參數(shù)資料
型號: CS5471-BS
廠商: CIRRUS LOGIC INC
元件分類: ADC
英文描述: DUAL CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
中文描述: 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO20
封裝: MO-150, SSOP-20
文件頁數(shù): 1/14頁
文件大?。?/td> 356K
代理商: CS5471-BS
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2001
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS5471
Dual-Channel Delta-Sigma Analog-to-Digital Converter
Features
Synchronous Sampling
On-chip 1.2 V Reference (25 ppm/°C typ.)
Power Supply Configurations:
VA+ = +3 V; VA- = -2 V; VD+ = +3 V
Supply tolerances ±10%
Power Consumption
10 mW Typical at VD+ = +3 V
Simple Four-wire Serial Interface
Charge Pump Driver output generates
negative power supply.
Ground-Referenced Bipolar Inputs
Description
The CS5471 is a highly integrated Delta-Sigma (
Σ)
An-
alog-to-Digital Converter (ADC) developed for the Power
Measurement Industry. The CS5471 combines two
Σ
ADCs, decimation filters, and a serial interface on a sin-
gle chip. The CS5471 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.
ORDERING INFORMATION:
CS5471-BS
-40
°
C to +85
°
C 20-pin SSOP
VREFIN
VREFOUT
+
-
+
-
AGND
XIN
DGND
SE
FSO
SDO
SCLK
Voltage
Reference
Serial
Interface
4th Order
Σ
Modulator
2nd Order
Σ
Modulator
Decimation Filter
Decimation Filter
x1, 20
x1
x1
VA-
CLOCK
CPD
OWRS
Pulse Output
Regulator
GAIN
IIN
IIN
VA+
VD+
RESET
VIN
VIN
JUL ‘01
DS480PP5
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