ADS8887IDRCR

Analog To Digital Converters (ADC) Overview

The ADS8887IDRCR is an 18-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single truly differential input channel and operates at a sampling rate of 100 kSPS. The device utilizes a serial peripheral interface (SPI) for data communication and supports daisy-chain configurations. It functions with an analog supply voltage range of 2.7 V to 3.6 V and a digital supply voltage range of 1.65 V to 3.6 V. Key performance metrics include a signal-to-noise ratio (SNR) of 100 dB and a signal-to-noise and distortion ratio (SINAD) of 99.9 dB. Power consumption is optimized at 700 µW, scaling proportionally with speed. The component is housed in a VSON-10 package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Offers 18-bit resolution with true differential inputs for high accuracy without external signal scaling.
• Features microPower architecture where power consumption scales directly with sampling speed.
• Supports SPI-compatible serial interface with daisy-chain capability for multi-device systems.
• Includes an internal oscillator and occupies a miniature footprint suitable for space-constrained designs.

Analog To Digital Converters (ADC) Applications

• Battery-powered instrumentation requiring low power consumption
• Portable medical devices such as ECG monitors
• Industrial process control systems
• Data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IDRCR corresponds to the VSON-10 package and reel packaging configuration. Confirm that the required operating temperature range covers the intended application environment from -40°C to +85°C. Ensure the system design accommodates the external reference voltage requirement, as this device does not contain an internal reference. Validate SPI timing parameters against the host controller capabilities.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS8887IDRCR when 18-bit resolution and true differential inputs are necessary for precision applications. Choose this model over higher-speed variants like the ADS8881 if lower power consumption is prioritized over throughput. Consider the VSON-10 package constraints during PCB layout. Verify compatibility with the system's available supply voltages, specifically the 1.65 V to 3.6 V digital domain.

Analog To Digital Converters (ADC) Part Context

The ADS8887IDRCR belongs to the Texas Instruments ADS888x family of 18-bit SAR ADCs. This series is designed for low-power, high-precision applications. The IDRCR suffix indicates the industrial temperature grade and the specific VSON-10 tape-and-reel packaging format. It shares architectural similarities with other members of the family but differs in sampling rates and pinout configurations depending on the specific base model.

Analog To Digital Converters (ADC) Replacement Considerations

ADS8887IDGS: Same electrical specifications but in MSOP-10 tube packaging. ADS8887IDGSR: Same electrical specifications but in MSOP-10 tape-and-reel packaging. ADS8885IDRCR: Higher speed variant (400 kSPS) with identical package and pinout. ADS8881IDRCR: Higher speed variant (1 MSPS) with identical package and pinout.