ADS7811U/1K

Analog To Digital Converters (ADC) Overview

The ADS7811U/1K is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a sampling rate of 250 kSPS and operates with a single 5V supply, drawing 40 mW of power. The device utilizes a parallel interface for data output and accepts single-ended analog inputs. Key performance metrics include a signal-to-noise ratio (SNR) of 83 dB and a total harmonic distortion (THD) of -90 dB. It is housed in a 28-pin SOIC package and supports an operating temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 16-bit conversion capability with low power consumption suitable for battery-operated systems.
• Fast 250 kSPS sampling speed enabled by internal track-and-hold amplifier.
• Integrated on-chip reference and clock circuitry reduces external component count.
• Flexible parallel interface compatible with standard microprocessors and DSPs.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high accuracy.
• Medical instrumentation such as ECG and ultrasound devices.
• Data acquisition systems for scientific testing equipment.
• Automotive sensor interfaces demanding reliable signal conversion.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix '1K' indicates reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the supplier provides valid traceability certificates for quality assurance purposes.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring 16-bit resolution at speeds up to 250 kSPS. Compare against the ADS7811 series for pin compatibility. Consider the ADS7815 if higher throughput is needed or the ADS7805 for lower speed requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7811 family of high-speed, low-power ADCs from Texas Instruments. It shares architectural similarities with the ADS7815 but differs in sampling speed and interface optimization. The U/1K designation specifies the SOIC-28 package variant supplied in reel format for automated assembly.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7811U is a direct functional equivalent. For higher speed needs, consider the ADS7815. For lower power and slower speeds, the ADS7805 may be suitable. Verify pinout compatibility before substitution.