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參數(shù)資料
| 型號(hào)： | AD5452 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 8/10/12/14-Bit High Bandwidth Multiplying DACs with Serial Interface |
| 中文描述： | 8/10/12/14-Bit高帶寬倍增DAC的串行接口 |
| 文件頁(yè)數(shù)： | 15/16頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | AD5452 |
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AD5450/AD5451/AD5452/AD5453
–
15
–
REV. PrD
PRELIMINARY TECHNICAL DATA
at the V
REF
node (voltage output node in this application)
of the DAC. T his is done by using low inputs capacitance
buffer amplifiers and careful board design.
Most single supply circuits include ground as part of the
analog signal range, which in turns requires an
ampliferthat can handle rail to rail signals, there is a large
range of single supply amplifiers available from Analog
D evices.
PC B L AY OUT AND POWE R SUPPL Y D E C OUPL ING
In any circuit where accuracy is important, careful
consideration of the power supply and ground return
layout helps to ensure the rated performance. T he printed
circuit board on which the AD5426/AD5432/AD5443 is
mounted should be designed so that the analog and digital
sections are separated, and cofined to certain areas of the
board. If the DAC is in a system where multiple devices
require an AGND-to-DGND connection, the connection
should be made at one point only. T he star ground point
should be established as close as possible to the device.
T hese DACs should have ample supply bypassing of 10
μF in parallel with 0.1 μF on the supply located as close
to the package as possible, ideally right up against the
device. T he 0.1 μF capacitor should have low Effective
Series Resistance (ESR) and Effective Series Inductance
(ESI), like the common ceramic types that provide a low
impedance path to ground at high frequencies, to handle
transient currents due to internal logic switching. Low
ESR 1 μF to 10 μF tantalum or electrolytic capacitors
should also be applied at the supplies to minimize
transient disturbance and filter out low frequency ripple.
Fast switching signals such as clocks should be shielded
with digital ground to avoid radiating noise to other parts
of the board, and should never be run near the reference
inputs.
Avoid crossover of digital and analog signals. T races on
opposite sides of the board should run at right angles to
each other. T his reduces the effects of feedthrough
through the board. A microstrip technique is by far the
best, but not always possible with a doublesided board. In
this technique, the component side of the board is
dedicated to ground plane while signal traces are placed
on the solder side.
It is good practice to employ compact, minimum lead
length PCB layout design. Leads to the input should be as
short as possible to minimize IR drops and stray
inductance.
T he PCB metal traces between V
REF
and R
FB
should also
be matched to minimize gain error. T o maximize on high
frequency performance, the I-to-V amplifier should be
located as close to the device as possible.
T able IV. Listing of suitable ADI Precision References recommended for use with AD5450/1/2/3 DACs.
R eference
Output Voltage
Initial T olerance
T emperature D rift
0.1Hz to 10Hz noise
P ackage
AD R01
AD R02
AD R03
AD R425
10 V
5 V
2.5 V
5V
0.1%
0.1%
0.2%
0.04%
3ppm/
o
C
3ppm/
o
C
3ppm/
o
C
3ppm/
o
C
20
μ
Vp-p
10
μ
Vp-p
10
μ
Vp-p
3.4
μ
Vp-p
SC 70, T SOT , SOIC
SC 70, T SOT , SOIC
SC 70, T SOT , SOIC
MSOP, SOIC
T able V. Listing of some precision ADI Op Amps suitable for use with AD5450/1/2/3 DACs.
Part #
Max Supply Voltage V
V
O S
( max)
μ
V I
B
(max) nA
GBP MHz
Slew Rate V/
μ
s
t
SE T T L E
with A D 5453
OP97
OP1177
±
18
AD 8551 ± 6
±
20
25
60
5
0.1
2
0.05
0.9
1.3
1.5
0.2
0.7
0.4
T able VI. Listing of some High Speed ADI Op Amps suitable for use with AD5450/1/2/3 DACs.
Part #
Max Supply Voltage V
BW @ A
CL
MHz
145
200
350
320
Slew Rate V/
μ
s
t
SE T T L E
with A D 5453
V
O S
( max)
μ
V I
B
(max) nA
1500
1000
3000
10000
AD 8065
AD 8021
AD 8038
AD 9631
±12
±12
± 5
± 5
180
100
425
1300
0.01
1000
0.75
7000
相關(guān)PDF資料 |
PDF描述 |
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| AD5452YRM | 8/10/12/14-Bit High Bandwidth Multiplying DACs with Serial Interface |
| AD5453 | 8/10/12/14-Bit High Bandwidth Multiplying DACs with Serial Interface |
| AD5450YUJ | JACK, RJ45, R.ANG, PCB |
| AD5451YUJ | Multiconductor Cable; Number of Conductors:4; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper; Features:Unshielded RoHS Compliant: Yes |
| AD5452YUJ | Multiconductor Cable; Number of Conductors:5; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper; Features:Unshielded RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
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| AD5452W | 制造商:AD 制造商全稱:Analog Devices 功能描述:12-Bit High Bandwidth Multiplying DAC with Serial Interface |
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