参数资料
型号: DS2890P-000+T&R
厂商: Maxim Integrated Products
文件页数: 23/27页
文件大小: 0K
描述: IC POT DIGITAL 1-WIRE 100K 6TSOC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 4,000
接片: 256
电阻(欧姆): 100k
电路数: 1
温度系数: 标准值 800 ppm/°C
存储器类型: 易失
接口: 1 线 串行
电源电压: 2.8 V ~ 6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 6-LSOJ
供应商设备封装: 6-TSOC
包装: 带卷 (TR)
DS2890
5 of 27
FIGURE 3. 1-WIRE POTENTIOMETER FEATURE REGISTER
Feature Register Bit Encoding
b7
b6
b5
b4
b3
b2
b1
b0
PR
NWP
NP
WSV
PC
Feature Register Bit Definitions
Feature Description
Bit(s)
Definition
If 0: logarithmic potentiometer element(s)
PC: potentiometer characteristic
b0
If 1: linear potentiometer element(s)
If 0: wiper setting(s) are non-volatile
WSV: wiper setting volatility
b1
If 1: wiper setting(s) are volatile
NP: number of potentiometers
b3..b2
2 bit binary value representing number of potentiometers:
If 00b: 1 potentiometer
If 01b: 2 potentiometers
If 10b: 3 potentiometers
If 11b: 4 potentiometers
NWP: number of wiper positions
b5..b4
2 bit binary value representing number of wiper positions
for each potentiometer:
If 00b: 32 positions
If 01b: 64 positions
If 10b: 128 positions
If 11b: 256 positions
PR: potentiometer resistance
b7..b6
2 bit binary value representing potentiometer resistance:
If 00b: 5 k
Ω
If 01b: 10 k
Ω
If 10b: 50 k
Ω
If 11b: 100 k
Ω
DS2890 feature values are highlighted:
value
The DS2890 will respond with a feature register value of F3h when a READ CONTROL
REGISTER command is executed, see section “POTENTIOMETER FUNCTION COMMANDS”.
POTENTIOMETER CONTROL REGISTER
The potentiometer control register is used to turn on/off the DS2890 charge pump (see section
“POTENTIOMETER WIPER RESISTANCE AND CHARGE PUMP CONSIDERATIONS” for a
discussion of the charge pump) and has control capabilities for future 1-Wire potentiometers that could
contain multiple resistor elements. The format of the control register is shown in Figure 4.
相关PDF资料
PDF描述
DS28CM00R-A00+T IC SILICON SERIAL NUMBER SOT23-5
DS30EA101SQE/NOPB IC CABLE EQUALIZER 16LLP
DS3120N IC FRAMER T1 28-CHANNEL IND
DS31256+ IC CTRLR HDLC 256-CHANNEL 256BGA
DS3141+ IC FRAMER DS3/E3 SNGL 144CSBGA
相关代理商/技术参数
参数描述
DS2890T 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer
DS2890T-000 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
DS2890V 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer
DS2890V-000 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
DS2890X 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Digital Potentiometer