Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

DAC8426AR Datasheet(PDF) 10 Page - Analog Devices

Part # DAC8426AR
Description  Quad 8-Bit Voltage Out CMOS DAC Complete with Internal 10 V Reference
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

DAC8426AR Datasheet(HTML) 10 Page - Analog Devices

Back Button DAC8426AR Datasheet HTML 4Page - Analog Devices DAC8426AR Datasheet HTML 5Page - Analog Devices DAC8426AR Datasheet HTML 6Page - Analog Devices DAC8426AR Datasheet HTML 7Page - Analog Devices DAC8426AR Datasheet HTML 8Page - Analog Devices DAC8426AR Datasheet HTML 9Page - Analog Devices DAC8426AR Datasheet HTML 10Page - Analog Devices DAC8426AR Datasheet HTML 11Page - Analog Devices DAC8426AR Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 10 / 12 page
background image
DAC8426
–10–
REV. C
Figure 6. Bipolar Operation
CONNECTION AND LAYOUT GUIDELINES
Layout and design techniques used in the interface between dig-
ital and analog circuitry require special attention to detail. The
following considerations should be evaluated prior to PCB layout.
1. Return signal paths through the ground system should be
carefully considered. High-speed digital logic current pulses
traveling on return ground traces generate glitches that can be
radiated to the analog circuits if the ground path layout pro-
duces loop antennas. Ground planes can minimize this situa-
tion. Separate digital and analog grounding areas to minimize
crosstalk. Ideally a single common-point ground should be on
the same PCB board as the DAC8426. The analog ground re-
turns should take advantage of the appropriate placement of
power supply bypass capacitors.
2. For optimum performance, bypass VDD and VSS (if using
negative supply voltage) with 0.1
µF ceramic disk capacitors
to shunt high-frequency spikes. Also use in parallel 6.8
µF to
10
µF capacitors to provide a charge reservoir for lower fre-
quency load change requirements. The reference output
(VREFOUT) should be bypassed with a 10 µF tantalum ca-
pacitor to optimize reference output stability during data in-
put changes. This helps to minimize digital crosstalk.
Table III. Bipolar Output Voltage as a Function of Digital
Input Code
Digital Input
Analog Output
Code
Voltage (= D/256
× 10 V)
255
9.922 V
Full-Scale (FS)
254
9.844 V
FS-1 LSB
129
0.078 V
128
0.000 V
Zero-Scale
127
–0.078 V
1
–9.922 V
0
–10.000 V
Neg Full-Scale
Figure 7. AGND Biasing Scheme Providing Offset Output
Range
3. Power Supply Sequencing—No special requirements exist
with the DAC8426. However, users should be aware that of-
ten the 5 V logic supply may be powered up momentarily
prior to the +15 V analog supply. In this situation, the
DAC8426 ESD input protection diodes will forward bias if
the applied input logic is at logic “1”. No damage will result
to the input since the DAC8426 is designed to withstand mo-
mentary currents of up to 130 mA. This situation will likely
exist for any DAC or ADC operating from a separate analog
supply.
4. ESD input protection—Attention has been given in the de-
sign of the DAC8426 to ESD sensitivity. Using the human
body model test technique (MIL-STD 3015.4) the DAC8426
generally will withstand 1500 V ESD transients on all pins.
Handling and testing prior to PCB insertion generally exposes
ICs to the toughest environment they will experience. Once
the IC is soldered in the PCB, it is still important to consider
any traces that connect to PCB edge connectors. These traces
should be protected with appropriate devices especially if the
boards will experience field replacement or adjustment. Han-
dling the exposed edge connectors by field maintenance
people in a low humidity environment can produce 20 kV
ESD transients which will be detrimental to almost any inte-
grated IC connected to the edge connector.


Similar Part No. - DAC8426AR

ManufacturerPart #DatasheetDescription
logo
Analog Devices
DAC8426 AD-DAC8426_15 Datasheet
276Kb / 12P
   Quad 8-Bit Voltage Out CMOS DAC Complete with Internal 10 V Reference
More results

Similar Description - DAC8426AR

ManufacturerPart #DatasheetDescription
logo
Analog Devices
DAC8426 AD-DAC8426_15 Datasheet
276Kb / 12P
   Quad 8-Bit Voltage Out CMOS DAC Complete with Internal 10 V Reference
logo
Texas Instruments
DAC80504 TI1-DAC80504 Datasheet
85Kb / 4P
[Old version datasheet]   Quad, 16-Bit, SPI Voltage Output DAC With Internal Reference
DAC81404 TI-DAC81404 Datasheet
3Mb / 45P
[Old version datasheet]   DAC81404 Quad, 16-Bit, High-Voltage-Output DAC With Internal Reference
logo
Wolfson Microelectronic...
WM2631 WOLFSON-WM2631 Datasheet
131Kb / 13P
   Octal 10-bit, Serial Input, Voltage Output DAC with Internal Reference
WM2637 WOLFSON-WM2637 Datasheet
262Kb / 11P
   Dual 10-Bit Serial Input Voltage Output DAC with Internal Reference
logo
Analog Devices
AD7225 AD-AD7225 Datasheet
339Kb / 12P
   LC2MOS Quad 8-Bit DAC with Separate Reference Inputs
REV. B
AD7225LNZ AD-AD7225LNZ Datasheet
400Kb / 24P
   LC2MOS Quad 8-Bit DAC with Separate Reference Inputs
REV. C
logo
Wolfson Microelectronic...
WM2636 WOLFSON-WM2636 Datasheet
392Kb / 10P
   12-bit Serial Input Voltage Output DAC with Internal Reference
WM2639 WOLFSON-WM2639 Datasheet
342Kb / 10P
   12-Bit Parallel Input Voltage Output DAC with Internal Reference
WM2626 WOLFSON-WM2626 Datasheet
109Kb / 11P
   Low Power Dual 8-bit Serial Input DAC with Internal Reference
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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