- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17060 > EVAL-AD7739EBZ (Analog Devices Inc)BOARD EVAL FOR AD7739 PDF資料下載
參數(shù)資料
| 型號： | EVAL-AD7739EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/32頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD7739 |
| 標準包裝： | 1 |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 15.1k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | ±2.5 V |
| 在以下條件下的電源（標準）： | 85mW @ 5V |
| 工作溫度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7739 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD7739BRUZ-REEL7-ND - IC ADC 24BIT 8CH SIG-DEL 24TSSOP AD7739BRUZ-ND - IC ADC 24BIT 8-CH 24-TSSOP AD7739BRU-REEL-ND - IC ADC 24BIT 8CH SIG-DEL 24TSSOP AD7739BRU-ND - IC ADC 24BIT 8-CH 24-TSSOP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
Data Sheet
AD7739
Rev. A | Page 23 of 32
CONTINUOUS CONVERSION MODE
When the mode register is being written, the ADC status byte is
cleared and the RDY pin goes high, regardless of its previous
state. When the continuous conversion command is written to
the mode register, the ADC starts conversion on the channel
selected by the address of the mode register.
After the conversion is complete, the relevant channel data
register and channel status register are updated, the relevant
RDY bit in the ADC status register is set, and the AD7739
continues converting on the next enabled channel. The part
cycles through all enabled channels until put into another mode
or reset. The cycle period is the sum of all conversion times of
enabled channels, set by the corresponding channel conversion
time registers.
The RDY bit is reset when the relevant channel data register is
being read. The behavior of the RDY pin depends on the
RDYFN bit in the I/O port register. When the RDYFN bit is 0,
the RDY pin goes low when any channel has unread data. When
the RDYFN bit is set to 1, the RDY pin goes low only if all
enabled channels have unread data.
If an ADC conversion result is not read before a new ADC
conversion is completed, the new result overwrites the previous
one. The relevant RDY bit goes low and the RDY pin goes high
for at least 163 MCLK cycles (~26.5 s), indicating when the data
register is updated, and the previous conversion data is lost.
If the data register is being read as an ADC conversion completes,
the data register is not updated with the new result (to avoid
data corruption) and the new conversion data is lost.
Figure 18 shows the sequence of the digital interface signal for
the continuous conversion mode with Channels 0 and 1 enabled
and the RDYFN bit set to 0. The RDY pin goes low and the data
register is read after each conversion. Figure 19 shows a similar
sequence but with the RDYFN bit set to 1. The RDY pin goes
low and all data registers are read after all conversions are
completed. Figure 20 shows the RDY pin when no data is read
from the AD7739.
Figure 18. Continuous Conversion, CH0 and CH1, RDYFN = 0
Figure 19. Continuous Conversion, CH0 and CH1, RDYFN = 1
Figure 20. Continuous Conversion, CH0 and CH1, No Data Read
SERIAL
INTERFACE
START
CONTINUOUS
CONVERSION
RDY
CH0 CONVERSION
READ
DATA
CH1
CH1 CONVERSION
CH0 CONVERSION
READ
DATA
CH0
CH1 CONVERSION
READ
DATA
CH0
CH0 CONVERSION
READ
DATA
CH1
03742-0-019
SERIAL
INTERFACE
START
CONTINUOUS
CONVERSION
RDY
CH0 CONVERSION
READ
DATA
CH1
CH1 CONVERSION
CH0 CONVERSION
READ
DATA
CH0
CH1 CONVERSION
READ
DATA
CH0
CH0 CONVERSION
READ
DATA
CH1
03742-0-020
SERIAL
INTERFACE
START
CONTINUOUS
CONVERSION
RDY
CH0 CONVERSION
CH1 CONVERSION
CH0 CONVERSION
CH1 CONVERSION
CH0 CONVERSION
03742-0-021
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EEV-HA1H330UP | CAP ALUM 33UF 50V 20% SMD |
| VE-B3B-EY | CONVERTER MOD DC/DC 95V 50W |
| EVAL-AD7738EBZ | BOARD EVAL FOR AD7738 |
| EVAL-AD7767-1EDZ | BOARD EVAL AD7767-1 64KSPS 111DB |
| EEV-HA1E470P | CAP ALUM 47UF 25V 20% SMD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7741/42EB | 制造商:Analog Devices 功能描述:Evaluation Board For Single And Multi-Channel Synchronous Voltage-To-Frequency Converters 制造商:Analog Devices 功能描述:EVALUATION BOARD IC - Bulk |
| EVAL-AD7741/42EBZ | 功能描述:BOARD EVAL FOR AD7741/7742 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-AD7741-42EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single and Multichannel, Synchronous Voltage-to-Frequency Converters |
| EVAL-AD7746EB | 制造商:AD 制造商全稱:Analog Devices 功能描述:24-Bit Capacitance-to-Digital Converter with Temperature Sensor |
| EVAL-AD7746EBZ | 功能描述:BOARD EVALUATION FOR AD7746 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 傳感器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。