Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

AD7841 Datenblatt(PDF) 9 Page - Analog Devices

Teilenummer AD7841
Bauteilbeschribung  Octal 14-Bit, Parallel Input, Voltage-Output DAC
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7841 Datenblatt(HTML) 9 Page - Analog Devices

Back Button AD7841 Datasheet HTML 4Page - Analog Devices AD7841 Datasheet HTML 5Page - Analog Devices AD7841 Datasheet HTML 6Page - Analog Devices AD7841 Datasheet HTML 7Page - Analog Devices AD7841 Datasheet HTML 8Page - Analog Devices AD7841 Datasheet HTML 9Page - Analog Devices AD7841 Datasheet HTML 10Page - Analog Devices AD7841 Datasheet HTML 11Page - Analog Devices AD7841 Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 9 / 12 page
background image
AD7841
–9–
REV. 0
Power-On with
CLR Low
The output stage of the AD7841 has been designed to allow
output stability during power-on. If
CLR is kept low during
power-on, then just after power is applied to the AD7841, the
situation is as depicted in Figure 14. G1, G4 and G6 are open
while G2, G3 and G5 are closed.
G1
G2
G4
G3
G6
G5
DUTGND
VOUT
R
R
14k
DAC
Figure 14. Output Stage with VDD < 7 V or VSS > –3 V; CLR
Low
VOUT is kept within a few hundred millivolts of DUTGND via
G5 and a 14 k
Ω resistor. This thin-film resistor is connected in
parallel with the gain resistors of the output amplifier. The
output amplifier is connected as a unity gain buffer via G3, and
the DUTGND voltage is applied to the buffer input via G2. The
amplifier’s output is thus at the same voltage as the DUTGND
pin. The output stage remains configured as in Figure 14 until
the voltage at VDD exceeds 7 V and VSS is more negative than
–3 V. By now the output amplifier has enough headroom to
handle signals at its input and has also had time to settle. The
internal power-on circuitry opens G3 and G5 and closes G4 and
G6. This situation is shown in Figure 15. Now the output ampli-
fier is configured in its noise gain configuration via G4 and G6.
The DUTGND voltage is still connected to the noninverting
input via G2 and this voltage appears at VOUT.
G1
G2
G4
G3
G6
G5
DUTGND
VOUT
R
R
14k
DAC
Figure 15. Output Stage with VDD > 7 V and VSS < –3 V; CLR
Low
VOUT has been disconnected from the DUTGND pin by the
opening of G5, but will track the voltage present at DUTGND
via the configuration shown in Figure 15.
When
CLR is taken back high, the output stage is configured as
shown in Figure 16. The internal control logic closes G1 and
opens G2. The output amplifier is connected in a noninverting
gain-of-two configuration. The voltage that appears on the VOUT
pins is determined by the data present in the DAC registers.
G1
G2
G4
G3
G6
G5
DUTGND
VOUT
R
R
14k
DAC
Figure 16. Output Stage After
CLR Is Taken High
Power-On with
CLR High
If
CLR is high on the application of power to the device, the
output stages of the AD7841 are configured as in Figure 17
while VDD is less than 7 V and VSS is more positive than –3 V. G1 is
closed and G2 is open, thereby connecting the output of the
DAC to the input of its output amplifier. G3 and G5 are closed
while G4 and G6 are open, thus connecting the output amplifier as
a unity gain buffer. VOUT is connected to DUTGND via G5
through a 14 k
Ω resistor until V
DD exceeds 7 V and VSS is more
negative than –3 V.
G1
G2
G4
G3
G6
G5
DUTGND
VOUT
R
R
14k
DAC
Figure 17. Output Stage Powering Up with
CLR High
While VDD < 7 V or VSS > –3 V
When the difference between the supply voltages reaches +10 V,
the internal power-on circuitry opens G3 and G5 and closes G4
and G6 configuring the output stage as shown in Figure 18.
G1
G2
G4
G3
G6
G5
DUTGND
VOUT
R
R
14k
DAC
Figure 18. Output Stage Powering Up with
CLR High
When VDD > V and VSS < –3 V


Ähnliche Teilenummer - AD7841

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
AD7841 AD-AD7841 Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841ASZ AD-AD7841ASZ Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841ASZ-REEL AD-AD7841ASZ-REEL Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841BSZ AD-AD7841BSZ Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841BSZ AD-AD7841BSZ Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
More results

Ähnliche Beschreibung - AD7841

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
AD7841ASZ AD-AD7841ASZ Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841 AD-AD7841_15 Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7841BSZ AD-AD7841BSZ Datasheet
442Kb / 13P
   Octal 14-Bit, Parallel Input, Voltage-Output DAC
REV. B
AD7839ASZ AD-AD7839ASZ Datasheet
157Kb / 12P
   Octal 13-Bit, Parallel Input, Voltage-Output DAC
REV. 0
AD7839 AD-AD7839 Datasheet
153Kb / 12P
   Octal 13-Bit, Parallel Input, Voltage-Output DAC
REV. 0
AD7839 AD-AD7839_15 Datasheet
157Kb / 12P
   Octal 13-Bit, Parallel Input, Voltage-Output DAC
REV. 0
logo
Maxim Integrated Produc...
MAX7841 MAXIM-MAX7841 Datasheet
326Kb / 14P
   Octal, 14-Bit Voltage-Output DAC with Parallel Interface
Rev 0; 7/03
MAX5264 MAXIM-MAX5264 Datasheet
451Kb / 16P
   Octal, 14-Bit Voltage-Output DAC with Parallel Interface for ATE
Rev 0; 5/00
logo
Wolfson Microelectronic...
WM2619 WOLFSON-WM2619 Datasheet
124Kb / 9P
   12-bit Parallel Input Voltage Output DAC
logo
Cadeka Microcircuits LL...
SPT5400 CADEKA-SPT5400 Datasheet
156Kb / 8P
   13-BIT, OCTAL VOLTAGE-OUTPUT DAC WITH PARALLEL INTERFACE
More results


Html Pages

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


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
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