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参数资料
| 型号： | DS1841N+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/17页 |
| 文件大小： | 0K |
| 描述： | IC RES LOG NV I2C 5.5V 10-TDFN |
| 标准包装： | 368 |
| 接片： | 128 |
| 电阻（欧姆）： | 22k |
| 电路数： | 1 |
| 温度系数： | 标准值 250 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 管件 |
DS1841
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
12
______________________________________________________________________________________
Register 0Ah: Control Register 2 (CR2)
FACTORY DEFAULT
00h
MEMORY TYPE
Volatile
0Ah
Reserved
Wiper
Access
Control
LUTAR Mode
Reserved
Bit 7
Bit 0
Bits 7 to 3
Reserved.
Bit 2
Wiper Access Control This bit is valid only in LUT Mode and in LUT Adder Mode.
0 = (Default) WR is loaded with the value from IVR summed with LUTVAL, or just the value of LUTVAL
based on the state of the Adder Mode bit.
1 = The DS1841 is placed in a manual mode, allowing WR (address 09h) to be programmed using I2C
commands.
Bit 1
LUTAR Mode This bit is valid only in LUT Mode and in LUT Adder Mode.
0 = (Default) The LUTAR value, located in at address 08h, is calculated following each temperature
conversion that points to the corresponding location in the LUT.
1 = Automatic updates of LUTAR are disabled, allowing the LUTAR register to be programmed using I2C
commands.
Bit 0
Reserved. This bit must be set to a 0.
Control Register 2 controls how the wiper position is determined.
Register 0Ch: Temperature Result (TEMP)
FACTORY DEFAULT
None
MEMORY TYPE
Volatile
0Ch
Sign
26
25
24
23
22
21
20
Bit 7
Bit 0
This register holds the current temperature result. It is updated every conversion time, tFRAME. To calculate the
temperature, treat the two’s complement binary value as an unsigned binary number, then convert it to decimal. If the
result is greater than or equal to 128, subtract 256 from the result. This register is only updated when the Update Mode
bit = 1. When the Update Mode bit = 0, no ADC updates are made to this register.
Register 0Eh: Supply Voltage Result (VOLTAGE)
FACTORY DEFAULT
None
MEMORY TYPE
Volatile
0Eh
Supply Voltage
Bit 7
Bit 0
This register holds the current supply voltage result. It is updated every conversion time, tFRAME. See the Supply Voltage
Monitoring section. This register is only updated when the Update Mode bit = 1. When the Update Mode bit = 0, no ADC
updates are made to this register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1841N+ | 功能描述:数字电位计 IC Temp-Cntrlld NV I2C Logarithmic Resistor 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 |
| DS1841N+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP-CNTRLD, NV, I2C, LOGARITHMIC RES - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RES LOG NV I2C 10-TDFN |
| DS1841N+T&R | 功能描述:数字电位计 IC Temp-Cntrlld NV I2C Logarithmic Resistor 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 |
| DS1841T+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Temperature-Controlled, NV, I2C, Logarithmic Resistor |
| DS1841T+T&R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Temperature-Controlled, NV, I2C, Logarithmic Resistor |
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