Tag Archives: ic

Ultra-thin, high thermal conductivity substrate integrates ESD protection

Clemens Valens @ elektormagazine.com discuss about a new IC substrate. He writes:

A new, ultra-thin ceramic substrate with an ESD strength of up to 25 kV – more than three times higher than the standard 8 kV of state-of-the-art Zener diodes – also features a high thermal conductivity of 22 W/mK. This is three times better than that of conventional carriers, even though the substrate is significantly slimmer. The new technology is especially well-suited for LED applications where the number and density of LEDs per unit continues to grow.

Ultra-thin, high thermal conductivity substrate integrates ESD protection – [Link]

ICStripBoard – PCB rapid prototyping tool

 

ICStripBoard is a innovative cheap tool to enable rapid prototyping of surface mount integrated circuits (IC’s) and allow their usage in prototype electronics projects.

Inline surface mount IC’s come in a Variety of packages which are different sizes and these Printed Circuit Boards (PCB’s) have been designed to accommodate the majority of IC’s. Available in the four standard IC pitches (space between IC pins) of 0.5mm, 0.65mm, 0.95mm and 1.27mm. These boards have been designed as long strips on thin (half the standard thickness) 0.8mm FR4 boards which can easily be cut to the correct amount of pins which the IC in question has. This allows the strip to be cut for multiple IC’s on multiple projects.

The cut pieces can easily be soldered and glued to other prototyping products and in conjunction with traditional through hole components can be used to create unique electronic prototypes. These boards will allow you to experiment with multiple IC’s without having to build PCB’s and is far cheaper than buying alternative break out boards due to the fact you cut them to size and the pattern repeats down the strip allowing this to be done multiple times. (more…)

LTC4380 Overvoltage Protection

Thomas Scherer @ elektormagazine.com writes:

When it comes to protecting sensitive circuitry from potentially damaging over-voltage spikes and supply surges we usually resort to networks of coils, capacitors, resistors and suppression diodes to iron out the transients. The LTC4380 low quiescent current surge stopper IC from Linear Technology goes about it in a different way; it looks out for over-voltage nasties and switches a fast N-channel external series-connected MOSFET to limit the surge. The chip is just 3 mm square and draws very little quiescent current.

LTC4380 Overvoltage Protection – [Link]

Inside the 74181 ALU chip: die photos and reverse engineering

A detailed die photos and reverse engineering of the 74181 ALU chip by Ken Shirriff:

What’s inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip.1 Inside I found several types of gates, implemented with interesting circuitry and unusual transistors. The 74181 was a popular chip in the 1970s used to perform calculations in the arithmetic-logic unit (ALU) of minicomputers. It is a moderately complex chip containing about 67 gates and 170 transistors3, implemented using fast and popular TTL (transistor-transistor logic) circuitry.

Inside the 74181 ALU chip: die photos and reverse engineering – [Link]

Software Defined Radio IC Decap

Software Defined Radio teardown: R820/RTL2832U Decap

Recently there has been much interest in two integrated circuit which were originally designed to receive FM radio and DVB-T TV (as used in Europe).
Some enterprising people quickly realised that since they were based on software-defined techniques they could be quickly re purposed for all sorts of clever things.

Software Defined Radio IC Decap – [Link]

MAX11311 – The Powerful Configurable Mixed Signal I/O

The MAX11311 is industry’s first configurable high-voltage mixed-signal I/O that allows user-defined ADC, DAC, or GPIO functionality.

Programming MAX11311 is very easy. A nice GUI tool helps to generate the right register values. If you want to make a universal signal processing board with a good number of I/O, it often gets very difficult to select a correct microcontroller. Finally, when you select one, it either has less I/O than you need or has fair enough number of I/O but burns your pocket. But if you know about MAX11311, then you’ve got a perfect solution.

Description:

The MAX11311 integrates a PIXI™, a 12-bit analog-to-digital converter (ADC), and a 12-bit digital-to-analog converter (DAC) in a single integrated circuit. This device offers 12 high voltage, bipolar ports. Each of the ports is configurable as an ADC analog input, a DAC analog output, a general-purpose input output (GPIO), or an analog switch terminal. One internal and two external temperature sensors track junction and environmental temperature. This feature prevents thermal runaway. Adjacent pairs of ports are configurable as a logic-level translator for open-drain devices or an analog switch.

MAX11311 MIcrocontroller Block Diagram
MAX11311 Mixed Signal I/O Block Diagram

Features:

  • Up to 12 12-Bit ADC Inputs
    • Single-Ended, Differential, or Pseudo-Differential Range Options: 0 to 2.5V, ±5V, 0 to +10V, -10V to 0V
    • Programmable sample averaging per ADC port
    • Unique voltage reference for each ADC PIXI port
  • Up to 12 12-Bit DAC Outputs
    • Range options: ±5V, 0 to +10V, -10V to 0V
    • 25mA current drive capability with over-current protection
  • Up to 12 General-Purpose Digital I/Os (GPIO)
    • 0 to +5V GPI input range
    • 0 to +2.5V GPI programmable threshold range
    • 0 to +10V GPO programmable output range
    • Logic-Level Shifting Between any two pins
  • 60Ω analog switch between adjacent PIXI Ports
  • Internal/External temperature sensors with ±1°C Accuracy

Applications:

You can use this chip as an expansion module to MCUs in various applications. Let’s see the list:

  • Base station RF power device bias controllers
  • Control for optical components
  • Industrial control and automation
  • Power supply monitoring
  • System supervision and control
  • Universal signal processing

Conclusion:

The MAX11311 adapts perfectly to specific application requirements and allows for easy reconfiguration as the system needs further change. It also reduces BOM (Bill of Materials) cost with fewer external components in a small footprint.

To know more about this awesome chip, refer to the datasheet.

Keeping up with Moore’s Law

20160816100854_toshiba-memorys

by Clemens Valens @ elektormagazine.com:

There was a time that every extra storage byte crammed into a chip was greeted with cheers and applause but today only few people will get the champagne out when an extra gigabyte or so is announced. We have become so used to the ever growing capacity of memory chips that new product launches in this area do not create much excitement anymore. Yet sometimes an event manages to stir things up a bit, like a few weeks ago when a major semiconductor manufacturer announced that it started sampling its new 32 gigabyte flash memory chip.

Keeping up with Moore’s Law – [Link]

From Sand to Circuits – How Intel makes integrated circuits [PDF]

intel

Here is a nice PDF document from Intel explaining how integrated circuits are made.

From Sand to Circuits – How Intel makes integrated circuits [PDF] – [Link]

AEM10940, A High Efficient Power Management IC From e-peas

AEM10940 is a power management IC designed by e-peas to store power from photovoltaics (PVs) cells and thermoelectric generator (TEGs) into rechargeable power sources, such as Li-Ion batteries and thin film batteries. At the same time, it supplies the system with two different regulated voltages, the charging voltage and the system supply voltage.

e-peas is a startup based in Liège, Belgium. It works towards solutions to extend batteries life-time for IoT applications, by increasing the amount of harvested energy and reducing power consumption for each element in the system.

AEM10940 Block Diagram
AEM10940 Block Diagram

The AEM10940 features are:

  • Ultra low power start-up, which gives it the ability to operate with just 380 mV input voltages and 1 μW input power.
  • Ultra-low-power Boost regulator, whit operates with input voltages in a range of 100 mV to 2.5 V.
  • Integrated Low Drop-Out (LDO) regulator, drives a microcontroller at 1.8 V with up to 10 mA load current at low voltage supply, and drives a radio transceiver at configurable voltage from 2.2 V to 4.2 V with 80 mA load current.
  • Programmable overcharge and overdischarge protection
  • Suitable for any type of rechargeable battery or supercapacitor
The AEM10940 Evaluation Board
The AEM10940 Evaluation Board

e-peas introduces AEM10040 as an evaluation board that provides a laboratory-like environment for testing and analysing. It also simplifies the connections with power sources, storage elements, and the different loads. However, the evaluation board is not suitable for end-user applications.

More detailed information is reachable at the datasheet and the product official page.

OEMsecrets.com – Electronic Component Suppliers Price Comparison Search Engine

oemsecrets

There are a number of electronic component search engines in the industry, but finding the best price can often be time intensive. Quite often purchasers are simply looking to locate the most competitive price from suppliers and fast!

OEMsecrets has launched the first price comparison search engine in the electronics market.  The UK shopping site helps you to find the best prices and compare inventory availability from dozens of the industry’s largest authorised distributors. By entering a manufacturer part number, buyers can save both time and money when searching to purchase electronic components online. OEMsecrets compares prices on over 15 million electronic component products from suppliers such as Digikey, Mouser, Avnet, Arrow, Farnell, TTI, Buerklin and many more. Suppliers are categorised into authorised and non-authorised divisions for ease of use.

Buyers are able enter a quantity to find the total cost of the product, change currency and filter by region. ‘Buy Now’ links can be clicked, which sends users directly into the shopping cart of distributors ready to order. Datasheets, reference designs, images and samples from suppliers such as Texas Instruments to confirm product specifications are also accessible on the search results page. Compare prices of part number OPA333AID as an example.

The shopping site is also close to launching a price comparison BOM tool which auto selects the best prices from suppliers for hundreds of line items on a components list from authorised distributors.

For those buyers looking to save time locating components and finding the best price online, take a look at OEMsecrets.com