ADS8695IPW

Analog To Digital Converters (ADC) Overview

The ADS8695IPW is an 18-bit, single-channel Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) manufactured by Texas Instruments. It operates with a sampling rate of 500 kSPS and features a Single-Ended input type. The device utilizes a TSSOP-16 package for surface mount installation. Electrical specifications include an analog supply voltage range of 4.75 V to 5.25 V and a digital I/O supply range of 1.65 V to 5.25 V. Key performance metrics comprise a Signal-to-Noise Ratio (SNR) of 92.5 dB, Differential Non-Linearity (DNL) of 0.6 LSB, and Integral Non-Linearity (INL) of 1.5 LSB. The component supports SPI interface communication and functions within an extended industrial temperature range from -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated programmable gain amplifier (PGA) enabling software-selectable bipolar and unipolar input ranges without external components.
• Built-in over-voltage protection capable of withstanding input voltages up to ±20 V, safeguarding the analog front-end.
• On-chip low-drift 4.096 V reference oscillator eliminates the need for external precision voltage references in many applications.

Analog To Digital Converters (ADC) Applications

• Channel-isolated PLC analog input modules
• High-precision test and measurement equipment
• Industrial process control systems requiring high-resolution data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IPW' corresponds to the TSSOP-16 tube packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the ordering part number matches the required pinout and thermal characteristics for the target PCB layout design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 18-bit resolution and 500 kSPS throughput are required for single-ended signals. Consider alternatives like the ADS8691 for higher speed (1 MSPS) or ADS8699 for lower power consumption if system constraints differ. Verify that the constant resistive input impedance and bipolar/unipolar range flexibility meet the sensor interface requirements.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS869x family of 18-bit SAR ADCs, which share common architectural features such as the integrated analog front-end and MultiSPI interface. While variants like ADS8691 and ADS8699 offer different sampling rates, the ADS8695 specifically targets applications balancing high speed with high resolution. All members utilize similar pinouts and software compatibility within the series.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes within the same family include ADS8691IPW (1 MSPS) and ADS8699IPWR (100 kSPS). Verify pin compatibility and software register settings when swapping between these variants. External component values may require adjustment due to differences in bandwidth and settling time characteristics among the family members.