công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

AD394TD883B bảng dữ liệu(PDF) 8 Page - Analog Devices

tên linh kiện AD394TD883B
Giải thích chi tiết về linh kiện  Up-Compatible Multiplying Quad 12-Bit D/A Converter
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  AD [Analog Devices]
Trang chủ  http://www.analog.com
Logo AD - Analog Devices

AD394TD883B bảng dữ liệu(HTML) 8 Page - Analog Devices

Back Button AD394TD883B Datasheet HTML 4Page - Analog Devices AD394TD883B Datasheet HTML 5Page - Analog Devices AD394TD883B Datasheet HTML 6Page - Analog Devices AD394TD883B Datasheet HTML 7Page - Analog Devices AD394TD883B Datasheet HTML 8Page - Analog Devices AD394TD883B Datasheet HTML 9Page - Analog Devices AD394TD883B Datasheet HTML 10Page - Analog Devices AD394TD883B Datasheet HTML 11Page - Analog Devices AD394TD883B Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 8 / 12 page
background image
AD394
Rev. A | Page 8 of 12
TIMING
The AD394 control signal timing is very straightforward. CS1–
CS4 must maintain a minimum pulse width of at least 400 ns
for a desired operation to occur. When loading data from a bus
into a 12-bit wide data latch, the data must be stable for at least
210 ns before returning CS to a high state. When CS is low, the
data latch is transparent, allowing the data at the input to propa-
gate through to the DAC. Data can change immediately after the
chip select returns high. DAC settling time is measured from
the falling edge of the active chip select.
Table 5. AD394 Timing Specifications, TMIN to TMAX
Symbol
Parameter
Typ
Units
tCS
Chip Select Pulse Width
170
ns min
tDA
Data Access Time
0
ns min
tDS
Data Setup Time
150
ns min
tDH
Data Hold Time
5
ns min
Figure 6. Timing Diagram
ANALOG CIRCUIT DETAILS
Grounding Rules
The AD394 includes two ground connections to minimize
system accuracy degradation arising from grounding errors.
The two ground pins are designated DGND (Pin 17) and
AGND (Pin 23). The DGND pin is the return for the supply
current and serves as the reference point for the digital input
thresholds. Thus, DGND should be connected to the same
ground as the circuitry that drives the digital inputs.
Pin 23, AGND, is a high quality analog ground connection.
This pin should serve as the reference point for all analog
circuitry associated with the AD394. It is recommended that
any analog signal path carrying significant currents have its
own return connection to Pin 23, as shown in Figure 7.
Several complications arise in practical systems, particularly if
the load is referred to a remote ground. These complications
include dc gain errors due to wiring resistance between DAC
and load, noise due to currents from other circuits flowing in
power ground return impedances, and offsets due to multiple
load currents sharing the same signal ground returns. While
the DAC outputs are accurately developed between the output
pin and Pin 23 (AGND), delivering these signals to remote
loads can be a problem. These problems are compounded if a
current booster stage is used, or if multiple packages are used.
Figure 8 illustrates the parasitic impedances that influence
output accuracy.
Figure 7. Recommended Ground Connections
Figure 8. Grounding Errors in Multiple AD394 Systems
An output buffer configured as a subtracter, as shown in
Figure 9, can greatly reduce these errors. First, sensing the
voltage directly at the load with R4 eliminates the effects of
voltage drops in wiring resistance. Second, sensing the remote
ground directly with R3 eliminates the voltage drops caused by
currents flowing through ZGA. Resistors R1 through R4 should
be well matched to achieve maximum rejection of the voltage
appearing across ZGA. Resistors matched to within 1 percent
(including the effects of RW2 and RW3) reduce ground interac-
tion errors by a factor of 100.


Số phần tương tự - AD394TD883B

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Analog Devices
AD394TM AD-AD394TM Datasheet
605Kb / 8P
   uP Compatible Multiplying Quad 12-Bit D/A Converter
More results

Mô tả tương tự - AD394TD883B

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Analog Devices
AD394 AD-AD394 Datasheet
605Kb / 8P
   uP Compatible Multiplying Quad 12-Bit D/A Converter
AD394 AD-AD394_15 Datasheet
626Kb / 12P
   Compatible Multiplying Quad 12-Bit D/A Converter
REV. A
AD396 AD-AD396 Datasheet
644Kb / 8P
   uP Compatible Multiplying Quad 14-Bit D/A Converter?
logo
NXP Semiconductors
AM6012 PHILIPS-AM6012 Datasheet
107Kb / 11P
   12-Bit multiplying D/A converter
August 31, 1994
logo
Intersil Corporation
AD7541 INTERSIL-AD7541_02 Datasheet
164Kb / 8P
   12-Bit, Multiplying D/A Converter
AD7541 INTERSIL-AD7541 Datasheet
53Kb / 8P
   12-Bit, Multiplying D/A Converter
August 1997
logo
Renesas Technology Corp
AD7541 RENESAS-AD7541 Datasheet
480Kb / 8P
   12-Bit, Multiplying D/A Converter
May 2002
logo
Analog Devices
AD390 AD-AD390_17 Datasheet
1Mb / 4P
   Quad 12-Bit Microprocessor-Compatible D/A Converter
AD390 AD-AD390 Datasheet
133Kb / 3P
   Quad 12-Bit Microprocessor-Compatible D/A Converter
REV. A
5962-8850902XA AD-5962-8850902XA Datasheet
1Mb / 3P
   Quad 12-Bit Microprocessor Compatible D/A Converter
REV. A
More results


Html Pages

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


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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