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参数资料
| 型号： | AD5251BRU10 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | 32-Tap. Nonvolatile. Linear-Taper Digital Potentiometers in SOT23 |
| 中文描述： | DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO14 |
| 封装： | MO-153AB-1, TSSOP-14 |
| 文件页数： | 13/28页 |
| 文件大小： | 859K |
| 代理商： | AD5251BRU10 |
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AD5251/AD5252
RDAC/EEMEM Quick Commands
The AD5251/AD5252 feature 12 quick commands that facilitate
easy manipulation of RDAC wiper settings and provide RDAC-
to-EEMEM storing and restoring functions. The command
Rev. 0 | Page 13 of 28
format is shown in Figure 11 and the command descriptions are
shown in Table 9.
0 WRITE
0
1 CMD
S
0
1
0
1
1
A
D
1
A
D
0
0
A
C
3
C
2
C
1
C
0
A
2
A
1
A
0
A
P
RDAC SLAVE ADDRESS
CMD/
REG
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
S = START CONDITION
P = STOP CONDITION
A = ACKNOWLEDGE (SDA LOW)
A = NOT ACKNOWLEDGE (SDA HIGH)
AD1, AD0 = I
C DEVICE ADDRESS BITS. MUST MATCH WITH THE LOGIC STATES AT PINS AD1, AD0
R/W = READ ENABLE BIT, LOGIC HIGH/WRITE ENABLE BIT, LOGIC LOW
CMD/REG = COMMAND ENABLE BIT, LOGIC HIGH/REGISTER ACCESS BIT, LOGIC LOW
C3, C2, C1, C0 = COMMAND BITS
A2, A1, A0
= RDAC/EEMEM REGISTER ADDRESSES
Figure 11. RDAC Quick Command Write (Dummy Write)
Table 9. RDAC-to-EEMEM Interface and RDAC Operation Quick Command Bits (CMD/REG = 1,
A2
= 0)
C3
C2
C1
C0
Command Description
0
0
0
0
NOP
0
0
0
1
Restore EEMEM (A1, A0) to RDAC (A1, A0)
1
0
0
1
0
Store RDAC (A1, A0) to EEMEM (A1, A0)
0
0
1
1
Decrement RDAC (A1, A0) 6 dB
0
1
0
0
Decrement all RDACs 6 dB
0
1
0
1
Decrement RDAC (A1, A0) one step
0
1
1
0
Decrement all RDACs one step
0
1
1
1
Reset: Restore EEMEMs to all RDACs
1
0
0
0
Increment RDACs (A1, A0) 6 dB
1
0
0
1
Increment all RDACs 6 dB
1
0
1
0
Increment RDACs (A1, A0) one step
1
0
1
1
Increment all RDACs one step
1
1
0
0
Reserved
:
:
:
:
1
1
1
1
Reserved
1
This command leaves the device in the EEMEM read power state, which consumes power. Users should issue the NOP command to return the device to the idle state.
Table 10. Address Table for Reading Tolerance (CMD/REG = 0, EE/RDAC = 1,
A4
= 1)
A4
A3
A2
A1
A0
Data Byte Description
0
0
0
0
0
Reserved
:
:
:
:
:
1
1
0
0
1
Reserved
1
1
0
1
0
Sign and 7-bit integer values of RDAC1 tolerance (read only)
1
1
0
1
1
8-bit decimal value of RDAC1 tolerance (read only)
1
1
1
0
0
Reserved
1
1
1
0
1
Reserved
1
1
1
1
0
Sign and 7-bit integer values of RDAC3 tolerance (read only)
1
1
1
1
1
8-bit decimal value of RDAC3 tolerance (read only)
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相关代理商/技术参数 |
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| AD5251BRU100-RL7 | 功能描述:IC DCP DUAL 100K 64POS 14TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| AD5251BRU10-RL7 | 功能描述:IC DCP DUAL 10K 64POS 14TSSOP TR RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
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