Circuits & Schematics Analog Devices

1. Circuit compensates system offset of a load-cell-based balance
   Luca Bruno
   Circuits Measurement Microcontrollers Usage Analog Devices LT1461 LT1789 LTC1286
   It’s a challenge to interface a resistive bridge sensor with an ADC receiving its power from a 5 V single-supply power source. Some applications require output-voltage swings from 0 V to a full-scale voltage, such as 4.096 V, with excellent ...
   Sep 3, 2026
2. Finger-friendly DPOT pushbuttons do ups, downs, and dittos
   Stephen Woodward
   Circuits Digital Analog Devices AD5220
   Simple circuit saves hard-working fingers from unnecessary wear and tear. Digital potentiometers (DPOTs) with manual up/down increment/decrement interfaces can have real utility as versatile substitutes for traditional electromechanical pots. But ...
   Sep 3, 2026

3. DPOT push up/down
   Stephen Woodward
   Circuits Digital Analog Devices AD5220
   Some folks prefer pushbutton switches to take effect on push instead of release. These buttons do that very thing. I suppose it’s really just a matter of taste, but I’ve always liked momentary contact switches that act when you push ...
   Aug 26, 2026
4. Op-amp LC oscillator uses tank losses for amplitude stabilization
   Luca Bruno
   Circuits Oscillators Analog Devices AD633 LT1357
   This proposed design eliminates traditional additional requirements for AGC, AC coupling, and post amplification circuitry. This Design Idea presents a simple op-amp-based sine wave oscillator that directly generates a low-impedance bipolar output ...
   Aug 19, 2026
5. Push to increase, decrease a digital potentiometer
   Jayapal Ramalingam
   Circuits Digital Analog Devices AD5220
   Front-panel push button controls can conveniently adjust a PCB-mounted internal potentiometer’s resistance. Digital potentiometers in conjunction with MCUs find common use in analog circuits. The processor can adjust the gain of an amplifier, ...
   Aug 11, 2026
6. Simple, compact circuit conveniently controls devices and systems
   Michael Potash
   Circuits Supply Analog Devices LTC6992
   This easy-to-build PWM source is a handy testing tool for hobbyists, technicians, engineers and other RC-based device developers. I work at a university where I’m charged with designing and developing all manner of circuits and systems for ...
   Jul 27, 2026
7. Hi-end microphone preamplifier with variable compression, noise gating and adjustable gain
   Mike (mixos)
   Circuits Analogue Design Audio Analog Devices SSM2166
   The circuit shown in Figure 1 is a complete microphone signal conditioning system based on a single SSM2166 integrated circuit. Designed primarily for voiceband applications, this integrated circuit provides amplification, RMS detection, limiting, ...
   Jun 25, 2026
8. Newer, shinier DMM RTDs. Part 2
   Nick Cornford
   Circuits Measurement Analog Devices OP177
   In the first part ( Ref. 1 ) of this Design Idea, we saw how a cheap op-amp can give remarkably precise readings from an RTD. We also found that it was a false economy, owing to incurable thermal drift. This concluding part fixes that problem by ...
   Apr 8, 2026
9. 3V sweeping siren alarm
   David A. Johnson
   Circuits Audio Oscillators Analog Devices LTC1799
   A while back I was challenged by a visitor to the website. He needed a very loud sweeping siren type audio sound generator powered by 3 V. He tried some of the commercial sirens but they were not very loud when powered by 3 V. He also said that ...
   Mar 17, 2026
10. Self-oscillating sawtooth generator spans 5 decades of frequencies
    Christopher Paul
    Circuits Oscillators Analog Devices ADA4891-1 LM4041 LT1720
    There are many ways of generating analog sawtooth waveforms with oscillating circuits. Here’s a method that employs a single supply voltage rail to produce a buffered signal whose frequency can be varied over a range from 10 Hz to 1 MHz ...
    Feb 16, 2026

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