This data sheet describes the ADS1224's features, including 240SPS data rate, 4MHz clock, 20-bit effective resolution, four differential channels input multiplexer, pin-selectable, high-impedance input buffer, ±5V differential input range, 0.0003% INL (typ), 0.0015% INL (max), self-calibrating, simple 2-wire serial interface, on-chip temperature sensor, single conversions with standby mode, low current consumption: 300µA, analog supply: 2.7V to 5.5V, digital supply: 2.7V to 5.5V.
The ADS1224 is a 4-channel, 24-bit, delta-sigma analog-to-digital converter designed for high-resolution measurements in portable systems and space-constrained applications. It features a +5V differential input range, a self-calibrating architecture, and a simple 2-wire serial interface for control. The device supports analog and digital supply voltages ranging from 2.7V to 5.5V.
| Resolution | 24 Bits |
|---|---|
| Data Rate | 120 SPS (CLK/2MHz) |
| Integral Nonlinearity (INL) | 0.0003% (typ) |
| Analog Supply Voltage | 2.7V to 5.5V |
| Digital Supply Voltage | 2.7V to 5.5V |
| Low Current Consumption | 300uA |
| Operating Temperature Range | -55 to +125 °C |
The ADS1224 offers a 20-bit effective resolution.
The device includes an input multiplexer with four differential channels.
The data rate is 240 SPS with a 4MHz clock.