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参数资料
| 型号： | TLC2543QDWRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封装： | PLASTIC, SOIC-20 |
| 文件页数： | 3/25页 |
| 文件大小： | 413K |
| 代理商： | TLC2543QDWRQ1 |
TLC2543Q1
12BIT ANALOGTODIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SGLS218D NOVEMBER 2003 REVISED MAY 2008
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
A/D Conversion
Interval
Initialize
MSB
LSB
MSB
LSB
B7
B6
B5
B4
C7
B15
A15
A14
A13
A12
A11
A10
A9
A8
A1
A0
1
2
3
4
5
6
7
8
15
16
1
I/O
CLOCK
DATA
OUT
DATA
INPUT
CS
EOC
Initialize
Hi-Z State
(see Note A)
B3
B2
B1
B0
Access Cycle B
Sample Cycle B
Previous Conversion Data
t(conv)
Shift in New Multiplexer Address,
Simultaneously Shift Out Previous
Conversion Value
NOTE A: To minimize errors caused by noise at CS, the internal circuitry waits for a setup time after CS
↓ before responding to control input signals.
Therefore, no attempt should be made to clock in an address until the minimum CS setup time has elapsed.
Figure 13. Timing for 16-Clock Transfer Using CS With MSB First
A/D Conversion
Interval
Initialize
MSB
LSB
MSB
LSB
B7
B6
B5
B4
C7
B15
A15
A14
A13
A12
A11
A10
A9
A8
A1
A0
1
2
3
4
5
6
7
8
15
16
1
I/O
CLOCK
DATA
OUT
DATA
INPUT
CS
EOC
Low Level
(see Note A)
B3
B2
B1
B0
Sample Cycle B
Access Cycle B
Previous Conversion Data
t(conv)
Shift in New Multiplexer Address,
Simultaneously Shift Out Previous
Conversion Value
NOTE A: To minimize errors caused by noise at CS, the internal circuitry waits for a setup time after CS
↓ before responding to control input signals.
Therefore, no attempt should be made to clock in an address until the minimum CS setup time has elapsed.
Figure 14. Timing for 16-Clock Transfer Not Using CS With MSB First
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