- 您现在的位置：买卖IC网 > PDF目录9062 > DS1803Z-100 (Maxim Integrated Products)IC POT DUAL ADDRESS 100K 16-SOIC PDF资料下载
参数资料
| 型号： | DS1803Z-100 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/11页 |
| 文件大小： | 0K |
| 描述： | IC POT DUAL ADDRESS 100K 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）： | 100k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | I²C（芯片选择） |
| 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 |
| 其它名称： | DS1803Z100 |
DS1803
2 of 11
DEVICE OPERATION
The DS1803 is an addressable, digitally controlled device which has two 256-position potentiometers. A
functional block diagram of the part is shown in Figure 1. Communication and control of the device is
accomplished via a 2-wire serial interface. Address inputs A0, A1, and A2 allow up to 8 DS1803s to
share the same 2-wire interface.
Each potentiometer is composed of a 256 position resistor array. Two 8-bit registers, each assigned to a
respective potentiometer, are used to set the wiper position on the resistor array. The wiper terminal is
multiplexed to one of 256 positions on the resistor array based on its corresponding 8-bit register value.
For example, the high-end terminals, H0 and H1, have wiper position values FFh while the low-end
terminals, L0 and L1, have wiper position values 00h.
The DS1803 is a volatile device that does not maintain the position of the wiper during power-down or
loss of power. On power-up, the DS1803 wipers’ position will be set to position 00h - the low-end
terminals. The user may then set the wiper value to a desired position.
Communication with the DS1803 takes place over the 2-wire serial interface consisting of the bi-
directional pin, SDA, and the serial clock input, SCL. Complete details of the 2-wire interface are
discussed in the section entitled “2-wire Serial Data Bus.”
Application Considerations
The DS1803 is offered in three standard resistor values, which include 10k
Ω, 50kΩ, and 100kΩ. The
resolution of the potentiometer is defined as RTOT/255, where RTOT is the total resistor value of the
potentiometer. The DS1803 is designed to operate using 3V or 5V power supplies over the industrial
(-40
°C to +85°C) temperature range. Maximum input signal levels across the potentiometer cannot
exceed the operating power supply of the device.
2-WIRE SERIAL DATA BUS
The DS1803 supports a bi-directional 2-wire bus and data transmission protocol. A device that sends data
on the bus is defined as a transmitter, and a device receiving data as a receiver. The device that controls
the message is called a “master”. The devices that are controlled by the master are “slaves”. The bus must
be controlled by a master device which generates the serial clock (SCL), controls the bus access, and
generates the START and STOP conditions. The DS1803 operates as a slave on the 2-wire bus.
Connections to the bus are made via the open-drain I/O lines SDA and SCL.
The following bus protocol has been defined (see Figure 2).
Data transfer may be initiated only when the bus is not busy.
During data transfer, the data line must remain stable whenever the clock line is HIGH. Changes in
the data line while the clock line is high will be interpreted as control signals.
Accordingly, the following bus conditions have been defined:
Bus not busy:
Both data and clock lines remain HIGH.
Start data transfer:
A change in the state of the data line, from HIGH to LOW, while the clock is
HIGH, defines a START condition.
相关PDF资料 |
PDF描述 |
|---|---|
| ICS181MI-02LF | IC CLOCK GEN LOW EMI 8-SOIC |
| DS1867S-10+ | IC POT W/EEPROM DUAL 10K 16-SOIC |
| DS1867S-10 | IC POT W/EEPROM DUAL 10K 16-SOIC |
| VE-J12-MZ-F3 | CONVERTER MOD DC/DC 15V 25W |
| VE-J11-MZ-F2 | CONVERTER MOD DC/DC 12V 25W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1803Z-100/T&R | 制造商:Maxim Integrated Products 功能描述:ADD. DUAL DIG. POT 100K 16L SO T&R - Tape and Reel |
| DS1803Z-100/T&R | 功能描述:数字电位计 IC 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 |
| DS1803Z-100+ | 功能描述:数字电位计 IC Addressable Dual 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 |
| DS1803Z-100+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 256POS 100KOHM DUAL 16SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT DUAL ADDRESS 100K 16-SOIC 制造商:Maxim Integrated Products 功能描述:Digital Potentiometer ICs Addressable Dual |
| DS1803Z-100+T&R | 功能描述:数字电位计 IC Addressable Dual 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 |
发布紧急采购，3分钟左右您将得到回复。