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8051 / 8052
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Analog to Digital Circuits
Analog to Digital Circuits
Analog to Digital Converter with ADC0808
Normally analogue-to-digital con-verter (ADC) needs interfacing through a microprocessor to convert analogue data into digital format. This requires hardware and necessary software, resulting in increased complexity and hence the total cost. The circuit of A-to-D converter shown here is configured around ADC 0808, avoiding the use of a...
Digital Voltmeter with ICL7129ACPL A/D converter
This 4 1/2-digit DVM circuit is built around a Maxim ICL7129ACPL A/D converter and LCD driver. An ICL8069 CCZR 1.2-V band-gap reference diode is used for a voltage reference. S2a-b-c select one of four ranges up to 200 V (maximum). The meter also has a piezoelectric buzzer for continuity testing. S3 selects either DVM or continuity. Crystal 1...
Audio DAC S / PDIF (AES3) to analog
The described device is used to convert the digital signal format S / PDIF (AES3) to analog. It can be used for any device with uncompressed digital audio output (desktop CD or DVD, minidisk, sound card PC CD-ROM). Separate transmitter can improve the signal to noise ratio and reduce noise, which is especially true for the PC sound card. The...
Three Bit flash Analog to Digital Converter Circuit
The flash type converter is the simplest and the fastest type of analogue to digital converter. The entire digital output word is present just after the propagation delay time of comparators and the encoding logic gates. A typical conversion time of three bit flash analog to digital converter is 33 ns. The circuit of three bit flash analog to digi
Simple Analog to Digital Converter (ADC)
Normally analogue-to-digital con-verter (ADC) needs interfacing through a chip to catechumen alternation abstracts into agenda format. This requires accouterments and all-important software, consistent in added complication and appropriately the absolute cost. The ambit of A-to-D advocate apparent actuality is configured about ADC 0808, alienated
Analog and digital electronic thermometer with LM35
Electronic thermometer has countless applications. Not everywhere can we use the standard mercury thermometer, for example, due to its size, frailty or the need to measure from the distance. The advantage of electronic thermometers are also small size and heat capacity of probes, faster response of the digital display and elimination
51 one-chip computer ADC0804 analog to digital converter studies
It is ADC0804 to be left-handed, it is 74HC573 latch to be right hand, the latch connected the one-chip computer and has not drawn at the same time. The pin CSAD of ADC0804 is a chip selection pin because acted as effectively by the low level Hand over 0 hour, we can choose it to work. RD is that the low level is effective too, it is the read sign
analog-to-digital converters (ADCs)
analog-to-digital converters (ADCs) | printed-circuit board (PCB) | microcontroller or digital signal processor (DSP) | total-harmonic-distortion (THD) | ignal-to-noise ratio (SNR).
arduino How to make a clean amplified microphone analog to digital conversion
Hooked up an electret mic into an opamp and gave output to my arduino microcontroller. The ADC on the microcontroller converts a range of 0 to 5 vV to a 10-bit number (0 to 1023). The problem is that the output from the latter two chips is not "clean". The analogRead() on the Arduino is always reading a non-zero value even when I make no noise...
microcontroller Analog to Digital Converter and Negative Voltages
Using the ADC on an ATtiny24 to record a AC signal. The ADC has a range from 0-3. 3V. I`m using a precision rectifier to get rid of the negative portion of the signal. I`ve attached a picture of the circuit I`m using for the rectifier. I`m using an LMC6484 as the op-amp with 3. 3V to the V+ rail and 0 to the V- rail. I`m using 1N4004`s as the di
Audio Analogue to Digital Converter AD2496
The latest circuit diagram of the AD2496 is shown here. All modifacations I intended and described in the article about the prototype have been implemented. Additionally I introduced two current compensated chokes for higher EMV immunity. Not that I experienced them to be necessary, but I know about the extreme requirements of the relevant regulat
Analog to Digital Conversion
To be able to implement analog to digital conversion using the ADC0804LCN 8-bit A/D converter. You will design a circuit and program the chip so that when an analog signal is given as input, the equivalent digital voltage is displayed on an LCD display. Thus, in effect, your circuit should function like a simple voltmeter. The ability to convert a
Turning analog inputs into multi-switch digital inputs
I am interested in creating an interactive LED gameboard of some kind (or even a sort of "Stargate" DHD-type sci-fi prop!), where each square or tile is lit up from below by either a single white LED or an RGB combo. It always occurred to me that I`d love it if I could have each tile be responsive to touch. Nothing fancy, just a simple on/off...
Analog To Digital Converter
ADC is a circuit formed in a single functioning chip to change analog signal becomes digital signal. In general we apply chip ADC 8 beet to change analog signal stretch 0-5 V becomes digital level 0-255 for ADC 8 beet. At the moment have also been in big supply ADC capable to work for data process 12 bits. To do converting there are two methods. F
What is analog to digital converter ADC using LM324 IC
The process of converting an analog voltage into an equivalent digital signal is known as Analog to Digital Conversion, abbreviated as ADC. An ADC is an electronic circuit which converts its analog input to corresponding binary value. The output depends up on the coding scheme followed in the ADC circuit. For example Analog value may convert to Gra
Voltage Level Detector Circuit
The design came from the interest of finding a new technique of analog to digital conversion. The two types of ADC (Analog to Digital Converter) that inspired me in the development of this circuit are Flash Type ADC and Successive Approximation Type ADC. The Flash Type ADC is the fastest ADC available in the market (highest sampling rate 120 Msps)
Analog to Digital Converters - Successive Approximation Typeworking
Analog to Digital Converters - Successive Approximation Type Analog to Digital Converter, working,circuit diagram..
Tutorial on using ADC (Analog to Digital converter) unit of AVR micro controller
A simple tutorial on using ADC (Analog to Digital converter) unit of AVR micro controller illustrated using Atmega8 with circuit diagram & codes..
Monolithic/Hybrid Analog To Digital (A/D) Converter
The basic ANALOG TO DIGITAL (A/D) CONVERTER CIRCUIT has already been explained in an earlier post. Apart from it, there are also many types of monolithic analog to digital converters, such as the integrating A/D, integrating A/D with three-stage outputs, and the tracking A/D with latched outputs. In addition to this, the outputs of A/D are coded i
Arduino Analog Read Potentiometer to Digital Out LED
The analog to digital sketches have been covered a million ways from Sunday with every conceivable part but in order for us to move on to more complex circuits and concepts I need to be sure you know these simpler ones. This tutorial wont be quite as in depth as the others because frankly there just isn`t much code. Without further delay I give yo
555 Timer as an Analog to Digital Converter
This 555 timer based circuit is a kind of voltmeter, also an analog to digital converter, that converts the analog input voltage to digital output pulses
4-Bit Analog to Digital Converter
The operation of the converter is based on the weighted adding and transferring of the analogue input levels and the digital output levels. It consists of..
Analog to Digital Conversion and Communicating with a PC through the Serial Port
Data Collection - Analog to Digital Conversion and Communicating with a PC through the Serial Port Microcontroller Advanced Kit..
Analogue to Digital Converter
This circuit is a simple 8-bit analogue to digital converter circuit which is connects to PC serial port. The circuit is based on TLC548 A/D-converter chip (might be hard to get nowadays, Texas Instruments makes this IC), which is an A/D-converter with serial output. The output of the TLC548 is not directly suitable for standard serial data recept
Mixed Analog/Digital Design Using Split Power, Ground Planes The next example shows how to design a circuit with a mixture of analog and digital parts with multiple power planes and with a single ground plane split into analog and digital sections that have a common reference point. Learn more about Example 2: Mixed Analog/Digital Design Using...
TYPES OF ANALOG-TO-DIGITAL CONVERTERS
Analog-to-digital converters are classified into one-step architectures, such as: flash, folding and interpolative topologies, and multi-step architectures, such as: Successive approximation and pipeline topologies. The flash architecture is potentially the fastest analog-to-digital converter, because of the parallelism it employs. However, this p
MIXED ANALOG/DIGITAL DESIGN USING SPLIT POWER GROUND PLANES
This example shows how to design a circuit with a mixture of analog and digital parts, multiple power planes, and a single Ground plane split into analog and digital sections that have a common reference point..
Analog to Digital Conversion Notes
Analog and Digital Converters
4-Bit Analogue to Digital Converter
The operation of the converter is based on the weighted adding and transferring of the analogue input levels and the digital output levels. It consists of comparators and resistors. In theory, the number of bits is unlimited, but each bit needs a comparator and several coupling resistors. The diagram shows a 4-bit version. The value of the resisto
Low Cost Analog to Digital circuit
Collecting and storing experimental data is a common challenge for hobbyists. A popular approach is to use a device for converting analog data into digital data and storing the information on a computer. These devices are called A/D converters: an abbreviation for analog to digital. There is a wide variation in prices for A/D converters and most a
Two-channel Analog-to-Digital converter board with USB interface
build an interface board to connect some scientific equipment (for me, a pair of photovoltaic tubes) to a personal computer to acquire measurements results. Signal properties were following: two channels with a common ground, 1 second of acquisition time, max 10V signal level. Desired digitizing properties were about 1000 samples per...
Digital to Analog Circuits
Data Logging Circuits
Data Bus Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
DIY HV Variable Capacitor
DIY PMA Alternator Plans
Digital Signal Integrity