ADS8861IDGSR

Analog To Digital Converters (ADC) Overview

The ADS8861IDGSR is a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Texas Instruments' microPOWER series. It features a single differential input and operates at a sampling rate of 1 MSPS. The device requires an analog supply voltage between 2.7V and 3.6V and a digital supply voltage ranging from 1.65V to 3.6V. It utilizes an external reference and communicates via a serial peripheral interface (SPI). The component is housed in a 10-VSSOP package with a surface-mount installation type and supports an operating temperature range from -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• Supports truly differential input signals for improved noise rejection
• Integrates a sample-and-hold circuit with a 1:1 ratio to the ADC core
• Enables daisy-chain connectivity for multi-channel system expansion
• Operates with low power consumption suitable for battery-powered applications

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation requiring high resolution and low power
• Industrial process control systems utilizing serial communication interfaces
• Data acquisition modules for sensor signal conditioning
• Battery-operated test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IDGSR corresponds to the 10-VSSOP package variant when sourcing. Confirm RoHS3 compliance status as indicated by manufacturer documentation. Ensure the external reference voltage matches the required input range for the selected application. Check moisture sensitivity level classifications for proper handling during assembly processes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 1 MSPS speed are required within a compact surface-mount footprint. Compare against the ADS8861IDRCT if a VSON package is preferred over the VSSOP form factor. Ensure the system design accommodates separate analog and digital supply rails due to the distinct voltage requirements. Verify SPI compatibility with the host microcontroller before finalizing the design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS8861 family of microPower SAR ADCs, designed for high-performance data acquisition tasks. It shares architectural similarities with other devices in the series but differs in packaging options such as the VSON variant. The device complements Texas Instruments' portfolio of precision data converters by offering a balance of speed, resolution, and power efficiency in a small outline package.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8861IDRCT serves as a pin-compatible alternative featuring a 10-VSON package instead of the VSSOP configuration. Both variants share identical electrical specifications and functionality. Designers should verify board space constraints and thermal performance differences between the two package types before substitution.