ADS8320E/250

Analog To Digital Converters (ADC) Overview

The ADS8320E/250 is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. The device features a serial interface compatible with standard SPI protocols and supports a maximum sampling rate of 100 kS/s. It accepts differential or single-ended input signals and utilizes an external reference configuration. Key performance metrics include a signal-to-noise ratio of 90 dB, a differential nonlinearity of ±2 LSB, and an integral nonlinearity of ±0.018% FSR. Power consumption is specified at 4.5 mW, with a maximum power dissipation of 8.5 mW. The component is housed in an 8-lead VSSOP package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Supports flexible input configurations including both differential and single-ended modes
• Integrates a high-speed SAR architecture for efficient data conversion
• Features low power consumption suitable for battery-operated applications
• Provides compatibility with standard serial peripheral interfaces

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation requiring high resolution and low power
• Industrial process control systems utilizing differential inputs
• Data acquisition modules for sensor interfacing
• Battery-powered measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging quantity, as indicated by the /250 designation. Ensure the external reference voltage matches the required accuracy for your application, as this component does not include an internal reference. Confirm that the system logic levels are compatible with the 2.7 V to 5.25 V operating range. Check for moisture sensitivity level requirements during storage and handling. Validate that the VSSOP-8 footprint aligns with your PCB design guidelines.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution is necessary alongside a 100 kS/s sampling rate. It is appropriate for designs requiring a wide single-supply voltage range without dual rails. Consider this part if the application demands low power consumption under 5 mW. Verify that the external reference capability fits the system architecture. Ensure the VSSOP-8 package size meets the spatial constraints of the target board.

Analog To Digital Converters (ADC) Part Context

The ADS8320 belongs to the ADS832x family of high-speed, low-power ADCs from Texas Instruments. This series is designed for applications needing precise data conversion with minimal power usage. The E/250 variant specifically denotes the commercial temperature grade and reel packaging. It shares architectural similarities with other SAR converters but distinguishes itself through its specific input flexibility and power profile.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8321 is a pin-compatible alternative offering higher sampling rates. The ADS8325 provides similar functionality with different speed characteristics. Verify pinout compatibility and software interface requirements before substituting these parts.