ADS7818EB/2K5G4

Analog To Digital Converters (ADC) Overview

The ADS7818EB/2K5G4 is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a single differential input channel and operates with a sampling rate of 500 kS/s. The device supports both analog and digital supply voltages ranging from 4.75 V to 5.25 V. It utilizes a serial SPI-compatible interface for data communication. Key performance metrics include a signal-to-noise ratio (SNR) of 72 dB, differential nonlinearity (DNL) of +/- 1 LSB, and integral nonlinearity (INL) of +/- 1 LSB. Power consumption is specified at 11 mW typical, with a maximum power dissipation of 20 mW. It is housed in an 8-pin VSSOP package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-speed 500 kS/s sampling capability with 12-bit resolution
• Low power consumption suitable for battery-operated applications
• Integrated internal voltage reference simplifies design
• SPI-compatible serial interface for microcontroller connectivity

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems
• Industrial process control monitoring
• Battery-powered data acquisition devices
• Medical equipment signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the complete part number including the suffix G4 to ensure RoHS compliance and lead-free status as specified by Texas Instruments. Confirm the EB subcode indicates the specific tape-and-reel packaging variant intended for high-volume surface mount assembly. Cross-reference the manufacturer's datasheet revision history to ensure compatibility with current manufacturing standards and environmental regulations before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate speed and low power is required for single-channel differential signals. The integrated reference eliminates external component count compared to variants requiring external references. Ensure the system clock requirements align with the SPI interface timing specifications. Consider the VSSOP-8 package constraints for thermal management if operating near the upper temperature limit or under continuous full-rate sampling conditions.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS7818 family of high-speed, low-power ADCs from Texas Instruments. It shares architectural similarities with the ADS7817 and ADS7822 but offers higher throughput than the latter while maintaining competitive power efficiency. The EB/2K5G4 designation specifically identifies the reel-packaged, lead-free version of the standard ADS7818EB device, positioning it within TI's portfolio of precision data converters for embedded applications.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7818E: Standard commercial grade version without the specific EB/2K5G4 packaging and compliance suffixes.