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| 型号： | MAX5492RC01100+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | RES NET MULT OHM 2 RES SOT-23 |
| 产品培训模块： | Precision Resistor Networks Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | MAX5492 |
| 电路类型： | 分压器 |
| 电阻（欧姆）： | 4.76k，5.24k |
| 电阻数： | 2 |
| 引脚数： | 5 |
| 每个元件的功率： | 160mW |
| 容差： | ±0.1% |
| 温度系数： | ±35ppm/°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 尺寸/尺寸： | 0.114" L x 0.064" W（2.90mm x 1.63mm） |
| 高度： | 0.057"（1.45mm） |
| 包装： | 带卷 (TR) |
| 工作温度： | -55°C ~ 125°C |
10k ? Precision-Matched
Resistor-Divider in SOT23
Typical Applications
= ? 1
A =
V OUT
V IN
R
R 2
IN
A =
V OUT
V IN
= 1 +
R 1
R 2
P3
OUT
P3
OUT
IN
P2
MAX5492
P1
P2
MAX5492
P1
R 2
R 1
R 2
R 1
Figure 1. Inverting Amplifier Configuration
IN
Figure 2. Noninverting Amplifier Configuration
A =
V OUT
V IN
=
R 2
R 1 + R 2
IN
P1
A =
V OUT
V IN
=
R 2
R 1 + R 2
P1
MAX5492
R 1
MAX5492
R 1
P3
P3
OUT
R 2
OUT
R 2
P2
Figure 3. Buffered Attenuator
Self-Heating and Error
Applying a voltage across terminals P1 and P2 causes
the device to heat up due to power dissipation. In high-
voltage applications, consider the error in resistance-
ratio temperature coefficient caused by self-heating.
The worst-case self-heating occurs when the operating
voltage attains its maximum value. Approximate the
result of power dissipation under this condition as:
P2
Figure 4. Attenuator with Buffer
The thermal resistance from junction to ambient, θ J-A ,
for a 5-pin SOT23 package is 141°C/W. Calculate the
resulting temperature rise as:
? T = 160mW x 141°C/W = 22.5°C
If the ratio temperature coefficient is 1.5ppm/°C (typ),
the total error introduced by self-heating is:
22.5 ° C x 1.5ppm/ ° C = 33.75ppm
P DISS =
( V MAX ) 2
R
=
( 40 V ) 2
10 k ?
= 160 mW
_______________________________________________________________________________________
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5494ETE | 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 |
| MAX5494ETE+ | 功能描述:数字电位计 IC 10-Bit Dual NV Linear-Taper 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 |
| MAX5494ETE+T | 功能描述:数字电位计 IC 10-Bit Dual NV Linear-Taper 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 |
| MAX5494ETE-T | 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 |
| MAX5495ETE | 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 |
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