Analog Dialogue 49-07, July 2015
نویسندگان
چکیده
A zero-drift amplifier, as the name suggests, is an amplifier with offset voltage drift very close to zero. It uses autozero or chopping technology, or a combination of both, to continuously self-correct for dc errors over time and temperature. This enables the amplifier to achieve microvoltlevel offsets and extremely low offset drifts. Therefore, it is uniquely suited to be used in signal conditioning circuits with high gain and precision performance. For example, a sensor (such as a temperature, pressure, or load cell sensor) typically produces a low level output voltage and hence requires an amplifier to amplify its output without introducing additional errors. Zero-drift amplifiers, designed for ultralow offset voltage and drift, high common-mode rejection, high power supply rejection, and reduced 1/f noise, are an ideal choice to achieve a high level of resolution in a demanding system application, such as sensing, with a long product life cycle.
منابع مشابه
Analog Dialogue 49-07, July 2015
Time interleaving is a technique that allows the use of multiple identical analog-to-digital converters1 (ADCs) to process regular sample data series at a faster rate than the operating sample rate of each individual data converter. In very simple terms, time interleaving (IL) consists of time multiplexing a parallel array of M identical ADCs, as shown in Figure 1, to achieve a higher net sampl...
متن کاملAnalog Dialogue 49-03, March 2015
Used in a wide range of industrial, automotive, and commercial applications, electric motors are controlled by drives that vary the electrical input power to control the torque, speed, and position. High-performance motor drives can increase efficiency and deliver faster, more accurate control. Advanced motor-control systems combine control algorithms, industrial networks, and user interfaces, ...
متن کاملHigh-speed low-power comparator for analog to digital converters
Article history: Received 28 July 2015 Accepted 1 April 2016
متن کاملAnalog Dialogue 49-06, June 2015
Sensor misalignment is often a key consideration for high performance motion control systems that use MEMS inertial measurement units (IMUs) in their feedback loops. For the gyroscopes in the IMU, sensor misalignment describes the angular difference between each gyroscope’s axis of rotation and the system defined inertial reference frame, also known as the global frame. Managing the impact that...
متن کامل