DESCRIPTION

The ADS1225 and ADS1226 are 24-bit delta-sigma analog-to-digital (A/D) converters. They offer excellent performance, ease-of-use, and low power in a small 4mm × 4mm QFN package and are well-suited for demanding high-resolution measurements, especially in portable and other space-saving and power-constrained applications.

FEATURES

• 100SPS Data Rate (High-Speed Mode)
• Single-Cycle Settling
• Easy Conversion Control with START Pin
• Automatic Shutdown
• Low Noise: 4µVRMS Noise (High-Resolution Mode)
• Input Multiplexer with Two Differential Channels (ADS1226)
• Voltage Reference Supports Ratiometric Measurements
• Self-Calibrating
• Simple Read-Only 2-Wire Serial Interface
• Internal High-Impedance Input Buffer
• Internal Temperature Sensor
• Internal Oscillator
• Low-Power: 1mW While Operating, < 1µA During Shutdown
• Analog and Digital Supplies: 2.7V to 5.5V

APPLICATIONS

• Hand-Held Instrumentation
• Portable Medical Equipment
• Industrial Process Control