(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog forum threads.) How do I design this darn differential amplifier? I’ve been trying to design a differential amplifier with the following […]
Amplifiers
High-power GaN SSPAs cover 13.75 to 14.5 GHz Ku-band
Comtech Telecommunications Corp.’s Santa Clara, California-based subsidiary, Comtech Xicom Technology, Inc., which is part of Comtech’s Commercial Solutions segment, announced today a series of high-power GaN SSPAs to fill out the top end of its industry-leading SSPA product line. The new compact and rugged amplifiers are significantly more efficient than competing SSPAs making them ideal […]
Current feedback amplifiers, Part 1
Almost every engineer who has to deal with real-world signals, analog sensors, front-end circuitry, filtering, line drivers/receivers, or general amplification is familiar with the basic operational amplifier (op amp) which is the building block of most analog circuity. These op amps generally use voltage feedback (VFB), and have been studied and used extensively. However, there […]
Top analog threads on EDAboard.com – August
(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog forum threads.) MOSFET getting very hot – In this schematic, the VCC feed with a less than 1 A MOSFET gets […]
Top analog threads on EDAboard.com – July
(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog forum threads.) Simulate a simple differential amplifier – My current source is 50 uA but the drain current of M16, M29 […]
Selecting an op amp
You could start with a similar op amp from a similar, known-good circuit or reference design and extrapolate from there. However, not everything labeled a reference design has actually been built and tested. But there’s another way to get organized and feel in control of the selection process. A methodical approach is outlined below that […]
Zero-drift op amp consumes just 1.3 μA
Analog Devices, Inc. announces the LTC2063 zero-drift op amp which draws just 1.3μA typ (2μA max) on a 1.8V supply. This micropower amplifier maintains uncompromised precision: maximum input offset voltage is 5μV at 25°C, maximum drift is 0.06μV/°C from –40°C to 125°C. Maximum input bias current is 15pA at 25°C, and 100pA from –40°C to […]
Why use a nonlinear amp?
Users normally place a great deal of value in the high linearity of an amplifier and its corresponding low distortion. Audio amplifiers, for example, are quoted with many linearity specifications, such as total harmonic distortion (THD) or 1%, 0.1% or even less. Even the outputs of amplifiers with internal topologies which are inherently nonlinear, such […]
Wideband plastic MMICs include power amps and switches
Microsemi Corporation announced a new family of wideband plastic packaged and chip monolithic microwave integrated circuit (MMIC) devices. The new products adds to a growing portfolio of high-performance wideband MMICs and include four plastic packaged low noise amplifiers (LNAs), MMA040PP5, MMA041PP5, MMA043PP4 and MMA044PP3; a wideband power amplifier (PA) chip, MMA053AA; and two plastic packaged switches, MMS006PP3 and MMS008PP3. The new MMIC products will […]
GaN MMIC amplifier covers 300 MHz to 6 GHz
Analog Devices, Inc. introduced a wideband gallium nitride (GaN) power amplifier that offers best-in-class performance within a compact design. Covering the 300 MHz to 6 GHz spectrum, the highly integrated HMC8205 provides significant benefits for system designers of applications such as wireless infrastructure, radar, public mobile radio, and general-purpose amplification test equipment that require pulse […]