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参数资料
| 型号： | AD7866BRUZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 2CHAN DUAL 20TSSOP |
| 标准包装： | 1,000 |
| 位数： | 12 |
| 采样率（每秒）： | 1M |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 24mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，单极 |
| 配用： | EVAL-AD7866CBZ-ND - BOARD EVALUATION AD7866 |
REV. A
AD7866
–17–
CS
1
16
10
2
THREE-STATE
SCLK
DOUTA
DOUTB
Figure 17. Entering Partial Power-Down Mode
1
16
10
116
INVALID DATA
VALID DATA
CS
SCLK
DOUTA
DOUTB
THE PART BEGINS
TO POWER UP
THE PART MAY BE FULLY
POWERED UP; SEE POWER-UP
TIMES SECTION
A
Figure 18. Exiting Partial Power-Down Mode
116
10
116
INVALID DATA
THREE-STATE
2
10
CS
SCLK
DOUTA
DOUTB
THE PART ENTERS
PARTIAL POWER-DOWN
THE PART BEGINS
TO POWER UP
THE PART ENTERS
FULL POWER-DOWN
Figure 19. Entering Full Power-Down Mode
1
16
10
116
INVALID DATA
VALID DATA
CS
SCLK
DOUTA
DOUTB
THE PART BEGINS
TO POWER UP
THE PART IS
FULLY POWERED UP
tPOWER UP
Figure 20. Exiting Full Power-Down Mode
Then, to place the AD7866 in normal mode, a dummy cycle
(1
s to 4 s approximately) should be initiated. If the first valid
conversion is performed directly after the dummy conversion,
care must be taken to ensure that adequate acquisition time has
been allowed. As mentioned earlier, when powering up from the
power-down mode, the part will return 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 will already be in track. This means that (assuming
one has the facility to monitor the ADC supply current and thus
determine which mode the AD7866 is in) if the ADC powers up
in the desired mode of operation and thus a dummy cycle is not
required to change mode, then neither is a dummy cycle required
to place the track-and-hold into track. If no current monitoring
facility is available, the relevant dummy cycle(s) should be
performed to ensure the part is in the required mode.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7868 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS Complete, 12-Bit Analog I/O System |
| AD7868AN | 功能描述:IC I/O PORT 12BIT ANLG 24-DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
| AD7868ANZ | 功能描述:IC I/O PORT 12BIT ANLG 24-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
| AD7868AQ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD7868AR | 功能描述:IC I/O PORT 12BIT ANLG 28-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
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