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參數(shù)資料
| 型號： | AD7541ABQ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | CMOS 12-Bit Monolithic Multiplying DAC |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 0.6 us SETTLING TIME, 12-BIT DAC, CDIP18 |
| 封裝： | GLASS SEALED, CERDIP-18 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 227K |
| 代理商： | AD7541ABQ |
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD7541A
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
CMOS
12-Bit Monolithic Multiplying DAC
FUNCTIONAL BLOCK DIAGRAM
10k
10k
10k
20k
20k
20k
20k
20k
S1
S2
S3
S12
V
REF
OUT2
OUT1
R
FEEDBACK
BIT 12 (LSB)
BIT 3
BIT 2
BIT 1 (MSB)
DIGITAL INPUTS (DTL/TTL/CMOS COMPATIBLE)
LOGIC: A SWITCH IS CLOSED TO I
FOR
ITS DIGITAL INPUT IN A "HIGH" STATE.
10k
FEATURES
Improved Version of AD7541
Full Four-Quadrant Multiplication
12-Bit Linearity (Endpoint)
All Parts Guaranteed Monotonic
TTL/CMOS Compatible
Low Cost
Protection Schottky Diodes Not Required
Low Logic Input Leakage
GENERAL DESCRIPTION
The Analog Devices AD7541A is a low cost, high performance
12-bit monolithic multiplying digital-to-analog converter. It is
fabricated using advanced, low noise, thin film on CMOS
technology and is available in a standard 18-lead DIP and in
20-terminal surface mount packages.
The AD7541A is functionally and pin compatible with the in-
dustry standard AD7541 device and offers improved specifica-
tions and performance. The improved design ensures that the
device is latch-up free so no output protection Schottky diodes
are required.
This new device uses laser wafer trimming to provide full 12-bit
endpoint linearity with several new high performance grades.
PRODUCT HIGHLIGHTS
Compatibility:
The AD7541A can be used as a direct replace-
ment for any AD7541-type device. As with the Analog Devices
AD7541, the digital inputs are TTL/CMOS compatible and
have been designed to have a
±
1
μ
A maximum input current
requirement so as not to load the driving circuitry.
Improvements:
The AD7541A offers the following improved
specifications over the AD7541:
1. Gain Error for all grades has been reduced with premium
grade versions having a maximum gain error of
±
3 LSB.
2. Gain Error temperature coefficient has been reduced to
2 ppm/
°
C typical and 5 ppm/
°
C maximum.
3. Digital-to-analog charge injection energy for this new device
is typically 20% less than the standard AD7541 part.
4. Latch-up proof.
5. Improvements in laser wafer trimming provides 1/2 LSB max
differential nonlinearity for top grade devices over the operat-
ing temperature range (vs. 1 LSB on older 7541 types).
6. All grades are guaranteed monotonic to 12 bits over the
operating temperature range.
ORDERING GUIDE
1
Relative
Accuracy
T
MIN
to T
MAX
T
A
= +25
8
C
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
±
1 LSB
±
1/2 LSB
Gain
Error
Temperature
Range
0
°
C to +70
°
C
Package
Options
3
N-18
N-18
P-20A
P-20A
R-18
Q-18
Q-18
Q-18
Q-18
E-20A
E-20A
Model
2
AD7541AJN
AD7541AKN 0
°
C to +70
°
C
AD7541AJP
AD7541AKP
AD7541AKR
AD7541AAQ
AD7541ABQ
AD7541ASQ
AD7541ATQ
AD7541ASE
AD7541ATE
±
6 LSB
±
1 LSB
±
6
±
1
±
1
±
6 LSB
±
1 LSB
±
6 LSB
±
1 LSB
±
6 LSB
±
1 LSB
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
–25
°
C to +85
°
C
–25
°
C to +85
°
C
–55
°
C to +125
°
C
–55
°
C to +125
°
C
–55
°
C to +125
°
C
–55
°
C to +125
°
C
NOTES
1
Analog Devices reserves the right to ship either ceramic (D-18) or cerdip (Q-18)
hermetic packages.
2
To order MIL-STD-883, Class B process parts, add /883B to part number. Contact
local sales office for military data sheet.
3
E = Leadless Ceramic Chip Carrier; N = Plastic DIP; P = Plastic Leaded Chip
Carrier; Q = Cerdip; R = Small Outline IC.
相關(guān)PDF資料 |
PDF描述 |
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| AD7541AJN | CMOS 12-Bit Monolithic Multiplying DAC |
| AD7541AJP | CMOS 12-Bit Monolithic Multiplying DAC |
| AD7541AKN | CMOS 12-Bit Monolithic Multiplying DAC |
| AD7541AKP | CMOS 12-Bit Monolithic Multiplying DAC |
| AD7541AKR | CMOS 12-Bit Monolithic Multiplying DAC |
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