ADS8509IBDBR

Analog To Digital Converters (ADC) Overview

The ADS8509IBDBR 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 kSPS and features a serial peripheral interface (SPI). The device supports both single-ended and differential input configurations within a ±10 V range. It functions on dual power supplies: analog and digital 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. The component is housed in a 28-pin SSOP package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated internal oscillator eliminates the need for external clock generation circuitry.
• Daisy-chainable architecture allows multiple devices to be connected sequentially for expanded system capability.
• 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
• Medical instrumentation such as ultrasound and patient monitoring equipment
• Automotive sensor interfaces and engine management systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and functional equivalence. Ensure the ordering part number matches the required package type and temperature grade. Confirm RoHS compliance status through the manufacturer's current datasheet before finalizing procurement specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 16-bit resolution is required at speeds up to 250 kSPS. Consider the integrated oscillator feature if board space for external clocks is limited. Verify that the ±10 V input range aligns with the application's signal requirements without additional attenuation circuitry.

Analog To Digital Converters (ADC) Part Context

This model belongs to the ADS8509 family of precision ADCs designed for demanding industrial applications. It shares architectural similarities with other members like the ADS8519 but differs in specific internal resistor networks and input handling capabilities. The IBDBR designation indicates a specific tape-and-reel packaging variant optimized for automated surface-mount assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8519 is documented as having identical pinouts but requires external resistors for ±10 V inputs due to internal structural differences. Direct substitution requires verifying these external circuit modifications are present in the design.