ADS7828EB/250G4

Analog To Digital Converters (ADC) Overview

The ADS7828EB/250G4 is a 12-bit successive approximation register (SAR) analog-to-digital converter featuring an internal multiplexer for eight single-ended or four differential input channels. It operates with a sampling rate of 50 kSPS and supports I2C serial interface communication. The device functions on dual power supplies ranging from 2.7 V to 5.25 V, consuming 675 µW in active mode and less than 1 µW in shutdown. Key performance metrics include a signal-to-noise ratio of 72 dB, differential nonlinearity of ±0.5 LSB, and integral nonlinearity of ±1 LSB. It is housed in a 16-pin TSSOP package and operates within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 8-channel multiplexer supporting pseudo-differential and single-ended input configurations.
• Built-in internal voltage reference option alongside external reference capability.
• I2C-compatible serial interface allowing direct connection to microcontrollers without additional logic.
• Automatic power-down circuitry that minimizes energy consumption during idle periods.

Analog To Digital Converters (ADC) Applications

• Battery-powered portable instrumentation and data acquisition systems.
• Industrial process control loops requiring multi-channel sensor monitoring.
• Medical equipment involving physiological signal acquisition.
• Environmental monitoring stations utilizing distributed sensor networks.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and standard packaging when sourcing. Confirm the EB variant specifications against official datasheets to ensure alignment with required linearity and noise parameters. Check availability through authorized distributors to avoid counterfeit components. Ensure ordering documentation matches the exact part number including all alphanumeric designators.

Analog To Digital Converters (ADC) Selection Notes

Select this component when system requirements demand low channel count with moderate resolution and minimal interface complexity. The internal multiplexer reduces external switching hardware compared to single-channel ADCs. Consider the I2C speed limitations if high throughput across multiple channels is critical. Evaluate power budget constraints as the low-power modes are essential for battery-operated designs.

Analog To Digital Converters (ADC) Part Context

This device belongs to the Texas Instruments ADS782x family of micro-power ADCs. It shares architectural similarities with the ADS7823 and ADS7828 but differs in specific performance grades and suffix designations. The family targets applications needing compact solutions for multi-channel sensing without sacrificing accuracy.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7828E/250G4 serves as a functional equivalent within the same series. Verify pin compatibility and electrical parameter tolerances before substitution. Other family members like ADS7823 offer different channel counts or speeds and require schematic review.