Perhaps you have a quad pack of op amps, are using only three, and need a single comparator. It might be tempting to use the remaining op amp as a comparator, after all, both have high gain, low offset, and high common-mode rejection. But it’s easier said than done, because a comparator and an op […]
Amplifiers
Precision nanopower op amps excel at battery, sensor apps
Texas Instruments today introduced the industry’s first precision nanopower operational amplifiers (op amps). The LPV811 and LPV812 consume quiescent current as low as 320 nA and are part of a family of four new ultra-low-power op amps. With up to 60 percent lower power consumption than competitive precision op amps and offset voltage as low […]
AFE simplifies complex programming algorithms, extends life of industrial equipment
Analog Devices, Inc. introduced a highly integrated polyphase analog front end (AFE) with power quality analysis designed to help extend the health and life of industrial equipment while saving developers significant time and cost over custom solutions. Achieving extremely accurate, high-performance power quality monitoring typically requires customized development, which can be expensive and time-consuming. The […]
What’s the difference between instrumentation and precision amplifiers?
Instrumentation amplifiers (INAs) are precision devices, but they have a particular function and aren’t another type of operational amplifier (op amp). Instrumentation amplifiers are not op amps; you can’t configure them in a multitude of ways, and you only set gain to a chosen value, and only within a specified range. So op amps are […]
Low power AFE targets wearable devices
Analog Devices, Inc. today announced a low power, next-generation biopotential analog front end (AFE) which enables smaller, lighter, and less obtrusive cardiac monitoring devices with longer battery life. The AD8233 AFE is a fully integrated, single-lead electrocardiogram (ECG) front end designed in one compact, easy-to-use component. Typically, developers need to design ECG front ends from […]
Top analog threads on EDAboard.com – September
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum threads.) Single power supply instrumentation amplifier using LM324 – I am trying to design an instrumentation amplifier using LM324 (since […]
What is an op amp?
Op Amps or operational amplifiers, are fundamental building blocks in electronic design, mainly because these analog integrated circuits (ICs) are very versatile. Operational amplifiers can do more than amplify, or add “gain” to a signal, but it is a fundamental function that an op amp can magnify an input signal (and also any noise in […]
Top analog threads on EDAboard.com – August
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum thread.) Noise figure vs 1-dB point of LNA – If the low noise amplifier (or power amplifier) operates in […]
Top analog threads on EDAboard.com – July
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog IC forum thread.) LT6015 opamp and LTSpice simulation – I am wondering why the simulation of the scheme attached is working. Should […]
5-dB Gain Block Delivers 47 dBm OIP3 Linearity with Low Noise
Linear Technology announces the LTC6433-15, a wideband 15dB gain block amplifier offering outstanding linearity of 47dBm OIP3 (output third order intercept) and 3.22dB noise figure at 150MHz. The amplifier has excellent OP1dB (output 1dB compression point) of 19.2dBm. The LTC6433-15 is uniquely different from other gain block amplifiers that are typically built using GaAs or pHEMT […]