DS8102

更新时间： 2024-11-29 06:54:43

品牌	Logo	应用领域
美信 - MAXIM		编码器
页数	文件大小	规格书
9页	148K
描述
Dual Delta-Sigma Modulator and Encoder

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数据手册

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DS8102 数据手册

Rev 1; 2/09

Dual Delta-Sigma Modulator and Encoder

DS8102

General Description

Features

The DS8102 is a stand-alone, dual-channel, delta-

sigma modulator that converts measurements from two

differential analog input pairs into a Manchester-encod-

ed output bit stream that can be processed by a com-

panion microcontroller such as the MAXQ3108. One

channel operates at a fixed 1x gain, while the other

operates at a pin-selectable gain of 1x, 4x, 16x, or 32x.

The DS8102 includes an internal power-supply monitor,

on-board voltage reference, and low-power oscillator to

reduce the number of external components required for

data acquisition.

♦ Dual Delta-Sigma 2nd-Order Modulators

Channel 0: Pin-Selectable Gain of 1x, 4x, 16x,

or 32x

Channel 1: Fixed Gain of 1x

♦ Selectable Internal or External Voltage Reference

♦ Manchester-Encoded Bit Stream Output

Includes Synchronization Bits to Allow Clock

Recovery

Single-Pin Transmission Scheme Simplifies

Electrical Isolation Using Capacitive Coupling

The Manchester-encoded output from the DS8102

combines pulse-density-modulated measurement val-

ues from both differential input channels with a syn-

chronization bit stream and is transmitted over a single

pin. This transmission scheme is ideal for split voltage

domain applications where the DS8102 and other “hot”-

side components must be electrically isolated from

“cold” low-voltage components such as a companion

microcontroller. In this type of application, the DS8102

can be capacitively coupled to a companion microcon-

troller with only two connection points required

(MNOUT and DGND).

♦ Selectable Internal or External Clock Source

♦ Integrated Low-Power 8MHz Oscillator

♦ Operating Mode

Active Mode (8MHz, V

= 3.6V): 3.5mA

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

DS8102+

-40°C to +85°C

16 TSSOP

+Denotes a lead(Pb)-free/RoHS-compliant package.

The MAXQ3108 dual-core microcontroller, which

includes specialized Manchester bit-stream decoding

inputs and sinc3 filters, is specifically designed to act

as a companion microcontroller for up to three DS8102

devices. This configuration, which supports up to six

differential analog input channels, is well suited for

three-phase electricity-metering applications.

Pin Configuration

TOP VIEW

DGND

Applications

APDREF

AGND

RST

Single-Phase Electricity Metering

Three-Phase Electricity Metering

Power-Line Conditioning

REF

DS8102

AN1-

AN1+

AN0-

AN0+

MNOUT

CLKIO

Electrochemical and Optical Sensors

Industrial Control

CLKSEL

Data-Acquisition Systems and Data Loggers

TSSOP

Typical Operating Circuit appears at end of data sheet.

MAXQ is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...9

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与DS8102相关器件

型号	品牌	获取价格	描述	数据表
DS8102+	MAXIM	获取价格	Dual Delta-Sigma Modulator and Encoder
DS8102-FFN+	MAXIM	获取价格	Telecom Circuit, 1-Func, PDSO16, ROHS COMPLIANT, TSSOP-16
DS811	ETC	获取价格	Analog IC
DS8113	MAXIM	获取价格	Smart Card Interface
DS8113_10	MAXIM	获取价格	Smart Card Interface
DS8113-JNG+	MAXIM	获取价格	Smart Card Interface
DS8113-JNG+T&R	MAXIM	获取价格	Microprocessor Circuit, CMOS, PDSO28, TSSOP-28
DS8113-RNG+	MAXIM	获取价格	Smart Card Interface
DS812	ETC	获取价格	Analog IC
DS813	ETC	获取价格	Analog IC

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