ADS8555SPMR

Analog To Digital Converters (ADC) Overview

The ADS8555SPMR is a six-channel, 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features true bipolar inputs and simultaneous sampling capabilities via integrated sample-and-hold circuits. The device supports data rates up to 630 kS/s in parallel mode or 450 kS/s in serial mode. It operates with an analog supply voltage of 4.5 V to 5.5 V and a digital supply of 2.7 V to 5.5 V. Key performance metrics include a signal-to-noise ratio of 91.5 dB and a total harmonic distortion of -94 dB. The component is housed in an LQFP-64 package and functions within an extended industrial temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Six SAR ADCs grouped in three pairs for simultaneous multi-channel acquisition
• Pin-selectable or programmable input voltage ranges up to ±12 V
• Programmable and buffered internal reference options
• Comprehensive power-down modes including deep power down and auto-nap

Analog To Digital Converters (ADC) Applications

• Power quality measurements
• Protection relays
• Multi-axis motor controls
• Programmable logic controllers
• Industrial data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix 'SPMR' indicates the tape and reel packaging variant of the ADS8555. Confirm that the specific ordering part number matches the required quantity per reel and ensure compatibility with standard SMD/SMT assembly processes. Check RoHS compliance status and moisture sensitivity levels before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-speed, simultaneous sampling of six channels is required with 16-bit resolution. It is suitable for applications demanding low power consumption and flexible interface options between parallel and serial modes. Ensure the system design accommodates the specified analog and digital voltage requirements.

Analog To Digital Converters (ADC) Part Context

The ADS8555 belongs to the ADS855x family of high-performance, low-power ADCs from Texas Instruments. This series is designed for industrial applications requiring precise multi-channel signal processing. The device integrates multiple SAR converters on a single chip to reduce board space and simplify system architecture.

Analog To Digital Converters (ADC) Replacement Considerations

Compatible alternatives within the same family include the ADS8556, ADS8557, and ADS8558. These variants offer different resolutions such as 14-bit or 12-bit while maintaining similar pinouts and functionality. Verify interface compatibility and resolution requirements when substituting.