In Part 1, we looked at the basic principle and function of the solid-state temperature sensors, as well as the first widely available model, the AD590. Part 2 looks at some application considerations. Q: What are the interface considerations? A: A basic solid-state sensor has a PTAT current-only output. This means that the subsequent circuitry, […]
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Solid-state temperature sensing, part 1: principles
Temperature is by far the most commonly measured physical parameter in industrial, commercial, and even residential settings. It’s obviously about much more than just “what’s the temperature, so I will know what coat to wear?” Temperature readings are needed to control processes and systems via a negative feedback loop, PID algorithms, and comparators (References 1 […]
Zero-drift, nanopower op amp works from 650 nA supply current
Texas Instruments introduced the first operational amplifier (op amp) to combine ultra-high precision with the industry’s lowest supply current. With exceptional power-to-precision performance, the LPV821 zero-drift, nanopower op amp enables engineers to attain the highest DC precision, while consuming 60 percent less power than competitive zero-drift devices. The LPV821 is designed for use in precision […]
Analog Top Talks in November on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Adaptive biasing of source degeneration – I am designing an OTA with improved linearity, and I have used source […]
EMI/RFI shielding finger stock gaskets have many mounting options, lengths
Mounting options for EMI/RFI shielding BeCu and stainless steel finger stock gaskets from Tech-Etch include Snap-on, Stick-on, Clip-on, Track, extrusion, welding, and soldering. Gaskets are offered in strips ranging from 16 to 24 in. long, in continuous coils up to 35 ft. long, as single fingers, cut to requested lengths, or formed into contact rings. […]
RS232 and Related Standards, Part 2
Part 1 looked at the basics of RS-232. This part continues that examination, along with some extensions to the standard and test issues. Q: What are some of the issues associated with RS-232 and its performance? A: The standard allows for many user choices in how the DTE and DCE are configured: number of data […]
Relative humidity sensor ICs feature a ±1.5% RH accuracy, six-second response time
Integrated Device Technology, Inc. announced today the addition of a family of relative humidity (RH) sensor ICs to its fast-growing portfolio of advanced sensor products. IDT’s humidity sensors offer high accuracy with the fastest measurement response time of comparable devices currently on the market. The IDT HS300x family of relative humidity sensors feature a ±1.5% RH accuracy […]
Op amp ICs feature superior EMI immunity in all bands
Automotive-grade ground sense opamps ar esaid to deliver breakthrough EMI tolerance (noise immunity) for automotive systems using sensors. Developed using proprietary layout, processes, circuit design technologies, the BA8290xYxx-C series features superior noise immunity that suppresses output voltage fluctuation in all frequency bands to less than ±1%, compared to ±3.5% to ±10% with conventional products. The […]
Analog Top Talks in October on EDABoard.com forums
(editor’s note: Intrigued by the problem? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the analog forum threads.) Why the door ring can’t work? – I want to spend some time with my son so we decided to […]
Miniature water-resistant pressure sensors target wearable apps
As smart watches and wearable fitness trackers permeate the fabric of everyday life, owners want to go further with their devices and track performance across extra activities like swimming. Samsung’s Gear Fit 2 Pro, the next generation of sports band, supports these trends with features like built-in GPS, continuous heart rate monitoring,and larger on-board memory to do more even […]