Opto-emulators

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

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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 and automotive 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 qualified opto-emulators enable functionality for secondary-side regulation in DC/DC applications and overvoltage detection in automotive applications, while still offering the reliability and longevity advantages of a silicon dioxide isolation device.

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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).

Isolated gate-drive opto-emulators

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

ISOM8111
Opto-emulators

DC input, transistor output, single channel, opto-emulator with 150% to 230% CTR

Approx. price (USD) 1ku | 0.089

ISOM8111-Q1
Opto-emulators

Automotive, DC-input transistor-output single-channel opto-emulator with 150% to 230% CTR

Approx. price (USD) 1ku | 0.414

ISOM8112
Opto-emulators

DC input, transistor output, single channel, opto-emulator with 255% to 380% CTR

Approx. price (USD) 1ku | 0.089

ISOM8112-Q1
Opto-emulators

Automotive, DC-input transistor-output single-channel opto-emulator with 255% to 380% CTR

Approx. price (USD) 1ku | 0.414

ISOM8113
Opto-emulators

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

Approx. price (USD) 1ku | 0.089

ISOM8113-Q1
Opto-emulators

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

Approx. price (USD) 1ku | 0.414

Upgrade your optocouplers, optical MOSs and SSRs

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Optimized designs

With stable CTRs across time and temperature, silicon-based optocouplers eliminate the need to compensate for CTR degradation.

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Reliable isolation

Protect your design and signal integrity with isolation ratings as high as 5,000VRMS, surge capability up to 10kV and CMTI of ±125kV/µs.

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Pin-to-pin packages

Simplify your design process with a high-performing pin-to-pin alternatives to existing optocouplers, optical MOSs and SSRs, available in industry-standard 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.
PDF | HTML
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.
Featured products for Optical MOS devices
ISOM8610 ACTIVE DC input, normally open output, single-channel isolated switch opto-emulator
ISOM8600 ACTIVE 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.
PDF | HTML
Featured products for Push-pull opto-emulators
ISOM8710 ACTIVE 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.
PDF | HTML
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.
PDF | HTML
Featured products for Open-collector opto-emulators
ISOM8711 ACTIVE 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 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.
PDF | HTML
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.
PDF | HTML
Reference design
750kHz Isolated Flyback Converter (24V, 0.7A) With Opto-Emulator Reference Design
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.
Featured products for DC input opto-emulators
ISOM8110-Q1 ACTIVE Automotive, DC-input transistor-output single-channel opto-emulator with 100% to 155% CTR
NEW ISOM8113-Q1 ACTIVE Automotive, DC-input transistor-output single-channel opto-emulator with 375% to 560% CTR
NEW ISOM8113 ACTIVE 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.
PDF | HTML
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.
PDF | HTML
Featured products for AC input opto-emulators
NEW ISOM8115-Q1 ACTIVE Automotive, AC-input transistor-output single-channel opto-emulator with 100% to 155% CTR
NEW ISOM8118-Q1 ACTIVE Automotive, AC-input transistor-output single-channel opto-emulator with 375% to 560% CTR
NEW ISOM8118 ACTIVE AC input, transistor output, single channel, opto-emulator with 375% to 560% CTR

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. 
document-pdfAcrobat PDF
Resource
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.