ADS7834E/2K5G4

Analog To Digital Converters (ADC) Overview

The ADS7834E/2K5G4 is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single differential input channel and operates with an SPI-compatible serial interface. The device supports sampling rates up to 500 kS/s while maintaining low power consumption of 11 mW at maximum speed. It requires dual supply voltages for analog and digital sections, both ranging from 4.75 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 72 dB, differential nonlinearity of ±0.8 LSB, and integral nonlinearity of ±2 LSB. The component is housed in an 8-pin VSSOP package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal voltage reference to simplify external circuit design.
• Supports high-speed data acquisition with a sampling rate of 500 kS/s.
• Utilizes a standard SPI serial interface for straightforward microcontroller connectivity.
• Offers low power dissipation suitable for battery-operated applications.

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring high resolution and low power.
• Industrial process control loops utilizing differential signal inputs.
• Data acquisition modules in automated testing equipment.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free manufacturing status as per Texas Instruments documentation. Confirm the /2K5 designation corresponds to the specified reel packaging quantity. Ensure the source document explicitly lists this exact part number to avoid confusion with similar ADS7834 variants that may have different electrical characteristics or pin configurations.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 12-bit resolution ADC is required with a 500 kS/s throughput. It is appropriate for designs needing a built-in reference to reduce board space. Compare against the ADS7834E/250 for identical electrical performance but different packaging options. Consider the ADS7817 if lower power consumption is prioritized over higher sampling speed.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7834 family of high-speed, low-power SAR ADCs from Texas Instruments. The family includes variants such as the ADS7834E/250 and ADS7834EVM evaluation module. These devices are designed for applications demanding precise analog-to-digital conversion with minimal power usage. The E/2K5G4 variant specifically denotes the commercial grade temperature range and specific packaging configuration.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7834E/250 serves as a direct functional substitute with identical electrical specifications. Verify package compatibility between VSSOP-8 and alternative packages like SOIC-8 used in other family members. Cross-reference datasheets to ensure interface timing and power supply requirements remain consistent across potential replacement parts.