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参数资料
| 型号： | AD9284BCPZ-250 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT 250MSPS 1.8V 48LFCSP |
| 标准包装： | 1 |
| 位数： | 8 |
| 采样率（每秒）： | 250M |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 330mW |
| 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-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 48-LFCSP-VQ（7x7） |
| 包装： | 托盘 |
| 输入数目和类型： | 2 个差分，双极 |
| 配用： | AD9284-250EBZ-ND - BOARD EVAL FOR AD9284 |
Data Sheet
AD9284
Rev. A | Page 15 of 24
BUILT-IN SELF-TEST (BIST) AND OUTPUT TEST
The AD9284 includes a built-in self-test feature that is designed
to enable verification of the integrity of each channel, as well as
facilitate board level debugging. A built-in self-test (BIST) feature
that verifies the integrity of the digital datapath of the AD9284
is included. Various output test options are also provided to
place predictable values on the outputs of the AD9284.
BUILT-IN SELF-TEST (BIST)
The BIST is a thorough test of the digital portion of the selected
AD9284 signal path. Perform the BIST test after a reset to ensure
that the part is in a known state. During BIST, data from an
internal pseudorandom noise (PN) source is driven through
the digital datapath of both channels, starting at the ADC block
output. At the datapath output, CRC logic calculates a signature
from the data. The BIST sequence runs for 512 cycles and then
stops. When the test is completed, the BIST compares the signature
results with a predetermined value. If the signatures match, the
BIST sets Bit 0 of Register 0x0E, signifying that the test passed.
If the BIST test fails, Bit 0 of Register 0x0E is cleared. The outputs
are connected during this test, so the PN sequence can be observed
as it runs.
Writing a value of 0x05 to Register 0x0E runs the BIST. This
enables Bit 0 (BIST enable) of Register 0x0E and resets the PN
sequence generator, Bit 2 (BIST init) of Register 0x0E. At the
completion of the BIST, Bit 0 of Register 0x0E is automatically
cleared. The PN sequence can be continued from its last value
by writing a 0 to Bit 2 of Register 0x0E. However, if the PN
sequence is not reset, the signature calculation does not equal
the predetermined value at the end of the test. At that point, the
user must rely on verifying the output data.
OUTPUT TEST MODES
The output test options are described in Table 12 at Address 0x0D.
When an output test mode is enabled, the analog section of the
ADC is disconnected from the digital back-end blocks, and the
test pattern is run through the output formatting block. Some
test patterns are subject to output formatting, and some are not.
The PN generators from the PN sequence tests can be reset by
setting Bit 4 or Bit 5 of Register 0x0D. These tests can be performed
with or without an analog signal (if present, the analog signal
is ignored), but they do require an encode clock. For more
information, see the AN-877 Application Note, Interfacing to
High Speed ADCs via SPI.
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相关代理商/技术参数 |
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| AD9284BCPZRL7-250 | 功能描述:IC ADC 8BIT 250MSPS 1.8V 48LFCSP 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 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD9286 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter (ADC) |
| AD9286-500EBZ | 功能描述:BOARD EVAL FOR AD9286-500 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 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 |
| AD9286BCPZ-500 | 功能描述:IC ADC 8BIT SPI/SRL 500M 48LFSCP 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 |
| AD9286BCPZRL7-500 | 功能描述:IC ADC 8BIT SPI/SRL 500M 48LFCSP 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 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
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