Search Results

< Back Jagdev Bariana: Chief Product Officer Linear Systems Mar 31, 2025 Linear Systems Promotes Jagdev Bariana to Chief Product Officer Linear Systems Promotes Jagdev Bariana to Chief Product Officer Fremont, California – April 1, 2025 – Linear Integrated Systems, Inc. , a leading designer and manufacturer of high-performance, small-signal discrete semiconductors, is proud to announce the promotion of Jagdev Bariana to Chief Product Officer (CPO). In this elevated role, Bariana will continue to oversee all product-related activities, ensuring efficient production processes, maintaining high product quality, and aligning product strategies with customer needs and market demand. Bariana's tenure at Linear Systems has been marked by significant contributions to product management and development. His expertise in data analysis, testing, quality assurance, and new product development has been instrumental in advancing the company's product offerings. His leadership in managing and training teams has fostered a culture of excellence and continuous improvement. Bariana's commitment to customer support and collaboration with engineering and marketing teams has ensured that Linear Systems consistently meets and exceeds market demands. Prior to joining Linear Systems, Bariana amassed 15 years of experience as a Product Engineer at Supertex, where he honed his skills in product development and engineering. In his new role as CPO, Bariana will leverage his extensive experience to drive product innovation and operational excellence, ensuring that Linear Systems continues to deliver high-quality products that meet the evolving needs of its customers. About Linear Systems: Founded in 1987 by John M. Hall, Cindy L. Johnson, and John H. Hall, Linear Integrated Systems, Inc. is a privately held designer and manufacturer of small-signal discrete semiconductors based in Fremont, CA. John H. Hall, a co-founder of Intersil and the founder of Micro Power Systems, brought significant expertise and innovation to the company. Linear Systems offers a diverse product line, including Dual JFET Amplifiers , Single JFET Amplifiers , JFET Switches , DMOS High Speed Switches , Low Leakage Diodes , Current Regulating Diodes , Bipolar Transistors , MOSFETs , Voltage Controlled Resistors and BIFET Amplifiers . Visit www.linearsystems.com to download our 2024 Data Book , Cross Reference Guide , datasheets, SPICE models, application notes , and more. Stay connected and join our growing LinkedIn community for updates and insights. You can also follow us on YouTube , Facebook , Instagram and X . Contact: Jaime Cook VP of Operations & Market Development Linear Integrated Systems, Inc. jaimecook@linearsystems.com Let's connect on LinkedIn! www.linearsystems.com

SINGLE, LOW NOISE, HIGH GAIN, N-CHANNEL JFET AMPLIFIER < Back J/SST201 Series SINGLE, LOW NOISE, HIGH GAIN, N-CHANNEL JFET AMPLIFIER The J/SST201 Series Single, Low Noise, High Gain, N-Channel JFET Amplifier is a direct replacement for the Fairchild, NXP, and Siliconix-Vishay equivalent part. It is ideal for High Gain, Low Noise Applications. Available in the TO-92 3L and SOT-23 3L RoHS package, as well as die form. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: J201 TO-92 3L RoHS J202 TO-92 3L RoHS J204 TO-92 3L RoHS SST201 SOT-23 3L RoHS SST202 SOT-23 3L RoHS SST204 SOT-23 3L RoHS J201 Die J202 Die J204 Die Datasheet Spice Model Application Notes

< Back Headphone Amp Eval Board Introduction Linear Integrated Systems headphone amplifier evaluation board includes the following features: Stereo, single‐ended input and single‐ended output 400 mW output power into 100Ω Wide frequency response (10Hz‐200kHz; ‐1dB) Voltage gain 5 (14dB) Low distortion (THD+N is less than 1% at 10Hz‐20kHz at 5Vrms into 100Ω and less than 0.1% from 10 Hz to 20 kHz at 1Vrms into 100Ω load) Short‐circuit protection Pop reduction (slow start) circuit Defeatable cross‐feed circuit Volume control Overvoltage and reverse polarity power protection Audio input and output connections: left and right RCA phono jack inputs, ¼” stereo phone jack output External 9V–16V supply input External power supply connector: power jack, inside diameter 2.1mm, outside diameter 5.5mm Read More

SINGLE, LOW-NOISE, LOW-LEAKAGE, N-CHANNEL JFET AMPLIFIERS < Back LSK189 SINGLE, LOW-NOISE, LOW-LEAKAGE, N-CHANNEL JFET AMPLIFIERS The LSK189 Single, Low Noise, Low Leakage, N-Channel JFET Amplifiers is a single version of LSK489 Series. It is ideal for Ultra Low Noise Audio/Acoustic Applications. Available in TO-92 3L ROoHS, SOT-23 3L RoHS package, as well as in die form. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: LSK189 TO-92 3L RoHS LSK189 SOT-23 3L RoHS LSK189 Die Datasheet Spice Model Application Notes

DFN PACKAGE, SINGLE N-CHANNEL JFET SWITCH < Back 4391DFN Series DFN PACKAGE, SINGLE N-CHANNEL JFET SWITCH 4391DFN Series Single, Low Noise, N-Channel JFET Switch is a direct replacement for the Siliconix-Vishay equivalent part. It is ideal for Low Noise, High Gain, Low resistance Switching and Amplifier Applications. Available in the DFN 8L RoHS, TO-92 3L RoHS, TO-18 3L RoHS and SOT-23 3L RoHS package, as well as bare die. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: PN4391 TO-92 3L RoHS PN4392 TO-92 3L RoHS PN4393 TO-92 3L RoHS 2N4391 TO-18 3L RoHS 2N4392 TO-18 3L RoHS 2N4393 TO-18 3L RoHS SST4391 SOT-23 3L RoHS SST4392 SOT-23 3L RoHS SST4393 SOT-23 3L RoHS 2N4391 DIE 2N4392 DIE 2N4393 DIE Datasheet Spice Model Application Notes

Linear Systems designs and manufactures the highest-performance line of monolithic dual JFETs in the industry. Contact us for a quote! Back LSK389 Series LOW NOISE, MONOLITHIC DUAL, N-CHANNEL JFET T he LSK389A, B, C and D grades of high performance monolithic dual JFETs feature extremely low noise, tight offset voltage and low drift over temperature specifications, and is targeted for use in a wide range of precision instrumentation applications. This series has a wide selection of offset and drift specifications. This high-performance, ultra-low-noise dual N-Channel JFET amplifier is the only 100-percent noise tested JFET available and provides the optimal balance between very low noise (en =1.3nV/√Hz) and input capacitance (Ciss = 25pF). Available in TO-71 6L, SOIC 8L, as well as die form. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, Mosfet, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard data sheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: LSK389A TO-71 6L RoHS LSK389B TO-71 6L RoHS LSK389C TO-71 6L RoHS LSK389D TO-71 6L RoHS LSK389A SOIC 8L RoHS LSK389B SOIC 8L RoHS LSK389C SOIC 8L RoHS LSK389D SOIC 8L RoHS LSK389A Die LSK389B Die LSK389C Die LSK389D Die Datasheet Spice Model Application Notes

GENERAL PURPOSE < Back LS190 GENERAL PURPOSE The LS190 is a General Purpose Single N-Channel JFET Amplifier. This part is available in the TO-92 3L package, as well as the SOT-89 3L package. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Datasheet Spice Model Application Notes

MONOLITHIC DUAL, N-CHANNEL, JFET VOLTAGE CONTROLLED RESISTOR < Back VCR11N MONOLITHIC DUAL, N-CHANNEL, JFET VOLTAGE CONTROLLED RESISTOR The VCR11N Monolithic Dual, N-Channel, JFET Voltage Controlled Resistor is a direct Siliconix VCR11 Series. It is Ideal for Variable Resistor and Grain Control Applications. This part is available in the TO-71 4L RoHS package, as well as in die form. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part: VCR11N TO-71 6L VCR11N SOT-23 6L VCR11N DFN 8L VCR11N Die Datasheet Spice Model Application Notes

TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR < Back LS350 Series TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR The LS350 Series, Tight Matching, Monolithic Dual, PNP Transistor is a direct replacement for the Analog Devices MAT series and Micro Power Systems MP350, MP351, and MP352 Series. It is ideal for Tight Matching, Small Signal, Transistors Amplifier & Switching Applications. It is available the in TO-71 6L, TO-78 6L, PDIP 8L, SOIC 8L, SOT-23 6L and DFN 8L package, as well as bare die. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: LS350 TO-71 6L RoHS LS351 TO-71 6L RoHS LS352 TO-71 6L RoHS LS350 TO-78 6L RoHS LS351 TO-78 6L RoHS LS352 TO-78 6L RoHS LS350 PDIP 8L RoHS LS351 PDIP 8L RoHS LS352 PDIP 8L RoHS LS350 SOIC 8L RoHS LS351 SOIC 8L RoHS LS352 SOIC 8L RoHS LS350 SOT-23 6L RoHS LS351 SOT-23 6L RoHS LS352 SOT-23 6L RoHS 351 DFN 8L RoHS 352 DFN 8L RoHS 353 DFN 8L RoHS LS350 Die LS351 Die LS352 Die Datasheet Spice Model Application Notes

< Back MOSFETs Linear Systems Jul 9, 2024 Linear Systems’ small signal MOSFETs consist of two MOSFETs on the same piece of silicon resulting in better matching and better performance over temperature. In the world of electronics, MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are a type of field-effect transistor that have become increasingly popular due to their ability to handle high power and voltage levels. They are an essential component in many electronic devices and systems, making them an important topic for anyone interested in electrical engineering. Linear Systems, a renowned electronics company, is well-known for its production of high-quality MOSFETs. In this article, we will explore the basics of MOSFETs and dive into the specific features and advantages offered by Linear Systems' MOSFETs. What is a MOSFET? A MOSFET is a type of transistor that works by controlling the flow of current between the source and drain terminals using an electric field. The electric field is created by applying a voltage to the gate terminal, which is separated from the channel (where the current flows) by a thin layer of insulating material. There are two main types of MOSFETs: N-channel and P-channel. In an N-channel MOSFET, a negative voltage applied to the gate creates an electric field that allows current to flow between the source and drain terminals. In a P-channel MOSFET, a positive voltage applied to the gate has the same effect. Features of Linear Systems' MOSFETs Linear Systems takes pride in producing high-quality MOSFETs that offer a range of features and advantages. Here are some notable ones: High Power Handling: Linear Systems' MOSFETs can handle high power levels, making them suitable for use in various applications such as power supplies and motor drivers. Low On-State Resistance: The on-state resistance (RDS(on)) is an important parameter that determines the efficiency of a MOSFET. With its advanced design and manufacturing processes, Linear Systems' MOSFETs have low RDS(on) values, leading to reduced power losses and improved performance. Fast Switching Speed: Another critical factor in MOSFET performance is switching speed. Linear Systems' MOSFETs have fast switching speeds, allowing for efficient control of current flow and reducing the risk of thermal damage. Low Gate Threshold Voltage: The gate threshold voltage is the minimum voltage required to turn on a MOSFET. With low gate threshold voltages, Linear Systems' MOSFETs can be easily controlled by lower voltage signals, making them suitable for use in low-power applications. High Temperature Operation: Linear Systems' MOSFETs are designed to operate at high temperatures without sacrificing performance or reliability. This makes them ideal for use in harsh environments where other components may struggle to function properly. Advantages of Using Linear Systems' MOSFETs In addition to their features, Linear Systems' MOSFETs also offer several advantages over other types of transistors: Lower Cost: Compared to bipolar junction transistors (BJTs), MOSFETs are typically less expensive to produce. This cost-saving is passed onto customers, making Linear Systems' MOSFETs a more economical option for many applications. Less Power Consumption: MOSFETs have lower power consumption compared to BJTs due to their high input impedance and low leakage currents. This results in lower operating costs and improved energy efficiency for devices that use them. Smaller Size: Due to their small size and simplified manufacturing process, MOSFETs can be made in much smaller packages compared to BJTs. This makes them ideal for use in compact devices or applications where space is limited. High Reliability: Linear Systems' MOSFETs are highly reliable and have a long lifespan, making them suitable for use in critical systems that require continuous operation. They also have built-in protection features such as overvoltage and overcurrent protection, further increasing their reliability. Applications of Linear Systems' MOSFETs Due to their numerous advantages, Linear Systems' MOSFETs find use in various applications across different industries: Power Electronics: MOSFETs are commonly used in power electronics, such as motor drives and power supplies. Their high switching speed and low on-resistance make them well-suited for these applications. Automotive Industry: MOSFETs are also used extensively in the automotive industry due to their ability to handle high currents and voltages. They can be found in various components of vehicles, including ignition systems, electric windows, and electronic control units. Consumer Electronics: Many consumer electronics devices use MOSFETs, such as smartphones, laptops, and televisions. Their small size and low power consumption make them ideal for use in portable devices where space is limited. Industrial Automation: MOSFETs are commonly used in industrial automation systems, such as motor controllers and power inverters. Their high efficiency and reliability make them well-suited for these applications. Renewable Energy Systems: MOSFETs** play a crucial role in renewable energy systems, such as solar panels and wind turbines. They help regulate the flow of electricity by converting DC power to AC or vice versa, allowing for more efficient use of renewable energy sources.** Conclusion MOSFETs offer numerous advantages over traditional BJTs, making them an essential component in modern electronic devices and applications. With continued advancements in technology, MOSFETs will continue to play a vital role in increasing efficiency and reliability for various industries. As new developments in materials and design continue to emerge, MOSFETs will become even more versatile and play an even bigger role in powering the devices of tomorrow. So next time you power up your smartphone or use renewable energy, remember that MOSFETs are working hard behind the scenes to make it all possible! Additionally, researchers are constantly exploring new ways to improve MOSFET technology by experimenting with different materials, structures, and fabrication techniques. This ongoing research aims to further enhance the performance and efficiency of MOSFETs, making them an integral part of our future technological advancements. Moreover, as demand for low-power consumption continues to increase in various industries such as automotive, consumer electronics, and space exploration, MOSFETs will be crucial in meeting these energy-efficient requirements. This further highlights the significance of MOSFETs and their continued development in shaping our modern world. Future Possibilities: As technology advances and new applications emerge, there is no limit to what can be achieved with MOSFETs. With the potential for higher power densities, faster switching speeds, and improved reliability, MOSFETs have a promising future in various industries. From electric vehicles to smart grids, from medical devices to space missions, there are endless possibilities for using MOSFETs to improve efficiency and performance. As researchers continue to push the limits of what is possible with this technology, we can expect to see even more innovative uses of MOSFETs in the near future. Collaboration and Innovation: The development of MOSFET technology has been a collaborative effort between scientists, engineers, and manufacturers from around the world. This collaboration allows for the sharing of ideas, resources, and expertise leading to continuous innovation and improvement of MOSFETs. As we move towards a more interconnected global society, this collaborative approach will be crucial in driving advancements in MOSFET technology and its diverse applications. Impact on Society: The impact of MOSFETs goes beyond just technological advancement. These devices have also played a significant role in shaping our modern society. With their ability to improve energy efficiency and reduce power consumption, MOSFETs have contributed to reducing our carbon footprint and promoting sustainable living. Additionally, the use of MOSFETs in various electronic devices has made them more accessible and affordable for a wider demographic, enhancing connectivity and communication across the globe. Continued Development: Despite their success and widespread use, researchers are not slowing down in their efforts to improve MOSFET technology. As we continue to demand higher performance from our devices, the development of new materials, structures, and fabrication techniques will be crucial in meeting these demands. This continuous improvement ensures that MOSFETs remain at the forefront of technological innovation for years to come. View our MOSFETs.

HIGH VOLTAGE, SUPER BETA, MONOLITHIC DUAL, NPN TRANSISTOR < Back LS301 Series HIGH VOLTAGE, SUPER BETA, MONOLITHIC DUAL, NPN TRANSISTOR Previous Next

< Back FETs for Sensor Applications Introduction Linear Systems provides a variety of FETs (Field Effect Transistors) suitable for use in low noise amplifier applications for photo diodes, accelerometers, transducers, and other types of sensors. In particular, low noise JFETs exhibit low input gate currents that are desirable when working with high impedance devices at the input or with high value feedback resistors (e.g., ≥1MΩ). Operational amplifiers (op amps) with bipolar transistor input stages have much higher input noise currents than FETs. In general, many op amps have a combination of higher noise and input capacitance when compared to some discrete FETs. For example, a typical FET input op amp may have input capacitances of about 20 pF, whereas many discrete FETs have input capacitances of less than 5 pF. Also, there are few low noise FET input op amps that have equivalent input noise voltages density of less than 4 nV/ 𝐻𝑧. However, there are a number of discrete FETs rated at ≤ 2 nV/ 𝐻𝑧 in terms of equivalent Input noise voltage density. For those op amps that are rated as low noise, normally the input stages use bipolar transistors that generate much greater noise currents at the input terminals than FETs. These noise currents flowing into high impedances form added (random) noise voltages that are often much greater than the equivalent input noise. Read More