參數(shù)資料
型號： ADS6242IRGZTG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PQCC48
封裝： 7 X 7 MM, GREEN, PLASTIC, QFN-48
文件頁數(shù)： 60/76頁
文件大小： 3497K
代理商： ADS6242IRGZTG4
www.ti.com
BOARD DESIGN CONSIDERATIONS
Grounding
Supply Decoupling
Exposed Thermal Pad
SLAS542A – MAY 2007 – REVISED JULY 2007
A single ground plane is sufficient to give optimum performance, provided the analog, digital and clock sections
of the board are cleanly partitioned. Refer to the EVM User Guide (SLAU196) for more layout details.
As the ADS624X already includes internal decoupling, minimal external decoupling can be used without loss in
performance. Note that the decoupling capacitors can help to filter external power supply noise, so the optimum
number of decoupling capacitors would depend on actual application.
It is recommended to use separate supplies for the analog and digital supply pins to isolate digital switching
noise from sensitive analog circuitry. In case only a single 3.3V supply is available, it should be routed first to
AVDD. It can then be tapped and isolated with a ferrite bead (or inductor) with decoupling capacitor, before being
routed to LVDD.
For best thermal performance, it is necessary to solder the exposed pad at the bottom of the package to a
ground plane using multiple vias. For detailed information, see application notes QFN Layout Guidelines
(SLOA122A) and QFN/SON PCB Attachment (SLUA271A).
Copyright 2007, Texas Instruments Incorporated
63
Product Folder Link(s): ADS6245 ADS6244 ADS6243 ADS6242
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相關代理商/技術參數(shù)
參數(shù)描述
ADS6243 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL CHANNEL, 14-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS OUTPUTS
ADS6243EVM 功能描述:數(shù)據(jù)轉換 IC 開發(fā)工具 ADS6243 Evaluation Module RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS6243IRGZ25 功能描述:模數(shù)轉換器 - ADC Dual 14B 80MSPS ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6243IRGZR 功能描述:模數(shù)轉換器 - ADC Dual 14B 80MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS6243IRGZRG4 功能描述:模數(shù)轉換器 - ADC Dual 14B 80MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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