ADS820U/1KG4

Analog To Digital Converters (ADC) Overview

The ADS820U/1KG4 is a monolithic 10-bit, 20MHz sampling Analog-to-Digital Converter (ADC) from Texas Instruments. It utilizes a pipeline architecture with digital error correction to ensure no missing codes and low differential linearity error of 0.2LSB. The device integrates a track-and-hold circuit, internal reference, and power-down feature. It operates from a single +5V supply, accepting differential or single-ended inputs. Key electrical parameters include a 60dB Signal-to-Noise Ratio (SNR), 195mW power consumption, and a wideband track-and-hold bandwidth of 65MHz. It is housed in an SO-28 package.

Analog To Digital Converters (ADC) Feature Summary

• Pipeline A/D converter with digital error correction for excellent Nyquist differential linearity
• Integrated internal reference and track-and-hold circuit
• Low power consumption of 195mW at 20MHz sampling rate
• High SNR of 60dB and SFDR up to 77dBFS at 500kHz input

Analog To Digital Converters (ADC) Applications

• Set-top boxes
• Cable modems
• Video digitizing
• CCD imaging applications such as camcorders, copiers, scanners, and security cameras
• IF and baseband digitization

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix /1KG4 against the manufacturer's current documentation to confirm specific transport media and environmental compliance details. Ensure the SO-28 package designator matches the required PCB footprint. Confirm that the 20MHz sampling rate and 5V supply requirements align with the system design specifications before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for high-speed imaging and telecommunications applications requiring 10-bit resolution at 20MHz. It is suitable for systems needing low differential linearity error and integrated references. Consider the 6.5 clock cycle data latency and CMOS logic output compatibility when designing the digital interface. Ensure the driving circuit can support the specified common-mode voltage of 2.25V for optimal dynamic performance.

Analog To Digital Converters (ADC) Part Context

The ADS820U/1KG4 belongs to the ADS820 family of high-speed sampling ADCs. It is part of Texas Instruments' portfolio of analog-to-digital converters designed for demanding video and telecommunications environments. The device complements other high-performance data converters by offering a balance of speed, resolution, and power efficiency in a compact SO-28 package.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.