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参数资料
| 型号： | DS1267E-10+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC POT DUAL DIGITAL 10K 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 74 |
| 接片： | 256 |
| 电阻（欧姆）： | 10k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 3 线串口 |
| 电源电压： | 4.5 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-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 1430 (CN2011-ZH PDF) |
DS1267
5 of 12
102199
The COUT output of the DS1267 can be used to drive the DQ input of another DS1267. When connecting
multiple devices, the total number of bits transmitted is always 17 times the number of DS1267s in the
daisy chain.
An optional feedback resistor can be placed between the COUT terminal of the last device and the first
DS1267 DQ input, thus allowing the controlling processor to read as well as write data or circularly clock
data through the daisy chain. The value of the feedback or isolation resistor should be in the range from 1
to 10 kohms.
When reading data via the COUT pin and isolation resistor, the DQ line is left floating by the reading
device. When RST is driven high, bit 17 is present on the COUT pin, which is fed back to the input DQ
pin through the isolation resistor. When the CLK input transitions low to high, bit 17 is loaded into the
first position of the I/O shift register and bit 16 becomes present on COUT and DQ of the next device. After
17 bits (or 17 times the number of DS1267s in the daisy chain), the data has shifted completely around
and back to its original position. When RST transitions to the low state to end data transfer, the value (the
same as before the read occurred) is loaded into the wiper-0, wiper-1, and stack select bit I/O register.
ABSOLUTE AND RELATIVE LINEARITY
Absolute linearity is defined as the difference between the actual measured output voltage and the
expected output voltage. Figure 5 presents the test circuit used to measure absolute linearity. Absolute
linearity is given in terms of a minimum increment or expected output when the wiper is moved one
position. In the case of the test circuit, a minimum increment (MI) or one LSB would equal 10/512 volts.
The equation for absolute linearity is given as follows:
(1)
ABSOLUTE LINEARITY
AL={VO (actual) - VO (expected)}/MI
Relative Linearity is a measure of error between two adjacent wiper position points and is given in terms
of MI by equation (2).
(2)
RELATIVE LINEARITY
RL={VO (n+1) - VO (n)}/MI
Figure 6 is a plot of absolute linearity and relative linearity versus wiper position for the DS1267 at 25°C.
The specification for absolute linearity of the DS1267 is ±0.75 MI typical. The specification for relative
linearity of the DS1267 is ±0.3 MI typical.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1267E-10/T&R | 制造商:Maxim Integrated Products 功能描述:IC DGTL POT 10K 2CH 20TSSOP |
| DS1267E-10/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 |
| DS1267E-10+ | 功能描述:数字电位计 IC Dual +/-5V 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 |
| DS1267E-10+T&R | 制造商:Maxim Integrated Products 功能描述:IC DGTL POT 10K 2CH 20TSSOP |
| DS1267E-10+T&R | 功能描述:数字电位计 IC Dual +/-5V 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 |
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