ADS8321E/2K5G4

Analog To Digital Converters (ADC) Overview

The ADS8321E/2K5G4 is a 16-bit high-speed micro-power sampling analog-to-digital converter manufactured by Texas Instruments. It operates on a single power supply ranging from 2.7 V to 5.5 V, with a maximum operating temperature of +85 °C and a minimum of -40 °C. The device features a throughput rate of 200 kSPS and consumes only 9 mW of power at full speed. Key electrical specifications include an input voltage noise density of 7 nV/sqrt Hz, an input bias current of 10 pA, and a typical input offset voltage of 500 µV. It utilizes a serial interface compatible with standard SPI and QSPI protocols, housed in an 8-lead MSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed successive approximation register (SAR) ADC core with a track-and-hold amplifier for accurate signal capture.
• Features a flexible serial interface that supports multiple protocol modes including standard SPI, QSPI, and Microwire compatibility.
• Designed for low-power applications with micro-power consumption characteristics suitable for battery-operated systems.

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation such as ECG and blood analysis devices
• Industrial process control and data acquisition systems
• Battery-powered measurement equipment requiring high resolution and low power

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'E/2K5G4' against the manufacturer's latest documentation to confirm packaging details and environmental compliance status. Ensure the ordering part number matches the required tape-and-reel quantity and RoHS designation before finalizing procurement orders to avoid fulfillment discrepancies.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a design requires 16-bit resolution combined with a 200 kSPS sampling rate and minimal power consumption. It is appropriate for systems interfacing with TMS320C5x processors or other microcontrollers supporting serial communication. Consider the MSOP package size constraints and the 2.7 V to 5.5 V supply range during schematic design.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS832x family of 16-bit micro-power sampling ADCs from Texas Instruments. The family includes variants like the ADS8320 and ADS8325, which share similar architectural features but may differ in specific performance metrics or pin configurations. The ADS8321E/2K5G4 represents a specific commercial grade variant within this series.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8320 and ADS8325 are documented related parts within the same product family. Verify pinout compatibility and specific electrical parameter differences before substituting these components in existing designs.