) (see Note 1) 50 kHz 88 87 dB 100 kHz 88 87 1 kHz 88 87 Signal to noise + distortion 10 kHz 88 87 dB Signal to noise + distortion (SINAD) (see Note 1) 50 kHz 87 86 dB (SINAD) (see Note 1) 100 kHz 87 86 1 kHz 113 112 Spurious free dynamic range (SFDR) (see 10 kHz 108 98 dB Spurious free dynamic range (SFDR) (see Note 1) 50 kHz 99 96 dB Note 1) 100 kHz 97 90 −3dB Small signal bandwidth 3 3 MHz Voltage Reference Input Reference voltage at REFIN, Vref 2.5 4.096 4.2 2.5 4.096 4.2 V Reference resistance (see Note 2) 500 500 k Ω Reference current drain fs = 580 kHz 1 1 mA (1) Calculated on the first nine harmonics of the input frequency (2) Can vary ±20% |
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