This document is an introduction to the ADS1204 data acquisition device. It introduces the features of the product, including 16-bit resolution, 14-bit linearity, resolution/speed trade-off, etc.
The ADS1204 is a four-channel, high-performance device featuring four delta-sigma (AZ) modulators with 100dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers in an industrial environment. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing code. Effective resolution of 12 bits can be obtained with a digital filter data rate of 160kHz at a modulator rate of 10MHz. The ADS1204 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. It is available in a QFN-32 (5x5) package.
The device features four independent delta-sigma modulators, four input reference buffers, and an onboard 20MHz oscillator with selectable internal or external clock options. Key specifications include 16-bit resolution, 14-bit linearity, and a gain error of 0.5%. The operating temperature range is -40°C to +85°C.
| Resolution | 16 Bits |
|---|---|
| Linearity | 14-Bit |
| Gain Error | 0.5% |
| Operating Temperature Range | -40°C to +85°C |
| Package | QFN-32 (5x5) |
| Supply Voltage | 4.75V to 5.25V |
| Internal Reference Voltage | 2.5V |
| Number of Channels | Four |
The device can achieve 16-bit analog-to-digital conversion with no missing code, or an effective resolution of 12 bits with a digital filter data rate of 160kHz.
Applications include motor control, current measurement, industrial process control, instrumentation, smart transmitters, portable instruments, weight scales, pressure transducers, chromatography, and portable instrumentation.
Yes, the device includes an onboard 20MHz oscillator with selectable internal or external clock options.