TIPD104
電流感測解決方案、10uA-10mA、低壓側、單電源供電
TIPD104
概覽
This reference design provides the theory, component selection, and simulation of a single-supply, precision low-side current sensing solution that can accurately detect load currents from 10uA-10mA. The corresponding linear output is from 100mV to 4.9V. While traditional op amps can be used for such an application, the INA326 instrumentation amplifier enables a differential measurement and minimizes errors due to PCB parasitic. The INA326 can be used in low-side current sensing because the unique internal circuit topology allows for linear rail-to-rail input and output operation. A unique yet simple gain switching network was implemented in order to realize the wide load current range.
特點
- Senses current from 10uA-10mA
- Less than 0.1 % Error
- Outputs 100mV to 4.9V
- Single-Supply Solution
- Low-Side Measurement
- Unique gain-switching network
- Utilizes INA326 RRI/O Instrumentation Amplifier
This reference design includes:
- Theory
- Component Selection
- TINA-TI Simulation
- Modification Options
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 使用指南 | TIPD104 Design Reference Guide | 2013/9/19 |