參數(shù)資料
型號: ADS8382IBRHPT
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC28
封裝: 6 X 6 MM, GREEN, PLASTIC, QFN-28
文件頁數(shù): 19/35頁
文件大小: 1416K
代理商: ADS8382IBRHPT
www.ti.com
ADS8382
SLAS416B – JUNE 2004 – REVISED NOVEMBER 2004
LAYOUT (continued)
As with the AGND connections, +VA should be connected to a +5-V power-supply plane or trace that is separate
from the connection for digital logic until they are connected at the power entry point. Power to the ADS8382
should be clean and well bypassed. A 0.1-
F ceramic bypass capacitor should be placed as close to the device
as possible. See Table 3 for the placement of these capacitors. In addition, a 1-
F capacitor is recommended. In
some situations, additional bypassing may be required, such as a 100-
F electrolytic capacitor or even a Pi filter
made up of inductors and capacitors—all designed to essentially low-pass filter the +5-V supply, removing the
high frequency noise.
Table 3. Power Supply Decoupling Capacitor Placement
SUPPLY PINS
CONVERTER ANALOG SIDE
CONVERTER DIGITAL SIDE
Pair of pins requiring a shortest
(2,3); (5,6); (15,16); (17,18)
(20,21)
path to decoupling capacitors
Pins requiring no decoupling
1, 4, 14, 19
When using the internal reference, ensure a shortest path from REFOUT (pin 9) to REFIN (pin 8) with the bypass
capacitor directly between pins 8 and 7.
26
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ADS8382IRHPR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS 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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ADS8382IRHPT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-Bit 600KSPS 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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