Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

AD7846JP Datenblatt(PDF) 8 Page - Analog Devices

Teilenummer AD7846JP
Bauteilbeschribung  16-Bit Voltage Output DAC
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7846JP Datenblatt(HTML) 8 Page - Analog Devices

Back Button AD7846JP Datasheet HTML 4Page - Analog Devices AD7846JP Datasheet HTML 5Page - Analog Devices AD7846JP Datasheet HTML 6Page - Analog Devices AD7846JP Datasheet HTML 7Page - Analog Devices AD7846JP Datasheet HTML 8Page - Analog Devices AD7846JP Datasheet HTML 9Page - Analog Devices AD7846JP Datasheet HTML 10Page - Analog Devices AD7846JP Datasheet HTML 11Page - Analog Devices AD7846JP Datasheet HTML 12Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 16 page
background image
REV. E
–8–
AD7846
S1
VREF+
VREF–
DAC1
DB15–DB12
DB15–DB12
SEGMENT 1
SEGMENT 16
S3
S15
S17
S16
S14
S4
S2
DAC2
DAC3
12 BIT DAC
DB11–DB0
R
R
VOUT
RIN
A3
A2
A1
Figure 16. D/A Conversion
Output Stage
The output stage of the AD7846 is shown in Figure 17. It is
capable of driving a 2 k
Ω/1000 pF load. It also has a resistor
feedback network which allows the user to configure it for gains
of one or two. Table I shows the different output ranges that are
possible.
An additional feature is that the output buffer is configured as a
track-and-hold amplifier. Although normally tracking its input,
this amplifier is placed in a hold mode for approximately 2.5
µs
after the leading edge of
LDAC. This short state keeps the DAC
output at its previous voltage while the AD7846 is internally
changing to its new value. So, any glitches that occur in the
transition are not seen at the output. In systems where the
LDAC is tied permanently low, the deglitching will not be in
operation. Figures 8 and 9 show the outputs of the AD7846
without and with the deglitcher.
C1
LDAC
VOUT
RIN
DAC3
ONE
SHOT
10k
10k
Figure 17. Output Stage
UNIPOLAR BINARY OPERATION
Figure 18 shows the AD7846 in the unipolar binary circuit
configuration. The DAC is driven by the AD586, +5 V refer-
ence. Since RIN is tied to 0 V, the output amplifier has a gain of
2 and the output range is 0 V to +10 V. If a 0 V to +5 V range is
required, RIN should be tied to VOUT, configuring the output
stage for a gain of 1. Table III gives the code table for the circuit
of Figure 18.
RIN
VOUT
DGND
+15V
+5V
VCC
VDD
VREF+
VREF–
R1
10k
C1
1 F
SIGNAL
GROUND
–15V
*ADDITIONAL PINS
OMITTED FOR CLARITY
AD7846*
AD586
VOUT
(0V TO +10V)
VSS
4
Figure 18. Unipolar Binary Operation
Table III. Code Table for Figure 18
Binary Number
Analog Output
in DAC Latch
(VOUT)
MSB
LSB
1111 1111 1111 1111
+10 (65535/65536) V
1000 0000 0000 0000
+10 (32768/65536) V
0000 0000 0000 0001
+10 (1/65536) V
0000 0000 0000 0000
0
NOTE
1 LSB = 10 V/2
16 = 10 V/65536 = 152
µV.
Offset and gain may be adjusted in Figure 18 as follows: To
adjust offset, disconnect the VREF– input from 0 V, load the
DAC with all 0s and adjust the VREF– voltage until VOUT = 0 V.
For gain adjustment, the AD7846 should be loaded with all 1s
and R1 adjusted until VOUT = 10 (65535)/(65536) = 9.999847 V.
If a simple resistor divider is used to vary the VREF– voltage, it is
important that the temperature coefficients of these resistors
match that of the DAC input resistance (–300 ppm/
°C). Other-
wise, extra offset errors will be introduced over temperature.
Many circuits will not require these offset and gain adjustments.
In these circuits, R1 can be omitted. Pin 5 of the AD586 may be
left open circuit and Pin 8 (VREF– ) of the AD7846 tied to 0 V.


Ähnliche Teilenummer - AD7846JP

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
AD7846JP AD-AD7846JP Datasheet
451Kb / 24P
   LC2MOS 16-Bit Voltage Output DAC
Rev. G
AD7846JP-REEL AD-AD7846JP-REEL Datasheet
451Kb / 24P
   LC2MOS 16-Bit Voltage Output DAC
Rev. G
AD7846JPZ AD-AD7846JPZ Datasheet
451Kb / 24P
   LC2MOS 16-Bit Voltage Output DAC
Rev. G
AD7846JPZ-REEL AD-AD7846JPZ-REEL Datasheet
451Kb / 24P
   LC2MOS 16-Bit Voltage Output DAC
Rev. G
More results

Ähnliche Beschreibung - AD7846JP

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
AD7846 AD-AD7846_10 Datasheet
451Kb / 24P
   LC2MOS 16-Bit Voltage Output DAC
Rev. G
LTC2688 AD-LTC2688 Datasheet
2Mb / 42P
   16-Channel, 16-Bit Voltage Output SoftSpan DAC
logo
Linear Technology
LTC1650 LINER-LTC1650 Datasheet
253Kb / 12P
   Low Glitch 16-Bit Voltage Output DAC
logo
Texas Instruments
DAC161S055 TI1-DAC161S055 Datasheet
486Kb / 23P
[Old version datasheet]   Precision 16-Bit, Buffered Voltage-Output DAC
logo
Linear Technology
LTC1650 LINER-LTC1650_15 Datasheet
525Kb / 12P
   Low Glitch 16-Bit Voltage Output DAC
logo
Analog Devices
AD7846 AD-AD7846_15 Datasheet
451Kb / 24P
   LC MOS 16-Bit Voltage Output DAC
Rev. G
logo
Texas Instruments
DAC8551-Q1 TI1-DAC8551-Q1 Datasheet
1Mb / 28P
[Old version datasheet]   Automotive 16-Bit, Ultralow-Glitch, Voltage-Output DAC
logo
Analog Devices
AD5541A AD-AD5541A_18 Datasheet
435Kb / 20P
   Serial-Input, Voltage Output, Unbuffered 16-Bit DAC
AD5512A AD-AD5512A Datasheet
503Kb / 21P
   Serial-Input Voltage-Output, 12-/16-Bit DAC
logo
Texas Instruments
DAC161S055 TI-DAC161S055_13 Datasheet
918Kb / 27P
[Old version datasheet]   DAC161S055 Precision 16-Bit, Buffered Voltage-Output DAC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


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