ADS7809U/1K

Analog To Digital Converters (ADC) Overview

The ADS7809U/1K is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single-ended input architecture and operates with a sampling rate of 100 kS/s. The device utilizes a serial interface for data output and supports both external and internal reference configurations. It functions within an analog and digital supply voltage range of 4.75 V to 5.25 V, consuming approximately 81.5 mW of power. Key performance metrics include a signal-to-noise ratio of 88 dB and a signal-to-noise and distortion ratio of 88 dB. Differential nonlinearity is specified at -2/3 LSB, while integral nonlinearity is +/- 3 LSB. The component is housed in a 20-pin SOIC package and is rated for operation between -40°C and +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 16-bit conversion capability using SAR architecture
• Serial interface compatibility for simplified system integration
• Flexible reference options supporting both external and internal modes

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high precision
• Data acquisition modules for sensor interfacing
• Medical instrumentation equipment demanding low noise performance

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix '1K' indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the SOIC-20 footprint matches the target PCB layout design constraints. Validate that the operating temperature range meets the environmental requirements of the final assembly application.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring 16-bit resolution with moderate speed. Consider the serial interface if pin count reduction is necessary compared to parallel alternatives. Evaluate the power consumption against thermal management capabilities. Compare SNR specifications with other SAR ADCs if noise performance is critical for the signal chain integrity.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7809 series of high-speed, low-power ADCs from Texas Instruments. It shares architectural similarities with other devices in the family but offers specific resolution and interface characteristics. The U/1K designation identifies the specific package type and tape-and-reel quantity configuration provided by the manufacturer for surface mount assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7808UBG4 is a related 12-bit variant within the same product family. Verify interface compatibility and resolution differences when substituting. Check for availability status as some variants may be discontinued or have limited stock.