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TLC2578IDWR Datasheet, PDF (11/49 Pages) Texas Instruments – 5-V ANALOG 3-5V DIGITAL 14-12BIT 200-KSPS 4-8CHANNEL SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH | |||
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TLC3574, TLC3578, TLC2574, TLC2578
5ÄV ANALOG, 3Ä/5ÄV DIGITAL, 14Ä/12ÄBIT, 200ÄKSPS, 4Ä/8ÄCHANNEL
SERIAL ANALOGÄTOÄDIGITAL CONVERTERS WITH ±10ÄV INPUTS
SLAS262C â OCTOBER 2000 â REVISED MAY 2003
TLC2574/78 DW and PW package devices AC/DC performance
PARAMETER
TEST CONDITIONS
MIN TYPâ MAX UNIT
DC Accuracy
EL
Integral linearity error
ED
Differential linearity error
EO
Bipolar zero error
EFS(+) Positive full scale error
EFS(â) Negative full scale error
AC Accuracy
See Note 6
See Note 7
See Note 7
See Note 7
â1 ±0.5
1 LSB
â1 ±0.5
1 LSB
â0.30 ±0.08 0.36 %FS
â0.55 ±0.04 0.61 %FS
â0.30 ±0.13 0.79 %FS
SINAD Signal-to-noise ratio + distortion
THD
Total harmonic distortion
SNR
Signal-to-noise ratio
ENOB Effective number of bits
SFDR Spurious free dynamic range
Analog input bandwidth
fi = 20 kHz
fi = 100 kHz
fi = 20 kHz
fi = 100 kHz
fi= 20 kHz
fi = 100 kHz
fi = 20 kHz
fi = 100 kHz
fi = 20 kHz
fi = 100 kHz
Full power bandwidth, â3 dB
Full power bandwidth, â1 dB
70
72
dB
70
â82 â76
dB
â80
71
72
dB
71
11.3 11.7
Bits
11.3
78
83
dB
80
1
MHz
700
kHz
Channel-to-channel Isolation
Fixed channel in conversion mode 00, fi = 35 kHz,
See Note 8
81
dB
â 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 (â10 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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