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| 型号： | AD9225ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 25MSPS 28-SOIC |
| 标准包装： | 27 |
| 位数： | 12 |
| 采样率（每秒）： | 25M |
| 数据接口： | 并联 |
| 转换器数目： | 7 |
| 功率耗散（最大）： | 373mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，双极；1 个差分，单极 |
| 产品目录页面： | 780 (CN2011-ZH PDF) |
AD9225
–21–
The digital activity on the AD9225 chip falls into two general
categories: correction logic and output drivers. The internal
correction logic draws relatively small surges of current, mainly
during the clock transitions. The output drivers draw large
current impulses while the output bits are changing. The size
and duration of these currents are a function of the load on the
output bits; large capacitive loads are to be avoided. Note that
the internal correction logic of the AD9225 is referenced to
AVDD while the output drivers are referenced to DRVDD.
The decoupling shown in Figure 34, a 0.1
mF ceramic chip
capacitor and a 10
mF tantalum capacitor, are appropriate for a
reasonable capacitive load on the digital outputs (typically
20 pF on each pin). Applications involving greater digital loads
should consider increasing the digital decoupling proportionally,
and/or using external buffers/latches.
0.1 F
DRVDD
DRVSS
AD9225
10 F
Figure 34. Digital Supply Decoupling
A complete decoupling scheme will also include large tantalum
or electrolytic capacitors on the PCB to reduce low frequency
ripple to negligible levels. Refer to the AD9225/AD9225EB
schematic and layouts in Figures 35 to 41 for more information
regarding the placement of decoupling capacitors.
Rev. C
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| AD9225ARZRL | 功能描述:IC ADC 12BIT 25MSPS 28SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD9225-EB | 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:DEV TOOLS, EVAL BD FOR AD9225 - Bulk |
| AD9226 | 制造商:AD 制造商全称:Analog Devices 功能描述:Complete 12-Bit, 65 MSPS ADC Converter |
| AD9226_01 | 制造商:AD 制造商全称:Analog Devices 功能描述:Complete 12-Bit, 65 MSPS ADC Converter |
| AD9226ARS | 功能描述:IC ADC 12BIT 65MSPS 28-SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
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