Articles Analog Devices

1. Linear regulators in a digital way
   Frederik Dostal
   Supply Microcontrollers Usage Analog Devices LT3041 LT3074 LTC2972
   Abstract There is a new product type in the industry, the digital low dropout (LDO) linear regulator. It offers telemetry and adjustability of a linear power supply in a very small footprint. Such solutions are used in ultralow noise applications ...
   Jul 24, 2025
2. PassThru of a voltage using buck-boost regulators
   Frederik Dostal
   Supply Analog Devices LTC3130 LT8210 LT8337
   This article will illustrate how special converters equipped with PassThru mode can be useful when the circuit’s input voltage is too high or too low to power a load. It will give examples of how PassThru mode is used with buck-boost ...
   Jul 22, 2025

3. Operational amplifier for electrochemical sensors
   Tom Au-Yeung
   Sensors Analogue Design Measurement Analog Devices MAX32625 MAX40108 MAX44260
   Abstract This article discusses the applications of an operational amplifier for electrochemical gas sensors such as ethanol and carbon monoxide (CO). It also discusses the desired performance to provide optimum results for accurate measurement of ...
   Jun 18, 2025
4. Adaptive resolution for ADCs
   Damian Bonicatto Phoenix Bonicatto
   ADC, DAC Measurement Microcontrollers Usage Analog Devices MAX5362
   Impact of ADC resolution and its reference Engineers always want to get all they can from their circuits; this holds for analog-to-digital converters (ADCs). To maximize performance from an ADC, resolution is perhaps the primary spec to focus on. ...
   May 29, 2025
5. Noise from different switching regulator topologies
   Frederik Dostal
   Supply Analog Devices ADP2441
   Many different switching regulator topologies exist. Some, such as the classic stepdown converter, also known as a buck converter, are very widespread. However, there are also a few lesser known switch-mode dc-to-dc converters, including the zeta ...
   May 1, 2025
6. Regulation loop without a resistive divider
   Frederik Dostal
   Supply Analog Devices LT3045 LT8625S
   A new control loop architecture is designed to generate very low noise voltages. This can be utilized by both linear and switching regulators. In addition to the low noise achieved, the level of noise becomes independent of the set output voltage. ...
   Feb 27, 2025
7. Op amp input overvoltage protection: Clamping vs. integrated
   Daniel Burton
   Analogue Design Amplifiers Analog Devices ADA4077 ADA4177
   Introduction High precision op amps enable system designers to create circuits that condition signals (amplify, filter, and buffer) while maintaining the precision of the original signal. When information is contained in very small variations of ...
   Jan 22, 2025
8. Generating negative voltages - why you need level shifting in buck-boost circuits
   Frederik Dostal
   Supply Analog Devices ADP2386 MAX17579
   Inverting buck-boost circuits are commonly used for generating negative supply voltages from positive voltages. The most important step is ensuring that the negative voltages are generated correctly. However, additional level shifting circuits may ...
   Dec 12, 2024
9. Getting an audio signal with a THD < 0.0002% made easy
   Jordan Dimitrov
   Audio Measurement Analog Devices LTC6903 MAX293
   If you need a very pure sine wave in the audio range, the circuit in Figure 1 can help. It is a simple deal: A sine wave with a THD of 1% coming from a function generator that goes through a trackable low-pass filter, which attenuates the ...
   Oct 22, 2024
10. Gain-of-two instrumentation amplifier uses no external resistors
    Marián Štofka
    Analogue Design Amplifiers Analog Devices AD8222
    An instrumentation amplifier offers precise gain without feedback resistors, and, at any value of gain, it provides high input impedances at its noninverting and inverting inputs. In a typical IC instrumentation amplifier, a single resistor that ...
    Sep 3, 2024

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