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.
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 …
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.
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)
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.
Electrically Correct Analog Layout
Mar 17, 2017 · Similar problems can occur with 3 terminal resistors or capacitors, whose 3 rd terminal is a well or substrate connection, and may need isolation from other devices. Unfortunately, this additional level of isolation required can introduce errors, and isolation rings and well connections can be missed, or only found when the design is nearing completion and all levels of hierarchy are present.
The latest about RF front-ends in 5G, Wi-Fi 6E and IoT
Jun 28, 2021 · RF front-ends or RFFEs can help extend range, improve receiver sensitivity, manage antennas in 5G, Wi-Fi 6E, and other wireless networks.
Matching in Analog Layout - Planet Analog
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.
Signal Chain Basics #148: Understanding the impact of offsets in …
May 29, 2019 · Always observe both the differential- and common-mode output signals to diagnose offset effects. The effects of the differential signal will not show any changes in the common-mode signal; conversely, the common-mode signal will not show any changes in the differential signal.
A short primer on RF-over-fiber designs and applications
Jul 7, 2022 · Sometimes, you discover than despite what you think is your supposedly broad knowledge of technology and applications, you have a “blind spot.”