Opto-emulators

Upgrade your optocouplers, optical MOSs, SSRs and optocoupler gate drivers to improve system reliability and longevity
View all products

Browse by category

Our silicon dioxide isolation devices provide pin-to-pin upgrades for LED or light-based opto-isolators such as optocouplers, metal-oxide semiconductors (MOSs) and optorelays. Replacing light-based isolation with silicon dioxide isolation improves both system reliability and signal integrity. In industrial, automotive, space / avionics applications, these devices offer operating temperatures >125°C, common-mode transient immunity (CMTI) greater than ±125kV/µs, and stable current transfer ratios (CTRs) across lifetime and temperature. Our Automotive Electronics Council (AEC)-Q100 and radiation-tolerant Space Enhanced Products (-SEP) qualified opto-emulators enable functionality for secondary-side regulation in DC/DC applications and overvoltage detection in automotive and space applications, while still offering the reliability and longevity advantages of a silicon dioxide isolation device.

Select by type


High-speed logic-output optocoupler upgrades

Pin-to-pin upgrades for many logic-output optocouplers, including push-pull, totem-pole and open-collector outputs.

Optical MOS and SSR upgrades

Pin-to-pin upgrades for many photo and optical MOSs, photorelays, and low-power solid-state relays (SSRs).

Transistor-output optocouplers

Pin-to-pin upgrades for many transistor-output optocouplers.

Isolated gate-drive opto-emulators

Pin-to-pin upgrades for many optocoupler gate drivers, with higher noise immunity and improved timing skews.

Featured opto-emulators

Upgrade your optocouplers, optical MOSs and SSRs

Optimized designs
Reliable isolation
Pin-to-pin packages

Opto-isolators

Photo and optical MOS and SSR upgrades

Our opto-emulators have diode emulator inputs and a back-to-back metal-oxide semiconductor field-effect transistor output. These silicon dioxide-based devices have increased reliability and lifetimes compared to LED- or light-based isolation technologies.


White paper

Upgrading your designs with TI’s Pin-to-Pin Opto-emulator switch: ISOM8610

This white paper explains the difference between mechanical- and light-based switches. The ISOM8610 has a longer lifetime, improves system configurability, simplifies designs, and boosts performance.
REFERENCE DESIGN

Broken Wire Detection Using An Optical Switch Reference Design

Compact implementation of 16 isolated digital input channels using TI's ISO121x devices.  Broken wire detection can be implemented using only one additional optical MOS for each channel.

ISOM8610ACTIVE

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

ISOM8600ACTIVE

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

High-speed logic-output opto-emulators

Our high-speed or push-pull totem-pole output optocouplers are pin-to-pin compatible with traditional high-speed optocouplers. Our opto-emulators include current-driven diode-emulator inputs and high-speed complementary metal-oxide semiconductor transistor outputs that transmit pulse-width modulation (PWM) and other digital signals up to 25Mbps. These silicon dioxide-based devices have increased reliability and lifetimes compared to LED or light-based isolation technologies.


REFERENCE DESIGN

48V, 3.5kW small form-factor three-phase Inverter reference design for integrated motor drives

This reference design showcases a 48V 3.5kW small form-factor three-phase inverter reference design for integrated motor drives, using our opto-emulators to provide reliable and efficient isolation.
Application brief

Demystifying Isolation Certification Standards: Optocouplers vs Opto-emulators

This application brief contrasts traditional LED-based optocouplers and TI's silicon dioxide-based opto-emulators, along with their respective standards (IEC 60747-5-5 and IEC 60747-17) and testing requirements.

ISOM8710ACTIVE

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

High-speed logic-output opto-emulators

Our high-speed open-collector-output optocouplers are pin-to-pin compatible with traditional high-speed optocouplers. Our opto-emulators include current-driven diode-emulator inputs and high-speed logic outputs that transmit PWM and other digital signals up to 25 Mbps. These silicon dioxide-based devices have increased reliability and lifetimes compared to LED- or light-based isolation technologies. 


Application brief

Demystifying Isolation Certification Standards: Optocouplers vs Opto-emulators

This application brief contrasts traditional LED-based optocouplers and TI's silicon dioxide-based opto-emulators, along with their respective standards (IEC 60747-5-5 and IEC 60747-17) and testing requirements.
Product overview

Upgrade photoMOS, SSR and Push-Pull, Totem-Pole, or Transistor Output Optocouplers With Opto-emulators (Rev. A)

View opto-emulator output types including MOSs, photorelays and SSRs, along with high-speed push-pull- or totem-pole-output, open-collector-output, and transistor-output optocouplers.

ISOM8711ACTIVE

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

Transistor-output optocoupler

Our DC input transistor-output optocouplers are pin-to-pin compatible with traditional optocouplers. Our opto-emulators include current-driven diode-emulator inputs and bipolar junction transistor (BJT) outputs that transmit analog data. These silicon dioxide-based devices have increased reliability and lifetimes compared to LED- or light-based isolation technologies.

The family has automotive AEC-Q100-qualified, high reliability (-EP), and rad-tolerant (-SEP) solutions with CTR variants ranging from 100% to 600%. Industry-standard pin-to-pin package options support 3.7kV (5mm creepage) or 5kV (8mm creepage) isolation and 2.5mm (pitch) or 1.27mm (half pitch).


Application brief

Demystifying Isolation Certification Standards: Optocouplers vs Opto-emulators

This application brief contrasts traditional LED-based optocouplers and TI's silicon dioxide-based opto-emulators, along with their respective standards (IEC 60747-5-5 and IEC 60747-17) and testing requirements.
Application brief

Designing CC-CV Feedback Circuits With the TL103WB

This application brief discusses the design and optimization of constant current (CC)-constant voltage (CV) battery charging applications, and how opto-emulators can improve feedback loop reliability, performance and speed.
Application note

Introduction to Opto-Emulators (Rev. A)

This reference design includes an isolated, high-frequency (750kHz) flyback converter with a 48V input and a 24V and 0.7A output. An LM51561 provides PWM control, with an opto-emulator used for feedback isolation.

ISOM8110-Q1ACTIVE

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

ISOM8113-Q1ACTIVE

Automotive, DC-input transistor-output single-channel opto-emulator with 375% to 560% CTR

ISOM8113ACTIVE

DC input, transistor output, single-channel, opto-emulator with 375% to 560% CTR

Transistor-output optocoupler

Our AC input transistor-output optocouplers are pin-to-pin compatible with traditional optocouplers. Our opto-emulators include current-driven diode-emulator inputs and BJT outputs that transmit analog data. These silicon dioxide-based devices have increased reliability and lifetimes compared to LED- or light-based isolation technologies.

This family has automotive AEC-Q100-qualified solutions with CTR variants ranging from 100% to 600%. Industry-standard pin-to-pin package options support 3.7kV (5mm creepage) or 5kV (8mm creepage) isolation and 2.5mm (pitch) or 1.27mm (half pitch).


Application brief

Demystifying Isolation Certification Standards: Optocouplers vs Opto-emulators

This application brief contrasts traditional LED-based optocouplers and TI's silicon dioxide-based opto-emulators, along with their respective standards (IEC 60747-5-5 and IEC 60747-17) and testing requirements.
Application brief

Designing CC-CV Feedback Circuits With the TL103WB

This application brief discusses the design and optimization of CC-CV battery charging applications, and how opto-emulators can improve feedback loop reliability, performance and speed.

ISOM8115-Q1ACTIVE

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

ISOM8118-Q1ACTIVE

Automotive, AC-input transistor-output single-channel opto-emulator with 375% to 560% CTR

ISOM8118ACTIVE

AC input, transistor output, single channel, opto-emulator with 375% to 560% CTR

Technical resources

Technical article

Opto-emulators explained: Why you should upgrade your optocoupler technology (Rev. A)

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

Introduction to Opto-Emulators (Rev. A)

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.
RESOURCE

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.

ISOS510-SP