CS5531AKS

The CS5531AKS | CS5531-ASZR | CS5531-ASZ | CS55312 is one of The CS5531/32/33/34 series.The CS5531/32/33/34 are highly integrated Analogto-Digital Converters (ADCs) which use charge-balance techniques to achieve 16-bit (CS5531/33) and 24-bit(CS5532/34) performance. The ADCs are optimized for measuring low-level unipolar or bipolar signals in weigh scale, process control, scientific, and medical applications.To accommodate these applications, the ADCs come as either two-channel (CS5531/32) or four-channel(CS5533/34) devices and include a very low noise chopper-stabilized instrumentation amplifier (6 nV/Hz @ 0.1Hz) with selectable gains of 1*, 2*, 4*, 8*, 16*, 32*, and 64*. These ADCs also include a fourth order modulator followed by a digital filter which provides twenty selectable output word rates of 6.25, 7.5, 12.5, 15, 25, 30,50, 60, 100, 120, 200, 240, 400, 480, 800, 960, 1600,1920, 3200, and 3840 Sps (MCLK = 4.9152 MHz).

Features of the CS5531/32/33/34 are:(1)
Chopper Stabilized PGIA (Programmable Gain Instrumentation Amplifier, 1x to 64x) 6 nV/Hz @ 0.1 Hz (No 1/f noise) at 64x500 pA Input Current with Gains >1;(2)
Delta-Sigma Analog-to-Digital Converter Linearity Error: 0.0007% FS Noise Free Resolution: Up to 23 bits;(3)Two or Four Channel Differential MUX;(4)
Scalable Input Span via Calibration±5 mV to differential ±2.5V;(5)Scalable VREF Input: Up to Analog Supply;(6)Simple three-wire serial interface SPIand Microwire™ Compatible Schmitt Trigger on Serial Clock (SCLK);(7)R/W Calibration Registers Per Channel;(8)Selectable Word Rates: 6.25 to 3,840 Sps;(9)Selectable 50 or 60 Hz Rejection;(10)Power Supply Configurations VA+ = +5 V; VA- = 0 V; VD+ = +3 V to +5 V VA+ = +2.5 V; VA- = -2.5 V; VD+ = +3 V to +5 V VA+ = +3 V; VA- = -3 V; VD+ = +3 V.

The absolute maximum ratings of the CS5531/32/33/34 can be summarized as:(1)DC Power Supplies Positive Digital:-0.3V to +6.0V;(2)DC Power Supplies Positive Analog:-0.3V to +6.0V;(3)DC Power Supplies Negative Analog:+0.3V to -3.75V;(4)Input Current, Any Pin Except Supplies:±10mA;(5)Output Current:±25mA;(6)Power Dissipation:500mW;(7)Analog Input Voltage VREF pins:(VA-) -0.3V to (VA+) + 0.3V;(8)Analog Input Voltage AIN Pins:(VA-) -0.3V to (VA+) + 0.3V;(9)Digital Input Voltage:-0.3V to (VD+) + 0.3V;(10)Ambient Operating Temperature:-40°C to 85°C;(11)Storage Temperature:-65°C to 150°C.