AD7304BR

更新时间： 2024-01-28 01:43:42

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
14页	931K
描述
+3 V/+5 V, Rail-to-Rail Quad, 8-Bit DAC

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数据手册
替代型号

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AD7304BR 数据手册

+3 V/+5 V, Rail-to-Rail

Quad, 8-Bit DAC

AD7304/AD7305*

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Four 8-Bit DACs in One Package

+3 V, +5 V and ꢀ5 V Operation

Rail-to-Rail REF-Input to Voltage Output Swing

2.6 MHz Reference Multiplying Bandwidth

Compact 1.1 mm Height TSSOP 16-/20-Lead Package

Internal Power ON Reset

SPI Serial Interface Compatible—AD7304

Fast Parallel Interface—AD7305

40 ꢁA Power Shutdown

B V A

REF REF

PWR ON

RESET

INPUT

REG A

DAC A

REG

DAC A

DAC B

DAC C

DAC D

OUT

INPUT

REG B

DAC B

REG

SDI/SHDN

CLK

INPUT

REG C

DAC C

REG

OUT

SERIAL

REG

INPUT

REG D

DAC D

REG

APPLICATIONS

Automotive Output Span Voltage

Instrumentation, Digitally Controlled Calibration

Pin-Compatible AD7226 Replacement when V_DD< 5.5 V

AD7304

C V D

REF

GND

CLR LDAC

REF

GENERAL DESCRIPTION

PWR ON

RESET

INPUT

REG A

DAC A

DAC B

DAC C

DAC D

REG

OUT

The AD7304/AD7305 are quad, 8-bit DACs that operate from a

single +3 V to +5 V supply or 5 V supplies. The AD7304 has a

serial interface, while the AD7305 has a parallel interface. Inter-

nal precision buffers swing rail-to-rail. The reference input range

includes both supply rails allowing for positive or negative full-

scale output voltages. Operation is guaranteed over the supply

voltage range of +2.7 V to +5.5 V, consuming less than 9 mW

from a +3 V supply.

DB0

DB1

DB2

DB3

DB4

DB5

DB6

INPUT

REG B

DAC B

REG

DAC C

REG

INPUT

REG C

OUT

INPUT

REG D

DAC D

REG

OUT

A0/SHDN

DECODE

AD7305

The full-scale voltage output is determined by the external refer-

ence input voltage applied. The rail-to-rail V_REFinput to DAC

LDAC

GND

_OUTallows for a full-scale voltage set equal the positive supply

_DD, the negative supply V_SSor any value in between.

An internal power ON reset places both parts in the zero-scale

state at turn ON. A 40 µA power shutdown (SHDN) feature is

activated on both parts by tristating the SDI/SHDN pin on the

AD7304, and tristating the A0/SHDN address pin on the

AD7305.

The AD7304’s doubled-buffered serial-data interface offers high

speed, three-wire, SPI and microcontroller compatible inputs

using data in (SDI), clock (CLK) and chip select (CS) pins.

Additionally, an internal power-on reset sets the output to zero

scale.

The AD7304/AD7305 are specified over the extended industrial

(–40°C to +85°C), and the automotive (–40°C to +125°C)

temperature ranges. AD7304s are available in 16-lead plastic

DIP (N-16), and wide-body SOL-16 (R-16) packages. The

parallel input AD7305 is available in the 20-lead plastic DIP

(N-20), and the SOL-20 (R-20) surface mount package. For

ultracompact applications the thin 1.1 mm TSSOP-16 (RU-16)

package will be available for the AD7304, while the TSSOP-20

(RU-20) will house the AD7305.

The parallel input AD7305 uses a standard address decode

along with the WR control line to load data into the input regis-

ters. The double buffered architecture allows all four input

registers to be preloaded with new values, followed by a LDAC

control strobe which copies all the new data into the DAC regis-

ters thereby updating the analog output values. When operating

from less than +5.5 V, the AD7305 is pin-compatible with the

popular industry standard AD7226.

*Protected under Patent Number 5684481.

REV. A

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...14

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AD7304BR 替代型号

型号	品牌	替代类型	描述	数据表
AD7304BRUZ	ADI	完全替代	+3V/+5V, Rail-to-Rail Quad, 8-Bit DAC Serial-IN
AD7304BRZ	ADI	完全替代	3 V/5 V, Rail-to-Rail Quad, 8-Bit DAC
AD7304BRU-REEL7	ADI	完全替代	3 V/5 V, Rail-to-Rail Quad, 8-Bit DAC

与AD7304BR相关器件

型号	品牌	获取价格	描述	数据表
AD7304BR-REEL	ADI	获取价格	3 V/5 V, Rail-to-Rail Quad, 8-Bit DAC
AD7304BR-REEL	ROCHESTER	获取价格	SERIAL INPUT LOADING, 1 us SETTLING TIME, 8-BIT DAC, PDSO16, MS-013AA, SOIC-16
AD7304BR-REEL7	ADI	获取价格	IC SERIAL INPUT LOADING, 1 us SETTLING TIME, 8-BIT DAC, PDSO16, MS-013AA, SOIC-16, Digital
AD7304BRU	ADI	获取价格	+3 V/+5 V, Rail-to-Rail Quad, 8-Bit DAC
AD7304BRU	ROCHESTER	获取价格	SERIAL INPUT LOADING, 1 us SETTLING TIME, 8-BIT DAC, PDSO16, 1.10 MM HEIGHT, MO-153AB, TSS
AD7304BRU-REEL7	ADI	获取价格	3 V/5 V, Rail-to-Rail Quad, 8-Bit DAC
AD7304BRU-REEL7	ROCHESTER	获取价格	SERIAL INPUT LOADING, 1 us SETTLING TIME, 8-BIT DAC, PDSO16, 1.10 MM HEIGHT, MO-153AB, TSS
AD7304BRUZ	ADI	获取价格	+3V/+5V, Rail-to-Rail Quad, 8-Bit DAC Serial-IN
AD7304BRUZ-REEL7	ADI	获取价格	+3V/+5V, Rail-to-Rail Quad, 8-Bit DAC Serial-IN
AD7304BRUZ-REEL7	ROCHESTER	获取价格	SERIAL INPUT LOADING, 1 us SETTLING TIME, 8-BIT DAC, PDSO16, 1.10 MM HEIGHT, MO-153AB, TSS

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