Current sense amplifiers (current shunt monitors) measure the current of a load by measuring the voltage drop across a sense element, typically a shunt resistor.
Benefits of current sense amplifiers
- Unique input stage topology that allows the common mode voltage to exceed the supply voltage
- Zero-drift architecture offers very low offset voltage (VOS) and low offset drift to enable very accurate, stable measurements over a wide temperature range.
- Integrated precision gain resistor network enable improved accuracy via reduced gain error, lower gain drift and improved CMRR as well as a reduced footprint.
- Accuracy performance enables use of a smaller value shunt resistor which in turn lowers power dissipated as well as board footprint
Integrate the full analog signal processing and provide a voltage or current output
Integrate the full signal conditioning path and utilize a standard 2-wire digital interface
Provides a simple ALERT signal when the load current exceeds a threshold.
Read about Current Sense Amplifiers
- TIDA-00614 - 30A Range Bidirectional Current Shunt Monitor Reference Design
- TIDA-00328 - 50 mA-20 A, Single-Supply, Low-Side or High-Side Current Sensing Solution
- TIDA-00313 - -48V Telecom Current/Voltage/Power Sense with Isolation
- TIPD156 - Low-Drift Bidirectional Single-Supply Low-Side Current Sensing Reference Design
Getting Started with Current Sense Amplifiers:
Learn how to maximize the performance achieved when measuring current with a current sense amplifier. 15 short videos, each addressing a different topic.
Current Sense Amplifiers Videos