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参数资料
| 型号： | AD5245BRJ10-R2 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | 256-Position I2C Compatible Digital Potentiometer |
| 中文描述： | 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO8 |
| 封装： | 2.90 X 3 MM, MO-178BA, SOT-23, 8 PIN |
| 文件页数： | 11/16页 |
| 文件大小： | 995K |
| 代理商： | AD5245BRJ10-R2 |
AD5245
I
2
C INTERFACE
Table 5. Write Mode
S
0
1
Rev. 0 | Page 11 of 16
0
1
1
0 AD0 W
A
X
RS
SD
Instruction Byte
X
X
X
X
X
A D7 D6 D5 D4 D3 D2 D1 D0
Data Byte
A
P
Slave Address Byte
Table 6. Read Mode
S
0
1
0
Slave Address Byte
1
1
0
AD0
R
A
D7
D6
D5
D4
Data Byte
D3
D2
D1
D0
A
P
S = Start Condition
P = Stop Condition
A = Acknowledge
X = Don’t Care
W = Write
R = Read
RS = Reset wiper to Midscale 80
H
SD = Shutdown connects wiper to B terminal and open
circuits A terminal. It does not change contents of wiper
register.
D7, D6, D5, D4, D3, D2, D1, D0 = Data Bits
t
1
t
3
t
4
t
2
t
7
t
8
t
9
P
S
P
S
t
10
t
5
t
9
t
8
SCL
SDA
t
2
t
6
Figure 36. I
2
C Interface Detailed Timing Diagram
SCL
FRAME 1
START BY
MASTER
ACK BY
AD5245
SLAVE ADDRESS BYTE
MASTER
INSTFRAME 2
SDA
0
1
0
1
1
0
AD0
R/W
X
RS
X
X
X
X
X
1
9
1
9
D7
D6
D5
D4
D3
D2
D1
D0
ACK BY
AD5245
DFRAME 3
1
9
ACK BY
AD5STOP BY
SD
Figure 37
. Writing to the RDAC Register
NO ACK
BY MASTSTOP BY
SCL
SDA
0
1
0
1
1
0
AD0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
1
9
1
9
FRAME 1
FRAME 2
RDAC REGISTER
START BY
MASTER
ACK BY
AD5245
SLAVE ADDRESS BYTE
MASTER
Figure 38. Reading Data from a Previously Selected RDAC Register in Write Mode
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相关代理商/技术参数 |
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|---|---|
| AD5245BRJ10-RL7 | 制造商:Analog Devices 功能描述:Digital Potentiometer 256POS 10KOhm Single 8-Pin SOT-23 T/R |
| AD5245BRJ5 | 制造商:AD 制造商全称:Analog Devices 功能描述:256-Position I2C-Compatible Digital Potentiometer |
| AD5245BRJ50 | 制造商:AD 制造商全称:Analog Devices 功能描述:256-Position I2C-Compatible Digital Potentiometer |
| AD5245BRJ50-R2 | 功能描述:IC POT DGTL 50K 256POS SOT23-8 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| AD5245BRJ50-RL7 | 制造商:Analog Devices 功能描述:Digital Potentiometer 256POS 50KOhm Single 8-Pin SOT-23 T/R |
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