Precision Signal Detection and Isolation for High-Voltage Applications
High-voltage isolation amplifiers play a critical role in detecting small voltage signals superimposed on high AC or DC voltages, typically exceeding 1000V. These amplifiers accurately isolate, amplify, and scale down the detected signals to a low common voltage level, enabling safe and precise signal processing.
Key Applications
The primary use of isolation amplifiers is in current measurement across current-sensing resistors positioned on high-voltage rails, such as:
AC power grids
Electric vehicle powertrain battery banks
By delivering a precisely amplified voltage signal, referenced to the ground of a low-voltage circuit, these amplifiers provide a reliable and accurate representation of the current flowing through the current-sensing resistor.
Introducing the AD202ATI – A High-Performance Upgrade
Analog Technologies, Inc. has developed a comprehensive series of high-voltage isolation amplifiers, among which the AD202ATI stands out as an enhanced, pin-to-pin compatible upgrade to the AD202.
Major Improvements Over AD202:
Exceptional Accuracy: ±0.005% (compared to AD202's ±0.025%)
Expanded Bandwidth: 20kHz (4× higher than AD202's 5kHz)
Cost-Effective Solution – Enhanced performance at a lower price
Additional Features:
Available in Two Package Types: SIP and DIP
Fully Encapsulated with Epoxy for durability and environmental protection
The AD202ATI delivers unmatched precision and efficiency, making it an optimal choice for high-voltage current sensing and signal isolation applications.
Block Diagram
