ADS8668IDBTR

Analog To Digital Converters (ADC) Overview

The ADS8668IDBTR is a Texas Instruments 12-bit, 8-channel successive approximation register (SAR) analog-to-digital converter. It operates with an analog supply voltage ranging from 4.75 V to 5.25 V and a digital supply voltage between 1.65 V and 5.25 V. The device supports a sampling rate of 500 kSPS and features single-ended inputs. Key electrical specifications include a signal-to-noise ratio of 73.85 dB and a SINAD of 73 dB. It consumes 65 mW of power and functions within a temperature range of -40°C to +125°C. The component is housed in a 38-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated programmable gain amplifier for flexible input scaling
• Built-in oscillator eliminates the need for external clock sources
• Over-voltage protection safeguards inputs against transient conditions
• Daisy-chainable architecture simplifies multi-device system expansion

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition
• Portable instrumentation utilizing battery-powered operation
• Medical equipment demanding high-resolution signal conversion
• Factory automation and monitoring applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix IDBTR confirms the tape-and-reel packaging format upon purchase. Ensure compatibility with the required 38-pin TSSOP footprint during PCB layout. Confirm that the selected variant meets all necessary environmental certifications for the intended deployment region. Cross-reference the manufacturer's latest datasheet to validate current production status and any potential design changes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when eight single-ended channels are required at 12-bit resolution. The integrated PGA reduces the need for external amplification circuitry. Verify that the 500 kSPS throughput aligns with the application's bandwidth requirements. Consider the wide digital supply range if interfacing with various logic levels without additional level shifters.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8668 family of SAR ADCs from Texas Instruments. It shares architectural similarities with other members like the ADS8688 but offers lower resolution. The family is designed for precision data acquisition tasks. The IDBTR suffix specifically denotes the surface-mount reel packaging variant used for automated assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8668IDBT serves as a tube-packaged alternative with identical electrical characteristics. For higher resolution needs, the ADS8688 series provides 16-bit performance. Lower channel count options exist within the same family for simplified designs.