參數(shù)資料
型號: DAC8812B
廠商: Texas Instruments, Inc.
英文描述: Dual, Serial Input 16-Bit Multiplying Digital-to-Analog Converter
中文描述: 雙路,串行輸入16位乘法數(shù)字到模擬轉(zhuǎn)換器
文件頁數(shù): 1/18頁
文件大?。?/td> 1671K
代理商: DAC8812B
DAC8812
www.ti.com
FEATURES
Relative Accuracy: 1 LSB Max
Differential Nonlinearity: 1 LSB Max
2-mA Full-Scale Current
±
20%,
with V
REF
=
±
10 V
0.5
μ
s 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
Industry-Standard Pin Configuration
DESCRIPTION
The
DAC8812
digital-to-analog converter (DAC) designed to operate
from a single +2.7 V to +5.5 V supply.
APPLICATIONS
Automatic Test Equipment
Instrumentation
Digitally Controlled Calibration
16
DAC
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
EN
A
B
SDI
CS
CLK
DGND
RS
MSB
LDAC
R
R
Power-On
Reset
R
DACB
Register
DACA
Register
R
DACA
DACB
Decode
Input
Register
Input
Register
V
AB
REF
R
A
FB
R
B
FB
I
A
OUT
A
A
GND
I
B
OUT
A
B
GND
DAC8812
SBAS349A–AUGUST 2005–REVISED DECEMBER 2005
Dual, Serial Input 16-Bit Multiplying Digital-to-Analog Converter
is
a
dual,
16-bit,
current-output
The applied external reference input voltage V
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.
A
high-speed,
compatible inputs using serial data in (SDI), clock
(CLK),
and
a
chip-select
level-sensitive load DAC strobe (LDAC) input allows
simultaneous
update
of
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.
double-buffered,
serial
SPI
data
and
interface
microcontroller
offers
3-wire,
(CS).
A
common
all
DAC
outputs
from
The DAC8812 is available in an TSSOP-16 package.
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.
Copyright 2005, Texas Instruments Incorporated
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