This project brief describes how to build and use an Arduino-compatible interface board that reads an on-board pressure sensor and reports the measurement over…
This project brief describes how to build and use an Arduino-compatible interface board that reads an on-board pressure sensor and reports the measurement over an RS-485 network.
This project brief describes how to build and use an Arduino-compatible interface board that reads a 2-axis thumb…
This project brief describes how to build and use an Arduino-compatible interface board that reads a 2-axis thumb joystick and transmits its position over an RS-485 network.
This project brief describes how to build and use an Arduino-compatible relay interface board that switches a 10 A load…
This project brief describes how to build and use an Arduino-compatible relay interface board that switches a 10 A load over an RS-485 network.
Discover how the LT1079 quad op-amp minimizes sensor loading in battery-powered designs. Active cancellation and an…
Discover how the LT1079 quad op-amp minimizes sensor loading in battery-powered designs. Active cancellation and an onboard bridge network ensure maximum precision for resistive sensors.
This project brief describes how to build and use an Arduino-compatible board that reads a linear Hall-effect sensor and…
This project brief describes how to build and use an Arduino-compatible board that reads a linear Hall-effect sensor and reports the measurement over an RS-485 bus.
This article shows you how to configure Software Standby mode and implement a periodic wake-up routine on the Renesas…
This article shows you how to configure Software Standby mode and implement a periodic wake-up routine on the Renesas FPB-RA0E1 Fast Prototyping Board, built around the Arm Cortex-M23-based RA0E1 MCU.
Deriving a general signal-to-noise expression for frequency modulation with any message signal reveals a core trade-off:…
Deriving a general signal-to-noise expression for frequency modulation with any message signal reveals a core trade-off: more deviation buys better noise performance, but only by using more bandwidth.
This article explores how combining signal and noise power reveals how the FM system’s output SNR scales with carrier…
This article explores how combining signal and noise power reveals how the FM system’s output SNR scales with carrier amplitude and modulation index.
Explore how frequency-modulated waves resist interference. We break down the demodulator architecture and derive the…
Explore how frequency-modulated waves resist interference. We break down the demodulator architecture and derive the exact output signal power for a sinusoidal message.
Build a low-noise, 32-bit delta-sigma ADC board designed around the ADS1262. This 10-channel design features integrated…
Build a low-noise, 32-bit delta-sigma ADC board designed around the ADS1262. This 10-channel design features integrated signal conditioning for RTDs, thermocouples, and strain gauges.
Envelope detection is simple, but that simplicity has a noise-performance cost. Here’s how much SNR conventional AM…
Envelope detection is simple, but that simplicity has a noise-performance cost. Here’s how much SNR conventional AM gives up compared to its coherent counterparts.
Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors,…
Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors, hydrophones, guitar pickups, microphones, and turntables.
Using a graphical approach, we show that coherent SSB demodulation leaves the input and output SNR unchanged, then…
Using a graphical approach, we show that coherent SSB demodulation leaves the input and output SNR unchanged, then compare its noise performance to DSB-SC and baseband systems.
This project brief describes how to build and use a four-channel differential line receiver module for balanced RS-422…
This project brief describes how to build and use a four-channel differential line receiver module for balanced RS-422 and RS-485 data links.
Visualizing how correlated and uncorrelated signals combine offers an intuitive look at power transformation. See how…
Visualizing how correlated and uncorrelated signals combine offers an intuitive look at power transformation. See how this difference boosts baseband power to double the output SNR.
This project brief describes how to implement a four-channel differential line driver module for reliable long-distance…
This project brief describes how to implement a four-channel differential line driver module for reliable long-distance data transmission over balanced twisted-pair lines.
Learn how to build a constant-bandwidth band-pass filter covering 20 kHz to 60 kHz, with an integrated frequency counter…
Learn how to build a constant-bandwidth band-pass filter covering 20 kHz to 60 kHz, with an integrated frequency counter for precise tuning.
This project brief describes how to build a wide-range DC-DC buck converter capable of delivering a regulated 5.0 or 3.3…
This project brief describes how to build a wide-range DC-DC buck converter capable of delivering a regulated 5.0 or 3.3 V output from input voltages ranging from 7 to 60 V.
In this article, we'll learn how to calculate the noise power and signal-to-noise ratio (SNR) of a double-sideband…
In this article, we'll learn how to calculate the noise power and signal-to-noise ratio (SNR) of a double-sideband suppressed-carrier communication system.
This project brief explains how to construct a PCB-based audio-processing platform with an ATmega328 microcontroller. A…
This project brief explains how to construct a PCB-based audio-processing platform with an ATmega328 microcontroller. A link to Arduino code for creating an audio echo is also provided.
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