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参数资料
| 型号： | AD5390BCP-3-REEL |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | DAC |
| 英文描述： | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
| 中文描述： | SERIAL INPUT LOADING, 8 us SETTLING TIME, 14-BIT DAC, QCC64 |
| 封装： | 9 X 9 MM, MO-220VMMD-4, LFCSP-64 |
| 文件页数： | 29/44页 |
| 文件大小： | 1319K |
| 代理商： | AD5390BCP-3-REEL |
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AD5390/AD5391/AD5392
3-BYTE MODE
The 3-byte mode lets the user update more than one channel in
a write sequence without having to write the device address byte
each time. The device address byte is required only once and
subsequent channel updates require the pointer byte and the
data bytes. In 3-byte mode, the user begins with an address byte
(R/W = 0) after which the DAC acknowledges that it is
prepared to receive data by pulling SDA low. The address byte is
followed by the pointer byte; this addresses the specific channel
in the DAC to be addressed and is also acknowledged by the
DAC. Address Bits A3 to A0 address all channels on the
Rev. A | Page 29 of 44
AD5390/AD5391. Address Bits A2 to A0 address all channels on
the AD5392. Address Bit A3 is a zero on the AD5392. This is
then followed by the two data bytes. REG1 and REG0 determine
the register to be updated.
If a STOP condition is not sent following the data bytes,
another channel can be updated by sending a new pointer
byte followed by the data bytes. This mode requires only three
bytes to be sent to update any channel once the device has
been addressed initially and reduces the software overhead in
updating the AD539x channels. A STOP condition at any time
exits this mode. Figure 34 shows a typical configuration.
0
REG0
MSB
MSB
LSB
LSB
REG1
ACK
BY
CONVERTER
ACK
BY
CONVERTER
STOP
CONDITION
BY
MASTER
REG0
MSB
MSB
LSB
LSB
REG1
1
0
0
0
0
0
0
A3
A2
A1
A0
1
1
AD1
AD0
R/W
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
START
CONDITION
BY
MASTER
ACK
BY
CONVERTER
ACK
BY
CONVERTER
ADDRESS BYTE
POINTER BYTE FOR CHANNEL N
MSB
ACK
BY
CONVERTER
ACK
BY
CONVERTER
ACK
BY
CONVERTER
MOST SIGNIFICANT DATA BYTE
MOST SIGNIFICANT DATA BYTE
POINTER BYTE FOR CHANNEL NEXT CHANNEL
DATA FOR CHANNEL N
DATA FOR CHANNEL NEXT CHANNEL
LEAST SIGNIFICANT DATA BYTE
LEAST SIGNIFICANT DATA BYTE
0
0
0
0
A3
A2
A1
A0
MSB
Figure 34. The 3-Byte Mode I
2
C Write Operation
相关PDF资料 |
PDF描述 |
|---|---|
| AD5391BCP-3-REEL | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
| AD5391BST-3 | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
| AD5391BST-5 | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
| AD5391BST-5-REEL | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
| AD5392 | 8-/16-Channel, 3 V/5 V, Serial Input, Single- Supply, 12-/14-Bit Voltage Output DACs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5390BCP-3-REEL7 | 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R |
| AD5390BCP-5 | 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP 制造商:Analog Devices 功能描述:14BIT DAC 16CH 5V 5390 LFCSP-64 |
| AD5390BCP-5-REEL | 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R |
| AD5390BCP-5-REEL7 | 制造商:Analog Devices 功能描述:DAC 16-CH Resistor-String 14-bit 64-Pin LFCSP EP T/R |
| AD5390BCP-U1 | 制造商:Analog Devices 功能描述:DAC HEXADECIMAL RES-STRING 14BIT 64LFCSP - Bulk |
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