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參數(shù)資料
| 型號(hào)： | AD7685ARMZRL7 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 17/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT PSEUDO-DIFF 10MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Power Line Monitoring Motor Control |
| 設(shè)計(jì)資源： | Parametric Measurement Unit and Supporting Components for PAD Appls Using AD5522 and AD7685 (CN0104) Integrated Device Power Supply for PAD with Output Voltage Range 0 V to 25 V (CN0130) |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | PulSAR® |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 250k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 15mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-MSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類(lèi)型： | 1 個(gè)偽差分，單極 |
| 配用： | EVAL-AD7685CBZ-ND - BOARD EVAL FOR AD7685 |
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AD7685
Rev. C | Page 24 of 28
APPLICATION HINTS
LAYOUT
The printed circuit board (PCB) that houses the AD7685
should be designed so that the analog and digital sections are
separated and confined to certain areas of the board. The
pinout of the AD7685 with all its analog signals on the left side
and all its digital signals on the right side eases this task.
Avoid running digital lines under the device because these
couple noise onto the die, unless a ground plane under the
AD7685 is used as a shield. Fast switching signals, such as CNV
or clocks, should never run near analog signal paths. Crossover
of digital and analog signals should be avoided
At least one ground plane should be used. It could be common
or split between the digital and analog section. In the latter case,
the planes should be joined underneath the AD7685.
The AD7685 voltage reference input REF has a dynamic input
impedance and should be decoupled with minimal parasitic
inductances. This is done by placing the reference decoupling
ceramic capacitor close to, and ideally right up against, the REF
and GND pins and connected with wide, low impedance traces.
Finally, the power supplies VDD and VIO should be decoupled
with ceramic capacitors, typically 100 nF, placed close to the
AD7685 and connected using short and wide traces to provide
low impedance paths and to reduce the effect of glitches on the
power supply lines.
An example layout following these rules is shown in Figure 46
and Figure 47.
EVALUATING THE PERFORMANCE OF THE AD7685
Other recommended layouts for the AD7690 are outlined in
the documentation of the evaluation board (EVAL-AD7685CB).
The evaluation board package includes a fully assembled and
tested evaluation board, documentation, and software for
controlling the board from a PC via the universal evaluation
control board (EVAL-CONTROL BRD3).
02
96
8-
04
4
Figure 46. Example of Layout of the AD7685 (Top Layer)
0
29
68
-04
5
Figure 47. Example of Layout of the AD7685 (Bottom Layer)
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|---|---|
| AD7685BCPZ-R2 | 制造商:Analog Devices 功能描述:16-BIT, 250 KSPS PULSAR ADC - Tape and Reel |
| AD7685BCPZRL | 功能描述:IC ADC 16BIT SAR 250KSPS 10LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7685BCPZRL7 | 功能描述:IC ADC 16BIT SAR 250KSPS 10LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:PulSAR® 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤(pán)（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類(lèi)型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱(chēng):296-25851-6 |
| AD7685BRM | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 16-bit Serial 10-Pin MSOP 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7685 MSOP10 |
| AD7685BRM-REEL | 制造商:Analog Devices 功能描述:- Tape and Reel |
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