ADS805U

Analog To Digital Converters (ADC) Overview

The ADS805U is a 12-bit, 20MHz sampling analog-to-digital converter manufactured by Burr-Brown (Texas Instruments). It features a throughput rate of 20 MSPS with an input voltage range of 0V to VREF. The device operates from a single +5V supply and includes an internal high-speed sampling ADC and track-and-hold amplifier. Key electrical parameters include a full-power bandwidth of 20MHz, a signal-to-noise ratio of 67dB, and an input bias current of 1mA. It utilizes a serial interface compatible with standard SPI and QSPI protocols for data output.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 20MHz sampling rate
• Single +5V power supply operation
• Internal track-and-hold amplifier
• Serial output compatible with DSPs

Analog To Digital Converters (ADC) Applications

• Portable instrumentation
• Industrial process control
• Medical equipment

Analog To Digital Converters (ADC) Part Context

The ADS805U belongs to the ADS80x family of high-speed, low-power A/D converters. The 'U' suffix denotes the SOIC-16 package variant. This component was originally produced by Burr-Brown Corporation before its acquisition by Texas Instruments. It serves as a bridge between analog signals and digital processing systems requiring moderate speed and resolution.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the ADS805E (ceramic DIP) or other variants in the ADS80x series. For modern designs, newer Texas Instruments ADCs such as the ADS8332 or ADS8412 may offer improved performance but require schematic review due to potential differences in interface timing or pinout.