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TLC2578IDWR Datasheet, PDF (25/49 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
operation cycle timing
CS Initiates
Operation
4 SCLKs
12 SCLKs for Short
44 SCLKs for Long
18 OSC for Internal OSCâ¡
72 SCLK for External Clock
15 ns
t(setup)â
t(sample)
SDI 4-bit Command 12-bit CFR Data (Optional)
SDO§ 14-bit Data (Previous Conversion) 2-bit Donât Care
Active CS (FS Is Tied to High)
t(convert)
t(overhead)
FS Initiates
Operation
CSTAR (For Extended Sampling) occurs at
or after the rising edge of eleventh SCLK
Delay From CS
Low to FS High 4 SCLKs
12 SCLKs for Short
44 SCLKs for Long
18 OSC for Internal OSCâ¡
72 SCLK for External Clock 15 nS
t(delay)â
t(setup)â
t(sample)
SDI 4-bit Command
12-bit CFR Data (Optional)
SDO§ 14-bit Data (Previous Conversion) 2-bit Donât Care
Active CS (CS Can Be Tied to Low)
t(convert)
t(overhead)
Active FS
CSTAR (For Extended Sampling) occurs at
or after the rising edge of eleventh SCLK
â Non JEDEC terms used.
â¡ 18 internal OSC or 72 SCLK for TLC3574 and TLC3578,
13 internal OSC or 52 SCLK for TLC2574 and TLC2578.
§ For TLC3574 and TLC3578, 14-bits are result of previous conversion, last two bits are donât care. For TLC2574 and TLC2578, 12-bits are result
of previous conversion, last four bits are donât care.
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