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TLV2541 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
TLV2541 2.7-V TO 5.5-V, LOW-POWER, 12-BIT, 140/200 KSPS, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN Texas-Instruments
Texas Instruments Texas-Instruments
TLV2541 Datasheet PDF : 32 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TLV2541, TLV2542, TLV2545
2.7-V TO 5.5-V, LOW-POWER, 12-BIT, 140/200 KSPS,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN
SLAS245E MARCH 2000 REVISED APRIL 2010
timing diagrams/conversion cycles (continued)
123456
12 13 14 15 16
1
SCLK
CS
FS
SDO
t(sample)
tc
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ OD11
OD10 OD9 OD8 OD7 OD6
OD0
t(powerdown)
Figure 3. TLV2541 Timing: Control via CS and FS or FS Only
SCLK
12345
1 4 12
16
1 4 12
16
CS
SDO
SCLK
CS
<8 SCLKs, MUX
Resets to AIN0
ÎÎÎÎÎÎÎÎÎÎÎÎ t(sÎÎampleÎÎ) ÎÎÎÎÎÎÎÎÎÎ tc
Figure 4. TLV2542 Reset Timing
1234567
12 13 14 15 16
>8 SCLKs, MUX Toggles to AIN1
t(powerdown)
AIN0 Result
OD11
t(sample)
tc
ÎÎÎÎÎÎ OD0
1
SDO
OD11 OD10 OD9
OD8
OD7
OD6
OD5
t(sample)
ÎÎÎÎÎÎÎÎÎÎÎÎ OD0
tc
t(powerdown)
OD11 OD10 OD9
Figure 5. TLV2542 and TLV2545 Timing
using CS as the FS input
When interfacing the TLV2541 with the TMS320 DSP, the FSR signal from the DSP may be connected to the
CS input if this is the only device on the serial port. This saves one output terminal from the DSP. (Output data
changes on the falling edge of SCLK. This is the default configuration for the TLV2542 and TLV2545.)
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 772511443
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