Texas Instruments ADS1225
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. The ADS1225 and ADS1226 convert on command using a dedicated START pin.| Part No. | ADS1225 |
|---|---|
| Datasheet | ADS1225 Download |
| Manufacturer |  Texas Instruments |
| Description | 24-Bit ADC |
| Buy | Stock & Price |
FEATURES
1●2 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 TEMPEN AVDD
DESCRIPTION
Simply pulse this pin to initiate a conversion. Data is read in a single cycle for retrieval over a 2-wire serial interface that easily connects to popular microcontrollers like the MSP430. After the conversion completes, the ADS1225 and ADS1226 automatically shuts down all circuitry. Internal features include a two-channel multiplexer (ADS1226), selectable input buffer, temperature sensor, and oscillator.
