- 您现在的位置：买卖IC网 > PDF目录17036 > EVAL-AD7400EDZ (Analog Devices Inc)BOARD EVAL AD7400 PDF资料下载
参数资料
| 型号： | EVAL-AD7400EDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL AD7400 |
| 标准包装： | 1 |
| 系列： | iCoupler® |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 10M |
| 数据接口： | 串行 |
| 输入范围： | ±320 mV |
| 在以下条件下的电源（标准）： | 90mW @ 10MSPS |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7400 |
| 已供物品： | 板 |
Data Sheet
AD7400
Rev. G | Page 17 of 20
APPLICATIONS INFORMATION
GROUNDING AND LAYOUT
Supply decoupling with a value of 100 nF is strongly recom-
mended on both VDD1 and VDD2. Decoupling on one or both
VDD1 pins does not significantly affect performance. In
applications involving high common-mode transients, care
should be taken to ensure that board coupling across the
isolation barrier is minimized. Furthermore, the board layout
should be designed so that any coupling that occurs equally
affects all pins on a given component side. Failure to ensure this
may cause voltage differentials between pins to exceed the
absolute maximum ratings of the device, thereby leading to
latch-up or permanent damage. Any decoupling used should be
placed as close to the supply pins as possible.
Series resistance in the analog inputs should be minimized to
avoid any distortion effects, especially at high temperatures. If
possible, equalize the source impedance on each analog input to
minimize offset. Beware of mismatch and thermocouple effects
on the analog input PCB tracks to reduce offset drift.
EVALUATING THE AD7400 PERFORMANCE
A simple standalone AD7400 evaluation board is available with
split ground planes and a board split beneath the AD7400
package to ensure isolation. This board allows access to each
pin on the device for evaluation purposes. External supplies and
all other circuitry (such as a digital filter) must be provided by
the user.
INSULATION LIFETIME
All insulation structures, subjected to sufficient time and/or
voltage, are vulnerable to breakdown. In addition to the testing
performed by the regulatory agencies, Analog Devices has
carried out an extensive set of evaluations to determine the
lifetime of the insulation structure within the AD7400.
These tests subjected populations of devices to continuous
cross-isolation voltages. To accelerate the occurrence of failures,
the selected test voltages were values exceeding those of normal
use. The time-to-failure values of these units were recorded and
used to calculate acceleration factors. These factors were then
used to calculate the time to failure under normal operating
conditions. The values shown in Table 7 are the lesser of the
following two values:
The value that ensures at least a 50-year lifetime of
continuous use
The maximum CSA/VDE approved working voltage
It should also be noted that the lifetime of the AD7400 varies
according to the waveform type imposed across the isolation
barrier. The iCoupler insulation structure is stressed differently
depending on whether the waveform is bipolar ac, unipolar ac,
or dc. Figure 29, Figure 30, and Figure 31 illustrate the different
isolation voltage waveforms.
0V
RATED PEAK VOLTAGE
04718-
029
Figure 29. Bipolar AC Waveform
0V
RATED PEAK VOLTAGE
04718-
030
Figure 30. Unipolar AC Waveform
0V
RATED PEAK VOLTAGE
04718-
031
Figure 31. DC Waveform
相关PDF资料 |
PDF描述 |
|---|---|
| VI-21N-EY | CONVERTER MOD DC/DC 18.5V 50W |
| EVAL-AD7400AEDZ | BOARD EVAL AD7400A |
| EBC20DREN-S734 | CONN EDGECARD 40POS .100 EYELET |
| EVAL-AD7262EDZ | BOARD EVAL CONTROL AD7262 |
| VE-212-EY | CONVERTER MOD DC/DC 15V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7401AEDZ | 功能描述:BOARD EVAL FOR AD7401 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:iCoupler® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7401EB | 制造商:AD 制造商全称:Analog Devices 功能描述:Isolated Sigma-Delta Modulator |
| EVAL-AD7401EDZ | 功能描述:BOARD EVALUATION FOR AD7401 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:iCoupler® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD74111EBZ | 功能描述:BOARD EVAL FOR AD74111 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-AD74122EB-U1 | 制造商:Analog Devices 功能描述:- Bulk |
发布紧急采购，3分钟左右您将得到回复。