< Back FETching Discrete Amplifier Introduction Low-noise amplifiers for photodiode, piezoelectric, and other instrumentation applications typically call for circuit parameters such as extremely high input impedance, low 1/f noise, or subpicoamp bias currents that cannot be met with available integrated products. This article discusses the requirements and challenges of designing a low-noise amplifier using discrete components, with particular emphasis on input-referred noise and offset voltage trimming. Read More

HIGH VOLTAGE, SUPER BETA, MONOLITHIC DUAL, NPN TRANSISTOR < Back LS301 Series HIGH VOLTAGE, SUPER BETA, MONOLITHIC DUAL, NPN TRANSISTOR The LS301 Series High Voltage, Super Beta, Monolithic Dual, NPN Transistor is a direct replacement for the Micro Power Systems MP301, MP302, MP303 Series. It is ideal for Small Signal Transistors, Super Beta, Amplifier & Switching Applications. It is available the in TO-71 6L RoHS, TO-78 6L RoHS, PDIP 8L ROHS and SOIC 8L 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: LS301 TO-71 6L RoHS LS302 TO-71 6L RoHS LS303 TO-71 6L RoHS LS301 TO-78 6L RoHS LS302 TO-78 6L RoHS LS303 TO-78 6L RoHS LS301 PDIP 8L RoHS LS302 PDIP 8L RoHS LS303 PDIP 8L RoHS LS301 SOIC 8L RoHS LS302 SOIC 8L RoHS LS303 SOIC 8L RoHS LS301 Die LS302 Die LS303 Die Datasheet Spice Model Application Notes

TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR < Back LS350 Series TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR Previous Next

MONOLITHIC DUAL AND SINGLE, PNP TRANSISTOR < Back LS3550 Series MONOLITHIC DUAL AND SINGLE, PNP TRANSISTOR The LS3550 Monolithic Dual and Single, PNP Transistor is a Higher Current Version of the MP350, MP351, and MP352 Series. It is ideal for Small Signal Transistor, Super Beta Amplifier & Switching Applications. It is available the in TO-71 6L RoHS, TO-78 6L RoHS, PDIP 8L ROHS and SOIC 8L 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: LS3550A TO-71 6L RoHS LS3550B TO-71 6L RoHS LS3550C TO-71 6L RoHS LS3550A TO-78 6L RoHS LS3550B TO-78 6L RoHS LS3550C TO-78 6L RoHS LS3550A PDIP 8L RoHS LS3550B PDIP 8L RoHS LS3550C PDIP 8L RoHS LS3550A SOIC 8L RoHS LS3550B SOIC 8L RoHS LS3550C SOIC 8L RoHS LS3550A Die LS3550B Die LS3550C Die Datasheet Spice Model Application Notes

Explore our services and get in touch Our Services 01. Custom Project This service involves collaborating closely with you to define the scope, objectives, and deliverables for a unique project tailored to your specific needs. We will support you from initial concept through to detailed planning, ensuring all aspects are covered. This ensures a clear roadmap for successful execution. Show more 02. Personal Solution Planning We offer dedicated one-on-one sessions to understand your individual challenges and goals. Through active listening and guided discussion, we help you map out a personalized strategy for achieving your desired outcomes. Our aim is to provide clear, actionable steps for your personal journey. Show more 03. Expert Guidance Package Gain insights and strategic direction from industry professionals dedicated to your success. This package includes focused sessions designed to explore potential solutions and identify optimal paths forward for your business or personal goals. We equip you with the knowledge to make informed decisions. Show more

SINGLE, LOW LEAKAGE PICO-AMP DIODES < Back J/SST/PAD Series SINGLE, LOW LEAKAGE PICO-AMP DIODES The PAD Series Ultra-Low Leakage, Protection Diode is a direct replacement for the Siliconix-Vishay part series. It is ideal for Pico Amp, Ultra-Low Leakage, Protection Diode Applications. This part series is available in the TO-72 3L RoHS, TO-92 2L RoHS 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: PAD1 TO-72 3L RoHS PAD2 TO-72 3L RoHS PAD5 TO-72 3L RoHS PAD10 TO-72 3L RoHS PAD20 TO-72 3L RoHS PAD50 TO-72 3L RoHS PAD100 TO-72 3L RoHS JPAD5 TO-92 2L RoHS JPAD10 TO-92 2L RoHS JPAD20 TO-92 2L RoHS JPAD50 TO-92 2L RoHS JPAD100 TO-92 2L RoHS SSTPAD1 SOT-23 3L RoHS SSTPAD2 SOT-23 3L RoHS SSTPAD5 SOT-23 3L RoHS SSTPAD10 SOT-23 3L RoHS SSTPAD20 SOT-23 3L RoHS SSTPAD50 SOT-23 3L RoHS SSTPAD100 SOT-23 3L RoHS PAD1 Die PAD2 Die PAD5 Die PAD10 Die PAD20 Die PAD50 Die PAD100 Die Datasheet Spice Model Application Notes

SD5000 SERIES QUAD, HIGH SPEED N-CHANNEL, LATERAL DMOS FET SWITCH < Back SD5000 Series SD5000 SERIES QUAD, HIGH SPEED N-CHANNEL, LATERAL DMOS FET SWITCH The SD5000 is a Quad, High Speed N-Channel, Lateral DMOS FET Switch with Zener Diode Protection, ideal for Ultra-High Speed Switching Applications. Linear Systems acquired the Siliconix Lateral DMOS FET Switch Product Line, so our parts are the same maskset, process and are an exact pin-for-pin replacement. This series is available in the PDIP 16L RoHS, SOIC 14L RoHS and S/B DIP 16L 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: SD5000I PDIP 16L RoHS SD5000N PDIP 16L RoHS SD5001N PDIP 16L RoHS SD5400CY SOIC 14L RoHS SD5401CY SOIC 14L RoHS SD5000I S/B DIP 16L RoHS SD5000 Die SD5001 Die SD5400 Die SD5401 Die Datasheet Spice Model Applicaton Notes

< Back Consider the JFET Introduction Though not as well known as the bipolar transistor or op amp, this long-established transistor still excels in where you need to optimize circuit behavior, such as for lowest noise. Many engineers are somewhat familiar with discrete bipolar transistors, such as the venerable 2N2222. They are also comfortable with the MOSFET (metal-oxide semiconductor field-effect transistor) as a discrete device for amplifying analog signals and switching power signals, as well as its role as the key digital structural element in large-scale ICs. But alongside these devices is the JFET (junction field-effect transistor), which was developed soon after the bipolar transistor. To many designers, the JFET is the nearly ideal three-terminal solid-state device, and its operation and parameters are analogous to the vacuum-tube triode. The difference is that the JFET is, of course, a low-voltage, much-more efficient device, although it can't deliver the power that a vacuum tube can. For applications which require extremely low noise, the JFET is often offers superior performance compared to any other discrete device, as well as op amps. Read More

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 Ansberry Named VP Linear Systems Mar 17, 2023 Michael Ansberry - VP for Process Engineering. Ansberry Named VP NEWS RELEASE FOR INFORMATION CONTACT: Laura Madonna, Marketing Analyst Linear Integrated Systems, Inc. Phone: (510) 490-9160 Email: laura@linearsystems.com ANSBERRY NAMED VP FOR PROCESS ENGINEERING AT LINEAR INTEGRATED SYSTEMS FREMONT, CA – 06/27/2018. Linear Integrated Systems, Inc., is proud to announce and welcome Michael Ansberry as the company’s Vice President for Process Engineering. Ansberry will be responsible for all aspects of the company’s semiconductor fabrication operations. Ansberry joins Linear Integrated Systems (Linear Systems) from Lumileds, where he was Director of Operations. Lumileds is a lighting company that designs and manufactures LEDs for automotive, general and specialty lighting applications. Prior to Lumileds, he worked in process engineering at Sipex, Micro Power Systems and other Silicon Valley semiconductor companies. While Ansberry’s most recent experience is in managing large-scale LED production, he has extensive process engineering experience with the types of world-class semiconductors produced by Linear Systems. “Linear Systems makes the best parts in their class, and I’m very glad to be joining the team here,” Ansberry said. “Ultra-low-noise discrete components are critical for a wide range of applications and joining Linear Systems during this period of growth is exciting.” Linear Systems CEO Cindy L. Johnson said Ansberry's hiring is a key part of the company’s program to expand to meet a growing demand for its products. “Efforts to produce more precise and capable sensors are leading designers to incorporate our ultra-low-noise JFETs and other parts into their devices,” Linear Integrated Systems, Inc., is a full-service, privately-held, 30-year-old designer and manufacturer of small-signal discrete semiconductors. The Fremont, CA company was founded by John H. Hall, co-founder of Intersil and founder of Micro Power Systems. Linear Systems’ product line consists of: Ultra-Low-Noise N-Channel and P-Channel Dual and Single JFETs, High-Speed Lateral DMOS Switches, Bipolar Transistors, BIFET Amplifiers, Current-Regulating Diodes, Low-Leakage Diodes, MOSFETs, PhotoFETS, and Voltage Controlled Resistors. Data sheets can be downloaded at linearsystems.com .

Discover our diverse product line of innovative solutions at 4042 Clipper Court, Fremont, CA, USA. From Ultra-Low-Noise JFETs to Current Regulating Diodes, DMOS High-Speed Switches, MOSFETs, Bipolar Transistors, Low Leakage Diodes, and Voltage Controlled Resistors, we offer cutting-edge technology to meet your needs. Find the perfect solution for your requirements today! Our Products Explore our portfolio of precision analog semiconductors. Below you'll find our product families, each designed to deliver exceptional performance in demanding analog applications. Request a Quote Request Samples Contact an Engineer Dual JFETs Ultra-low-noise matched monolithic JFETs for precision analog circuits requiring exceptional noise performance, thermal tracking, and device matching. Single JFETs High-performance single JFETs designed for low-noise amplification, high input impedance, and precision analog signal processing. JFET Switches Precision JFET analog switches offering excellent linearity, low distortion, and reliable switching for demanding analog designs. DMOS Switches High-speed lateral DMOS switches with nanosecond switching speeds, extremely low crosstalk, and exceptional isolation for precision analog switching applications. Low Leakage Diodes Ultra-low reverse leakage diodes with leakage currents as low as 1 pA, ideal for electrometers, photodiodes, and precision measurement systems. Current Regulating Diodes Precision current-regulating diodes (CRDs) providing stable constant-current sources over a wide operating voltage range. Bipolar Transistors Low-noise bipolar transistors available in single and monolithic dual configurations for precision analog and instrumentation applications. MOSFETs Precision MOSFETs designed for analog switching, signal conditioning, and specialized low-power applications. VCRs Voltage Controlled Resistors that provide precise, voltage-variable resistance for automatic gain control, filtering, and analog signal processing. BIFET Amplifier Low-noise BiFET operational amplifiers combining JFET inputs with bipolar output stages for high input impedance and precision analog performance. Sample Box Evaluate our precision analog semiconductors with convenient sample kits featuring a selection of our most popular devices.

MONOLITHIC DUAL, NPN TRANSISTOR < Back IT124 MONOLITHIC DUAL, NPN TRANSISTOR Previous Next