The ADS1254 is a 24-bit resolution analog-to-digital converter with wide dynamic range and low power consumption. It is designed for high-resolution measurement applications such as cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, two-wire synchronous serial interface for low-cost isolation. The ADS1254 is a multi-channel converter and is offered in an SSOP-20 package.
The document describes the ADS1254, a wide dynamic range, delta-sigma Analog-to-Digital (A/D) converter featuring 24-bit resolution with no missing codes. It is designed for high-resolution measurement applications such as cardiac diagnostics, smart transmitters, and industrial process control.
| Resolution | 24 Bits |
|---|---|
| Effective Resolution | 19 bits (1.8ppm) |
| Data Rate | 20kHz |
| Input Channels | Four Differential Inputs |
| Integral Non-Linearity (INL) | 15ppm (max) |
| Power-Down Mode | Available |
| Operating Power | 43 to 6.5 mW |
| Quiescent Current (AVpp = +5V) | 0.8 to 1.15 mA |
| Operating Temperature Range | -40°C to +85°C |
The datasheet specifies a data rate of 20.8 kHz.
The device operates between -40°C and +85°C.
The maximum power dissipation is 500mW.