ADS8674IDBTR

Analog To Digital Converters (ADC) Overview

The ADS8674IDBTR is a quad-channel, 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a maximum sampling rate of 500 kSPS and features an SPI-compatible digital interface. The device utilizes a single 5 V analog supply and a 1.65 V to 5.25 V digital supply. Key electrical specifications include a signal-to-noise ratio of 85 dB, differential nonlinearity of 0.5 LSB, and integral nonlinearity of 0.75 LSB. It incorporates an internal 4.096 V reference and supports daisy-chaining. The component is housed in a 38-pin TSSOP package and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated programmable gain amplifier for flexible input scaling
• Internal voltage reference eliminates external components
• Daisy-chainable architecture simplifies multi-device systems

Analog To Digital Converters (ADC) Applications

• Industrial process control data acquisition
• Medical instrumentation signal conditioning
• Portable test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'DBTR' corresponds to the tape-and-reel packaging format required for automated assembly. Confirm that the operating environment remains within the specified -40°C to +125°C thermal limits. Ensure the PCB layout accommodates the 38-pin TSSOP footprint dimensions accurately to maintain signal integrity and mechanical stability during soldering processes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four synchronized channels are required at 14-bit resolution. The internal PGA allows adaptation to varying input signal amplitudes without external amplifiers. Consider the 500 kSPS throughput limit against system bandwidth requirements. Verify compatibility with the host microcontroller's SPI clock speeds and voltage levels before integration into the design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS867x family of high-speed, low-power SAR ADCs. It shares architectural similarities with the ADS8678 but differs in channel count and pin configuration. The IDBTR designation indicates the industrial temperature grade and reel packaging variant, distinguishing it from tube-packaged or commercial-grade alternatives within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8674IDBT serves as the tube-packaged equivalent of this reel-based component. Designers requiring identical electrical performance but different packaging should verify pinout compatibility. No direct functional substitutes exist within the provided documentation; alternative parts require separate validation of interface and timing parameters.