ADS8509IDBR

Analog To Digital Converters (ADC) Overview

The ADS8509IDBR is a 16-bit, 250ksps successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single-ended input architecture and communicates via a high-speed SPI serial interface. The device operates on a single 5V supply, with both analog and digital power rails ranging from 4.75V to 5.25V. Key performance metrics include an SNR of 88dB, DNL of +/-2 LSB, and INL of +/-3 LSB for the ID variant. It integrates an internal oscillator and supports daisy-chaining. The component is housed in a 20-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 16-bit SAR ADC core with a built-in oscillator for simplified clocking requirements.
• Supports daisy-chainable operation to facilitate multi-channel data acquisition systems.
• Features a flexible serial peripheral interface (SPI) compatible with standard digital logic levels.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution signal digitization.
• Medical instrumentation equipment needing precise analog signal conversion.
• Data acquisition modules for test and measurement applications.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IDBR' against the official Texas Instruments datasheet to confirm the package type and temperature grade. Ensure the ordering part number matches the exact pinout and electrical specifications required for the design. Cross-reference with authorized distributors to validate authenticity and traceability documentation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 250ksps sampling rate are required for single-ended inputs. Compare the DNL and INL specifications against system accuracy requirements. Consider the SOIC-20 package constraints and verify that the 5V supply voltage aligns with the available power rails in the target application environment.

Analog To Digital Converters (ADC) Part Context

The ADS8509 belongs to the ADS8509 family of high-speed, low-power ADCs from Texas Instruments. This series is designed for applications demanding high accuracy and speed. The IDBR designation typically indicates a specific tape-and-reel packaging option for automated assembly, distinct from tube-packaged variants like the IDWG or IDBG.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8519 is documented as having the same pinout but requires external resistors for ±10V input ranges. Verify internal resistance differences before substitution. Other ADS8509 variants may differ only in packaging or temperature grade; confirm functional equivalence through detailed datasheet comparison.