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| 型號： | EVAL-AD7985EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD7985 |
| 標準包裝： | 1 |
| 系列： | PulSAR® |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 2.5M |
| 數(shù)據(jù)接口： | SPI?、QSPI?、MICROWIRE? 和 DSP |
| 輸入范圍： | 0 ~ 5 V |
| 在以下條件下的電源（標準）： | 15.5mW @ 2.5MSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7985 |
| 已供物品： | 板 |
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AD7985
Rev. A | Page 25 of 28
APPLICATIONS INFORMATION
LAYOUT
The printed circuit board (PCB) that houses the AD7985
should be designed so that the analog and digital sections
are separated and confined to certain areas of the board.
The pinout of the AD7985, with its analog signals on the left
side and its digital signals on the right side, eases this task.
Avoid running digital lines under the device because they
couple noise onto the die, unless a ground plane under the
AD7985 is used as a shield. Fast switching signals, such as
CNV or clocks, should not run near analog signal paths.
Crossover of digital and analog signals should be avoided.
At least one ground plane should be used. It can be common or
split between the digital and analog sections. In the latter case,
the planes should be joined underneath the AD7985 devices.
The AD7985 voltage reference inputs (REF) have a dynamic
input impedance and should be decoupled with minimal
parasitic inductances. This is done by placing the reference
decoupling ceramic capacitor close to, ideally right up against,
the REF and REFGND pins and connecting them with wide,
low impedance traces.
Finally, the power supplies, VDD and VIO of the AD7985,
should be decoupled with ceramic capacitors, typically 100 nF,
placed close to the AD7985 and connected using short, wide
traces to provide low impedance paths and to reduce the effect
of glitches on the power supply lines.
EVALUATING AD7985 PERFORMANCE
Other recommended layouts for the AD7985 are outlined
in the documentation for the AD7985 evaluation board
(EVAL-AD7985EBZ). The evaluation board package includes
a fully assembled and tested evaluation board, documentation,
and software for controlling the board from a PC via the
EVAL-CED1Z board.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7986EBZ | 功能描述:BOARD EVAL FOR AD7986 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7988-5SDZ | 功能描述:BAORD EVAL FOR AD7988-5 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7991EBZ | 功能描述:BOARD EVAL FOR AD7991 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7991EBZ | 制造商:Analog Devices 功能描述:AD7991, ADC, I2C, EVALUATION BOARD |
| EVAL-AD7992CB | 制造商:AD 制造商全稱:Analog Devices 功能描述:2-Channel, 12-Bit ADC with I2C-Compatible |
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