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参数资料
| 型号： | AD7686BRMZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 500KSPS 10-MSOP |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| 位数： | 16 |
| 采样率（每秒）： | 500k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 21.5mW |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个伪差分，单极 |
| 产品目录页面： | 778 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7686CBZ-ND - BOARD EVALUATION FOR AD7686 |
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AD7686
Rev. B | Page 17 of 28
CS MODE 3-WIRE, NO BUSY INDICATOR
This mode is most often used when a single AD7686 is
connected to an SPI-compatible digital host. The connection
diagram is shown in Figure 33, and the corresponding timing is
provided in Figure 34.
With SDI tied to VIO, a rising edge on CNV initiates a
conversion, selects the CS mode, and forces SDO to high
impedance. Once a conversion is initiated, it continues to
completion irrespective of the state of CNV. For instance, it
could be useful to bring CNV low to select other SPI devices,
such as analog multiplexers. However, CNV must be returned
high before the minimum conversion time and held high until
the maximum conversion time to avoid generating the busy
signal indicator. When the conversion is complete, the AD7686
enters the acquisition phase and powers down. When CNV
goes low, the MSB is output onto SDO. The remaining data bits
are then clocked by subsequent SCK falling edges.
The data is valid on both SCK edges. Although the rising edge
can be used to capture the data, a digital host using the SCK
falling edge allows a faster reading rate provided it has an
acceptable hold time. After the 16th SCK falling edge, or when
CNV goes high, whichever occurs first, SDO returns to high
impedance.
CNV
SCK
SDO
SDI
DATA IN
CLK
CONVERT
VIO
DIGITAL HOST
AD7686
02
969
-03
4
Figure 33. CS Mode 3-Wire, No Busy Indicator
Connection Diagram (SDI High)
SDO
D15
D14
D13
D1
D0
tDIS
SCK
12
3
14
15
16
tSCK
tSCKL
tSCKH
tHSDO
tDSDO
CNV
CONVERSION
ACQUISITION
tCONV
tCYC
ACQUISITION
SDI = 1
tCNVH
tACQ
tEN
0
296
9-
035
Figure 34. CS Mode 3-Wire, No Busy Indicator Serial Interface Timing (SDI High)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7686BRMZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN |
| AD7686BRMZRL7 | 功能描述:IC ADC 16BIT 500KSPS 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7686BRMZRL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN |
| AD7686CB2 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN |
| AD7686CBZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN |
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