INA169
- Complete Unipolar High-Side Current Measurement Circuit
- Wide Supply and Common-Mode Range
- INA139: 2.7 V to 40 V
- INA169: 2.7 V to 60 V
- Independent Supply and Input Common-Mode Voltages
- Single Resistor Gain Set
- Low Quiescent Current: 60 µA (Typical)
- 5-Pin, SOT-23 Packages
The INA139 and INA169 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and tiny SOT-23 packaging enable use in a variety of applications.
Input common-mode and power-supply voltages are independent and can range from 2.7 V to 40 V for the INA139 and 2.7 V to 60 V for the INA169. Quiescent current is only 60 µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error.
The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.
Both the INA139 and INA169 are available in 5-pin SOT-23 packages. The INA139 device is specified for the –40°C to +125°C temperature range, and the INA169 is specified from –40°C to +85°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | INA1x9 High-Side Measurement Current Shunt Monitor 数据表 (Rev. F) | PDF | HTML | 2017-2-27 | ||
| 应用手册 | 将印刷电路板覆铜迹线用作电流检测 分流电阻器 | PDF | HTML | PDF | HTML | 2026-5-6 | ||
| 应用手册 | 简化负输出电源设计中的电流检测设计 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-10-30 | |
| 电路设计 | 采用电流输出电流检测放大器的高电压、高侧浮动电流检测电 路 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-10-1 | |
| 应用手册 | 扩展电流输出电流分流 监控器的共模电压范围 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2022-7-7 | |
| 应用简报 | 突破分立式电流感应放大器的最大共模范围 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2022-4-21 | |
| 应用简报 | 基于电流的 PLC 系统中离散数字输出的安全与保护 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2022-4-13 | |
| 应用简报 | 使用分立式电流感应放大器的LED 照明中的精密亮度和色彩混合 | 英语版 | 2017-5-2 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
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