ADS7818E/250G4

Analog To Digital Converters (ADC) Overview

The ADS7818E/250G4 is a monolithic 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a high-speed sampling rate of 500 kSPS and operates with a single 5V supply. The device integrates a low-power, high-bandwidth track-and-hold amplifier and a precision ADC core. It utilizes a serial interface compatible with standard SPI and QSPI protocols for data output. The component is housed in an 8-lead VSSOP package and supports operation across an industrial temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed track-and-hold amplifier with a 12-bit SAR ADC core for efficient signal acquisition.
• Supports flexible digital interfacing through compatibility with standard SPI and QSPI communication protocols.
• Operates efficiently on a single 5V power supply, simplifying system design and power management.

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring high resolution and moderate speed.
• Industrial process control loops utilizing differential input signals.
• Medical equipment applications demanding low power consumption and accuracy.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance when sourcing components. Confirm the tape and reel quantity matches the required /250 designation during procurement. Ensure the supplier provides original manufacturer documentation to validate authenticity. Check for moisture sensitivity level requirements prior to soldering processes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel differential input is required alongside a 500 kSPS sampling rate. Compare against the ADS7816 if lower speed is acceptable or the ADS7819 if higher throughput is needed. Ensure the system voltage aligns with the specified 5V single-supply requirement. Verify that the serial interface timing meets the microcontroller or DSP capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS781x family of 12-bit SAR ADCs from Texas Instruments. The family includes variants such as the ADS7816, ADS7818, and ADS7819, which differ primarily in sampling speed and pinout configurations. The ADS7818 specifically targets applications balancing speed and power efficiency within a compact footprint.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7818E/250 is listed as an alias for this component. Verify pin compatibility before substituting with other ADS781x family members. Cross-reference datasheets for any differences in serial interface timing or reference voltage specifications.