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| 型号： | DS1805Z-010+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC POT DIG ADDRESS 10K 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 接片： | 256 |
| 电阻（欧姆）： | 10k |
| 电路数： | 1 |
| 温度系数： | 标准值 550 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 1430 (CN2011-ZH PDF) |
DS1805
Addressable Digital Potentiometer
6
_____________________________________________________________________
Detailed Description
The DS1805 addressable digital potentiometer contains a
single 256-position digitally controlled potentiometer.
Device control is achieved through a 2-wire serial inter-
face. Device addressing is provided through three
address inputs that allow up to eight devices on a single
2-wire bus. The exact wiper position of the potentiometer
can be written or read. The DS1805 is available in 16-pin
SO and 14-pin TSSOP packages. The device is available
in three standard resistance values: 10k
, 50k, and
100k
. The DS1805 specified over the industrial temper-
ature range. The DS1805 is provides a low-cost alterna-
tive for designs based on the DS1803, but require only a
single potentiometer.
Device Operation
The DS1805 is an addressable, digitally controlled
device that has a single 256-position potentiometer.
Figure 1 shows a block diagram of the part.
Communication and control of the device is accom-
plished through a 2-wire serial interface that has SDA
and SDL signals. Device addressing is attained using
the device chip-select inputs A0, A1, and A2.
W1
SCL
SDA
A0
A1
A2
2-WIRE SERIAL
INTERFACE
REG-0 (8-BIT REGISTER)
SRAM
WIPER-1 (8-BIT REGISTER)
COMMAND/
CONTROL
UNIT
DEVICE ADDRESS
SELECTION
L1
256-TO-1 MULTIPLEXER
POTENTIOMETER-1
H1
Figure 1. Functional Diagram
PIN
TSSOP
SO
NAME
FUNCTION
11
H1
High End of
Potentiometer
23
L1
Low End of
Potentiometer
34
W1
Wiper Terminal of
Potentiometer
6, 5, 4
7, 6, 5
A0, A1, A2
Address Select Inputs
7
8
GND
Ground
8
9
SCL
Serial Clock Input
9
10
SDA
Serial Data I/O
10–13
2, 11–15
N.C.
No Connection
14
16
VCC
3V/5V Power-Supply
Input
Pin Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1805Z-010+ | 功能描述:数字电位计 IC Addressable RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1805Z-010+T&R | 制造商:Maxim Integrated Products 功能描述:SINGLE DIGITAL POT LEAD FREE |
| DS1805Z-050 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Addressable Digital Potentiometer |
| DS1805Z-10 | 制造商:Maxim Integrated Products 功能描述: |
| DS1805Z-100 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Addressable Digital Potentiometer |
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