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參數資料
| 型號： | AD7837BR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | LC2MOS Complete, Dual 12-Bit MDACs |
| 中文描述： | DUAL, PARALLEL, WORD INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數： | 3/12頁 |
| 文件大小： | 187K |
| 代理商： | AD7837BR |
AD7837/AD7847
REV. C
–3–
TIMING CHARACTERISTICS
1, 2, 3
Limit at T
MIN
, T
MAX
(All Versions)
Parameter
Unit
Conditions/Comments
t
1
t
2
t
3
t
4
t
5
t
64
t
74
t
84
0
0
30
80
0
0
0
50
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
CS
to
WR
Setup Time
CS
to
WR
Hold Time
WR
Pulsewidth
Data Valid to
WR
Setup Time
Data Valid to
WR
Hold Time
Address to
WR
Setup Time
Address to
WR
Hold Time
LDAC
Pulsewidth
NOTES
1
All input signals are specified with tr = tf = 5 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
2
See Figures 3 and 5.
3
Guaranteed by design and characterization, not production tested.
4
AD7837 only.
ABSOLUTE MAXIMUM RATINGS
*
(T
A
= +25
°
C unless otherwise noted)
V
to DGND, AGNDA, AGNDB . . . . . . . –0.3 V to +17 V
V
DD
to DGND, AGNDA, AGNDB . . . . . . . +0.3 V to –17 V
V
REFA
, V
REFB
to AGNDA, AGNDB
. . . . . . . . . . . . . . . . . . . . . . . . . .V
SS
– 0.3 V to V
DD
+ 0.3 V
AGNDA, AGNDB to DGND . . . . . . . –0.3 V to V
DD
+ 0.3 V
V
OUTA2
, V
OUTB2
to AGNDA, AGNDB
. . . . . . . . . . . . . . . . . . . . . . . . . .V
SS
– 0.3 V to V
DD
+ 0.3 V
R
FBA3
, R
FBB3
to AGNDA, AGNDB
. . . . . . . . . . . . . . . . . . . . . . . . . .V
SS
– 0.3 V to V
DD
+ 0.3 V
Digital Inputs to DGND . . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Operating Temperature Range
Commercial/Industrial (A, B Versions) . . . –40
°
C to +85
°
C
Extended (S Version) . . . . . . . . . . . . . . . . –55
°
C to +125
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . . 300
°
C
Power Dissipation (Any Package) to +75
°
C . . . . . . 1000 mW
Derates above +75
°
C by . . . . . . . . . . . . . . . . . . . . 10 mW/
°
C
NOTES
1
If V
is open circuited with V
and either AGND applied, the V
pin will float
positive, exceeding the Absolute Maximum Ratings. If this possibility exists, a
Schottky diode connected between V
and AGND (cathode to AGND) ensures
the Maximum Ratings will be observed.
2
The outputs may be shorted to voltages in this range provided the power dissipation
of the package is not exceeded.
3
AD7837 only.
*
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability. Only one Absolute
Maximum Rating may be applied at any one time.
ORDERING GUIDE
Temperature
Range
Relative
Accuracy
Package
Option
2
Model
1
AD7837AN
AD7837BN
AD7837AR
AD7837BR
AD7837AQ
AD7837BQ
AD7837SQ
AD7847AN
AD7847BN
AD7847AR
AD7847BR
AD7847AQ
AD7847BQ
AD7847SQ
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
N-24
N-24
R-24
R-24
Q-24
Q-24
Q-24
N-24
N-24
R-24
R-24
Q-24
Q-24
Q-24
NOTES
1
To order MIL-STD-883, Class B processed parts, add /883B to part number.
2
N = Plastic DIP; Q = Cerdip; R = SOIC.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although these devices feature proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
(V
DD
= +15 V 5%, V
SS
= –15 V 5%, AGNDA = AGNDB = DGND = O V)
WARNING!
ESD SENSITIVE DEVICE
相關PDF資料 |
PDF描述 |
|---|---|
| AD7837SQ | 2.7V-5.25V Digital, 5V Analog, 14 Bit, 1.25 MSPS, Serial ADC w/Ref 48-TQFP -40 to 85 |
| AD7847 | LC2MOS Complete, Dual 12-Bit MDACs |
| AD7847AN | LC2MOS Complete, Dual 12-Bit MDACs |
| AD7847AQ | LC2MOS Complete, Dual 12-Bit MDACs |
| AD7847AR | LC2MOS Complete, Dual 12-Bit MDACs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7837BR/883B | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Complete, Dual 12-Bit MDACs |
| AD7837BR883B | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Complete, Dual 12-Bit MDACs |
| AD7837BR-883B | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Complete, Dual 12-Bit MDACs |
| AD7837BRN | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Complete, Dual 12-Bit MDACs |
| AD7837BRQ | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Complete, Dual 12-Bit MDACs |
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