ADS8505IDBR

Analog To Digital Converters (ADC) Overview

The Texas Instruments ADS8505IDBR is a 16-bit, 250-kSPS successive approximation register (SAR) analog-to-digital converter. It features a single-ended ±10-V input range and operates from 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, and clock logic. It provides a full parallel data output via three-state drivers in binary 2's complement format. The ADS8505IDBR is specified for operation over the industrial temperature range of –40°C to +85°C and is housed in a 28-pin SSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 250-kSPS throughput rate
• Standard ±10-V single-ended input range with 11.5-kΩ impedance
• Internal 2.5-V reference or external reference capability (2.3 V to 2.7 V)
• Full parallel 16-bit data output with BYTE pin for byte-select reading

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix 'R' corresponds to the tape and reel packaging configuration as defined in the manufacturer's package ordering information. Confirm the specific accuracy grade ('I' vs 'B') matches the required linearity specifications, as the datasheet lists distinct INL/DNL limits for different grades within the same package type.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed 16-bit conversion is required with a standard ±10-V input range. Ensure the system can accommodate a parallel interface and a single +5-V supply. Consider the internal reference drift if high precision is needed without external calibration; an external reference may be preferred for improved stability.

Analog To Digital Converters (ADC) Part Context

The ADS8505IDBR belongs to the ADS8505 family of 16-bit sampling ADCs. It is pin-compatible with the lower-speed ADS7805 and the 12-bit ADS8504/7804 variants, facilitating design upgrades or downgrades within the same footprint while maintaining interface compatibility.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.