ADS8504IBDW

Analog To Digital Converters (ADC) Overview

The ADS8504IBDW is a single-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates on a single 5-V supply with voltage ranges of 4.75 V to 5.25 V for both analog and digital domains. The device features a parallel interface and supports sampling rates up to 250 kS/s. Key performance metrics include a signal-to-noise ratio (SNR) of 73 dB, differential nonlinearity (DNL) of ±0.45 LSB, and integral nonlinearity (INL) of ±0.45 LSB. It utilizes an internal or external reference source and is housed in a 28-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated CMOS structure combining SAR ADC, sample-and-hold circuit, reference source, clock, and microprocessor interface
• Standard ±10-V input range capability for versatile signal acquisition
• Oscillator included within the device architecture
• Triple-state output drivers for efficient data transfer

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Data acquisition systems
• Digital signal processing applications
• Medical equipment instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IBDW corresponds to the industrial temperature range (-40°C to +85°C) and SOIC-28 package configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure power supply decoupling meets the specified requirements for optimal SNR performance at 250 kS/s sampling rates.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution with high linearity (±0.45 LSB INL/DNL) is required alongside a parallel interface. It is suitable for applications needing a wide ±10-V input range without external scaling. Consider alternative models like the ADS8508 if an SPI interface is preferred over parallel connectivity while maintaining similar speed and resolution characteristics.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8504 series of high-speed, low-power CMOS ADCs from Texas Instruments. It is designed for applications requiring precise analog-to-digital conversion with minimal external components. The device integrates essential functions typically found in discrete solutions, simplifying board layout and reducing system complexity for industrial and medical designs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8508IBDW offers similar 12-bit performance but uses an SPI serial interface instead of parallel. Verify pin compatibility and software driver changes if substituting between these variants.