ADS1241E/1KG4

Overview

The ADS1241E/1KG4 is a 24-bit analog-to-digital converter from the Texas Instruments ADS1240 series, housed in an SSOP-24 surface-mount package. It utilizes a sigma-delta architecture to provide four differential input channels with a maximum sampling rate of 15 S/s. The device operates on dual power supplies ranging from 2.7 V to 5.25 V for both analog and digital domains. Key electrical specifications include a differential nonlinearity of +/- 1 LSB and an integral nonlinearity of +/- 0.0015% FSR. It features a 3-wire SPI interface, programmable gain amplifier, and general-purpose I/O pins, functioning within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated programmable gain amplifier for flexible signal conditioning
• Built-in GPIO pins for system control flexibility
• Hardware filtering capability for 50 Hz and 60 Hz line frequency rejection

Applications

• Industrial process control systems requiring high-resolution measurement
• Weigh scales and load cell interfaces
• Temperature measurement systems using RTDs or thermocouples

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Ensure that the E/G4 suffix denotes standard RoHS compliance and lead-free construction as defined by Texas Instruments. Cross-reference the component marking code with official identification guides to prevent counterfeit substitution during assembly.

Selection Notes

Select this component when four differential channels are required alongside integrated signal conditioning features. The fixed 15 S/s data rate suits low-speed applications where noise rejection is prioritized over throughput. Compare against the ADS1240 if channel count differs or against the ADS1242 if additional internal reference options are needed for the specific design constraints.

Part Context

This part belongs to the ADS124x family of precision ADCs designed for low-noise, high-resolution measurements. It shares architectural similarities with the ADS1240 but offers distinct channel configurations. The series is widely utilized in metrology and industrial instrumentation where stability and accuracy are critical performance indicators.

Replacement Considerations

The ADS1240EG4 is a documented substitute within the same product family. Verify functional equivalence regarding channel count and interface timing before implementation.