- 您现在的位置：买卖IC网 > PDF目录1915 > DS2890P-000+T&R (Maxim Integrated Products)IC POT DIGITAL 1-WIRE 100K 6TSOC PDF资料下载
参数资料
| 型号： | DS2890P-000+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 26/27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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页当前第26页第27页
DS2890
8 of 27
WIPER RESISTANCECONSIDERATIONS
A simplified diagram of the DS2890 resistor array for the potentiometer configuration is shown in
FIGURE 7. In this figure the
rDS resistance of the wiper transistors in Figure 1 are modeled as wiper
resistance RWIPER. The value of RWIPER varies with device configuration, operational state, and wiper
terminal voltage. Wiper resistance is significantly reduced when an external VDD supply is used and the
device charge pump is enabled. A wiper resistance graph with the charge pump enabled is shown in
FIGURE 8.
FIGURE 7. Potentiometer Resistor Model
RH
R
WIPER
RL
WIPER
FIGURE 8. Typical Wiper Resistance vs Wiper Voltage at 25
oC,
Charge Pump ON
100
1000
0.1
5.5
11
Voltage Across Wiper (V)
Wiper
Resistance
(ohms)
When packaged in a 3-pin TO-92 or configured as a variable resistor, the DS2890 takes on a
configuration as shown in FIGURE 9Error! Reference source not found., aError! Reference source
not found. simplified model is shown in Figure 10. As shown, the RL and Wiper terminals and are
connected to GND and the resistance between the RH terminal and GND is varied. As described
previously, the DS2890 charge pump must be turned off (default state) for operation with the TO-92
package or when VDD is not applied. Wiper resistance for a configuration with the charge pump
disabled is shown in FIGURE 11.
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 |
发布紧急采购，3分钟左右您将得到回复。