ADS8509IBDW

Analog To Digital Converters (ADC) Overview

The ADS8509IBDW 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 250 kS/s. The device utilizes an SPI serial interface for data communication. It supports both external and internal reference configurations, powered by analog and digital supply voltages ranging from 4.75 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 88 dB, differential nonlinearity of +/- 1 LSB, and integral nonlinearity of +/- 2 LSB. It functions within a temperature range of -40°C to +85°C and is housed in a 20-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated internal oscillator simplifies system design by eliminating the need for external clock sources.
• Daisy-chainable architecture allows multiple devices to be connected sequentially for expanded channel count applications.
• Supports flexible reference selection with options for both internal and external voltage references.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution data acquisition
• Portable instrumentation utilizing single-supply operation
• Data acquisition modules in factory automation environments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IBDW' corresponds to the industrial temperature grade (-40°C to +85°C) and SOIC-20 package configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to procurement. Ensure the ordering part number matches the required pinout and electrical specifications exactly.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 250 kSPS throughput are required for single-ended signals. It is suitable for designs needing daisy-chain capability and integrated clocking. Compare power consumption against application constraints, noting the specified power dissipation values. Ensure the system voltage aligns with the 4.75 V to 5.25 V operating range.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8509 series of 16-bit CMOS ADCs. It shares architectural similarities with other members like the ADS8508 but offers higher resolution. The IB designation indicates industrial temperature rating, while DW specifies the plastic small-outline package. It serves as a mid-performance solution between lower-speed and high-speed SAR converters.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8519IBDBR is noted as having the same pin arrangement but requires external resistors for ±10V input ranges due to internal resistance differences. Verify circuit compatibility before substitution. Other family members may offer different resolutions or speeds but require schematic review.