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參數(shù)資料
| 型號： | AMC7820-EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | AMC7820 Evaluation Module(AMC7820評估模塊) |
| 中文描述： | AMC7820評估模塊（AMC7820評估模塊） |
| 文件頁數(shù)： | 21/26頁 |
| 文件大?。?/td> | 297K |
| 代理商： | AMC7820-EVM |
Operation
3.4.2 D/A Converters
This screen allows you to control the D/A converters in the AMC7820. You may read and
write the D/A register values and specify or display these values in either hexadecimal
format or in volts, as shown in Figure 4.
Figure 4. D/A Converter Screen.
3.4.2.1 DAC0, DAC1, DAC2
These controls enable you to write a value to the D/A converters and read that value back.
To set a D/A converter
’
s output level, type the value into the box in the units you have
chosen in the Display Units
—
either Hex or Volts. The value is not written to the D/A
converter until you push the Write button.
Pressing the Read button will cause the program to read the D/A converter register and
display its value.
The checkbox in this section tells the program how you have configured the hardware
—
is the DACx_OUT_SET pin grounded If so, then the D/A converter
’
s output range is from
0V to 2V
REF
, whereas if it is not grounded, the range is 0V to V
REF
. These are the two
typical cases; if you have external circuitry that changes these nominal gains, the program
cannot take that into account for you directly.
3.4.2.2 VREF
This section of the D/A converter screen allows you to specify the reference voltage you
are using. Typically, this will be 2.5V from the internal reference of the AMC7820.
However, if you supply an external reference, your voltage may be different and you may
enter it here so that voltage calculations shown on this screen are correct.
3.4.2.3 Display Units
You may select whether to display the D/A converter values as hexadecimal numbers
(Hex) or voltage (Volts). If voltage is chosen, the voltage shown will be determined by the
value of the reference voltage specified in the VREF section, and the value of the
DACx_OUT_SET checkbox associated with each D/A converter. See the D/A converter
section for more information.
3-6
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMC7820Y | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ANALOG MONITORING AND CONTROL |
| AMC7820Y/250 | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Analog Monitoring & Control Circuitry RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| AMC7820Y/250G4 | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Analog Monitoring & Control Circuitry RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| AMC7820Y/2K | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Analog Monitoring & Control Circuitry RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| AMC7820Y/2KG4 | 功能描述:數(shù)據(jù)轉(zhuǎn)換系統(tǒng) Analog Monitoring & Control Circuitry RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率:0.001 MSPs 分辨率:24 bit 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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