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Everything about Preamplifier
Electronic amplifier that converts weak signal into strong signal
A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker. Without this, the final signal would be noisy or distorted. They are typically used to amplify signals from analog sensors such as microphones and pickups. Because of this, the preamplifier is often placed close to the sensor to reduce the effects of noise and interference. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: PreamplifierA 5-minute orientation
- Skim a recent paper: An Improved Strong Arm Comparator With Integrated Static PreamplifierInfluential work since 2022
- Pick up a classic book: Enhancement of high-speed infrared array electronics (Center Director's Discretionary Fund, final report project number 93-03)The most-reprinted book on the subject
- Read the landmark paper: A novel charge sensitive preamplifier without the feedback resistorCited 124 times
- Go sideways: Line levelA closely related topic
- Go sideways: DI unitA closely related topic
📖 Definitions
Noun A voltage amplifier for amplifying a low-level input signal; its output is the input to a higher-level amplifier.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
A novel charge sensitive preamplifier without the feedback resistor
A micropower dry-electrode ECG preamplifier
S/N and error rate performance in AlGaAs semiconductor laser preamplifier and linear repeater systems
Fast recovery, high sensitivity NMR probe and preamplifier for low frequencies
Optimization of a laser satellite communication system with an optical preamplifier
A high-resolution NMR probe in which the coil and preamplifier are cooled with liquid helium
A hybrid AlGaInAs-silicon evanescent preamplifier and photodetector
Low noise current preamplifier for qPlus sensor deflection signal detection in atomic force microscopy at room and low temperatures
🆕 Influential since 2022
An Improved Strong Arm Comparator With Integrated Static Preamplifier
High Dynamic Range 100G PON Enabled by SOA Preamplifier and Recurrent Neural Networks
Miniaturized preamplifier integration in ultrasound transducer design for enhanced photoacoustic imaging
Design and performance of a high-speed and low-noise preamplifier for SiPM
Trade‐off between preamplifier noise figure and decoupling in MRI detectors
📚 Books worth reading
- 📕Enhancement of high-speed infrared array electronics (Center Director's Discretionary Fund, final report project number 93-03)W. T. Sutherland · 1996
- 📕"Receiver design, performance analysis, and evaluation for space-borne laser altimeters and space-to-space laser ranging systems"Frederic M. Davidson · 1994
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
- Line level Line level is the specified strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, television sets…
- DI unit A DI unit (direct input or direct inject) is an electronic device typically used in recording studios and in sound reinforcement systems to connect a high…
- Microphone preamplifier The term microphone preamplifier can either refer to the electronic circuitry within a microphone, or to a separate device or circuit that the microphone…
- Amplifier An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current)…
- Audio power amplifier An audio power amplifier (or power amp) amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup…
- Low-noise amplifier A low-noise amplifier (LNA) is an electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio…
- Preselector A preselector is a name for an electronic device that connects between a radio antenna and a radio receiver. The preselector is an adjustable band-pass…
- Noise temperature In electronics, noise temperature is one way of expressing the level of available noise power introduced by a component or source. The power spectral density…