ADS7835E/2K5G4

Analog To Digital Converters (ADC) Overview

The ADS7835E/2K5G4 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 supports both internal and external reference configurations. The device accepts single-ended inputs and communicates via an SPI-compatible serial interface. 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 ±0.8 LSB, and integral nonlinearity of ±2 LSB. Power consumption is specified at 17.5 mW typical, with a maximum power dissipation of 30 mW. It is housed in an 8-pin VSSOP package and rated for operation between -40°C and +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-speed 12-bit resolution with 500 kS/s sampling capability
• Integrated internal voltage reference option
• Low-power SAR architecture suitable for battery applications
• SPI-compatible serial interface for microcontroller integration

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free status as per manufacturer standards. Confirm the E/2K5 designation corresponds to the correct temperature grade and tape-and-reel packaging quantity. Ensure compatibility with existing PCB footprints for the VSSOP-8 package during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-speed 12-bit ADC is required with low power constraints. Consider the internal reference feature if board space for external references is limited. Verify that the single-ended input configuration meets system requirements, as differential inputs are not supported. Ensure the SPI interface timing aligns with the host processor capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7835 family of low-power, high-speed SAR ADCs from Texas Instruments. It shares architectural similarities with other members like the ADS7817 and ADS7836 but offers specific resolution and speed characteristics tailored for general-purpose data acquisition tasks. The E/2K5G4 variant specifies commercial temperature range and reel packaging.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family may include variants with different suffixes indicating package or temperature changes. Cross-family alternatives require verification of pinout compatibility and electrical parameter alignment. Consult official substitution guides for validated equivalents.