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TLC3574_14 Datasheet, PDF (10/50 Pages) Texas Instruments – 14-Bit Resolution for TLC3574/78, 12-Bit for TLC2574/2578 | |||
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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
TLC3574I N package device AC/DC performance (continued)
PARAMETER
TEST CONDITIONS
MIN TYPâ MAX UNIT
AC AccuracyâNormal Short Sampling
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
Channel-to-channel isolation
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
Fixed channel in conversion mode 00, fi= 35 kHz,
See Notes 2 and 5
76
dB
70
â81
dB
â74
78
dB
75
12.3
Bits
11.3
83
dB
75
81
dB
Analog input bandwidth
Full power bandwidth, â3 dB
Full power bandwidth, â1 dB
1
MHz
700
kHz
â All typical values are at TA = 25°C.
NOTES: 2. This is for a fixed channel in conversion mode 00 or 01. When switching the channels, additional multiplexer setting time is required
to overcome the memory effect of the charge redistribution DAC.
5. 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.
10
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