Analog Dialogue is a free technical magazine from chip makers Analog Devices Inc. Published monthly since 1967 and now done online, Analog Dialogue covers circuits, systems, and software for signal processing that relate to ADI chips. A feature in Analog Dialogue recently caught our eye because it covered some interesting territory relating to the generation […]
analogdevices
Single-chip AFE integrates optical, ECG, and bio-impedance measurement systems
Simplify the design of wearable remote patient monitoring (RPM) devices by measuring four vital signs with one MAX86178 triple-system vital signs analog front end (AFE) from Analog Devices, Inc. This single-chip AFE integrates three measurement systems (optical, ECG, and bio-impedance) to obtain four common vital signs: electrocardiogram (ECG or EKG), heart rate (ECG or optical […]
Bit errors and ADC testing
Most engineers are introduced to the basic performance parameters of analog/digital converters in school. So specifications such as SNR, SINAD (Signal-to-noise and distortion ratio), ENOB (Effective Number of Bits), and THDA (total harmonic distortion analysis) are all familiar ADC terms found in ADC data sheets. Ditto for an INL error, described as the deviation, in […]
Image gallery: Structural batteries, hub motors, do-it-yourself Li-ion pouches mark Detroit-area Battery Show
A tri-show event that included the Battery Show North America, Electric & Hybrid vehicle technology Expo, and the Critical Power expo concluded last week in Novi, Mich. and hosted numerous technical presentations and displays of interesting technology. Here are some of the more noteworthy developments we noticed on the exhibition floor. NEXT PAGE: All hail […]
Demo: One chip, multiple LTE signals for 3G, 4G, and 5G macro cell TDD base station work
Matt Purvis from ADI recently took us through a demo of a super-wideband RF transceiver chip that targets the expanding 5G telecom area. The point of the chip is to transmit multi-carrier LTE signals and to simplify the task of designing MIMO systems. Called the ADRV9009, it is a single-chip time division duplex (TDD) design […]
Supercapacitor backup power management module for 2.9 to 5.5-V supply rails
Analog Devices announces the Power by Linear LTC4041, a complete supercapacitor backup power management system for 2.9V to 5.5V supply rails that must be kept active during a main power failure. Supercapacitors have higher power density than batteries, making them ideal for systems requiring high peak power backup for short periods of time. View the LTC4041 product […]
Step-down DC/DC controller draws only 9 µA quiescent, targets burst-mode battery apps
Analog Devices announces the Power by Linear LTC3894, a high voltage step-down DC/DC controller that draws only 9µA quiescent current with the output enabled in Burst Mode operation. Its wide 4.5V to 150V input voltage range can effectively eliminate the need for external surge suppression devices. The LTC3894’s 100% duty cycle capability and externally adjustable power good window […]
Synchronous boost LED controller features 60-V output
Analog Devices announces the Power by Linear LT3762, a 60V output, high efficiency, synchronous, boost LED driver controller with a programmable internal LED PWM signal generator and spread spectrum frequency modulation that yield low EMI noise. The versatile LT3762 includes a rail-to-rail current sense amplifier, enabling high side or low side current sensing that in addition […]
Synchronous step-down switcher delivers 95% efficiency at 2 MHz, emits little EMI
Analog Devices announces the Power by Linear™ LT8642S, a 10A, 18V input synchronous step-down switching regulator. Its Silent Switcher® 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops. The LT8642S dramatically reduces EMI emissions as a result of its controlled switching edges and its internal […]
Audio bus transceivers handle multiple microphones for auto infotainment apps
Analog Devices, Inc. (ADI) announced today three enhanced Automotive Audio Bus (A2B®) transceivers that deliver unprecedented capability to tailor system-level performance to even the most stringent electromagnetic compatibility (EMC) requirements. The new AD242x series offers configurable transmit power levels, enabling the developer to match system performance to specific OEM EMC requirements – a key design criterion […]
