ADS8556IPMR

Analog To Digital Converters (ADC) Overview

The ADS8556IPMR is a six-channel, 16-bit simultaneous sampling analog-to-digital converter (ADC) from Texas Instruments. It features a successive approximation register (SAR) architecture with a sampling rate of 630 kSPS per channel. The device operates on an analog supply voltage ranging from 4.5 V to 5.5 V and a digital supply voltage from 2.7 V to 5.5 V. It provides a signal-to-noise ratio (SNR) of 91.5 dB, with differential nonlinearity (DNL) of -1/2 LSB and integral nonlinearity (INL) of +/- 4 LSB. The component supports both parallel and serial interfaces, accepts single-ended inputs, and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling across all six channels ensures precise phase alignment for multi-phase applications.
• Integrated internal oscillator eliminates the need for external clock sources, simplifying system design.
• Daisy-chainable output structure allows multiple devices to be connected in series for expanded data throughput.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision multi-channel data acquisition
• Power quality monitoring and protection relays for electrical grid analysis
• Medical imaging equipment utilizing synchronized sensor arrays

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix 'R' indicates tape-and-reel packaging when sourcing this specific part number. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets. Ensure the ordering code matches the exact LQFP-64 package variant required for your PCB footprint. Cross-reference the manufacturer part number against current production lifecycle status to avoid obsolescence risks during long-term manufacturing.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8556IPMR when simultaneous sampling of six single-ended signals is required at 16-bit resolution. This model is suitable for designs needing an integrated oscillator and daisy-chain capability. Compare SNR and linearity specifications against alternative SAR ADCs if higher precision is necessary. Verify that the input voltage ranges and power supply requirements align with the target system's analog front-end design constraints.

Analog To Digital Converters (ADC) Part Context

The ADS8556IPMR belongs to the ADS8556 family of high-speed, low-power ADCs. It shares architectural similarities with the ADS8555 and ADS8557 but differs in channel count and sampling speed. The IPM suffix denotes the LQFP-64 package type. This component is often used in conjunction with the ADS8556EVM development kit for initial prototyping and performance validation.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8556IPMR is functionally compatible with the ADS8556IPMT, which differs only in packaging format. No direct pin-for-pin substitutes with identical specifications are publicly confirmed in standard replacement lists. Designers should verify interface timing and power requirements when considering alternative multi-channel SAR ADCs from other manufacturers.