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| 型号： | ADS6224IRGZ25 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, VQFN-48 |
| 文件页数： | 60/73页 |
| 文件大小： | 3182K |
| 代理商： | ADS6224IRGZ25 |
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BOARD DESIGN CONSIDERATIONS
Grounding
Supply Decoupling
Exposed Thermal Pad
SLAS543A – MAY 2007 – REVISED SEPTEMBER 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 ADS622X 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 3.3 V 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.
It is necessary to solder the exposed pad at the bottom of the package to a ground plane for best thermal
performance. For detailed information, see application notes QFN Layout Guidelines (SLOA122A) and
QFN/SON PCB Attachment (SLUA271A).
Copyright 2007, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADS6224IRGZR | 功能描述:模数转换器 - ADC Dual 12b 105MSPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS6224IRGZRG4 | 功能描述:模数转换器 - ADC Dual 12B 105MSPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS6224IRGZT | 功能描述:模数转换器 - ADC Dual 12b 105MSPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS6224IRGZTG4 | 功能描述:模数转换器 - ADC Dual 12B 105MSPS ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADS6225 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL CHANNEL, 12-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS INTERFACE |
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