Electronic Design

Input-Source Impedance Affects DC-DC Converter Performance

To ensure the stability of dc-dc converters, most power-system designers adhere to the common rule that input source impedance should be small compared to the converter's input impedance. Not all ...
EDN

Wideband matched input impedance with ultra-low noise using the active match capability of a new type of amplifier (part 1 of 2)

Abstract: While all fully differential amplifiers (FDA’s) can act to convert a single ended input signal to differential output, none have thus far shown adequate performance to provide a good input ...
Electronic Design

Create A High Input Impedance, Rail-To-Rail Measurement System

Two very desirable features for a precision measurement system based on an analog-to-digital converter (ADC) are high input impedance and a wide input range, ideally including or extending slightly ...
Hackaday

input impedance

In the “Say It with Me” series, we’ll take a commonly used concept out of electronics and explain it the best we can. If there’s something that’s been bugging you, or a certain term or concept that ...
EDN

LTC Design Note: Robust high voltage Over-the-Top op-amps maintain high input impedance with inputs driven apart or when powered down

An Over-The-Top input stage is shown in Figure 1. At low common modes, the PNPs Q1 and Q2 form a conventional precision differential pair with tail current provided by I1. Figure 1 Over-The-Top Input ...