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DAC

853

4

廬

www.ti.com

DAC8574

SLAS377A 鈥?JANUARY 2003 鈥?REVISED JUNE 2003

QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT,

I

2

C INTERFACE DIGITAL-TO-ANALOG CONVERTER

FEATURES

鈥?/div>

Micropower

Operation: 950 碌A(chǔ) at 5 V V

DD

Power-On Reset to Zero

+2.7 V to +5.5 V Analog Power Supply

16-Bit Monotonic

Settling Time: 10碌s to

鹵0.003%

FSR

I

2

C鈩?Interface Up to 3.4 Mbps

Data Transmit Capability

On-Chip Output Buffer Amplifier, Rail-to-Rail

Operation

Double-Buffered Input Register

Address Support for up to Sixteen DAC8574s

Synchronous Update Support for up to 64

Channels

Operation From -40擄C to 105擄C

Small 16 Lead TSSOP Package

DESCRIPTION

The DAC8574 is a low-power, quad channel, 16-bit

buffered voltage output DAC. Its on-chip precision out-

put amplifier allows rail-to-rail output swing to be

achieved. The DAC8574 utilizes an I

2

C compatible two

wire serial interface supporting high-speed interface

mode with address support of up to sixteen DAC8574鈥檚

for a total of 64 channels on the bus.

The DAC8574 requires an external reference voltage

to set the output range of the DAC. The DAC8574

incorporates a power-on-reset circuit that ensures that

the DAC output powers up at zero volts and remains

there until a valid write takes place to the device. The

DAC8574 contains a power-down feature, accessed

via the internal control register, that reduces the current

consumption of the device to 200 nA at 5 V.

The low power consumption of this part in normal

operation makes it ideally suited to portable battery

operated equipment. The power consumption is less

than 5 mW at V

DD

= 5 V reducing to 1 碌W in

power-down mode.

The DAC8574 is available in a 16-lead TSSOP pack-

age.

APPLICATIONS

鈥?/div>

Process Control

Data Acquisition Systems

Closed-Loop Servo Control

PC Peripherals

Portable Instrumentation

V

DD

IOV

DD

V

REF

H

Data

Buffer A

DAC

Register A

DAC A

V

OUT

A

V

OUT

B

V

OUT

C

Data

Buffer D

18

DAC

Register D

DAC D

V

OUT

D

SCL

SDA

I

2

C Block

8

Buffer

Control

Register

Control

Power-Down

Control Logic

Resistor

Network

A0

A1

GND

A2

A3

LDAC

V

REF

L

I2C is a trademark of Philips Corporation.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily in-

clude testing of all parameters.

產(chǎn)品培訓(xùn)模塊
Data Converter Basics
標(biāo)準(zhǔn)包裝
2,000
類別
集成電路 (IC)
家庭
數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器
系列
-
設(shè)置時(shí)間
8µs
位數(shù)
16
數(shù)據(jù)接口
串行
轉(zhuǎn)換器數(shù)目
4
電壓電源
單電源
功率耗散（最大）
2.7mW
工作溫度
-40°C ~ 105°C
安裝類型
表面貼裝
封裝/外殼
16-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝
16-TSSOP
包裝
帶卷 (TR)
輸出數(shù)目和類型
4 電壓，單極
采樣率（每秒）
43k
配用
296-18415-ND - EVALUATION MODULE FOR DAC8574

DAC8574IPWR相關(guān)型號(hào)PDF文件下載

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DAC8574IPWR Datasheet

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