ISO124U – Integrated Circuit – Texas Instruments

Isolation Amplifiers Precision Low Cost I solation Amp A 595-ISO124U/1K

ISO124U – Precision Isolation Amplifier IC – Texas Instruments
Ensure signal integrity and safety in critical systems with the ISO124U isolation amplifier from Texas Instruments. This high-performance IC provides galvanic isolation between input and output stages, protecting sensitive equipment from voltage spikes and ground loops while delivering accurate signal amplification. Ideal for industrial and medical applications demanding robust noise immunity.

Key Features

Isolation Amplifier Type – Galvanic separation for enhanced safety
Wide Voltage Range – Operates from 9V to 36V
50 kHz Bandwidth – Ensures accurate signal reproduction
Low Power Consumption – Only 5mA supply current
Robust Temperature Range – -25°C to 85°C operation
Surface-Mount Design – 8-SOIC package for compact PCB integration

Technical Specifications
This single-circuit isolation amplifier features a 2V/μs slew rate and 20mV input offset voltage. With 15mA output current capability and industrial-grade temperature tolerance (-25°C to 85°C), it maintains precision in demanding environments. The surface-mount 8-SOIC package (7.50mm width) simplifies manufacturing while meeting strict space requirements.

Common Applications

Industrial motor control systems
Medical diagnostic equipment isolation
Power supply voltage/current monitoring
Data acquisition in noisy environments
Isolated sensor signal conditioning

About Texas Instruments
Texas Instruments stands at the forefront of semiconductor innovation, with decades of expertise in analog and embedded processing solutions. Their components power technological advancements across industries, from healthcare to industrial automation, setting benchmarks for performance and durability.
Renowned for rigorous quality control and continuous R&D investment, Texas Instruments maintains its position as a trusted global leader. Their isolation products like the ISO124U series undergo extensive validation to ensure compliance with international safety standards and long-term field reliability.

About Isolation Amplifiers
Isolation amplifiers are critical safety components that electrically separate input and output circuits while transmitting analog signals. They prevent dangerous voltage transients, eliminate ground loops, and protect both equipment and operators in high-voltage environments. This isolation barrier is essential for maintaining signal accuracy in electrically noisy systems.
Modern applications increasingly rely on these ICs for compliance with safety regulations like IEC 60601 for medical devices or industrial control standards. By providing barrier protection without signal degradation, isolation amplifiers enable precise measurements in power distribution, test equipment, and sensitive instrumentation.

Packaging
Available in protective tube packaging for secure handling and automated assembly.

FAQs
Question: What distinguishes an isolation amplifier from standard op-amps?
Answer: Isolation amplifiers incorporate physical barriers (optical or magnetic) between input/output circuits to block high-voltage transients, unlike conventional op-amps that share common grounds.

Question: Can the ISO124U handle medical applications?
Answer: Yes, its 5kV isolation rating and low-leakage design make it suitable for patient-connected medical equipment requiring reinforced insulation.

Question: What’s the maximum isolation voltage?
Answer: The ISO124U provides 1500Vrms continuous isolation (tested at 5kV for 1 minute) per UL 1577 standards.

Question: Does it require external components?
Answer: Only basic external capacitors are needed for power supply decoupling and noise filtering – refer to the datasheet for implementation details.