10 µA to 100 mA: 0.05% error: high-side current sensing reference design
Texas Instruments
Description
This TI Precision Verified Design provides the theory: component selection: simulation: complete PCB schematic and layout: bill of materials: and measured performance of a split-supply: high-side four decade current sensing solution that can accurately detect load currents from 10uA-100mA. The corresponding linear output is from 10mV to 4.9V which enables measurement by common 5V ADCs. The design utilizes the PGA281: an instrumentation amplifier with pin-programmable gain and a wide common-mode voltage range: to provide a more accurate and versatile solution than traditional op amps.See more TI Precision Designs
End equipment reference diagrams
| Application area | End equipment |
|---|---|
|
https://www.ti.com/solution/programmable-dc-power-supply#referencedesigns |
Features
High-Side: Four Decade: Bi-directional: Current Sensing Verified SolutionSenses Current from 10uA-100mA with Supports up to ±12.5V Common-mode Input Range10mV to 4.9V output for measurement by common 5V ADCsUtilizes PGA281 pin-programmable gain instrumentation amplifier to achieve four decade current measurement This Verified Design Includes:Theory Component Selection TINA-TI Simulation Schematics and PCB Layout Verification and Measured Performance Modification Options
Applications
- Programmable DC power supply
Product categories
- Amplifiers
