Darwin Tolentino and Sandro Herrera, Analog Devices Analog Dialogue Differential signaling finds useful application in circuits where a large signal-to-noise ratio, high immunity to noise, and lower second harmonic distortion are desired, such as ...
Analog Dialogue Question: Why is the effect of common-mode signals at the output larger than the CMRR specification? Answer: The concept of common-mode rejection ratio (CMRR) is fundamental when working with differential input circuits, yet it is ...
Chris Francis Design World There are many reasons for needing to filter power supply or signal lines. Power supply lines from a switching regulator may be too noisy for sensitive analog circuitry. Signal or power supply lines may pick up ...
Analog Dialogue Introduction Building a voltage measurement system with nanovolt sensitivity presents many design challenges. The best available op amps, such as the ultralow noise AD797 , can achieve less than 1 nV/√Hz noise at 1 kHz, but ...
Design Note 533 Introduction Linear Technology’s Over-The-Top® op amps have an input stage topology that allows them to operate closed loop well above the positive supply rail. The inputs remain high impedance when split apart in voltage ...
David Hunter, Analog Devices Analog Dialogue Part 1. The AD8338 Input Network For this design, the differential output amplitude will be 1.0 V. With factory default settings, the internal 500 Ω resistors, and maximum gain, the input amplitude ...
David Hunter, Analog Devices Analog Dialogue In the past, the most difficult part of an arbitrary waveform generator was designing the output stage. Typical signal generators offer output ranges from 25 mV to 5 V. To drive a 50-Ω load, ...
Surprise, surprise. The bandwidth of an amplifier in a gain of +1 V/V is not the same as the bandwidth of the same amplifier in a gain of 1 V/V. After more than five years of working every day with amplifiers for an industry analogue leader, this ...
A low-pass filter is the most common filter found in data acquisition systems. Typically this type of filter is used to reduce analog-to-digital converter (ADC) aliasing errors and noise outside the signal bandwidth. A signal path requires this ...
By Charly El-Khoury, Analog Devices This article shows how compensating an amplifier - such as the ADA4895-2 , which is normally stable for a gain higher than +9 -to operate with a gain as low as +2 provides higher slew rate and faster settling ...