ADS7809U/1KE4

Analog To Digital Converters (ADC) Overview

The ADS7809U/1KE4 is a 16-bit CMOS sampling Analog-to-Digital Converter (ADC) manufactured by Texas Instruments. It features a Successive Approximation Register (SAR) architecture with an integrated sample-and-hold circuit, reference, and clock. The device operates on a single +5V supply and supports a throughput rate of 100kHz. It provides six specified input ranges including ±10V and 0V to 5V via laser-trimmed scaling resistors. Key electrical specifications include a Signal-to-Noise and Distortion Ratio (SINAD) of 86dB at a 20kHz input frequency, ±2LSB Integral Non-Linearity (INL), and no missing codes across the full 16-bit resolution. Power dissipation is limited to 100mW maximum.

Analog To Digital Converters (ADC) Feature Summary

• Supports six specified analog input ranges including bipolar and unipolar configurations using internal scaling resistors.
• Provides flexible serial data output compatible with both internal and external clock modes for DSP synchronization.
• Integrates an internal voltage reference or allows connection to an external reference source.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution signal acquisition.
• Data acquisition systems utilizing standard DSP processors.
• Precision measurement equipment operating within industrial temperature ranges.

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix 'E4' corresponds to the specific tape and reel packaging configuration required for automated assembly. Confirm that the component status remains active in the manufacturer's current production data before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 16-bit resolution and 100kHz sampling rate are required within a single-supply environment. Ensure the application utilizes the SOIC-20 package dimensions and accommodates the specified power dissipation limits under maximum operating conditions.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS7809 family of 16-bit ADCs from Texas Instruments. It is pin-compatible with the 12-bit ADS7808, facilitating design upgrades without altering the printed circuit board layout. The device is designed for applications demanding high accuracy and low power consumption.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7809UB serves as a pin-compatible alternative within the same series. Verify that the specific performance parameters and input range configurations of the substitute part align with the original design requirements.