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ADC0820

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Technical/Catalog InformationADC08200CIMT/NOPB
VendorNational Semiconductor
CategoryIntegrated Circuits (ICs)
Number of Bits8
Package / Case24-TSSOP
Data InterfaceParallel
PackagingTube
Sampling Rate (Per Second)200M
Operating Temperature-40°C ~ 105°C
Voltage Supply SourceSingle
Number of Inputs and Type1 Single-Ended, Unipolar
Number of Converters1
Power Dissipation (Max)260mW
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names ADC08200CIMT NOPB
ADC08200CIMTNOPB
ADC08200CIMT ND
ADC08200CIMTND
ADC08200CIMT

Product Manufacturers Pack D/C
ADC0820 National Semiconductor - 83+

Pinout/Connection Diagram

 adc0820 Circuit
adc0820 Circuit
adc0820 Circuit
The basic concept involves processing an audio signal input into two components (x and y) that are phase-shifted approximately 90° relative to each other. The signals are then digitally sampled and stored in a video RAM buffer as an array of data bits. Bit locations in RAM correspond with the horizontal ( x value) and vertical (y value) positions of points to be illuminated on the TV screen. The video RAM is periodically read and erased in synchronism with video frame scanning. The resulting serial video data is combined with color burst and sync signals to generate an NTSC-compatible composite video output signal. The music vision circuit essentially converts the standard raster-scanned TV screen into an oscilloscope-type display in which horizontal and vertical positions are directly controlled by z and y signals. The 90° phase shift between the two signals generates complex and dynamic two-dimensional patterns on the TV screen when music, voice, or other audio signals are applied to the input. The audio-frequency content of the input signal determines the color of the video pattern being displayed.

General Description

By using a half-flash conversion technique, the 8-bit ADC0820 CMOS A/D offers a 1.5 µs conversion time and dissipates only 75 mW of power. The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the ADC0820 is tracked and held by the input sampling circuitry eliminating the need for an external sample-and-hold for signals moving at less than 100 mV/µs. For ease of interface to microprocessors, the ADC0820 has been designed to appear as a memory location or I/O port without the need for external interfacing logic.

Features

Built-in track-and-hold functionNo missing codesNo external clockingSingle supply-5 VDCEasy interface to all microprocessors, or operates stand-aloneLatched TRI-STATE® outputLogic inputs and outputs meet both MOS and T2L voltage level specificationsOperates ratiometrically or with any reference valueequal to or less than VCC0V to 5V analog input voltage range with single 5V supplyNo zero or full-scale adjust requiredOverflow output available for cascading0.3" standard width 20-pin DIP20-pin molded chip carrier package20-pin small outline package20-pin shrink small outline package (SSOP)

Maximum Ratings

Supply Voltage (VCC)                                                           10V
Logic Control Inputs                                    −0.2V to VCC +0.2V
Voltage at Other Inputs and Output           −0.2V to VCC +0.2V
Storage Temperature Range                           −65˚C to +150˚C
Package Dissipation at TA = 25˚C                                 875 mW
Input Current at Any Pin (Note 5)                                     1 mA
Package Input Current (Note 5)                                        4 mA
ESD Susceptability (Note 9)                             &

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PDF / Datasheet

ADC0820 PDF Download

ADC0820

File Size: 267446 KB
Manufacturer: MAXIM [Maxim Integrated Products]

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