About: Ibrar Ayyub
Posts by Ibrar Ayyub:
TI claims zero-drift op amp first
Posted on: 30 Jul 2017
Description The OPA2188 operational amplifier uses TI proprietary auto-zeroing techniques to provide low offset voltage (25 µV, max), and near zero-drift over time and temperature. This miniature, high-precision, low quiescent current amplifier offers high input impedance and rail-to-rail output swing within 15 mV of the rails. The input common-mode range includes the negative rail. Either […]
DHT22 (AM2302) Digital Humidity and Temperature Sensor Proteus Simulation
Posted on: 30 Jul 2017
Like the DHT11, the DHT22 is a digital humidity and temperature sensor which has more benefits than DHT11 like: High precision and range. If we want to understand this topic we have to read the DHT22 datasheet and see how this device works and its characteristics. Note that the DHT22 is available only on Proteus […]
Easy IoT weather station with multiple sensors
Posted on: 30 Jul 2017
A weather station is a fun project that teaches you a ton about electronics with the added benefit being an actually useful little device. The project requires a bunch of cheap parts and sensors totaling less than $15, and the whole thing ends up fitting in your hand. The station creates a web site that […]
What is a zener diode?
Posted on: 30 Jul 2017
A tutorial on zener diodes and how to use them as voltage clamps, voltage regulators, and how to create audio distortion circuits. For more detail: What is a zener diode?
Chips make flat-panel TVs run cooler
Posted on: 29 Jul 2017
The STA381BW is an integrated solution embedding digital audio processing, digital amplification, FFXTMpower output stage, headphone and 2 Vrms line outputs. It is part of the Sound Terminal®family and provides full digital audio streaming from the source to the speaker, offering cost effectiveness, low power dissipation and sound enrichment. The STA381BW input section consists of […]
Interfacing LCD and Keypad with PIC16F877A Microcontroller
Posted on: 29 Jul 2017
Interfacing LCD and Keypad are one of the important interfacing concepts of PIC microcontroller since both the input and output element can form a complete embedded system design. This tutorial is about teaching you how to get input input values from keypad by polling method and display the input into a 16×2 LCD. 16×2 LCD: […]
150V synchronous step-down DC/DC includes surge protection
Posted on: 29 Jul 2017
Features Wide VIN Range: 4V to 140V (150V Abs Max) Wide Output Voltage Range: 0.8V to 60V Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE) Low Operating IQ: 40μA (Shutdown = 10μA) 100% Duty Cycle Operation No External Bootstrap Diode Required Selectable Gate Drive UVLO Thresholds Onboard LDO or External NMOS LDO for DRVCC EXTVCC […]
Audio streaming for 100h on two AAA cells
Posted on: 29 Jul 2017
Description nRF2460 is a highly integrated 2.4 GHz RF Mono Audio-Streamer IC. It integrates a 4 Mbps 2.4 GHz GSK radio and a protocol stack optimized specifically for mono audio streaming. The combination of 16-bit LPCM uncompressed audio quality, latency as low as 20 ms, low power operation and a low total solution cost makes […]
Microchip expands RF power amplifier portfolio
Posted on: 28 Jul 2017
The SST12LP18E is a versatile power amplifier based on the highly-reliable InGaP/GaAs HBT technology. The SST12LP18E is a 2.4 GHz high-efficiency Power Amplifier designed in compliance with IEEE 802.11b/g/n/ac applications. It typically provides 25 dB gain with 32% power-added efficiency, while meeting 802.11g spectrum mask at 21.5 dBm. The SST12LP18E can be configured for high-linearity […]
Temperature controlled fan using PIC 16F877A
Posted on: 28 Jul 2017
You might have come across several applications where we need to control a specific device based on analog parameter. This Embedded system works in a similar concept where we are about to control the speed of a DC motor using based on the external temperature. The rise in temperature will result in increase in speed […]
