LIA135STR

Description：IC OPAMP ISOLATION 1 CIRC 8SMD
Series：-
Mfr：IXYS Integrated Circuits Division
Package：Tape & Reel (TR)

SKU:b5ab437fee40 Category: Instrumentation, Op Amps, Buffer Amps Brand: IXYS Integrated Circuits Division

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Product introduction

Product Detailed Parameters

Description：IC OPAMP ISOLATION 1 CIRC 8SMD
Series：-
Mfr：IXYS Integrated Circuits Division
Package：Tape & Reel (TR)
Amplifier Type：Isolation
Number of Circuits：1
Output Type：-
Slew Rate：-
Gain Bandwidth Product：10 kHz
Current - Input Bias：340 nA
Voltage - Input Offset：-
Current - Supply：-
Current - Output / Channel：-
Voltage - Supply Span (Min)：-
Voltage - Supply Span (Max)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：8-SMD, Gull Wing
Supplier Device Package：8-SMD
-3db Bandwidth：-

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LIA135STR

Overview

The LIA135STR is a low voltage optically isolated error amplifier manufactured by IXYS Integrated Circuits Division. It integrates a precision programmable shunt reference, an error amplifier, and an optocoupler into a single package capable of operating down to 1.6V. The device features a current transfer ratio ranging from 500% to 2000%. The LIA136 variant offers reduced dark current at high temperatures and enhanced common mode transient immunity of 20V/ns compared to the LIA135's 5V/ns. It operates within a temperature range of -40°C to +110°C.

Feature Summary

Integrates a precision voltage reference, error amplifier, and optocoupler in one package
Operates with input voltages as low as 1.6V over the full temperature range
Provides industry-leading dynamic range due to bias current isolation from the LED path
Features high common mode transient immunity for robust noise rejection

Applications

Low Voltage Power Supply Feedback
Isolated Power Supply Feedback
AC-to-DC Power Supplies
DC-to-DC Converters

Procurement Notes

Verify the specific suffix STR indicates tape and reel packaging containing 1000 units per reel. Confirm the base model number corresponds to the LIA136 specifications, particularly regarding high-temperature dark current reduction and common mode transient immunity ratings. Ensure the procurement documentation matches the manufacturer's standard surface mount tube or reel configurations.

Selection Notes

Select this component for applications requiring optical feedback in low voltage environments where standard references may fail below 2V. Choose the LIA136 variant if operation extends beyond 85°C or if higher common mode transient immunity is required. Consider the integrated compensation node for simplified frequency response tuning in DC-to-DC converter designs.

Part Context

This part belongs to the LIA135/LIA136 family of low voltage optically isolated error amplifiers. These devices serve as functional equivalents to discrete precision shunt regulators combined with optocouplers. The family includes DIP, SMT tube, and tape & reel options, designed specifically for isolated power supply feedback loops requiring high accuracy at low operating voltages.