AD7710

更新时间： 2024-02-08 23:31:51

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	223K
描述
Signal Conditioning ADC

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技术参数
数据手册

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AD7710 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	24
Reach Compliance Code：	unknown	ECCN代码：	3A001.A.2.C
HTS代码：	8542.39.00.01	风险等级：	5.82
最大模拟输入电压：	12.3 V	最小模拟输入电压：	-6.3 V
转换器类型：	ADC, DELTA-SIGMA	JESD-30 代码：	R-PDSO-G24
长度：	15.4 mm	最大线性误差 (EL)：	0.0015%
标称负供电电压：	-5 V	位数：	21
功能数量：	1	端子数量：	24
最高工作温度：	125 °C	最低工作温度：	-55 °C
输出位码：	OFFSET BINARY	输出格式：	SERIAL
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	采样速率：	0.16 MHz
座面最大高度：	2.65 mm	最大压摆率：	4 mA
标称供电电压：	10 V	表面贴装：	YES
技术：	CMOS	温度等级：	MILITARY
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.5 mm

AD7710 数据手册

Signal Conditioning ADC

AD7710*

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Charge Balancing ADC

24 Bits No Missing Codes

REF

IN (–) IN (+)

REF

BIAS

REF OUT

؎0.0015% Nonlinearity

Two-Channel Programmable Gain Front End

Gains from 1 to 128

2.5V REFERENCE

4.5␮A

Differential Inputs

CHARGE-BALANCING A/D

CONVERTER

Low-Pass Filter with Programmable Filter Cutoffs

Ability to Read/Write Calibration Coefficients

Bidirectional Microcontroller Serial Interface

Internal/External Reference Option

Single or Dual Supply Operation

Low Power (25 mW typ) with Power-Down Mode

(7 mW typ)

AIN1(+)

AIN1(–)

AIN2(+)

AIN2(–)

AUTO-ZEROED

DIGITAL

SYNC

PGA

FILTER

MODULATOR

A = 1 – 128

MCLK

CLOCK

GENERATION

MCLK

OUT

20␮A

SERIAL INTERFACE

APPLICATIONS

Weigh Scales

CONTROL

OUTPUT

OUT

Thermocouples

Process Control

Smart Transmitters

Chromatography

AD7710

AGND DGND

RFS TFS MODE SDATA SCLK DRDY A0

GENERAL DESCRIPTION

The AD7710 is a complete analog front end for low frequency

measurement applications. The device accepts low level signals

directly from a strain gage or transducer and outputs a serial

digital word. It employs a sigma-delta conversion technique to

realize up to 24 bits of no missing codes performance. The input

signal is applied to a proprietary programmable gain front end

based around an analog modulator. The modulator output is

processed by an on-chip digital filter. The first notch of this

digital filter can be programmed via the on-chip control register

allowing adjustment of the filter cutoff and settling time.

CMOS construction ensures low power dissipation and a soft-

ware programmable power down mode reduces the standby

power consumption to only 7 mW typical. The part is available

in a 24-lead, 0.3 inch-wide, plastic and hermetic dual-in-line

package (DIP) as well as a 24-lead small outline (SOIC)

package.

PRODUCT HIGHLIGHTS

1. The programmable gain front end allows the AD7710 to

accept input signals directly from a strain gage or transducer,

removing a considerable amount of signal conditioning.

The part features two differential analog inputs and a differen-

tial reference input. Normally, one of the channels will be used

as the main channel with the second channel used as an auxil-

iary input to periodically measure a second voltage. It can be

operated from a single supply (by tying the V_SSpin to AGND)

provided that the input signals on the analog inputs are more

positive than –30 mV. By taking the V_SSpin negative, the part

can convert signals down to –V_REFon its inputs. The AD7710

thus performs all signal conditioning and conversion for a single

or dual channel system.

2. The AD7710 is ideal for microcontroller or DSP processor

applications with an on-chip control register which allows

control over filter cutoff, input gain, channel selection, signal

polarity and calibration modes.

3. The AD7710 allows the user to read and write the on-chip

calibration registers. This means that the microcontroller has

much greater control over the calibration procedure.

4. No missing codes ensures true, usable, 23-bit dynamic range

coupled with excellent ±0.0015% accuracy. The effects of

temperature drift are eliminated by on-chip self-calibration,

which removes zero-scale and full-scale errors.

The AD7710 is ideal for use in smart, microcontroller based

systems. Input channel selection, gain settings and signal polar-

ity can be configured in software using the bidirectional serial

port. The AD7710 contains self-calibration, system calibration

and background calibration options and also allows the user to

read and write the on-chip calibration registers.

*Protected by U.S. Patent No. 5,134,401.

REV. F

Information furnished by Analog Devices is believed to be accurate and

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

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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与AD7710相关器件

型号	品牌	获取价格	描述	数据表
AD7710*	ADI	获取价格	Signal Conditioning ADC
AD7710_15	ADI	获取价格	Signal Conditioning ADC
AD7710AN	ADI	获取价格	Signal Conditioning ADC
AD7710ANZ	ADI	获取价格	Signal Conditioning ADC
AD7710AQ	ADI	获取价格	Signal Conditioning ADC
AD7710AR	ADI	获取价格	Signal Conditioning ADC
AD7710AR-REEL	ADI	获取价格	Signal Conditioning ADC
AD7710AR-REEL7	ADI	获取价格	Signal Conditioning ADC
AD7710ARZ	ADI	获取价格	Signal Conditioning ADC
AD7710ARZ-REEL	ADI	获取价格	Signal Conditioning ADC

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