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参数资料
| 型号： | EVAL-AD7476ACBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/29页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7476A |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 1M |
| 数据接口： | 串行 |
| 输入范围： | 0 ~ 5.25 V |
| 在以下条件下的电源（标准）： | 17.5mW @ 1MSPS，5 V |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7476A |
| 已供物品： | 板，CD |
| 相关产品： | AD7476ARTZ-500RL7DKR-ND - IC ADC 12BIT 1MSPS SOT-23-6 AD7476ABKSZREELDKR-ND - IC ADC 12BIT 1MSPS SC70-6 AD7476BRTZ-R2TR-ND - IC ADC 12BIT 1MSPS SOT23-6 AD7476ARTZ-REEL7-ND - IC ADC 12BIT 1MSPS LP SOT23-6 AD7476ABKSZ-500RL7-ND - IC ADC 12BIT 1MSPS LP SC70-6 AD7476AAKSZ-REEL7-ND - IC ADC 12BIT 1MSPS LP SC70-6 AD7476AAKSZ-500RL7TR-ND - IC ADC 12BIT 1MSPS LP SC70-6 AD7476AYRMZ-REEL7-ND - IC ADC 12BIT 1MSPS LP 8MSOP AD7476AAKSZ-REEL-ND - IC ADC 12BIT 1MSPS LP SC70-6 AD7476ARTZ-500RL7CT-ND - IC ADC 12BIT 1MSPS SOT-23-6 更多... |
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AD7476A/AD7477A/AD7478A
Rev. F | Page 19 of 28
SDATA
SCLK
CS
1
10
12
14
16
AD7476A/AD7477A/AD7478A
02930-020
VALID DATA
Figure 20. Normal Mode Operation
THREE-STATE
SDATA
SCLK
CS
1
10
12
14
16
2
02930-021
Figure 21. Entering Power-Down Mode
INVALID DATA
SDATA
SCLK
CS
1
10
12
14
16
A
1
16
VALID DATA
THE PART IS FULLY
POWERED UP WITH
VIN FULLY ACQUIRED
THE PART
BEGINS TO
POWER UP
02930-022
Figure 22. Exiting Power-Down Mode
When power supplies are first applied to the AD7476A/AD7477A/
AD7478A, the ADC can power up in either the power-down or
normal modes. Because of this, it is best to allow a dummy cycle
to elapse to ensure that the part is fully powered up before
attempting a valid conversion. Likewise, if it is intended to keep
the part in the power-down mode while not in use and the user
wishes the part to power up in power-down mode, the dummy
cycle can be used to ensure that the device is in power-down by
executing a cycle such as that shown in Figure 22. Once supplies
are applied to the AD7476A/AD7477A/AD7478A, the power-up
time is the same as that when powering up from the power-down
mode. It takes approximately 1 μs to power up fully if the part
powers up in normal mode. It is not necessary to wait 1 μs before
executing a dummy cycle to ensure the desired mode of operation.
Instead, a dummy cycle can occur directly after power is
supplied to the ADC. If the first valid conversion is performed
directly after the dummy conversion, care must be taken to
ensure that an adequate acquisition time has been allowed. As
mentioned earlier, when powering up from the power-down
mode, the part returns to track upon the first SCLK edge
applied after the falling edge of CS. However, when the ADC
initially powers up after supplies are applied, the track-and-hold
is already in track. This means, assuming one has the facility to
monitor the ADC supply current, if the ADC powers up in the
desired mode of operation and thus a dummy cycle is not
required to change the mode, a dummy cycle is not required to
place the track-and-hold into track.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7476CB | 制造商:Analog Devices 功能描述:Evaluation Board For AD7476 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD7476CBZ | 功能描述:BOARD EVAL FOR AD7476 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 |
| EVAL-AD7477ACB | 制造商:Analog Devices 功能描述:EVAL BD FOR AD7477A 12-/10-/8BIT ADCS IN 6-LEAD SC70 - Bulk |
| EVAL-AD7477ACB4 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.35 V to 5.25 V, 1 MSPS, 12-/10-/8-Bit ADCs in 6-Lead SC70 |
| EVAL-AD7477CB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
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