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參數(shù)資料
| 型號： | ADS7818PG4 |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 12BIT 500KHZ ADC CONV 8-DIP |
| 產(chǎn)品培訓模塊： | Data Converter Basics |
| 標準包裝： | 50 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 20mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
| 配用： | 296-19913-ND - EVAL MOD FOR ADS7818 |
13
ADS7818
With this in mind, power to the ADS7818 should be clean
and well bypassed. A 0.1
F ceramic bypass capacitor should
be placed as close to the device as possible. In addition, a
1
F to 10F capacitor is recommended. If needed, an even
larger capacitor and a 5
or 10 series resistor my be used
to lowpass filter a noisy supply.
The ADS7818 draws very little current from an external
reference on average as the reference voltage is internally
buffered. However, glitches from the conversion process
appear at the VREF input and the reference source must be
able to handle this. Whether the reference is internal or
external, the VREF pin should be bypassed with a 0.1F
capacitor. An additional larger capacitor may also be used,
if desired. If the reference voltage is external and originates
from an op-amp, make sure that it can drive the bypass
capacitor or capacitors without oscillation.
The GND pin should be connected to a clean ground point.
In many cases, this will be the “analog” ground. Avoid
connections which are too near the grounding point of a
microcontroller or digital signal processor. If needed, run a
ground trace directly from the converter to the power supply
entry point. The ideal layout will include an analog ground
plane dedicated to the converter and associated analog
circuitry.
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| ADS7819 | 制造商:BB 制造商全稱:BB 功能描述:12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| ADS7819 WAF | 制造商:Texas Instruments 功能描述: |
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| ADS7819U | 制造商:Texas Instruments 功能描述: |
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