Description
The CS5540 is a low-power and low-voltage ∆Σ analog-to-digital converter (ADC), which achieves highly accurate conversions using a simple non-programmable interface that is easy to understand and design-in. It is optimized to convert analog signals in DC measurement applications, such as temperature and pressure measurement, and various portable devices where low-power consumption is required.
FEATUREs
● ∆Σ Analog-to-Digital Converter
- Linearity Error: 0.0015% FS
- RMS Noise: 4 µV
● Two Channel Differential MUX
● Buffered, Fully Differential Analog and
Voltage Reference Inputs
● Scalable VREF Input: 0.1 V to Analog Supply
● High Absolute Accuracy via Self-Calibration
● Fixed Digital Filter
- Single Conversion Settling at 6.7 SPS
- Simultaneous 50/60 Hz Rejection
● Simple Serial Interface
- SPITM and MicrowireTM Compatible
- Schmitt Trigger on Serial Clock (SCLK)
● Low Power
- Single +3.0 V Supply
- 330 µA Supply Current
- 10 µA in Sleep Mode