Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

DAC56U Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce DAC56U
Description  Monolithic 16-Bit Resolution DIGITAL-TO-ANALOG CONVERTER
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

DAC56U Fiches technique(HTML) 4 Page - Texas Instruments

  DAC56U Datasheet HTML 1Page - Texas Instruments DAC56U Datasheet HTML 2Page - Texas Instruments DAC56U Datasheet HTML 3Page - Texas Instruments DAC56U Datasheet HTML 4Page - Texas Instruments DAC56U Datasheet HTML 5Page - Texas Instruments DAC56U Datasheet HTML 6Page - Texas Instruments  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
®
DAC56
4
OPERATING INSTRUCTIONS
The accuracy of a D/A converter is described by the transfer
function as shown in Figure 1. Digital input to analog output
converter relationships are shown in Table I. The errors in
the D/A converter are combinations of analog errors due to
the linear circuitry, matching and tracking properties of the
ladder and scaling networks, power supply rejection, and
reference errors. In summary, these errors consist of initial
errors including gain, offset, linearity, differential linearity,
and power supply sensitivity. Gain drift over temperature
rotates the line (Figure 1) about the bipolar zero point and
offset drift shifts the line left or right over the operating
temperature range. Most of the offset and gain drift is due to
the drift of the internal reference zener diode with tempera-
ture or time.
The converter is designed so that these drifts are in opposite
directions. This way the bipolar zero voltage is virtually
unaffected by variations in the reference voltage.
DIGITAL INPUT CODES
The DAC56 accepts serial input data (MSB first) in Binary
Two’s Complement form—Refer to Table I for input/output
relationships.
POWER SUPPLY CONNECTIONS
Power supply decoupling capacitors should be added as
shown in the Connection Diagram (Figure 2), for optimum
performance and noise rejection.
These capacitors (1
µF tantalum recommended) should be
connected as close as possible to the converter.
FIGURE 2. Connection Diagram.
MSB ERROR ADJUSTMENT (OPTIONAL)
Differential linearity error at all codes of the DAC56 is
guaranteed to meet specifications without an external adjust-
ment. However, if adjustment of the differential linearity
error at bipolar zero is desired, it can be trimmed essentially
to zero using the circuit as shown in Figure 3.
FIGURE 3. MSB Adjustment Circuit.
After allowing ample warm-up time (5 to 10 minutes) to
assure stable operation, select the input code FFFF
H. Mea-
sure the output voltage using a 6-1/2 digit voltmeter and
record the measurement. Change the digital input code to
0000
H. Adjust the 100kΩ potentiometer (TCR of 100ppm
per
°C or less is recommended) to make the output voltage
read 1LSB more than the voltage reading of the previous
code (ex. 1LSB = 92
µV at FSR = 6V).
If the MSB adjustment circuit is not used, pins 14 and 15
should be left open.
FIGURE 1. Input vs Output for an Ideal Bipolar D/A
Converter.
DIGITAL INPUT
ANALOG OUTPUT
Binary Two’s
Voltage (V),
Current (mA),
Complement (BTC)
DAC Output
VOUT Mode
IOUT Mode
7FFFH
+ Full Scale
+2.999908
–0.999970
8000H
– Full Scale
–3.000000
+1.000000
0000H
Bipolar Zero
0.000000
0.000000
FFFFH
Zero –1LSB
–0.000092
+0.030500
µA
TABLE I. Digital Input to Analog Output Relationship.
470k
200k
100k
(1)
Trim 15
MSB Adjust 14
1 –V
S
NOTE: (1) 10-15 turns.
Gain
Drift
Offset
Drift
Bipolar
Zero
0111...1111
1000...0000
Digital Output
(+FSR/2) –1LSB
–FSR/2
All Bits
On
* See Table I for digital code definitions.
16-Bit
DAC Latch
16-Bit Serial
to Parallel
Conversion
Control
Logic and
Level
Shifting
Circuit
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
16-Bit
I
OUT
DAC
–5V
+5V
–5V
1µF
1µF
1µF
LCOM
–V
S
+V
L
NC
CLK
LE
Data
–V
L
+V
S
SJ
R
F
V
OUT
(±3.0V)
TRIM
MSB ADJ
I
OUT
Analog
Output
1µF
+5V
ACOM
NOTES:
= Analog Common
= Logic Common


Numéro de pièce similaire - DAC56U

FabricantNo de pièceFiches techniqueDescription
logo
Burr-Brown (TI)
DAC56 BURR-BROWN-DAC56 Datasheet
165Kb / 5P
   Monolithic 16-Bit Resolution DIGITAL-TO-ANALOG CONVERTER
logo
Texas Instruments
DAC5652 TI-DAC5652 Datasheet
323Kb / 22P
[Old version datasheet]   DUAL, 10-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5652 TI1-DAC5652 Datasheet
642Kb / 27P
[Old version datasheet]   DUAL, 10-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5652-EP TI1-DAC5652-EP Datasheet
643Kb / 27P
[Old version datasheet]   DUAL 10-BIT 200-MSPS DIGITAL-TO-ANALOG CONVERTER
DAC5652-EP TI-DAC5652-EP_15 Datasheet
636Kb / 28P
[Old version datasheet]   DUAL 10-BIT, 200 MSPS, DIGITAL-TO-ANALOG CONVERTER
More results

Description similaire - DAC56U

FabricantNo de pièceFiches techniqueDescription
logo
Burr-Brown (TI)
DAC1600 BURR-BROWN-DAC1600 Datasheet
250Kb / 6P
   MONOLITHIC 16 BIT RESOLUTION DIGITAL - TO - ANALOG CONVERTER
DAC56 BURR-BROWN-DAC56 Datasheet
165Kb / 5P
   Monolithic 16-Bit Resolution DIGITAL-TO-ANALOG CONVERTER
logo
Texas Instruments
DAC1201 TI1-DAC1201 Datasheet
322Kb / 6P
[Old version datasheet]   Monolithic Microprocessor-Compatible 12-Bit Resolution DIGITAL-TO-ANALOG CONVERTER
logo
Burr-Brown (TI)
PCM56P BURR-BROWN-PCM56P Datasheet
94Kb / 9P
   Serial Input 16-Bit Monolithic DIGITAL-TO-ANALOG CONVERTER
PCM66P BURR-BROWN-PCM66P Datasheet
92Kb / 7P
   16-Bit CMOS Monolithic Audio DIGITAL-TO-ANALOG CONVERTER
logo
Micro Analog systems
MAS6501 MAS-MAS6501 Datasheet
205Kb / 16P
   16-Bit Analog-to-Digital Converter
logo
DATEL, Inc.
5962-8953101HXA DATEL-5962-8953101HXA Datasheet
149Kb / 1P
   16-Bit Digital To Analog Converter
5962-8953102HXC DATEL-5962-8953102HXC Datasheet
149Kb / 1P
   16-Bit Digital To Analog Converter
logo
SHENZHEN FUMAN ELECTRON...
SC8211 FUMAN-SC8211 Datasheet
592Kb / 9P
   16 Bit Digital to Analog Converter
logo
Burr-Brown (TI)
ADC76 BURR-BROWN-ADC76 Datasheet
113Kb / 8P
   16-Bit ANALOG-TO-DIGITAL CONVERTER
More results


Html Pages

1 2 3 4 5 6


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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