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| 型号： | AD7352BRUZ-500RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/21页 |
| 文件大小： | 0K |
| 描述： | IC ADC DUAL 12BIT 3MSPS 16TSSOP |
| 设计资源： | DC-Coupled, Single-Ended-to-Differential Conversion Using AD8138 and AD7352 (CN0040) |
| 标准包装： | 500 |
| 位数： | 12 |
| 采样率（每秒）： | 3M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 45mW |
| 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： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 2 个差分，双极 |
AD7352
Rev. A | Page 19 of 20
APPLICATION HINTS
GROUNDING AND LAYOUT
The analog and digital supplies to the AD7352 are independent
and separately pinned out to minimize coupling between the
analog and digital sections of the device. The printed circuit
board (PCB) that houses the AD7352 should be designed so
that the analog and digital sections are separated and confined
to certain areas of the board. This design facilitates the use of
ground planes that can be easily separated.
To provide optimum shielding for ground planes, a minimum
etch technique is generally best. The two AGND pins of the
AD7352 should be sunk in the AGND plane. The REFGND
pin should also be sunk in the AGND plane. Digital and analog
ground planes should be joined in only one place. If the
AD7352 is in a system in which multiple devices require an
AGND and DGND connection, the connection should still
be made at one point only, a star ground point should be
established as close as possible to the ground pins on the
AD7352.
Avoid running digital lines under the device because this couples
noise onto the die. Allow the analog ground planes to run under
the AD7352 to avoid noise coupling. The power supply lines to
the AD7352 should use as large a trace as possible to provide
low impedance paths and reduce the effects of glitches on the
power supply line.
To avoid radiating noise to other sections of the board, shield
fast switching signals such as clocks, with digital ground, and
never run clock signals near the analog inputs. Avoid crossover
of digital and analog signals. To reduce the effects of
feedthrough within the board, traces on opposite sides of the
board should run at right angles to each other. A microstrip
technique is the best method but is not always possible with a
double-sided board. In this technique, the component side of
the board is dedicated to ground planes and signals are placed
on the solder side.
Good decoupling is important; decouple all supplies with 10 μF
tantalum capacitors in parallel with 0.1 μF capacitors to GND.
To achieve the best results from these decoupling components,
they must be placed as close as possible to the device, ideally
right up against the device. The 0.1 μF capacitor, (including the
common ceramic types or surface-mount types) should have
low effective series resistance (ESR) and effective series
inductance (ESI). These low ESR and ESI capacitors provide a
low impedance path to ground at high frequencies to handle
transient currents due to logic switching.
EVALUATING THE AD7352 PERFORMANCE
The recommended layout for the AD7352 is outlined in the
evaluation board documentation. The evaluation board package
includes a fully assembled and tested evaluation board, documen-
tation, and software for controlling the board from the PC via
the converter evaluation and development board (CED). The
CED can be used in conjunction with the AD7352 evaluation
board (as well as many other Analog Devices, Inc., evaluation
boards ending in the ED designator) to demonstrate/evaluate
the ac and dc performance of the AD7352.
The software allows the user to perform ac (fast Fourier transform)
and dc (linearity) tests on the AD7352. The software and docu-
mentation are on a CD shipped with the evaluation board.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7352BRUZ-RL | 功能描述:IC ADC DUAL 12BIT 3MSPS 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°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:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7352YRUZ | 功能描述:IC ADC DUAL 12BIT 3MSPS 16TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7352YRUZ-500RL7 | 功能描述:IC ADC DUAL 12BIT 3MSPS 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°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:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7352YRUZ-RL | 功能描述:IC ADC DUAL 12BIT 3MSPS 16TSSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°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:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7356 | 制造商:AD 制造商全称:Analog Devices 功能描述:Differential Input,Dual,Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC |
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