General Description

The CS5566 is a single-channel, 24-bit analog-to-digital converter capable of 5 kSps conversion rate. The input accepts a fully differential analog input signal. On-chip buffers provide high input impedance for both the AIN inputs and the VREF+ input. This significantly reduces the drive requirements of signal sources and reduces errors due to source impedances. The CS5566 is a delta-sigma converter capable of switching multiple input channels at a high rate with no loss in throughput. The ADC uses a low-latency digital filter architecture.

Features

❐ Differential Analog Input

❐ On-chip Buffers for High Input Impedance

❐ Conversion Time = 200 μS

❐ Settles in One Conversion

❐ Linearity Error = 0.0005

❐ Signal-to-Noise = 110 dB

❐ 24 Bits, No Missing Codes

❐ Simple three/four-wire serial interface

❐ Power Supply Configurations:

- Analog: +5V/GND; IO: +1.8V to +3.3V

- Analog: ±2.5V; IO: +1.8V to +3.3V

❐ Power Consumption: 20 mW @ 5 kSps