参数资料
型号: DS1868E-100
厂商: Maxim Integrated Products
文件页数: 11/14页
文件大小: 0K
描述: IC POT DIGITAL DUAL 100K 20TSSOP
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): 100k
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: 2.7 V ~ 3.3 V,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
DS1868
6 of 14
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 5/256 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 DS1868 at 25
°C.
The specification for absolute linearity of the DS1868 is
±0.75 MI typical. The specification for relative
linearity of the DS1868 is
±0.3 MI typical.
LINEARITY MEASUREMENT CONFIGURATION Figure 5
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