ADS1243SKGD1

Overview

The ADS1243SKGD1 is a die-level variant of the Texas Instruments ADS1243 precision analog-to-digital converter. It features 24-bit resolution and eight differential input channels utilizing a sigma-delta architecture. The device operates on dual supplies ranging from 2.7 V to 5.25 V for both analog and digital domains. Key electrical specifications include a maximum sampling rate of 15 S/s, a power consumption of 600 uW, and a typical power dissipation of 1.9 mW. It supports SPI-compatible interfaces and includes an internal programmable gain amplifier.

Feature Summary

• Integrates high-resolution 24-bit sigma-delta conversion with eight differential inputs
• Includes a programmable gain amplifier for flexible signal conditioning
• Supports standard three-wire serial communication protocols
• Features low-power operation suitable for battery-constrained applications

Applications

• Industrial process control systems requiring high-precision data acquisition
• Medical instrumentation such as patient monitoring devices
• Weigh scales and force measurement platforms
• Strain gauge and bridge sensor interface circuits

Procurement Notes

This component is supplied as a bare die rather than a packaged integrated circuit. Verification must confirm compatibility with custom substrate mounting and wire bonding processes. Ensure that thermal management and mechanical handling procedures align with semiconductor die specifications. Standard surface-mount assembly equipment cannot be used directly without specialized flip-chip or wire-bond infrastructure.

Selection Notes

Select this part only when custom packaging solutions are available within the target design. Verify that the application environment supports direct die attachment methods. Consider the need for external reference voltage sources and clock signals. Evaluate whether the required channel count and resolution justify the complexity of die-level integration compared to packaged alternatives.

Part Context

The ADS1243SKGD1 belongs to the ADS1243 family of precision ADCs from Texas Instruments. This family is designed for applications demanding high accuracy and wide dynamic range. The SKGD1 suffix indicates the specific die configuration, distinguishing it from packaged versions like the IPWR or SJTD variants while maintaining identical functional characteristics.

Replacement Considerations

Direct replacements require other ADS1243 die variants or equivalent high-resolution sigma-delta converters. Packaged equivalents such as the ADS1243IPWR offer identical functionality but differ in physical form factor. Substitution depends on the availability of compatible mounting substrates and assembly capabilities.