ADS7863IDBQG4

Analog To Digital Converters (ADC) Overview

The ADS7863IDBQG4 is a dual, simultaneous-sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features two independent 12-bit successive approximation register (SAR) converters operating at a sampling rate of 2 MSPS. The device supports 2 or 3 differential input channels and utilizes an SPI-compatible serial interface for data output. It operates on a single supply voltage ranging from 2.7 V to 5.5 V for both analog and digital domains. Key performance metrics include a signal-to-noise ratio (SNR) of 71.5 dB, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±1.25 LSB. The component is housed in a 24-pin SSOP package and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling architecture ensures precise phase alignment between the two ADC channels without inter-channel skew.

Analog To Digital Converters (ADC) Applications

• Motor control systems requiring synchronized current and voltage feedback
• Industrial process control applications with multi-channel sensor inputs
• Medical equipment utilizing high-precision signal acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the 'I' grade designation matches the required industrial temperature range of -40°C to +125°C for your application environment. Ensure the 24-SSOP package dimensions align with your PCB footprint design constraints before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of multiple signals is critical to maintain phase integrity. The 12-bit resolution and 2 MSPS speed balance precision with throughput requirements. Consider the power dissipation characteristics if thermal management is limited in the enclosure. Verify that the SPI interface timing meets the host microcontroller's clock specifications.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7863 family of dual SAR ADCs. It serves as a higher-speed variant compared to the ADS7861 (500 kSPS) and offers simultaneous sampling capabilities distinct from multiplexed ADCs. The device integrates a track-and-hold amplifier for each channel to minimize aperture jitter during conversion cycles.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7863A is a pin-compatible alternative within the same family. Verify if the A-grade specification differences meet your accuracy requirements. Other family members like the ADS7865 offer different channel configurations but may require interface adjustments.