ADS8685IPWR

Analog To Digital Converters (ADC) Overview

The ADS8685IPWR is a 16-bit, single-channel successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates at a sampling rate of 500 kSPS and features an integrated analog front-end with a programmable gain amplifier. The device supports both differential and single-ended inputs, offering software-selectable bipolar ranges from ±2.56 V to ±10.24 V and unipolar ranges up to 10.24 V. It utilizes a single 5 V analog supply and a digital I/O supply ranging from 1.65 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 80.4 dB, spurious-free dynamic range of 109 dB, and a maximum integral nonlinearity of 0.8 LSB. The component is housed in a 16-pin TSSOP package and functions within an industrial temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated analog front-end with high input impedance and overvoltage protection up to ±20 V
• Software-programmable input ranges for flexible signal conditioning without external components
• SPI-compatible serial interface supporting daisy-chaining for multi-device systems

Analog To Digital Converters (ADC) Applications

• Industrial process control and automation data acquisition systems
• Semiconductor test equipment requiring high-precision voltage measurement
• Servo drive and motor control modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IPWR against the manufacturer's official datasheet to confirm the 16-TSSOP package and tape-and-reel shipping configuration. Ensure that the ordering information matches the exact electrical specifications required for the target application, as variations in suffixes may indicate different packaging or testing grades.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 16-bit resolution with 500 kSPS throughput is required. It is suitable for applications needing integrated signal conditioning and overvoltage protection. Compare against the ADS8681 for higher speed or ADS8689 for lower power consumption if the 500 kSPS rate exceeds system requirements.

Analog To Digital Converters (ADC) Part Context

The ADS8685IPWR belongs to the ADS868x family of integrated data acquisition systems from Texas Instruments. This series combines a SAR ADC with an analog front-end and a precision on-chip reference. The family shares common architectural features but differs in sampling rates, channel counts, and package options to address various industrial and instrumentation needs.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8685IPW serves as the leaded equivalent to the WRUMR variant. For pin-compatible alternatives within the same family, consider the ADS8681 for increased speed or the ADS8689 for reduced power usage, provided the sampling rate and channel count remain compatible.