Datasheet > CS5451

CS5451

更新时间： 2024-11-13 22:40:19

品牌	Logo	应用领域
其他 - ETC		转换器模数转换器
页数	文件大小	规格书
14页	353K
描述
SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER

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CS5451 数据手册

CS5451

Six-Channel Delta-Sigma Analog-to-Digital Converter

Features

Description

The CS5451 is a highly integrated Delta-Sigma (∆Σ) An-

alog-to-Digital Converter (ADC) developed for the Power

Measurement Industry. The CS5451 combines six ∆Σ

ADCs, decimation filters, and a serial interface on a sin-

gle chip. The CS5451 interfaces directly to a current

transformer or shunt to measure current, and resistive

divider or transformer to measure voltage. The product

features a serial interface for communication with a mi-

cro-controller or DSP. The product is initialized and fully

functional upon reset, and includes a Voltage Reference.

l Synchronous Sampling

l On-chip 1.2 V Reference (25 ppm/°C typ)

l Power Supply Configurations:

– VA+ = +3 V; VA- = -2 V; VD+ = +3 V

– Supply tolerances 10%

l Power Consumption

– 20 mW Typical at VD+ = +3 V

l Simple Four-wire Serial Interface

l Charge Pump Driver output generates

negative power supply.

l Ground-Referenced Bipolar Inputs

ORDERING INFORMATION:

CS5451-BS -40°C to +85°C

28-pin SSOP

VA+

RESET

VD+

GAIN

IIN1+

IIN1-

∆Σ

x1, 20

4th Order

2nd Order

Modulator

Decimation Filter

VIN1+

VIN1-

∆Σ

Decimation Filter

x1, 20

∆Σ

4th Order

Modulator

Decimation Filter

IIN2+

IIN2-

VIN2+

VIN2-

OWRS

SDO

2nd Order ∆Σ Modulator

Serial

Interface

∆Σ

FSO

x1, 20

4th Order

Modulator

Decimation Filter

IIN3+

IIN3-

SCLK

VIN3+

VIN3-

∆Σ

2nd Order

Modulator

VREFIN

Voltage

Reference

Pulse Output

Regulator

VREFOUT

CPD

CLOCK

XIN

AGND

VA-

DGND

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

Preliminary Product Information

JUL ‘01

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

DS458PP4

12 3 4 5 6 7...14

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