Upgrade your optocouplers and improve reliability with an opto-emulator

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Opto-emulators are a pin-to-pin alternative to optocouplers, offering improved reliability and signal integrity for isolated systems across industrial applications. With TI's opto-emulators, you get the best of both worlds: the simplicity of drop-in replacements with wider operating temperature ranges, higher common mode transient immunity and longer lifetimes.

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Transistor output opto-emulators

Drop-in replacement for traditional optocouplers. Our opto-emulators include diode-emulator inputs and transistor outputs that transmit analog data in applications such as power supply feedback loops.

High-speed logic-output opto-emulators

Pin-compatible and drop-in replaceable for many traditional optocouplers. Our opto-emulators include diode-emulator inputs and digital outputs and can transmit data rate up to 25 Mbps.

Isolated gate drive opto-emulators

Our opto-emulated gate drivers support higher noise immunity, improved part timing skews and are pin-for-pin compatible drop-in replacements for traditional optocoupler gate drivers.

Featured opto-emulators


DC input, normally open output, single-channel isolated switch opto-emulator

Approx. price (USD) 1ku | 0.5


DC input, transistor output, single-channel, opto-emulator with 100% to 155% CTR

Approx. price (USD) 1ku | 0.19


DC input, open-collector output, single-channel high-speed opto-emulator

Approx. price (USD) 1ku | 0.28


DC input, logic output, single-channel high-speed opto-emulator

Approx. price (USD) 1ku | 0.28

Upgrade your optocouplers to opto-emulators


Pin-to-pin packages

Simplify your design-in process with a high-performing pin-to-pin alternative to existing optocouplers, available in industry-standard packages.


No aging effects

Eliminate the need to compensate for optocoupler aging. Because opto-emulators do not have aging effects or temperature variations to account for, the emulated diode input stage consumes less power.


Reliable isolation

Protect your design and signal integrity with isolation ratings as high as 3,750 VRMS, surge capability up to 10 kV and minimum common-mode transient immunity of ±85 kV/µs.

Understanding isolation technology

Address your isolation challenges with our reliable and affordable isolation technology. Through our proprietary isolation techniques, you can exceed isolation standards without compromising performance. Head to our isolation technology page to learn how to Increase safety with higher-reliability isolation at a lower system cost.

Technical resources

Technical article
Technical article
Opto-emulators explained: Why you should upgrade your optocoupler technology
Read the article to learn how opto-emulators combine the familiarity of optocouplers with the advantages of SiO2-based isolation to meet the demands of modern systems, ensuring enhanced performance, reliability and safety. 
Application note
Application note
Introduction to Opto-Emulators
This application note walks through the ins and outs of what an opto-emulator is, the key performance advantages over optocouplers, and some examples of common circuits that use opto-emulators. 
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FAQ forum: Opto-emulators
View and ask questions about opto-emulators in our Frequenty Asked Questions forum to learn more about our portfolio of opto-emulators.