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參數(shù)資料
| 型號： | EVAL-AD7693CBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/24頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7693 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | PulSAR® |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | ±VREF |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 18mW @ 500kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7693 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD7693BRMZRL7-ND - IC ADC 16BIT 500KSPS 10-MSOP AD7693BCPZRL7TR-ND - IC ADC 16BIT 500KSPS 10-LFCSP AD7693BRMZ-ND - IC ADC 16BIT 500KSPS 10-MSOP AD7693BCPZRL-ND - IC ADC 16BIT 500KSPS 10LFCSP |
AD7693
Rev. A | Page 18 of 24
CS MODE, 3-WIRE WITH BUSY INDICATOR
This mode is usually used when a single AD7693 is connected
to an SPI-compatible digital host having an interrupt input.
The connection diagram is shown in Figure 36, and the
corresponding timing is given in Figure 37.
With SDI tied to VIO, a rising edge on CNV initiates a
conversion, selects the CS mode, and forces SDO to high
impedance. SDO is maintained in high impedance until the
completion of the conversion irrespective of the state of CNV.
Prior to the minimum conversion time, CNV can be used to
select other SPI devices, such as analog multiplexers, but CNV
must be returned low before the minimum conversion time
elapses and then held low for the maximum possible conversion
time to guarantee the generation of the busy signal indicator.
When the conversion is complete, SDO goes from high
impedance to low impedance. With a pull-up on the SDO line,
this transition can be used as an interrupt signal to initiate the
data reading controlled by the digital host. The AD7693 then
enters the acquisition phase and powers down. The data bits are
clocked out, MSB first, 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 will allow a faster reading rate, provided it has an
acceptable hold time. After the optional 17th SCK falling edge or
when CNV goes high (whichever occurs first), SDO returns to
high impedance.
If multiple AD7693s are selected at the same time, the SDO
output pin handles this contention without damage or induced
latch-up. Meanwhile, it is recommended to keep this contention
as short as possible to limit extra power dissipation.
DATA IN
IRQ
CLK
CONVERT
VIO
CNV
SCK
SDO
SDI
VIO
AD7693
0
6
394
-03
5
DIGITAL HOST
Figure 36. CS Mode, 3-Wire with Busy Indicator
Connection Diagram (SDI High)
SDO
D15
D14
D1
D0
tDIS
SCK
12
3
15
16
17
tSCK
tSCKL
tSCKH
tHSDO
tDSDO
CNV
CONVERSION
ACQUISITION
tCONV
tCYC
ACQUISITION
SDI = 1
tCNVH
tACQ
0
63
94
-03
6
Figure 37. CS Mode, 3-Wire with Busy Indicator Serial Interface Timing (SDI High)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7693SDZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 EVAL BOARD 16-bit ADC 500kSPS RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| EVAL-AD7694CB | 制造商:Analog Devices 功能描述: |
| EVAL-AD7694CB1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit, 250 kSPS PulSAR ADC in MSOP |
| EVAL-AD7694CBZ | 功能描述:BOARD EVALUATION FOR AD7694 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:PulSAR® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7694SDZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 EVALUATION BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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