ADS8505IDWG4

Analog To Digital Converters (ADC) Overview

The ADS8505IDWG4 is a 16-bit, 250-kSPS successive approximation register (SAR) analog-to-digital converter from Texas Instruments. It features a single-ended ±10-V input range and operates on a single +5-V supply with typical power dissipation of 70 mW at full speed. The device integrates an internal 2.5-V reference, sample/hold circuit, clock, and 3-state parallel output drivers. It supports both internal and external reference configurations. The ID suffix indicates ±4 LSB INL and ±2 LSB DNL accuracy, while the DWG4 suffix denotes a 28-pin SOIC package with lead-free construction.

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 data output with 3-state drivers

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'DW' corresponds to the 28-pin SOIC package and 'G4' indicates lead-free compliance. Confirm that the 'I' grade meets the required integral nonlinearity specifications for the application. Ensure the design accommodates the specified industrial temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed, 16-bit SAR ADC with a wide ±10-V input range is required. Compare against the ADS8509 if a serial interface is preferred instead of parallel. Consider the ADS7805 if lower sampling rates are sufficient and cost reduction is prioritized. Verify power supply requirements match the single +5-V specification.

Analog To Digital Converters (ADC) Part Context

The ADS8505 belongs to the ADS8505 family of 16-bit CMOS ADCs. It is pin-compatible with the lower-speed ADS7805 and the 12-bit ADS8504/ADS7804. The device is designed for microprocessor interfaces and offers industry-standard input ranges without requiring dual supplies.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8505IBDW is the non-lead-free equivalent with identical electrical characteristics. For serial interface applications, the ADS8509 series serves as a functional alternative within the same family.