ADS8517IDW

Analog To Digital Converters (ADC) Overview

The ADS8517IDW is a 16-bit, 200-kSPS sampling analog-to-digital converter (ADC) from Texas Instruments. It features a capacitor-based successive approximation register (SAR) architecture with an integrated sample-and-hold, clock, and reference. The device operates on a single 4.5-V to 5.5-V analog supply and supports a 1.65-V to 5.5-V digital interface. It offers ±10 V, 4 V, and 5 V input ranges with high-impedance inputs capable of withstanding ±25 V overvoltage. Key performance metrics include a maximum integral nonlinearity (INL) of ±3 LSB, a signal-to-noise and distortion ratio (SINAD) of 85 dB at 10 kHz input, and low power dissipation of 60 mW maximum at full speed.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 200-kSPS throughput rate
• Integrated 2.5-V internal reference or external reference capability
• Flexible parallel and SPI-compatible serial data interfaces
• High-impedance analog inputs supporting ±10 V, 4 V, and 5 V ranges

Analog To Digital Converters (ADC) Applications

• Portable test equipment
• USB data acquisition modules
• Medical equipment
• Industrial process control
• Digital signal processing systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the SO-28 package and tube transport media as listed in the manufacturer's ordering information. Confirm that the 'I' grade designation meets the required linearity specifications for the application, noting the distinction between the standard I grade and the higher-performance IB grade.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8517IDW when a 16-bit resolution and 200-kSPS sampling rate are required within a single-supply system. Ensure the design accommodates the specified analog supply range of 4.5 V to 5.5 V and digital interface voltage of 1.65 V to 5.5 V. Consider the pin-compatible alternatives such as the ADS8507 or ADS7807 if different sampling rates or bit resolutions better suit the system constraints.

Analog To Digital Converters (ADC) Part Context

The ADS8517 belongs to the ADS8517 family of low-power, high-speed SAR ADCs. It is designed to replace older generation devices while offering improved performance. The IDW variant specifically denotes the industrial temperature range (-40°C to +85°C) and the SO-28 surface-mount package. It shares architectural similarities with other members of the series but is distinct in its specific electrical characteristics and interface options.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8517 is pin-compatible with the 16-bit ADS8507 and ADS7807, as well as the 12-bit ADS8506 and ADS7806. Designers upgrading from these parts should verify that the new sampling rate and interface requirements align with the system design.