參數(shù)資料
型號(hào)： DAC7742
英文描述： 16-Bit, Single Channel DIGITAL-TO-ANALOG CONVERTER With Internal Reference and Parallel Interface
中文描述： 16位，單通道數(shù)字到模擬轉(zhuǎn)換器，具有內(nèi)部參考和并行接口
文件頁(yè)數(shù)： 1/19頁(yè)
文件大小： 376K
代理商： DAC7742
DAC7742
16-Bit, Single Channel
DIGITAL-TO-ANALOG CONVERTER
With Internal Reference and Parallel Interface
DAC7742
SBAS256 – DECEMBER 2002
www.ti.com
Copyright 2002, Texas Instruments Incorporated
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.
Buffer
+10V
Reference
Control
Logic
Input
Register
I/O
Buffer
DAC
Register
DAC
REFEN
CS
R/W
RSTSEL
Data I/O
V
DD
V
REF
V
SS
V
CC
REFADJ
REF
OUT
REF
IN
R
OFFSET
RFB2
RFB1
SJ
V
OUT
AGND
DGND
LDAC
RST
16
DESCRIPTION
The DAC7742 is a 16-bit Digital-to-Analog Converter (DAC)
that provides 16 bits of monotonic performance over the
specified operating temperature range and offers a +10V,
low-drift internal reference. Designed for automatic test equip-
ment and industrial process control applications, the DAC7742
output swing can be configured in a
±
10V,
±
5V, or +10V
range. The flexibility of the output configuration allows the
DAC7742 to provide both unipolar and bipolar operation by
pin strapping. The DAC7742 includes a high-speed output
amplifier with a maximum settling time of 5
μ
s to
±
0.003%
FSR for a 20V full-scale change and only consumes 100mW
(typical) of power.
The DAC7742 features a standard 16-bit parallel interface with
double buffering to allow asynchronous updates of the analog
output, and data read-back to support data integrity verification
prior to an update. A user-programmable reset control allows
the DAC output to reset to min-scale (FFFF
H
) or mid-scale
(7FFF
H
) overriding the DAC register values. The DAC7742 is
available in an LQFP-48 package and three performance
grades specified to operate from
–
40
°
C to +85
°
C.
FEATURES
G
LOW POWER: 150mW Maximum
G
+10V INTERNAL REFERENCE
G
UNIPOLAR OR BIPOLAR OPERATION
G
SETTLING TIME: 5
μ
s to
±
0.003% FSR
G
16-BIT MONOTINICITY, –40
°
C TO +85
°
C
G
±
10V,
±
5V OR +10V CONFIGURABLE VOLTAGE
OUTPUT
G
RESET TO MIN-SCALE OR MID-SCALE
G
DOUBLE-BUFFERED DATA INPUT
G
INPUT REGISTER DATA READBACK
G
SMALL LQFP-48 PACKAGE
G
SUPPORTS TRANSPARENT DATA INPUT
OPERATION
APPLICATIONS
G
PROCESS CONTROL
G
ATE PIN ELECTRONICS
G
CLOSED-LOOP SERVO CONTROL
G
MOTOR CONTROL
G
DATA ACQUISITION SYSTEMS
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 include
testing of all parameters.
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DAC7742Y/2KG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Single Ch. Parallel Ifc RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
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