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參數(shù)資料
| 型號(hào)： | ADS7818E/250G4 |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 5/21頁 |
| 文件大小： | 0K |
| 描述： | IC 12BIT 500KHZ ADC CONV 8-MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Basics |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 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： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個(gè)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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7818E2K5 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7818E2K5G4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7818EB | 制造商:BB 制造商全稱:BB 功能描述:2SC5161 |
| ADS7818EB/250 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS7818EB/250G4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit High Speed Low Power Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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