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Jeff Shepard

When is a high CMRR needed in an op amp?

April 21, 2022 By Jeff Shepard

Common mode rejection ratio (CMRR), also called common mode rejection (CMR), quantifies the ability of an operational amplifier (op amp) to reject common-mode signals. Common-mode signals are signals that appear simultaneously and in phase on both inputs. This FAQ begins by defining what CMRR is and how it’s quantified, reviews some design considerations related to […]

Filed Under: Analog IC Tips, FAQ, Featured Tagged With: FAQ

What is PSRR and why is it important in op amps and LDOs?

April 18, 2022 By Jeff Shepard

The power supply rejection ratio (PSRR) describes the ability of a circuit to suppress any power supply variations from passing to its output signal and is typically measured in dB. It’s most often used with operational amplifiers (op amps), dc/dc converters, linear regulators, and low drop out regulators (LDOs). For op amps, the PSRR describes […]

Filed Under: Analog IC Tips, FAQ, Featured Tagged With: FAQ

How can AI/ML improve sensor fusion performance?

April 12, 2022 By Jeff Shepard

Sensors are becoming ubiquitous as their price and availability continue to improve. However, sensor data is not that simple and is prone to noise and other interference. The complexities of sensor data have led to sensor fusion that aims to perform better than a single sensor by improving the signal-to-noise ratio, decreasing uncertainty and ambiguity, […]

Filed Under: Applications, Artificial intelligence, Machine Learning, Sensor Tips Tagged With: FAQ

How are sensors improving maritime navigation?

April 11, 2022 By Jeff Shepard

Of course, GPS is important, but radar and the automatic identification system (AIS) use various sensors to track and report on ship positions in real-time. Sensor fusion is being developed for autonomous shipping. And there are hydrophones combined with other sensors and artificial intelligence (AI) and machine learning (ML) to identify and track whale movements […]

Filed Under: FAQ, Featured, Sensor Tips, Sensors Tagged With: FAQ

What sensors do you need to land on the moon?

April 6, 2022 By Jeff Shepard

SPLICE

NASA is developing several sensor systems and algorithms for use on Artemis moon landings. It’s called the Safe and Precise Landing – Integrated Capabilities Evolution (SPLICE) technology suite. It consists of three primary elements: An inertial measurement unit (IMU) and a camera for terrain relative navigation. Second is Doppler LiDAR to determine the lander’s velocity […]

Filed Under: Aerospace & Defense, Applications, FAQ, Featured, Sensor Tips Tagged With: FAQ

Four types of connectors for robots and drones

April 6, 2022 By Jeff Shepard

robots and drones

Many power and signal connectors are used in robot and drone sub-systems, such as sensors, motion, high-speed wired and wireless communications, and more. As industry 4.0 continues to unfold, more robots and more types of robots are being found in factories, warehouses, and other facilities to increase quality and efficiencies and reduce costs. Robots and […]

Filed Under: Applications, Connector Tips, FAQ, Featured, Industrial, Robotics/Drones Tagged With: FAQ

What sensors does NASA use to monitor Martian weather?

April 5, 2022 By Jeff Shepard

The Mars Environmental Dynamics Analyzer (MEDA) on the Perseverance rover is characterizing the surface weather as well as the dust particle size and morphology. Understanding dust behavior is a key to predicting Martian weather. Dust influences Mars’ weather the way that water controls Earth’s weather. Two of MEDA’s weather-related goals are: determination of the destructive […]

Filed Under: Aerospace & Defense, Applications, FAQ, Featured, Sensor Tips Tagged With: FAQ

What are 1-phase and 3-phase AC power connectors & standards?

April 1, 2022 By Jeff Shepard

Power connectors are primarily designed to ensure a safe and reliable connection of devices to AC mains power, although they are generally specified for AC and DC voltages. AC receptacles and plugs come in various configurations with different blade widths, shapes, positions, and dimensions, designed to make them safe to use and non-interchangeable with different […]

Filed Under: Connector Tips Tagged With: FAQ

Six key considerations when selecting and integrating GHz connectors into 5G applications

March 31, 2022 By Jeff Shepard

Connectors are essential components in radio frequency (RF) systems, especially in high-frequency applications like Gigahertz (GHz) 5G devices. Designers have a broad range of connectors to choose from, but there are a few key parameters to consider when narrowing down the choices. Six keys to selecting and integrating GHz connectors include physical size, frequency range […]

Filed Under: 5G, Applications, Connector Tips, FAQ, Featured, Telecommunications, Wireless Tagged With: FAQ

Why and how are medical connectors and standards different?

March 30, 2022 By Jeff Shepard

Medical connectors are different because medical applications are different. Medical systems require high reliability like industrial systems, but they have unique challenges where failure or unreliable operation can be life-threatening. A few examples include: Materials qualified for medical connectors are often specified to prevent bacteria growth and ensure that the connection system withstands sterilization or […]

Filed Under: Applications, Connector Tips, FAQ, Featured, Medical Tagged With: FAQ

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