CS5532-ASZ Datasheet PDF - Cirrus Logic

●General Description

●The CS5531/32/33/34 are highly integrated ∆ΣAnalogto-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.

●Features

●‰Chopper-stabilized PGIA (Programmable Gain Instrumentation Amplifier, 1x to 64x)

●  – 12 nV/√Hz@ 0.1 Hz (No 1/f noise) at 64x

●  – 1200 pA Input Current with Gains >1

●‰Delta-sigma Analog-to-digital Converter

●  – Linearity Error: 0.0007% FS

●  – Noise Free Resolution: Up to 23 bits

●‰Two- or Four-channelDifferential MUX

●‰Scalable Input Span via Calibration

●  – ±5 mV to differential ±2.5V

●‰Scalable VREFInput: Up to Analog Supply

●‰Simple Three-wire Serial Interface

●  – SPI™ and Microwire™ Compatible

●  – Schmitt Trigger on Serial Clock (SCLK)

●‰R/W Calibration Registers Per Channel

●‰Selectable Word Rates: 6.25 to 3,840 Sps

●‰Selectable 50 or 60 Hz Rejection

●‰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