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参数资料
| 型号： | DS1844S-100+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC POT DIG QUAD 100K 20-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 接片： | 64 |
| 电阻（欧姆）： | 100k |
| 电路数： | 4 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 2 线串行（设备位址）或 5 线串行 |
| 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： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
DS1844
10 of 14
11.
Address Inputs, A0, A1, and A2, should be tied to either VCC or GND depending on the desired
address selections.
12.
Resistor inputs cannot go below GND by more than 0.5 volts or above VCC by more than 0.5
volts.
13.
-3dB cutoff frequency characteristics for the DS1844 depend on potentiometer total resistance:
DS1844-010; 1 MHz; DS1844-050; 200 kHz; DS1844-100; 100 kHz.
14.
See Figure 3, 5-wire timing diagram.
15.
For 5-wire control logic and VCC = 5V ±10%, maximum VIL = +0.8V. For VCC = 3.0V ±10%,VIL
= +0.6V.
16.
Absolute linearity is used to measure expected wiper voltage versus measured wiper voltage as
determined by wiper position. The DS1844 is specified to provide an absolute linearity of ± 0.5
LSB.
17.
Relative linearity is used to determine the change in wiper voltage between two adjacent wiper
positions. The DS1844 is specified to provide a relative linearity of ± 0.25 dB.
18.
When used as a rheostat or variable resistor the temperature coefficient applies: 650 ppm/°C.
When used as a voltage divider or potentiometer, the effective temperature coefficient approaches
30 ppm/°C.
19.
Maximum ICC active current is dependent on clock rates during serial port activity. Maximum
ICC active current is specified for 5 MHz clock rates, and worse case input logic levels.
20.
tSETUP is the minimum time required for the port select input, PS, to be stable before any activity
on SDA or SCL terminals.
21.
tSETUP is the minimum time required for the port select input, PS, and/or the R/ W input to be
stable before RST becomes active (or goes to a high state).
22.
See Figure 8, 5-wire timing diagram.
23.
Measured with load as shown in Figure 9.
24.
Valid for VCC = 5V only.
25.
Valid at 25
°C only.
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相关代理商/技术参数 |
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| DS1845 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual NV Potentiometer and Memory |
| DS1845B-010 | 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 |
| DS1845B-010/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 |
| DS1845B-010+ | 功能描述:数字电位计 IC Dual NV w/Memory 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 |
| DS1845B-010+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 100/256POS 10KOHM DUAL 16CSBGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC POT/MEM DUAL NV 10K 16-BGA |
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