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TLC2578IPW Arkusz danych(PDF) 11 Page - Texas Instruments |
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TLC2578IPW Arkusz danych(HTML) 11 Page - Texas Instruments |
11 / 49 page TLC3574, TLC3578, TLC2574, TLC2578 5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS SLAS262C − OCTOBER 2000 − REVISED MAY 2003 11 WWW.TI.COM TLC2574/78 DW and PW package devices AC/DC performance PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT DC Accuracy EL Integral linearity error See Note 6 −1 ±0.5 1 LSB ED Differential linearity error −1 ±0.5 1 LSB EO Bipolar zero error See Note 7 −0.30 ±0.08 0.36 %FS EFS(+) Positive full scale error See Note 7 −0.55 ±0.04 0.61 %FS EFS(−) Negative full scale error See Note 7 −0.30 ±0.13 0.79 %FS AC Accuracy SINAD Signal-to-noise ratio + distortion fi = 20 kHz 70 72 dB SINAD Signal-to-noise ratio + distortion fi = 100 kHz 70 dB THD Total harmonic distortion fi = 20 kHz −82 −76 dB THD Total harmonic distortion fi = 100 kHz −80 dB SNR Signal-to-noise ratio fi= 20 kHz 71 72 dB SNR Signal-to-noise ratio fi = 100 kHz 71 dB ENOB Effective number of bits fi = 20 kHz 11.3 11.7 Bits ENOB Effective number of bits fi = 100 kHz 11.3 Bits SFDR Spurious free dynamic range fi = 20 kHz 78 83 dB SFDR Spurious free dynamic range fi = 100 kHz 80 dB Analog input bandwidth Full power bandwidth, −3 dB 1 MHz Analog input bandwidth Full power bandwidth, −1 dB 700 kHz Channel-to-channel Isolation Fixed channel in conversion mode 00, fi = 35 kHz, See Note 8 81 dB † All typical values are at TA = 25°C. NOTES: 6. Linear error is the maximum deviation from the best fit straight line through the A/D transfer characteristics. 7. Bipolar zero error is the difference between 100000000000 and the converted output for zero input voltage; positive full-scale error is the difference between 111111111111 and the converted output for positive full-scale input voltage (10 V); negative full-scale error is the difference between 000000000000 and the converted output for negative full-scale input voltage (−10 V). 8. It is measured by applying a full-scale of 35 kHz signal to other channels and determining how much the signal is attenuated in the channel of interest. The converter samples this examined channel continuously. The channel-to-channel isolation is degraded if the converter samples different channels alternately. |
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