DAC8802

更新时间： 2024-11-05 04:38:27

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
18页	1883K
描述
Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter

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DAC8802 数据手册

DAC8802

www.ti.com

SBAS351A–AUGUST 2005–REVISED DECEMBER 2005

Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter

FEATURES

DESCRIPTION

•

Relative Accuracy: 1 LSB Max

Differential Nonlinearity: 1 LSB Max

2-mA Full-Scale Current ±20%,

with V_REF= ±10 V

0.5 µs Settling Time

Midscale or Zero-Scale Reset

Separate 4Q Multiplying Reference Inputs

Reference Bandwidth: 10 MHz

Reference Dynamics: –105 dB THD

SPI™-Compatible 3-Wire Interface:

50 MHz

Double Buffered Registers Enable

Simultaneous Multichannel Change

Internal Power-On Reset

The DAC8802 is

digital-to-analog converter (DAC) designed to operate

from a single +2.7 V to 5.5 V supply.

a dual, 14-bit, current-output

The applied external reference input voltage V_REF

determines the full-scale output current. An internal

feedback resistor (R_FB) provides temperature tracking

for the full-scale output when combined with an

external I-to-V precision amplifier.

•

doubled-buffered, serial data interface offers

high-speed, 3-wire, SPI and microcontroller

compatible inputs using serial data in (SDI), clock

(CLK), and

chip-select (CS).

common

•

level-sensitive load DAC strobe (LDAC) input allows

simultaneous update of all DAC outputs from

previously loaded input registers. Additionally, an

internal power-on reset forces the output voltage to

zero at system turn-on. An MSB pin allows system

reset assertion (RS) to force all registers to zero code

when MSB = 0, or to half-scale code when MSB = 1.

Industry-Standard Pin Configuration

APPLICATIONS

•

Automatic Test Equipment

Instrumentation

The DAC8802 is available in an TSSOP-16 package.

Digitally Controlled Calibration

REF

A B

Input

DAC A

OUT

GND

D10

D11

D12

D13

Input

DAC B

OUT

SDI

GND

CLK

DAC

Power-On

Reset

Decode

DGND

MSB

LDAC

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.

SPI is a trademark of Motorola, Inc.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...18

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与DAC8802相关器件

型号	品牌	获取价格	描述	数据表
DAC8802IPW	TI	获取价格	Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8802IPWG4	TI	获取价格	Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8802IPWR	TI	获取价格	Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8802IPWRG4	TI	获取价格	Dual, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803	TI	获取价格	Quad, Current Output, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803_15	TI	获取价格	Quad, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803IDBR	TI	获取价格	Quad, Current Output, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803IDBRG4	TI	获取价格	Quad, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803IDBT	TI	获取价格	Quad, Current Output, Serial Input 14-Bit Multiplying Digital-to-Analog Converter
DAC8803IDBTG4	TI	获取价格	14-Bit, Quad Channel, Serial Interface, Multiplying Digital-to-Analog Converter 28-SSOP -4

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