參數資料
型號: TLC2543C
廠商: Texas Instruments, Inc.
英文描述: 12-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS
中文描述: 12位模擬數字轉換器與串行控制和11個模擬輸入
文件頁數: 14/27頁
文件大?。?/td> 431K
代理商: TLC2543C
TLC2543C, TLC2543I, TLC2543M
12-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SLAS079D – DECEMBER 1993 – REVISED MAY 1997
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
data input
The data input is internally connected to an 8-bit serial-input address and control register. The register defines
the operation of the converter and the output data length. The host provides the data word with the MSB first.
Each data bit is clocked in on the rising edge of the I/O CLOCK sequence (see Table 2 for the data input-register
format).
Table 2. Input-Register Format
INPUT DATA BYTE
FUNCTION SELECT
ADDRESS BITS
D6
L1
D3
L0
D2
LSBF
D1
BIP
D0
(LSB)
D7
(MSB)
D5
D4
Select input channel
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN10
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
Select test voltage
(Vref+ – Vref–)/2
Vref–
Vref+
Software power down
1
1
1
0
1
1
1
0
0
1
0
1
1
1
1
0
Output data length
8 bits
12 bits
16 bits
0
X
1
1
0
1
Output data format
MSB first
LSB first (LSBF)
0
1
Unipolar (binary)
0
Bipolar (BIP) 2s complement
X represents a do not care condition.
1
data input address bits
The four MSBs (D7 – D4) of the data register address one of the 11 input channels, a reference-test voltage,
or the power-down mode. The address bits affect the current conversion, which is the conversion that
immediately follows the current I/O cycle. The reference voltage is nominally equal to V
ref+
– V
ref–
.
相關PDF資料
PDF描述
TLC2543I 12-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS
TLC2543MFK 12-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS
TLC2558CPW BUTT SPLICE,NON-INS. RoHS Compliant: Yes
TLC2554CPW 5-V, 12-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
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