參數(shù)資料
型號: THS1031TSSOP
廠商: Texas Instruments, Inc.
英文描述: 2.7 V . 5.5 V, 10-BIT, 30 MSPS CMOS ANALOG-TO-DIGITAL CONVERTER
中文描述: 2.7伏。 5.5五,10位,30 MSPS的CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù): 17/26頁
文件大?。?/td> 358K
代理商: THS1031TSSOP
THS1031
2.7 V – 5.5 V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS242A – NOVEMBER 1999 – REVISED JANUARY 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
analog input mode(continued)
SHA
A/D
PGA
SW3
REFBF
REFTF
MODE
REFBS
REFTS
10
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
AIN
REFTF
REFBF
REFT
0.1
μ
F
REFB
0.1
μ
F
THS1031
Figure 16. Kelvin Connection With External ADC Reference Mode
Internal ADC Reference Mode With External Input Common Mode
: The input common mode is supplied
to pins REFTS and REFBS while connected together. The input signal should be centered around this
common mode with peak-to-peak input equal to the voltage on the V
REF
pin. Input can be either dc-coupled
or ac-coupled to the same common mode voltage (Figure 17) or any other voltage within the input voltage
range.
SHA
A/D
PGA
REFBF
REFTF
MODE
REFBS
REFTS
10
μ
F
0.1
μ
F
1.5 V
AIN
2 V
1 V
THS1031
AVDD
0.1
μ
F
ADC
REF
_
+
+
1 V
REFSENSE
VREF
0.1
μ
F
Figure 17. External Input Common Mode
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THS1031SOIC 2.7 V . 5.5 V, 10-BIT, 30 MSPS CMOS ANALOG-TO-DIGITAL CONVERTER
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