Sample and Hold Circuit

Sample and Hold Circuit: Four basic sample and hold circuit are shown in Fig. 14.141. In these circuits a JFET is used as switch. During the sampling time the JFET…

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Sample and Hold IC

Sample and Hold IC: Sample and Hold IC - For accurate analog to digital conversion the analog input voltage should be held constant during the conversion cycle. If the analog…

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IC 7109 Features

IC 7109 Features: The IC 7109 Features are namely, IC 7109 is a 12-bit dual slope A/D converter. It has polarity and overrange bits. It has byte organized TTL compatible…

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ADC0808 Pin Diagram

ADC0808 Pin Diagram: The ADC0808 Pin Diagram and ADC 0809 are monolithic CMOS devices with an 8-channel multiplexer. These devices are also designed to operate from common microprocessor control buses,…

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ADC0804 Family

ADC0804 Family: The ADC0804 Family are ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive-approximation analog to digital converters. These devices are design to operate from common microprocessor control buses, with…

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DAC0830 Digital to Analog Converter

DAC0830 Digital to Analog Converter: The DAC0830 Digital to Analog Converter is an advanced CMOS 8-bit DAC designed to interface directly with the 8080, 8048, 8085, Z80, and other popular…

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IC 1408 DAC Pin Diagram

IC 1408 DAC Pin Diagram: The IC 1408 DAC Pin Diagram is an 8 bit R/2R ladder type D/A converter compatible with TTL and CMOS logic. It is designed to…

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8279 Keyboard Display Controller Interfacing with 8085

8279 Keyboard Display Controller Interfacing with 8085: Fig. 14.98 shows the 8279 Keyboard Display Controller Interfacing with 8085 in I/O mapped I/O technique. Here RD and WR signals are activated…

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Operating Modes of 8279

Operating Modes of 8279: The Operating Modes of 8279 provides 3 basic input modes : Scanned keyboard Scanned sensor matrix Strobed input Scanned Keyboard: In this mode, keyboard can be…

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8279 Block Diagram

8279 Block Diagram: Fig. 14.84 shows the 8279 Block Diagram. It consists of four main sections CPU interface and control section Scan section 8279 Keyboard section Display section 1.CPU Interface…

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