ADS8505IBDBR

Analog To Digital Converters (ADC) Overview

The ADS8505IBDBR is a 16-bit, 250-kSPS CMOS successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates from a single +5-V supply with typical power dissipation of 70 mW at full sampling rate. The device features a standard ±10-V input range, internal or external reference options, and a full parallel data output interface with three-state drivers. It is housed in a 28-pin SSOP package and specified for operation over the industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 250-kSPS throughput rate
• Standard ±10-V single-ended input range
• Internal 2.5-V reference or external reference capability
• Full parallel 16-bit data output with three-state drivers

Analog To Digital Converters (ADC) Applications

• Industrial process control
• Data acquisition systems
• Medical equipment
• Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'R' suffix indicates tape-and-reel packaging containing 2000 units per reel. Confirm the 'I' grade specifies ±1.5 LSB max INL and ±1 LSB max DNL. Ensure the SSOP-28 package matches the design footprint. Check RoHS compliance status as detailed in the manufacturer's documentation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit SAR ADC with a parallel interface is required. The ADS8505 supports both internal and external references; an external buffer may be needed if the CAP pin drives loads exceeding 2 mA. For applications requiring lower speed, it is pin-compatible with the ADS7805. Ensure the system provides a clean +5-V analog supply to minimize digital switching noise impact.

Analog To Digital Converters (ADC) Part Context

The ADS8505 belongs to the ADS8505 family of high-speed, precision ADCs. It shares architectural similarities with the ADS8519 but differs in interface type, using a parallel bus instead of SPI. The IBDBR variant specifically denotes the industrial grade performance specifications within the SSOP-28 tape-and-reel format.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8505IBDWR is the SOIC-28 equivalent with identical electrical characteristics. The ADS7805 offers pin compatibility but operates at a lower sampling rate. Cross-reference with other 16-bit parallel SAR ADCs if interface flexibility is required.