參數(shù)資料
型號(hào): DAC7821IRGPT
廠商: Texas Instruments, Inc.
英文描述: 12-Bit, Parallel Input, Multiplying Digital-to-Analog Converter
中文描述: 12位,并行輸入,乘法數(shù)字到模擬轉(zhuǎn)換器
文件頁數(shù): 1/18頁
文件大?。?/td> 1597K
代理商: DAC7821IRGPT
DAC7821
www.ti.com
FEATURES
2.5 V to 5.5 V Supply Operation
Fast Parallel Interface:
17ns Write Cycle
Update Rate of 20.4 MSPS
10 MHz Multiplying Bandwidth
±
10 V Reference Input
Low Glitch Energy: 5 nV-s
Extended Temperature Range:
–40
°
C to +125
°
C
20-Lead QFN and 20-Lead TSSOP Packages
12-Bit Monotonic
±
1 LSB INL
4-Quadrant Multiplication
Power-On Reset with Brownout Detection
Readback Function
Industry-Standard Pin Configuration
DESCRIPTION
The DAC7821 is a CMOS 12-bit current output
digital-to-analog
converter
operates from a single 2.5 V to 5.5 V power supply,
making it suitable to battery-powered and many other
applications.
APPLICATIONS
Portable Battery-Powered Instruments
Waveform Generators
Analog Processing
Programmable Amplifiers and Attenuators
Digitally-Controlled Calibration
Programmable Filters and Oscillators
Composite Video
Ultrasound
DACRegister
Power-On
Reset
Control
Logic
DAC7821
R
R
FB
V
REF
V
DD
I
1
OUT
I
2
OUT
GND
DB0
DB11
12-Bit
R-2RDAC
InputLatch
ParallelBus
CS
R/
W
DAC7821
SBAS365A–OCTOBER 2005–REVISED FEBRUARY 2006
12-Bit, Parallel Input, Multiplying
Digital-to-Analog Converter
(DAC).
This
device
This DAC operates with a fast parallel interface. Data
readback allows the user to read the contents of the
DAC register via the DB pins. On power-up, the
internal register and latches are filled with zeroes and
the DAC outputs are at zero scale.
The
multiplication
multiplying
external reference input voltage (V
REF
) determines
the full-scale output current. An integrated feedback
resistor (R
) provides temperature tracking and
full-scale voltage output when combined with an
external current-to-voltage precision amplifier.
DAC7821
offers
excellent
with
10
MHz.
4-quadrant
large
The
applied
characteristics,
bandwidth
signal
of
The DAC7821 is available in a 20-lead TSSOP
package as well as a small 20-lead QFN package
(available Q2 2006).
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.
Copyright 2005–2006, Texas Instruments Incorporated
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