ADS7822EC/2K5

Analog To Digital Converters (ADC) Overview

The ADS7822EC/2K5 is a single-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with an analog supply voltage range of 2.7 V to 5.25 V and supports a maximum sampling rate of 75 kS/s. The device features a pseudo-differential input architecture and communicates via a standard 3-wire serial interface compatible with SPI and QSPI protocols. Key performance metrics include a differential nonlinearity (DNL) and integral nonlinearity (INL) of ±0.75 LSB, with a signal-to-noise-and-distortion ratio (SINAD) of 71 dB. Power consumption is specified at 1.6 mW. It 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

• Micro-power operation enabled by SAR architecture for battery-powered applications
• Flexible input configuration supporting pseudo-differential or single-ended signals
• Standard 3-wire digital interface ensures compatibility with common microcontrollers

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring low power consumption
• Industrial process control systems
• Data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EC/2K5' against the manufacturer's current datasheet to confirm the package type (VSSOP-8) and reel quantity (2500 units). Ensure the ordering part number matches the required temperature grade and packaging format before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate speed (75 kS/s) and high accuracy (12-bit, ±0.75 LSB linearity) is required. It is suitable for designs needing external reference capabilities and low power dissipation. Compare against the ADS7822U if higher speed (200 kS/s) is needed, noting that the U variant uses a SOIC-8 package.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7822 family of micro-power sampling ADCs from Texas Instruments. The family includes variants like the ADS7822U and ADS7822UB, which differ primarily in package style (SOIC vs. VSSOP) and maximum sampling rates. The EC/2K5 designation specifically identifies the VSSOP-8 packaged version with a 75 kS/s sampling rate supplied in tape and reel format.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7822EB/2K5 is a documented alternative within the same series, offering similar 12-bit resolution and VSSOP-8 packaging. Verify pinout compatibility and specific electrical parameter tolerances before substitution.