ADS1278MPAPTEP

Overview

The ADS1278MPAPTEP is an enhanced product octal, 144kHz simultaneous sampling 24-bit delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It features eight differential analog voltage inputs with a maximum input range of 5.25V and operates within an extended temperature range of -55°C to 125°C. The device utilizes a daisy-chainable SPI interface and consumes approximately 530mW of power. Key performance metrics include a signal-to-noise ratio (SNR) of 111dB, a signal-to-noise and distortion ratio (SINAD) of 106dB, and a maximum integral nonlinearity (INL) of 251.7 LSBs. It is housed in a 64-pin HTQFP package.

Feature Summary

• Enhanced Product (EP) rating designed for high-reliability applications requiring extended operational temperatures.
• Octal architecture providing eight independent channels with true simultaneous sampling capabilities.
• Integrated digital filtering with linear phase characteristics to minimize aliasing and noise.
• Daisy-chainable serial peripheral interface (SPI) supporting efficient data transfer to host processors.

Applications

• High-reliability industrial measurement systems
• Medical diagnostic equipment requiring precise signal acquisition
• Acoustic analysis and environmental monitoring in harsh environments

Procurement Notes

Verify the specific EP suffix requirements against your system's reliability standards before ordering. Confirm that the extended temperature range aligns with your environmental specifications. Ensure proper handling procedures are followed due to the sensitivity of precision analog components. Check for any export control documentation requirements associated with this specific part number prior to finalizing procurement actions.

Selection Notes

Select this component when simultaneous multi-channel acquisition is critical for maintaining phase coherence across inputs. The EP variant is suitable for designs demanding higher reliability than standard commercial grades. Consider the 530mW power consumption during thermal design phases. Verify compatibility with external reference voltages and clock sources to achieve specified SNR and SINAD performance levels.

Part Context

This part belongs to the ADS1278 family of high-performance ADCs from Texas Instruments. The MPAPTEP suffix denotes the Enhanced Product version packaged in a 64-pin HTQFP. It shares core architectural features with commercial variants but undergoes stricter screening and qualification processes to ensure performance stability under extreme conditions and long-term reliability requirements.

Replacement Considerations

Direct substitutes include other ADS1278-EP variants with different packaging options such as the ADS1278IPAPT. Ensure pinout compatibility and verify that the replacement maintains the required operating temperature range and electrical specifications for your specific application constraints.