ADS7822E/250

Analog To Digital Converters (ADC) Overview

The ADS7822E/250 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 200 kS/s. The device features a 3-wire serial interface compatible with standard SPI protocols. It accepts pseudo-differential or single-ended input signals and utilizes an external reference configuration. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 71 dB, with differential and integral nonlinearity errors specified at +/- 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

• MicroPower architecture enabling low power consumption of 1.6 mW during operation
• High-speed data conversion capability supporting up to 200 kS/s sampling rates
• Flexible input handling for both pseudo-differential and single-ended signal types
• Compact surface-mount packaging designed for space-constrained circuit board layouts

Analog To Digital Converters (ADC) Applications

• Portable battery-powered instrumentation systems requiring low power consumption
• Industrial process control loops utilizing 3-wire digital communication interfaces
• Data acquisition modules for environmental monitoring sensors
• Medical diagnostic equipment needing high-resolution signal digitization

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix designation to confirm the reel quantity and tape specifications associated with the /250 variant. Ensure compatibility with existing PCB footprints for the VSSOP-8 package during integration. Confirm that the external reference voltage requirements align with the system design constraints before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate speed and low power consumption is required for single-channel applications. Consider the ADS7822U if a SOIC-8 package is preferred over the VSSOP-8 form factor. Evaluate the ADS7822EC/2K5 if higher linearity accuracy is necessary, as it offers improved DNL and INL specifications compared to the standard E series.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7822 family of micro-power ADCs from Texas Instruments. The family includes variants such as the ADS7822U and ADS7822EC/2K5, which share similar core architectures but differ in package styles and linearity specifications. The ADS7822E/250 specifically denotes the version packaged in VSSOP-8 format supplied on a reel.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7822U serves as a pin-compatible alternative offering the same electrical characteristics in a SOIC-8 package. For applications requiring tighter linearity tolerances, the ADS7822EC/2K5 provides superior DNL and INL performance while maintaining the same VSSOP-8 footprint.