CS5529(1997) Ver la hoja de datos (PDF) - Cirrus Logic

Número de pieza

componentes Descripción

Lista de partido

CS5529
(Rev.:1997)

16-Bit, Programmable ∆Σ ADC with 6-Bit Latch

Cirrus Logic 

CS5529

Overview

The digital filter is programmable with output update rates between 1.88 Hz to

101 Hz (XIN = 32.768 kHz). Output word rates can be increased by approxi-

mately 3X by using XIN = 100 kHz. The filter is designed to settle to full accu-

racy for the selected output word rate in one conversion. When operated at

word rates of 15 Hz or less (XIN = 32.768 kHz), the filter rejects both 50 and

60 Hz line interference ±3 Hz simultaneously.

Low power, single conversion settling time, programmable output rates, and

the ability to handle negative input signals make this single or dual supply

product an ideal solution for isolated and non-isolated applications.

AIN+

AIN-

VREF+

VREF-

VA+ VA-

DGND

VD+

1X

Differential 4th

Digital Filter

Calibration

Register

order delta-

sigma modulator

1X

Control

Register

Latch

Calibration

Memory

Calibration µC

Clock

Gen.

Output

R e g is te r

CS

SCLK

SDI

SDO

A0 A1 D0 D1 D2 D3

XIN XOUT

Overview

The CS5529 is a 16-bit monolithic CMOS A/D converter optimized to mea-

sure unipolar or bipolar signals in industrial applications. The CS5529 includes

coarse charge buffers, a fourth order delta-sigma modulator, a calibration

microcontroller, a digital filter with selectable decimation rates, a 6-bit output

latch, and a serial port. The digital filter can be set to any one of eight differ-

ent output conversion word rates when the chip is operating from a 32.768 kHz

watch crystal or equivalent clock.

2

PI246PP1 OCT ‘97

Share Link: