ADS8517IDWR

Analog To Digital Converters (ADC) Overview

The ADS8517IDWR is a 16-bit, 200-kSPS sampling analog-to-digital converter (ADC) from Texas Instruments. It features a successive approximation register (SAR) architecture with an internal 2.5-V reference and buffer. The device supports ±10 V, 4 V, and 5 V input ranges via high-impedance inputs. It offers both parallel and SPI-compatible serial interfaces, allowing flexible system integration. Powered by a single 4.5-V to 5.5-V analog supply and a 1.65-V to 5.5-V digital interface supply, it dissipates typically 47 mW at maximum speed. The IDWR variant specifies integral nonlinearity (INL) of ±3 LSB and differential nonlinearity (DNL) of -2/+3 LSB, packaged in a tape-and-reel SO-28 format for industrial temperature operation.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 200-kSPS throughput rate
• Integrated 2.5-V reference and buffer amplifier
• Supports ±10 V, 4 V, and 5 V analog input ranges
• Selectable parallel or SPI-compatible serial data output

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 'IDWR' suffix indicates the industrial temperature grade (-40°C to +85°C), ±3 LSB INL specification, and Tape & Reel packaging quantity of 1000 units. Confirm the SO-28 package designation matches the required PCB footprint. Ensure the ordering information aligns with the specific linearity and thermal performance requirements of the target application.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8517IDWR when a 16-bit SAR ADC with integrated reference is required for low-power applications. Choose this part over the IB version if the ±3 LSB INL specification is sufficient and cost or availability favors the standard grade. Ensure the digital interface voltage (1.65 V to 5.5 V) is compatible with the host microcontroller logic levels.

Analog To Digital Converters (ADC) Part Context

The ADS8517 family includes variants with different linearity grades and packages. The IDWR part is the industrial-grade version with ±3 LSB INL, housed in an SO-28 package and supplied in a 1000-unit tape and reel. It is pin-compatible with older 16-bit devices like the ADS7807 and ADS8507, facilitating direct upgrades in existing designs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8517IBDW and ADS8517IBPW are pin-compatible alternatives offering higher precision with ±1.5 LSB INL. Designers requiring tighter linearity specifications should consider these IB-series parts. Other package options include the TSSOP-28 (PW) for space-constrained layouts.