Operational Transconductance Amplifier (OTA) - Planet Analog
Aug 17, 2022 · Planet Analog Explores Operational Transconductance Amplifiers (OTA), Compares OTA vs. OP Amps, and Offers Practical Applications & Examples.
Using Deep N Wells in Analog Design
May 7, 2015 · In this case, the deep N well is formed by a high energy ion implantation to give peak impurity concentration deep enough to un-affect the NMOS device performance 1.Connection to the deep N well is formed by a N well ring that is connected to VDD.
An Analog Tutorial: Current sources - Planet Analog
Mar 28, 2019 · James Bryant, retired Analog Devices ‘guru’ says, “…current outputs offer advantages in a number of situations, including analog current-loop signaling (0 mA to 20 mA and 4 mA to 20 mA) in high-noise environments, and level shifting an analog signal across a large potential difference without the use of optical or magnetic isolation techniques.” (See Reference 4)
Matching in Analog Layout
May 20, 2014 · Analog circuits often use structures like differential pairs and current mirrors, where the matching of device characteristics such as the threshold voltage V t is important. Circuits using these structures with device threshold differences of a few millivolts or less can determine the performance and yield of a design.
Planet Analog - All Signal No Noise
5 days ago · Planet Analog provides an online community for semiconductor and system designers/engineers interested in advancing analog design techniques.
The Basics of SerDes (Serializers/Deserializers) - Planet Analog
Sep 16, 2010 · In a serial bus, a device called SerDes (Serializer/ Desrializer) is used to transmit and receive data over the serial link. In essence, a SerDes is a serial transceiver which converts parallel data into a serial data stream on the transmitter side and converts the serial data back to parallel on the receiver side.
Temperature Coefficients: Negative vs Positive - Planet Analog
Apr 28, 2017 · Copper has a positive temperature coefficient whereas it gets more resistive with increasing current. I’m going to borrow some text from one of the references as it is explained rather well here: “Whereas in the case of conductors, when temperature increases resistivity increases as electrons collide more frequently with vibrating atoms. This reduces drift speed of electrons (and thus ...
Buffer Amplifiers: Design & Applications - Planet Analog
May 7, 2018 · On the above plot, v L0 = 5.3 V. Though the power dissipation is matched at this output voltage, any change around this value causes a larger change in Δ p D than the same change in v L around v L (max). Consequently, the preferred bias point is at v L (max).. On the plot, v L (max) = 1.62 V. However, the given circuit parameters result in a static v L of 0 V instead.
Layout Dependent & LOD Effects in Analog Design
Oct 9, 2014 · Analog designers have always had to worry about physical layout to get good matching of devices. Variations in doping levels across the chip, usually assumed to be in a gradient in one or two dimensions, could be handled by …
Current sensing: PCB traces vs. shunt resistors - Planet Analog
Aug 2, 2023 · When tasked with a current sensing requirement, designers typically look first to using dedicated resistors designed for this task. Occasionally though there is the temptation to consider sensing current in a printed circuit board (PCB) trace.