ADS7828EIPWRQ1

Analog To Digital Converters (ADC) Overview

The ADS7828EIPWRQ1 is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) designed for automotive applications. It features an 8-channel multiplexer supporting pseudo-differential or single-ended inputs. The device operates with a sampling rate of 50 kSPS and communicates via an I2C serial interface. It supports both internal and external reference voltages, with power supply requirements ranging from 2.7 V to 3.6 V or 5 V for both analog and digital domains. Key performance metrics include a signal-to-noise ratio (SNR) of 72 dB, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±2 LSB. Power consumption is specified at 5 mW maximum and 675 µW typical. It is housed in a 16-TSSOP package and qualified under AEC-Q100 standards.

Analog To Digital Converters (ADC) Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated 8-channel input multiplexer allowing flexible configuration for single-ended or pseudo-differential signals.
• Low-power architecture featuring automatic shutdown modes to minimize energy consumption during idle periods.
• On-chip internal reference voltage option reduces external component count and simplifies board layout.

Analog To Digital Converters (ADC) Applications

• Battery-powered portable instrumentation and sensor interfaces.
• Industrial process control systems requiring multi-channel data acquisition.
• Medical monitoring equipment needing low-power, high-precision signal conversion.
• Automotive sensor networks and data logging modules.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IPWR indicates the automotive grade and TSSOP-16 packaging when sourcing. Confirm that the ordering part number matches the required temperature range and qualification status. Ensure compatibility with existing I2C bus configurations and voltage levels. Check for RoHS compliance and REACH status if required by regional regulations. Validate supplier authenticity through authorized distribution channels to guarantee component integrity.

Analog To Digital Converters (ADC) Selection Notes

Select this component when automotive reliability and low power consumption are critical alongside moderate resolution requirements. The integrated multiplexer makes it suitable for cost-sensitive multi-channel designs without external switching components. Consider the I2C interface constraints regarding bus speed and address conflicts. Evaluate the need for internal versus external references based on system accuracy and noise sensitivity. Ensure the input voltage range aligns with the selected reference voltage to maximize dynamic range.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS782x family of micro-power ADCs from Texas Instruments. It shares architectural similarities with the ADS7828 but includes automotive-specific qualifications and testing. The EIPWRQ1 designation distinguishes it as the qualified version for automotive electronics, ensuring consistency with other TI automotive products. It complements other data converters in the portfolio by offering a balance of speed, resolution, and power efficiency.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the standard commercial grade ADS7828E/250 or ADS7828E/2K5. For automotive replacements, verify equivalent AEC-Q100 qualification and pin compatibility. Cross-reference with ADS7823 variants if fewer channels are acceptable. Ensure any replacement maintains the 12-bit resolution and 50 kSPS sampling rate specifications.