參數(shù)資料
型號(hào)： THS1209IDAG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁(yè)數(shù)： 10/33頁(yè)
文件大小： 312K
代理商： THS1209IDAG4
THS1209
SLAS288B – JULY 2000 – REVISED DECEMBER 2002
www.ti.com
18
ADC CONTROL REGISTER
The THS1209 contains two 10-bit wide control registers (CR0, CR1) in order to program the device into the desired
mode. The bit definitions of both control registers are shown in Table 7.
Table 6. Bit Definitions of Control Register CR0 and CR1
REG
BIT 9
BIT 8
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
CR0
TEST1
TEST0
SCAN
DIFF1
DIFF0
CHSEL1
CHSEL0
PD
RES
VREF
CR1
RBACK
OFFSET
BIN/2’s
R/W
RES
SRST
RESET
Writing to Control Register 0 and Control Register 1
The 10-bit wide control register 0 and control register 1 can be programmed by addressing the desired control
register and writing the register value to the ADC. The addressing is performed with the upper data bits D10 and D11,
which function in this case as address lines RA0 and RA1. During this write process, the data bits D0 to D9 contain
the desired control register value. Table 8 shows the addressing of each control register.
Table 7. Control Register Addressing
D0 – D9
D10/RA0
D11/RA1
Addressed Control Register
Desired register value
0
Control register 0
Desired register value
1
0
Control register 1
Desired register value
0
1
Reserved for future
Desired register value
1
Reserved for future
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THS1215CDWRG4 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
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