Datasheet > DAC8822QCDBTRG4

DAC8822QCDBTRG4

更新时间： 2024-11-05 04:09:39

品牌	Logo	应用领域
BB		转换器光电二极管
页数	文件大小	规格书
24页	500K
描述
16-Bit, Dual, Parallel Input, Multiplying Digital-to-Analog Converter

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DAC8822QCDBTRG4 数据手册

DAC8822

SBAS390A–DECEMBER 2006–REVISED MARCH 2007

16-Bit, Dual, Parallel Input, Multiplying

Digital-to-Analog Converter

FEATURES

DESCRIPTION

•

±0.5LSB DNL

The DAC8822 dual, multiplying digital-to-analog

converter (DAC) is designed to operate from a single

2.7V to 5.5V supply.

±1LSB INL

Low Noise: 12nV/√Hz

Low Power Operation:

I_DD= 1µA per Channel at 2.7V

2mA Full-Scale Current, with V_REF= 10V

Settling Time: 0.5µs

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, current-to-voltage (I/V) precision

amplifier.

16-Bit Monotonic

4-Quadrant Multiplying Reference Inputs

Reference Bandwidth: 10MHz

Reference Input: ±18V

A RSTSEL pin allows system reset assertion (RS) to

force all registers to zero code when RSTSEL = '0',

or to midscale code when RSTSEL = '1'. Additionally,

an internal power-on reset forces all registers to zero

or midscale code at power-up, depending on the

state of the RSTSEL pin.

Reference Dynamics: –105 THD

Midscale or Zero Scale Reset

Analog Power Supply: +2.7V to +5.5V

TSSOP-38 Package

parallel

interface

offers

high-speed

communications. The DAC8822 is packaged in a

space-saving TSSOP-38 package and has an

industry-standard pinout. The device is specified

from –40°C to +125°C.

Industry-Standard Pin Configuration

Pin-Compatible with the 14-Bit DAC8805

Temperature Range: –40°C to +125°C

For

a 14-bit, pin-compatible version, see the

DAC8805.

APPLICATIONS

•

Automatic Test Equipment

Instrumentation

Digitally Controlled Calibration

Industrial Control PLCs

DGND

V_DD

R₁A R_COM

V_REFA R_OFS

R_FBA

R₁A

R₂A

R_OFSA

R_FBA

Input A

DAC A

Parallel

Bus

D15

DAC A

DAC B

I_OUT

Interface

AGNDA

Input B

DAC B

I_OUTB

LDAC

Control

Logic

AGNDB

R₁B

R₂B

R_OFSB

R_FBB

Power-On

Reset

RSTSEL

R₁B

R_COMB

V_REFB R_OFS

R_FBB

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.

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...24

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