ADS1252U

Overview

The ADS1252U is a 24-bit, single-channel analog-to-digital converter (ADC) from Texas Instruments. It utilizes a sigma-delta architecture and supports sampling rates up to 40 kSPS. The device operates on a single 5V supply with power consumption of 40 mW. It features an integrated programmable gain amplifier (PGA) and differential inputs. Communication is handled via a standard SPI interface. 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 programmable gain amplifier for signal conditioning
• Sigma-delta modulation architecture for high resolution
• Built-in 50 Hz and 60 Hz rejection capabilities

Applications

• Direct thermocouple interface systems
• Industrial process control monitoring
• High-resolution weighing scales

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging type. The 'U' designation indicates surface mount packaging in an SOIC-8 case. Confirm moisture sensitivity level requirements during storage and handling procedures before assembly.

Selection Notes

Select this component when a single differential channel with 24-bit resolution is required. Ensure the system accommodates the external reference voltage requirement. Verify that the host microcontroller supports the necessary SPI clock speeds and timing constraints for reliable data acquisition.

Part Context

This part belongs to the ADS125x family of low-power, high-precision ADCs. It shares architectural similarities with the ADS1251 but offers higher sampling throughput. The device is designed for applications demanding precise measurement of small analog signals without complex external circuitry.

Replacement Considerations

The ADS1251U is a compatible alternative within the same series, offering identical pinout and functionality with a reduced maximum sampling rate of 20 kSPS.