TLC3574_14 Datasheet, PDF (21/50 Pages) Texas Instruments – 14-Bit Resolution for TLC3574/78, 12-Bit for TLC2574/2578

TLC3574, TLC3578, TLC2574, TLC2578
5ĆV ANALOG, 3Ć/5ĆV DIGITAL, 14Ć/12ĆBIT, 200ĆKSPS, 4Ć/8ĆCHANNEL
SERIAL ANALOGĆTOĆDIGITAL CONVERTERS WITH ±10ĆV INPUTS
SLAS262C − OCTOBER 2000 − REVISED MAY 2003
command period (continued)
Table 1. Command Set (CMR)
SDI Bit D[15:12]
BINARY HEX
TLC3578 / 2578 COMMAND
TLC3574 / 2574 COMMAND
0000b
0h SELECT analog input channel 0
SELECT analog input channel 0
0001b
1h SELECT analog input channel 1
SELECT analog input channel 1
0010b
2h SELECT analog input channel 2
SELECT analog input channel 2
0011b
3h SELECT analog input channel 3
SELECT analog input channel 3
0100b
4h SELECT analog input channel 4
SELECT analog input channel 0
0101b
5h SELECT analog input channel 5
SELECT analog input channel 1
0110b
6h SELECT analog input channel 6
SELECT analog input channel 2
0111b
7h SELECT analog input channel 7
SELECT analog input channel 3
1000b
8h Reserved
1001b
9h Reserved
1010b
Ah WRITE CFR, the last 12 bits of SDI are written into CFR. This command resets FIFO.
1011b
Bh SELECT TEST, voltage = (REFP+REFM)/2 (see Note 15)
1100b
Ch SELECT TEST, voltage = REFM (see Note 16)
1101b
Dh SELECT TEST, voltage = REFP (see Note 17)
1110b
Eh FIFO READ, FIFO contents is shown on SDO; (see Note 18)
1111b
Fh HARDWARE DEFAULT mode, CFR is loaded with 800h
NOTES: 15. The output code = mid-scale code + bipolar zero error
16. The output code = negative full-scale code + negative full-scale error
17. The output code = positive full-scale code + positive full-scale error
18. The TLC3574 and TLC3578, OD [15:2] is conversion result, OD [1:0] don’t care
The TLC2574 and TLC2578, OD [15:4] is conversion result, OD [3:0] don’t care
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