Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

DAC1006LCN Folha de dados(PDF) 11 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças DAC1006LCN
Descrição Electrónicos  uP Compatible, Double-Buffered D to A Converters
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

DAC1006LCN Folha de dados(HTML) 11 Page - National Semiconductor (TI)

Back Button DAC1006LCN Datasheet HTML 7Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 8Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 9Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 10Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 11Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 12Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 13Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 14Page - National Semiconductor (TI) DAC1006LCN Datasheet HTML 15Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 22 page
background image
FIGURE 10 Providing a Bipolar Output Voltage with a Single Op Amp
TLH5688 – 13
FIGURE 11 Increasing the Output Voltage Swing
The output voltage swing can be expanded by adding 2
resistors to
Figure 10 as shown in Figure 11 These added
resistors are used to attenuate the aV voltage The overall
gain AV(b) from the aV terminal to the output of the op
amp determines the most negative output voltage b4(aV)
(when the VREF voltage at the a input of the op amp is
zero) with the component values shown The complete dy-
namic range of VOUT is provided by the gain from the (a)
input of the op amp As the voltage at the VREF pin ranges
from 0V to aV(10231024) the output of the op amp will
range from b10 VDC to a10V (10231024) when using a
a
V voltage of a2500 VDC The 25 VDC reference voltage
can be easily developed by using the LM336 zener which
can be biased through the RFB internal resistor connected
to VCC
53 Op Amp VOS Adjust (Zero Adjust) for Current
Switching Mode
Proper operation of the ladder requires that all of the 2R
legs always go to exactly 0 VDC (ground) Therefore offset
voltage VOS of the external op amp cannot be tolerated as
every millivolt of VOS will introduce 001% of added linearity
error At first this seems unusually sensitive until it becomes
clear the 1 mV is 001% of the 10V reference High resolu-
tion converters of high accuracy require attention to every
detail in an application to achieve the available performance
which is inherent in the part To prevent this source of error
the VOS of the op amp has to be initially zeroed This is the
‘‘zero adjust’’ of the DAC calibration sequence and should
be done first
If the VOS is to be adjusted there are a few points to consid-
er Note that no ‘‘dc balancing’’ resistance should be used
in the grounded positive input lead of the op amp This re-
sistance and the input current of the op amp can also create
errors The low input biasing current of the BI-FET op amps
makes them ideal for use in DAC current to voltage applica-
tions The VOS of the op amp should be adjusted with a
digital input of all zeros to force IOUTe0mA A1kX resistor
can be temporarily connected from the inverting input to
ground to provide a dc gain of approximately 15 to the VOS
of the op amp and make the zeroing easier to sense
54 Full-Scale Adjust
The full-scale adjust procedure depends on the application
circuit and whether the DAC is operated in the current
switching mode or in the voltage switching mode Tech-
niques are given below for all of the possible application
circuits
541 Current Switching with Unipolar Output Voltage
After doing a ‘‘zero adjust’’ set all of the digital input levels
HIGH and adjust the magnitude of VREF for
VOUTeb(ideal VREF)
1023
1024
This completes the DAC calibration
11


Nº de peça semelhante - DAC1006LCN

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
National Semiconductor ...
DAC1006LCN NSC-DAC1006LCN Datasheet
854Kb / 23P
   DOUBLE-BUFFERED D TO A CONVERTERS
More results

Descrição semelhante - DAC1006LCN

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
National Semiconductor ...
DAC1208 NSC-DAC1208 Datasheet
361Kb / 18P
   12-Bit, uP Compatible, Double-Buffered D to A Converters
DAC1000 NSC-DAC1000 Datasheet
854Kb / 23P
   DOUBLE-BUFFERED D TO A CONVERTERS
DAC0830 NSC-DAC0830 Datasheet
532Kb / 28P
   8-Bit P Compatible, Double-Buffered D to A Converters
DAC1231 NSC-DAC1231 Datasheet
813Kb / 4P
   DAC1231/DAC1232 12-Bit, mP Compatible,Double-Buffered D to A Converters
logo
Texas Instruments
DAC1208 TI1-DAC1208_11 Datasheet
612Kb / 20P
[Old version datasheet]   DAC1231/DAC1232 12-Bit, mP Compatible,Double-Buffered D to A Converters
DAC0830 TI-DAC0830 Datasheet
1Mb / 29P
[Old version datasheet]   DAC0830/DAC0832 8-Bit 關P Compatible, Double-Buffered D to A Converters
logo
National Semiconductor ...
ADC080X NSC-ADC080X Datasheet
2Mb / 3P
   8 BIT UP COMPATIBLE A/D CONVERTERS
ADC0801 NSC-ADC0801 Datasheet
1Mb / 41P
   8-Bit uP Compatible A/D Converters
ADC1025 NSC-ADC1025 Datasheet
411Kb / 11P
   10-BIT uP COMPATIBLE A/D CONVERTERS
ADC0844 NSC-ADC0844 Datasheet
467Kb / 20P
   8-Bit uP Compatible A/D Converters with Multiplexer Options
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com