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參數資料
| 型號： | AD5315BRM |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | 2.5 V to 5.5 V, 500 uA, 2-Wire Interface Quad Voltage Output, 8-/10-/12-Bit DACs |
| 中文描述： | SERIAL INPUT LOADING, 7 us SETTLING TIME, 10-BIT DAC, PDSO10 |
| 封裝： | MO-187BA, MSOP-10 |
| 文件頁數： | 14/20頁 |
| 文件大?。?/td> | 427K |
| 代理商： | AD5315BRM |
REV. F
–14–
AD5305/AD5315/AD5325
READ OPERATION
When reading data back from the AD5305/AD5315/AD5325
DACs, the user begins with an address byte (R/
W
= 0), after which
the DAC will acknowledge that it is prepared to receive data by
pulling SDA low. This address byte is usually followed by the
pointer byte, which is also acknowledged by the DAC. Following
this, there is a repeated start condition by the master and the
address is resent with R/
W
= 1. This is acknowledged by the DAC
indicating that it is prepared to transmit data. Two bytes of data
are then read from the DAC, as shown in Figure 9. A STOP
condition follows.
However, if the master sends an ACK and continues clocking
SCL (no STOP is sent), the DAC will retransmit the same two
bytes of data on SDA. This allows continuous readback of data
from the selected DAC register.
Alternatively, the user may send a START followed by the address
with R/
W
= 1. In this case, the previously loaded pointer settings
are used and readback of data can commence immediately.
DATA BYTE
LEAST SIGNIFICANT DATA BYTE
0
0
0
1
1
A0
R/
W
X
X
LSB
ACK
BY
AD53x5
SCL
SDA
START
COND
BY
MASTER
ACK
BY
AD53x5
MSB
SCL
SDA
0
0
0
1
1
0
A0
R/
W
MSB
LSB
ACK
BY
MASTER
REPEATED
START
COND
BY
MASTER
ACK
BY
AD53x5
ADDRESS BYTE
SCL
SDA
MSB
LSB
NO
ACK
BY
MASTER
STOP
COND
BY
MASTER
POINTER BYTE
ADDRESS BYTE
0
NOTE: DATA BYTES ARE THE SAME AS THOSE IN THE WRITE SEQUENCE EXCEPT THAT DON’T CARES ARE READ BACK AS 0s.
Figure 9. Readback Sequence
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相關代理商/技術參數 |
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|---|---|
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| AD5315BRMZ | 功能描述:IC DAC 10BIT 2WIRE I2C 10-MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數:12 數據接口:串行 轉換器數目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-uMAX 包裝:管件 輸出數目和類型:2 電壓，單極 采樣率（每秒）:* 產品目錄頁面:1398 (CN2011-ZH PDF) |
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