ADS8509IBDWG4

Analog To Digital Converters (ADC) Overview

The ADS8509IBDWG4 is a single-channel, 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a sampling rate of 250 kS/s and features a serial peripheral interface (SPI). The device supports single-ended inputs and functions within an analog and digital supply voltage range of 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 is housed in a 20-pin SOIC package and operates across a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated internal oscillator for clock generation
• Daisy-chainable architecture for multi-device systems
• Supports both external and internal reference configurations

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Data acquisition modules
• Medical instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the SOIC-20 package dimensions match the target PCB footprint. Ensure the operating environment stays within the specified -40°C to +85°C temperature range. Check for moisture sensitivity level requirements during storage and handling. Validate that the SPI interface timing meets the host controller specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-resolution 16-bit conversion is required at speeds up to 250 kS/s. It is suitable for applications needing a single-ended input configuration with a standard 5V supply. Consider the integrated oscillator if external clock sources are undesirable. Compare against the ADS8507 or ADS8508 if different resolution or interface options are needed.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8509 family of high-speed, low-power ADCs from Texas Instruments. It shares architectural similarities with other devices in the series but is distinguished by its 16-bit resolution and 250 kS/s throughput. The IBDWG4 designation specifies the industrial temperature grade, SOIC-20 package, and green/RoHS-compliant construction.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8509IDBG4 is a pin-compatible alternative available in a 28-SSOP package. Verify that the pinout differences between the 20-SOIC and 28-SSOP packages do not impact the existing board layout before substitution.