ADS1252UG4

Overview

The ADS1252UG4 is a 24-bit analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta architecture. It features a single differential input channel and supports SPI digital interfaces. The device operates with analog and digital supply voltages ranging from 4.75 V to 5.25 V. It offers a maximum sampling rate of 40 kS/s and includes programmable filter settings for 50 Hz and 60 Hz line cycle synchronization rejection. Key performance metrics include a differential nonlinearity (DNL) of ±1 LSB and an integral nonlinearity (INL) of ±0.0015% FSR. The component is housed in an 8-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated low-noise programmable gain amplifier for signal conditioning
• On-chip precision voltage reference and oscillator for reduced external component count
• Programmable output data rate with synchronized 50/60 Hz rejection filters

Applications

• Industrial process control systems
• Weigh scales and load cell measurements
• Portable instrumentation devices

Procurement Notes

Verify the suffix 'G4' indicates lead-free status and RoHS compliance as per Texas Instruments documentation. Confirm the SOIC-8 package dimensions match the target PCB footprint. Ensure the external reference voltage source meets the required accuracy specifications for the intended application resolution.

Selection Notes

Select this component when high-resolution single-channel conversion is required with minimal external circuitry. Compare against the ADS1251 for lower speed requirements or the ADS1253 for additional channel counts. Verify that the system power budget accommodates the specified operating current levels at the desired data rate.

Part Context

This part belongs to the ADS125x family of low-power, 24-bit sigma-delta ADCs. It shares architectural similarities with the ADS1251 and ADS1253 but is distinguished by its specific combination of sampling speed and interface options. The UG4 designation specifies the package type and environmental compliance attributes defined by the manufacturer.

Replacement Considerations

Direct pin-compatible alternatives within the same family include the ADS1251U and ADS1253U. Verify functional equivalence regarding sampling rates and channel configurations before substitution. Cross-reference datasheets to ensure interface timing and register maps remain compatible with existing firmware.