ADS7818EB/250G4

Analog To Digital Converters (ADC) Overview

The ADS7818EB/250G4 is a single-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a sampling rate of 500 kS/s and accepts differential input signals. The device supports both internal and external reference configurations. It functions within an analog and digital supply voltage range of 4.75 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 72 dB, differential nonlinearity of +/- 1 LSB, and integral nonlinearity of +/- 1 LSB. Power consumption is specified at 11 mW, with maximum power dissipation of 20 mW. The component is housed in an 8-VSSOP package and operates across a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-speed 500 kS/s sampling capability for rapid data acquisition
• Differential input architecture supporting precise signal measurement
• Flexible reference configuration allowing internal or external voltage references
• Low power operation suitable for battery-powered applications

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring high resolution and low power
• Industrial process control loops utilizing differential sensor inputs
• Medical equipment needing accurate analog signal digitization
• Data acquisition modules in harsh environmental conditions

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the EB variant corresponds to the correct temperature grade and packaging specification. Ensure compatibility with existing SPI interface protocols before integration. Cross-reference the datasheet revision history for any recent design changes that may affect pinout or electrical characteristics.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-speed ADC with differential input is required. The 12-bit resolution and 500 kS/s speed balance precision with throughput needs. Consider the 4.75 V to 5.25 V supply requirement against available system rails. Evaluate the 8-VSSOP package size constraints against PCB layout limitations. Compare power consumption figures against other SAR ADCs if battery life is critical.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7818 series of micro-power, high-speed ADCs from Texas Instruments. It shares architectural similarities with other devices in the family but differs in channel count and input type. The ADS7818E/250 serves as a related variant, often distinguished by specific packaging or suffix codes. Understanding the broader ADS78xx family helps in identifying compatible evaluation boards and software drivers.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7818E/250 is a documented alternative part number within the same product line. Verify pin compatibility and electrical specifications before substitution. Check for any differences in packaging or thermal performance between the G4 and non-G4 variants.