EVAL-AD79X4CBZ datasheet, PDF - EEWORLD Datasheet

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EVAL-AD79X4CBZ: DescriptionBOARD EVALUATION FOR AD79X4CBZ; CategoryDevelopment board/suite/development tools; File Size763KB，32 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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EVAL-AD79X4CBZ Overview

BOARD EVALUATION FOR AD79X4CBZ

EVAL-AD79X4CBZ Parametric

Parameter Name	Attribute value
Number of A/D converters	1
Number of digits	8，10，12
Sample rate (per second)	1M
Data interface	serial
input range	0 ~ 2.5 V
Power under different conditions (typical values)	13.5mW @ 1MSPS，5 V
IC/parts used	AD7904，AD7914，AD7924
What's included	plate

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内½序列器的4通道、1

MSPS、

8/10/12½ADC，采用16引脚TSSOP封装

AD7904/AD7914/AD7924

产品特性

高采样速率：1

MSPS

额定电压(AV

)：2.7 V至5.25 V

½功耗：

最大6

mW(1 MSPS、3 V电源)

最大13.5

mW(1 MSPS、5 V电源)

4个带序列器的单端输入

½输入带½

SNR：70 dB(AD7924，50 kHz输入频率)

灵活的功耗/串行时钟速度管理

无流水线延迟

高速串行接口：SPI/QSPI™/MICROWIRE™/DSP兼容

关断模式：0.5

µA(最大值)

16引脚TSSOP封装

通过½½应用认证

REF

T/H

I/P

MUX

8-/10-/12-BIT

SUCCESSIVE

APPROXIMATION

ADC

功½框图

SCLK

DOUT

SEQUENCER

CONTROL LOGIC

DIN

AD7904/AD7914/AD7924

03087-001

DRIVE

AGND

图1.

概述

AD7904/AD7914/AD7924分别是8½、10½和12½高速、½

功耗、4通道逐次逼近型ADC。采用单电源工½，电源电

压为2.7

V至5.25V，最高吞吐速率可达1 MSPS。这些器件均

内½½噪声、½带½采样保持放大器，可处理8

MHz以上的

输入频率。

½换过程和数据采集过程通过CS和串行时钟信号进行控

制，从而为器件与微处理器或DSP½松接口创造了条件。

输入信号在CS的下降沿进行采样，而½换同时在此处启

动。该器件无流水线延迟。

AD7904/AD7914/AD7924采用先进的设计技术，可在最高

吞吐速率下实现极½的功耗。在最高吞吐速率下，采用3

电源时，AD7904/AD7914/AD7924的最大功耗为2

mA；采用

5 V电源时，最大功耗为2.7 mA。

通过配½控制寄存器，器件的模拟输入范围可以在0

V至REF

或0

V至2 × REF

间选择，可采用直接二进制式或二进制补

码输出编码。AD7904/AD7914/AD7924均具有4个带通道序

列器的单端模拟输入，可通过预先编程选择通道½换顺序。

AD7904/AD7914/AD7924的½换时间取决于SCLK频率，该

频率同时用½控制½换的主时钟。

产品特色

高吞吐速率、½功耗。AD7904/AD7914/AD7924的吞吐

速率高达1

MSPS。在最高吞吐速率下，采用3 V电源时，

AD7904/AD7914/AD7924的最大功耗仅6 mW。

2. 4个带通道序列器的单端输入。可以选择通道顺序，

ADC将按该顺序循环执行½换。

利用

DRIVE

功 ½ 实现单电源供电。

AD7904/AD7914/

AD7924采用2.7 V至5.25 V单电源供电。利用V

DRIVE

功½，

串行接口可直接连至独立于V

的3

V或5 V处理器系统。

灵活的功耗/串行时钟速度管理。½换速率取决于串行

时钟，通过提高串行时钟速度可缩短½换时间。这些器

件还提供两种关断模式，可在较½吞吐速率下实现最高

功效，完全关断时的最大功耗为0.5

A。

无流水线延迟。

这些器件采用标准逐次逼近型ADC，通过CS输入与一

次性½换控制可实现对采样时刻的精确控制。

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 that may result from its use. Speci cations subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

Rev. C

Document Feedback

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

Technical Support

www.analog.com

ADI中文版数据手册是英文版数据手册的译文，敬请谅解翻译中可½存在的语言组织或翻译错误，ADI不对翻译中存在的差异或由此产生的错误负责。如需确认任½词语的准确性，请参考ADI提供

的最新英文版数据手册。

AD7904/AD7914/AD7924

目½

产品特性

......................................................................................... 1

功½框图

......................................................................................... 1

概述..................................................................................................

产品特色

......................................................................................... 1

修订历史

......................................................................................... 2

技术规格

......................................................................................... 3

AD7904规格.............................................................................. 3

AD7914规格.............................................................................. 5

AD7924规格.............................................................................. 7

时序规格....................................................................................

绝对最大额定值..........................................................................

ESD警告................................................................................... 10

引脚配½和功½描述

................................................................. 11

典型性½参数

.............................................................................. 12

术语................................................................................................

控制寄存器...................................................................................

序列器操½

............................................................................. 16

电路信息

....................................................................................... 18

½换器操½

............................................................................. 18

ADC传递½数 ........................................................................ 19

典型连接图

............................................................................. 20

工½模式

....................................................................................... 22

正常模式(PM1

= PM0 = 1)................................................... 22

完全关断模式(PM1

= 1，PM0 = 0) ................................... 22

自动关断模式(PM1

= 0，PM0 = 1) ................................... 22

AD7904/AD7914/AD7924上电............................................ 23

功耗与吞吐速率..........................................................................

串行接口..................................................................................

应用信息

....................................................................................... 27

微处理器接口

......................................................................... 27

接地和布局

............................................................................. 28

外½尺寸

....................................................................................... 29

订购指南..................................................................................

½½应用级产品.....................................................................

修订历史

2013年6月—修订版B至修订版C

删除“AD7904/AD7914/AD7924性½评估”部分....................

更改“订购指南”............................................................................

2011年7月—修订版A至修订版B

更改“产品特性”部分....................................................................

更改表1中的信纳比(SINAD)参数和信噪比(SNR)参数

....... 3

更改表2中的信纳比(SINAD)参数和信噪比(SNR)参数

....... 5

更改表3中的信纳比(SINAD)参数和信噪比(SNR)参数

....... 7

更改表5

..........................................................................................10

更改“订购指南”............................................................................

增加“½½应用级产品”部分.....................................................

2009年2月——修订版0至修订版A

更新格式

..................................................................................通篇

移动图2

.......................................................................................... 9

更改表5

........................................................................................ 10

更改“典型性½参数”部分

........................................................ 12

移动“术语”部分..........................................................................

更新“外½尺寸”..........................................................................

更改“订购指南”...........................................................................

2002年11月—修订版0：初始版

Rev. C | Page 2 of 32

EVAL-AD79X4CBZ Related Products

	EVAL-AD79X4CBZ	AD7904	AD7914	AD7924	AD7904BRUZ
Description	BOARD EVALUATION FOR AD79X4CBZ	4-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16	4-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16	4-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16	A/D number of digits: 8 Sampling rate (sps): 1M Number of inputs: 4 Input type: Single Ended
Number of digits	8，10，12	8	8	8	8
Number of functions	-	1	1	1	1
Number of terminals	-	16	16	16	16
Maximum operating temperature	-	85 Cel	85 Cel	85 Cel	85 °C
Minimum operating temperature	-	-40 Cel	-40 Cel	-40 Cel	-40 °C
Rated supply voltage	-	3 V	3 V	3 V	-
Maximum conversion time	-	0.8000 uS	0.8000 uS	0.8000 uS	0.8 µs
Maximum linear error	-	0.0781 %	0.0781 %	0.0781 %	-
Maximum limit analog input voltage	-	2.5 V	2.5 V	2.5 V	-
Minimum limit analog input voltage	-	0.0 V	0.0 V	0.0 V	-
Processing package description	-	MO-153AB, TSSOP-16	MO-153AB, TSSOP-16	MO-153AB, TSSOP-16	-
state	-	ACTIVE	ACTIVE	ACTIVE	-
packaging shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package Size	-	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-
surface mount	-	Yes	Yes	Yes	YES
Terminal form	-	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	-	0.6500 mm	0.6500 mm	0.6500 mm	-
terminal coating	-	TIN LEAD	TIN LEAD	TIN LEAD	-
Terminal location	-	DUAL	DUAL	DUAL	DUAL
Packaging Materials	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
Temperature level	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Sampling Rate	-	1 MHz	1 MHz	1 MHz	-
Output format	-	SERIAL	SERIAL	SERIAL	SERIAL
Type of converter	-	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	-
Output bit encoding	-	BINARY, 2S COMPLEMENT BINARY	BINARY, 2S COMPLEMENT BINARY	BINARY, 2S COMPLEMENT BINARY	-
Number of analog channels	-	4	4	4	-
Sample and hold and track and hold	-	TRACK	TRACK	TRACK	-

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