App note about end device security from Maxim Integrated, by adding DS28E40 Deep Cover 1-Wire authenticator to keep the system devices in-check. Link here The increasing electronic content in vehicles presents new attack surfaces to hackers. Digital authentication can reduce the risk of theft and counterfeiting of genuine and approved components. In mission-critical automotive applications, […]
Tag Archives: MAXIM integrated
App note: High-impedance and low-noise op amps enable dry electrodes in medical systems
App note from Maxim Integrated which introduces their buffer op-amp designed for wearable sensors on medical monitoring. Link here The use of wearable sensors for fitness and health monitoring is growing tremendously. Over the past decade, wearable technology has gained significant attention from the tech industry for commercial reasons and has generated interest from physicians […]
App note: Understanding challenges in USB charger design for automotive applications
This app note from Maxim Integrated describes the design and system challenges associated with USB chargers in automotive applications. Link here Recent advancements in the automotive infotainment market demand high-efficiency and low-footprint power delivery (PD) solutions. The inclination towards a reduction in bill of materials has driven USB power applications to integrate more features and […]
App note: How to design DC-DC control loop
App note from Maxim Integrated bringing you back to loop theory to understand loop compensation in a DC-DC converter. Link here In our life, control systems are everywhere, whether it be an air conditioner regulating room temperature, a driver steering a car, or an appliance managing the delicate process of cooking dumplings. Control, at its […]
App note: Applications of current DACs
App note from Maxim Integrated about current DACs and their uses. Link here The worldwide use of the electronic devices creates high demands for DACs to connect digital systems to the analog world such as the fiber optical communication networks, to bias photo diodes or to digitally control analog devices such as power supplies to […]
App note: Lithium-Ion cell fuel gauging with MAXIM battery monitors ICs
App note from Maxim Integrated on accurately measuring battery capacity by using battery monitors and fuel gauge plus software. Link here Determining the remaining charge of a Lithium-Ion cell accurately under real world conditions requires much more than just coulomb counting. The DS2438’s integrated current accumulator (ICA) provides an accurate measurement of cell capacity under […]
App note: Generating negative output voltage from positive input voltage using MAX17291 boost converter IC with active discharge feature
App note from Maxim Integrated about their MAX17291 generating negative voltage from positive input. Link here Many applications require the power supply to provide a negative voltage, such as LCD displays, gate drivers, embedded applications, op-amp circuits, etc,. This application note explains how to generate a negative output voltage from a positive input voltage using […]
App note: External programmable current limit for MAX38902 LDO
App note from Maxim Integrated about adding additional current limiting circuit for their MAX38902 LDO. Link here Current limit in a LDO establishes an upper threshold for the current delivered. In a low dropout linear regulator architecture, the input and output average currents, which are connected by a series pass-through transistor, are almost the same. […]
App note: How to measure the efficiency of a multiphase buck converter integrated circuit
Tips from Maxim Integrated on how to measure efficiency on complicated multiphase converters. Link here Due to the nature of multiphase buck converters, perceived efficiency varies for a static operating condition depending on the load and output voltage measurement connections, as well as the symmetry of the PCB layout. An engineer evaluating multiphase buck converters […]
App note: How to save power in high-precision measurements
App note from Maxim Integrated on achieving a lower power sensing in analog front end. Link here In precision signal conditioning and measurement applications, a delta-sigma ADC has often been preferred over a SAR ADC on account of high-resolution output and highly integrated internal blocks such as a PGA or GPIO voltage reference. However, in […]
App note: Industrial digital inputs with the MAX22191
App note from Maxim Integrated on their parasitically powered digital input interface chip which are used favorably on industrial applications. Link here A digital input (DI) is a circuit designed to receive a binary signal transmitted from an industrial sensor and translate that input into a reliable logic signal for a programmable logic controller (PLC) […]
App note: Designing a flyback converter with the MAX17291 micropower boost converter IC
App note from Maxim Integrated about designing isolated flyback converter using their micropower boost converter IC for auxiliary and industrial applications. Link here Flyback converters are widely used in isolated DC/DC applications because of their relative simplicity and low costs compared to alternative isolated topologies. The RS485, isolated CAN transceivers, auxiliary power supplies, etc. are […]
App note: How to multiplex a 1-Wire master into numerous channels
App note from Maxim Integrated on using only one 1-wire master on multiple 1-wire channels. Link here 1-Wire® networks are originally designed for communication with a single 1-Wire master and numerous 1-Wire slaves on a single 1-Wire bus. Preferably, a linear topology, which contains insignificant stubs, is best for a 1-Wire network. However, a star […]
App note: Detecting over-power scenarios using Maxim’s quad channel power monitors and voltage supervisors
App note from Maxim Integrated on their power monitoring and supervisory ICs. Link here It is inevitable to have a voltage protection circuit and a power monitoring circuit in any advanced electronics application such as Tablets, Smartphones and Notebooks etc. Power monitors are generally used in all applications that require to measure average power through […]
App note: Using 1-wire for flexible electro-mechanical contact applications
1-wire solution from Maxim Integrated for electro-mechanical attachment. Link here Adding electronic functionality to traditional nonelectronic peripherals and consumables is a common application requirement. This is typically driven by system requirements, including storage of calibration data, manufacturing information, or original equipment manufacturer (OEM) authentication of the peripheral, accessory, or consumable. In addition to selecting the […]
App note: How to improve ADC measurement accuracy with high input source impedance
Improving ADC accuracy a topic reviewed in this app note from Maxim Integrated. Link here Unbuffered ADCs are commonly used due to their simplicity of design. However, these ADCs have limited acquisition time and require input signals to settle within the allocated time. These ADCs must track their input signals for intervals longer than the […]
App note: Bring a “CAN-DO” attitude to your industrial drone design
Tech note from Maxim Integrated on using the proven robustness of CAN Bus to drone’s internal parts communication. Link here (PDF) Providing predictable and error-free communications, CAN bus networks have been the workhorse of the automobile industry for over thirty years. However, they have recently found a new lease on life in other industrial applications, […]
App note: Automotive infotainment gesture control for the rest of us
Gesture recognition discussed in this tech note from Maxim Integrated. Link here (PDF) Infotainment gesture control enhances driver experience and safety by helping avoid distractions caused by fiddling with touchscreens and poorly located dials. Gesture recognition can complement touchscreens, voice, and knobs so that the driver can focus on the road. Time-of flight cameras, although […]
App note: Secure hash algorithms back to basics
Maxim Integrated’s introduction to SHA security. Link here (PDF) This application note goes over the basics of Secure Hash Algorithms (SHA) and discusses the variants of the algorithm. It then briefly touches on how the algorithm is used for authentication, including the concept of a Hashed Message Authentication Code (HMAC). It concludes by looking at […]
App note: Tutorial selecting the optimum voltage reference
App note from Maxim Integrated guiding you when selecting voltage references. Link here What could be more basic than a voltage reference – a simple, constant reference voltage? As with all design topics, there are tradeoffs. This article discusses the different types of voltage references, their key specifications, and the design tradeoffs, including accuracy, temperature-independence, […]