AD7703BQ

更新时间： 2024-09-15 22:29:15

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
16页	253K
描述
LC2MOS 20-Bit A/D Converter

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AD7703BQ 数据手册

LC MOS

20-Bit A/D Converter

AD7703

FEATURES

FUNCTIO NAL BLO CK D IAGRAM

Monolithic 20-Bit ADC

0.0003% Linearity Error

AV_SS

DV_SS

SC1

SC2

20-Bit No Missed Codes

On-Chip Self-Calibration Circuitry

Program m able Low -Pass Filter

0.1 Hz to 10 Hz Corner Frequency

0 to +2.5 V or +2.5 V Analog Input Range

4 kSPS Output Data Rate

Flexible Serial Interface

Ultralow Pow er

AD7703

DV_DD

AV_DD

CALIBRATION

MICROCONTROLLER

CALIBRATION

SRAM

CAL

20-BIT CHARGE BALANCE A/D

CONVERTER

A_IN

BP/UP

SLEEP

6-POLE GAUSSIAN

ANALOG

MODULATOR

V_REF

LOW-PASS

DIGITAL FILTER

APPLICATIONS

Industrial Process Control

Weigh Scales

Portable Instrum entation

Rem ote Data Acquisition

AGND

DGND

20 SDATA

CLOCK

SERIAL INTERFACE

GENERATOR

LOGIC

SCLK

MODE

CLKIN CLKOUT

DRDY

GENERAL D ESCRIP TIO N

P RO D UCT H IGH LIGH TS

T he AD7703 is a 20-bit ADC which uses a sigma delta conver-

sion technique. T he analog input is continuously sampled by an

analog modulator whose mean output duty cycle is proportional

to the input signal. T he modulator output is processed by an

on-chip digital filter with a six-pole Gaussian response, which

updates the output data register with 20-bit binary words at

word rates up to 4 kHz. T he sampling rate, filter corner fre-

quency and output word rate are set by a master clock input

that may be supplied externally, or by an on-chip gate oscillator.

1. T he AD7703 offers 20-bit resolution coupled with

outstanding 0.0003% accuracy.

2. No missing codes ensures true, usable, 20-bit dynamic range,

removing the need for programmable gain and level-setting

circuitry.

3. T he effects of temperature drift are eliminated by on-chip

self-calibration, which removes zero and gain error. External

circuits can also be included in the calibration loop to remove

system offsets and gain errors.

T he inherent linearity of the ADC is excellent, and endpoint

accuracy is ensured by self-calibration of zero and full scale

which may be initiated at any time. T he self-calibration scheme

can also be extended to null system offset and gain errors in the

input channel.

4. A flexible synchronization allows the AD7703 to interface

directly to the serial ports of industry standard

microcontrollers and DSP processors.

5. Low operating power consumption and an ultralow power

standby mode make the AD7703 ideal for loop powered

remote sensing applications, or battery-powered portable

instruments.

T he output data is accessed through a serial port, which has two

synchronous modes suitable for interfacing to shift registers or

the serial ports of industry standard microcontrollers.

CMOS construction ensures low power dissipation, and a power

down mode reduces the idle power consumption to only 10 ␮W.

REV. D

Inform ation furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assum ed by Analog Devices for its

use, nor for any infringem ents of patents or other rights of third parties

which m ay result from its use. No license is granted by im plication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.

Tel: 617/ 329-4700

Fax: 617/ 326-8703

12 3 4 5 6 7...16

中文翻译

下载PDF

与AD7703BQ相关器件

型号	品牌	获取价格	描述	数据表
AD7703BR	ADI	获取价格	LC2MOS 20-Bit A/D Converter
AD7703BR-REEL	ROCHESTER	获取价格	1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO20, SOIC-20
AD7703BRZ	ADI	获取价格	20-Bit A/D Converter
AD7703CN	ADI	获取价格	LC2MOS 20-Bit A/D Converter
AD7703CQ	ADI	获取价格	LC2MOS 20-Bit A/D Converter
AD7703CR	ADI	获取价格	LC2MOS 20-Bit A/D Converter
AD7703CR-REEL	ADI	获取价格	1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO20, SOIC-20
AD7703SQ	ADI	获取价格	LC2MOS 20-Bit A/D Converter
AD7703SQ/883B	ADI	获取价格	IC 1-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, CDIP20, CERDIP-20, Analog to Digital Conver
AD7705	ADI	获取价格	3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs

与AD7703BQ相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

6
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

6
SL74HC10N：高性能三输入与非门解析
2024-09-03

88
AIC1781A 电池充电控制器深度解析
2024-09-03

79

产品中心

服务支持

精选活动

关于我们

帮助中心

AD7703BQ

AD7703BQ 数据手册

与AD7703BQ相关器件

与AD7703BQ相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AD7703BQ

AD7703BQ 数据手册

与AD7703BQ相关器件

与AD7703BQ相关文章

您还可以找

您在本页遇到什么问题？