The CDB5560 is an evaluation board for the CS5560 50 kSps, 24-bit delta-sigma ADC. It includes two differential analog input channels multiplexed to the ADC, an on-board 4.096 V reference, and an SPI serial port configured in Master mode.
The manual provides a quick-start initialization procedure and hardware description, including absolute maximum ratings, power supply details, analog and digital sections, plus appendices covering layout considerations, bill of materials, schematics, layer plots, and calibration function.
| ADC resolution | 24-bit |
|---|---|
| Sample rate | 50 kSps |
| Analog input channels | 2 differential |
| Usable analog input voltage range | -4.096 V to +4.096 V |
| Channel input impedance | 50 Ohms |
| On-board voltage reference | 4.096 V |
| ADC reference oscillator frequency | 16.000 MHz |
| Power supply requirements | +2.5 V, -2.5 V, +3.3 V |
The CS5560 produces fully settled conversions to full specified accuracy at 50 kSps.
It has two differential analog inputs multiplexed to the CS5560 ADC.
Apply 3.3 V to the multiplexer input control line (MUX).
The board generates a 4.096 V precision reference.