Datasheet > AD7805CRZ-REEL7

AD7805CRZ-REEL7

更新时间： 2024-11-26 15:27:39

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管转换器
页数	文件大小	规格书
28页	374K
描述
+3.3 V to +5 V Quad/Octal 10-Bit DAC

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数据手册
替代型号

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AD7805CRZ-REEL7 数据手册

+3.3 V to +5 V Quad/Octal 10-Bit DACs

AD7804/AD7805/AD7808/AD7809

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

Four 10-Bit DACs in One Package

Serial and Parallel Loading Facilities Available

AD7804 Quad 10-Bit Serial Loading

AD7805 Quad 10-Bit Parallel Loading

AD7808 Octal 10-Bit Serial Loading

AD7809 Octal 10-Bit Parallel Loading

+3.3 V to +5 V Operation

AGND DGND

OUT

POWER ON

RESET

REFOUT

REFIN

1.23V REF

AD7804/

AD7808

BIAS

DIVIDER

MUX

DAC D

OUT

COMP

CHANNEL D

CONTROL REG

DATA

DAC

Power-Down Mode

Power-On Reset

BIAS

MUX

DAC C

Standby Mode (All DACs/Individual DACs)

Low Power All CMOS Construction

10-Bit Resolution

Double Buffered DAC Registers

Dual External Reference Capability

DATA

CHANNEL C

CONTROL REG

DAC

BIAS

MUX

DAC B

CHANNEL B

CONTROL REG

DATA

DAC

APPLICATIONS

Optical Disk Drives

Instrumentation and Communication Systems

Process Control and Voltage Setpoint Control

Trim Potentiometer Replacement

Automatic Calibration

BIAS

MUX

DAC A

OUT

PD**

DATA

DAC

CHANNEL A

CONTROL REG

SYSTEM

CONTROL REG

OUT

FSIN

CLKIN

SDIN

INPUT SHIFT

CONTROL LOGIC

GENERAL DESCRIPTION

The AD7804/AD7808 are quad/octal 10-bit digital-to-analog

converters, with serial load capabilities, while the AD7805/AD7809

are quad/octal 10-bit digital-to-analog converters with parallel

load capabilities. These parts operate from a +3.3 V to +5 V

(±10%) power supply and incorporates an on-chip reference.

**ONLY AD7804 SHOWN FOR CLARITY

**SHOWS ADDITIONAL CHANNELS ON THE AD7808

**PIN ON THE AD7808 ONLY

CLR LDAC

AGND DGND

OUT

POWER ON

RESET

REFOUT

REFIN

1.23V REF

AD7805/

AD7809

These DACs provide output signals in the form of V_BIAS± V_SWING

V_SWINGis derived internally from V_BIAS. On-chip control registers

include a system control register and channel control registers.

The system control register has control over all DACs in the

package. The channel control registers allow individual control

of DACs. The complete transfer function of each individual

DAC can be shifted around the V_BIASpoint using an on-chip

Sub DAC. All DACs contain double buffered data inputs,

which allow all analog outputs to be simultaneously updated

using the asynchronous LDAC input.

OUT

BIAS

DIVIDER

MUX

DAC D

OUT

COMP

CHANNEL D

CONTROL REG

DATA

DAC

BIAS

MUX

OUT

DAC C

DAC

CHANNEL C

CONTROL REG

DATA

BIAS

MUX

DAC B

Control Features

Channels Controlled

Main DAC

Sub DAC

DATA

DAC

CHANNEL B

CONTROL REG

Hardware Clear

System Control

Power Down¹

System Standby²

System Clear

Input Coding

Channel Control

Channel Standby²

Channel Clear

V_BIAS

All

BIAS

All

MUX

DAC A

DATA

DAC

CHANNEL A

CONTROL REG

PD**

SYSTEM

CONTROL REG

OUT

Selective

INPUT

CONTROL

LOGIC

OUT

MODE A0 A1

DB9 DB2 DB1 DB0

A2**

CLR LDAC

NOTES

**ONLY AD7805 SHOWN FOR CLARITY

**SHOWS ADDITIONAL CHANNELS ON THE AD7809

**PIN ON THE AD7809 ONLY

¹Power-down function powers down all internal circuitry including the reference.

²Standby functions power down all circuitry except for the reference.

REV. A

Index on Page 26.

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

12 3 4 5 6 7...28

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AD7805CRZ-REEL7 替代型号

型号	品牌	替代类型	描述	数据表
AD7805CRZ-REEL	ADI	完全替代	IC QUAD, PARALLEL, WORD INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, PDSO28, SOIC-28, Di
AD7805CR-REEL	ADI	完全替代	IC PARALLEL, WORD INPUT LOADING, 1.5 us SETTLING TIME, 10-BIT DAC, PDSO28, SOIC-28, Digita

与AD7805CRZ-REEL7相关器件

型号	品牌	获取价格	描述	数据表
AD7806	ETC	获取价格	AD7804/AD7805/AD7806/AD7809: +3.3 V to +5 V Quad/Octal 10-Bit DACs Datasheet (Rev. A.12/9
AD7808	ADI	获取价格	+3.3 V to +5 V Quad/Octal 10-Bit DACs
AD7808_15	ADI	获取价格	3.3 V to 5 V Quad/Octal 10-Bit DACs
AD7808BCHIPS	ADI	获取价格	IC OCTAL, SERIAL INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, UUC, DIE, Digital to Analo
AD7808BN	ADI	获取价格	+3.3 V to +5 V Quad/Octal 10-Bit DACs
AD7808BNZ	ADI	获取价格	IC SERIAL INPUT LOADING, 1.5 us SETTLING TIME, 10-BIT DAC, PDIP24, PLASTIC, DIP-24, Digita
AD7808BNZ	ROCHESTER	获取价格	SERIAL INPUT LOADING, 1.5 us SETTLING TIME, 10-BIT DAC, PDIP24, PLASTIC, DIP-24
AD7808BR	ADI	获取价格	+3.3 V to +5 V Quad/Octal 10-Bit DACs
AD7808BR-REEL	ADI	获取价格	+3.3 V to +5 V Quad/Octal 10-Bit DAC
AD7808BRZ	ADI	获取价格	+3.3 V to +5 V Quad/Octal 10-Bit DAC

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