operational amplifiers are designed for precision, low-
power, miniature applications. The OPA344 is unity
gain stable, while the OPA345 is optimized for gains
greater than or equal to five, and has a gain-bandwidth
product of 3MHz.
The OPA344 and OPA345 are optimized to operate on
a single supply from 2.5V and up to 5.5V with an input
common-mode voltage range that extends 300mV
beyond the supplies. Quiescent current is only
250µA (max).
Rail-to-rail input and output make them ideal for driving
sampling analog-to-digital converters. They are also well
suited for general purpose and audio applicaitons and
providing I/V conversion at the output of D/A converters.
Single, dual and quad versions have identical specs for
design flexibility.
A variety of packages are available. All are specified for
operation from –40ºC to 85ºC. A SPICE macromodel is
available for design analysis.
q
GAIN-BANDWIDTH
OPA344: 1MHz, G
≥
1
OPA345: 3MHz, G
≥
5
q
SLEW RATE
OPA344: 0.8V/
µ
s
OPA345: 2V/
µ
s
q
THD + NOISE: 0.006%
APPLICATIONS
q
q
q
q
q
q
q
PCMCIA CARDS
DATA ACQUISITION
PROCESS CONTROL
AUDIO PROCESSING
COMMUNICATIONS
ACTIVE FILTERS
TEST EQUIPMENT
OPA344, OPA345
Out
V–
+In
1
2
3
SOT23-5
4
–In
5
V+
OPA4344, OPA4345
Out A
–In A
1
2
A
+In A
3
4
5
B
C
9
8
–In C
Out C
6
7
D
12
11
10
+In D
–V
+In C
14
13
Out D
–In D
OPA2344, OPA2345
Out A
–In A
+In A
V–
1
2
3
4
A
B
8
7
6
5
V+
Out B
–In B
+In B
OPA344, OPA345
NC
–In
+In
V–
1
2
3
4
8
7
6
5
NC
V+
Out
NC
+V
+In B
–In B
Out B
SO-8, MSOP-8, 8-Pin DIP (OPA2344 Only)
SO-8, 8-Pin DIP (OPA344 Only)
TSSOP-14, SO-14, 14-PIn DIP (OPA4344 Only)
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Operating Temperature .................................................. –55°C to +125°C
Storage Temperature ..................................................... –65°C to +150°C
Junction Temperature ...................................................................... 150°C
Lead Temperature (soldering, 10s) ................................................. 300°C
ESD Tolerance (Human Body Model) ............................................ 4000V
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only. Functional opera-
tion of the device at these conditions, or beyond the specified operating
conditions, is not implied. (2) Input terminals are diode-clamped to the power
supply rails. Input signals that can swing more than 0.5V beyond the supply
rails should be current-limited to 10mA or less. (3) Short-circuit to ground,
one amplifier per package.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage. ESD damage
can range from subtle performance degradation to complete
device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
331
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
PACKAGE
MARKING
B44
ORDERING
NUMBER
(1)
OPA344NA/250
OPA344NA/3K
OPA344UA
OPA344UA /2K5
OPA344PA
OPA2344EA /250
OPA2344EA /2K5
OPA2344UA
OPA2344UA/2K5
OPA2344PA
OPA4344EA /250
OPA4344EA /2K5
OPA4344UA
OPA4344UA/2K5
OPA4344PA
OPA345NA/250
OPA345NA/3K
OPA345UA
OPA345UA/2K5
OPA2345EA/250
OPA2345EA /2K5
OPA2345UA
OPA2345UA/2K5
OPA4345EA/250
OPA4345EA /2K5
OPA4345UA
OPA4345UA/2K5
TRANSPORT
MEDIA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Tape and Reel
Rails
Tape and Reel
PRODUCT
OPA344NA
PACKAGE
SOT23-5
"
OPA344UA
"
SO-8
"
182
"
–40°C to +85°C
"
OPA344UA
"
OPA344PA
OPA2344EA
"
8-Pin Dip
MSOP-8
"
006
337
"
–40° C to +85°C
–40°C to +85°C
"
OPA344PA
C44
"
OPA2344UA
"
SO-8
"
182
"
–40°C to +85°C
"
OPA2344UA
"
OPA2344PA
OPA4344EA
"
8-Pin DIP
TSSOP-14
"
006
357
"
–40°C to +85°C
–40°C to +85°C
"
OPA2344PA
OPA4344EA
"
OPA4344UA
"
SO-14
"
235
"
–40°C to +85°C
"
OPA4344UA
"
OPA4344PA
OPA345NA
"
OPA345UA
"
OPA2345EA
"
14-Pin DIP
SOT23-5
"
SO-8
"
MSOP-8
"
010
331
"
182
"
337
"
–40°C to +85°C
–40°C to +85°C
"
–40°C to +85°C
"
–40°C to +85°C
"
OPA4344PA
A45
"
OPA345UA
"
B45
"
OPA2345UA
"
SO-8
"
182
"
–40°C to +85°C
"
OPA2345UA
"
OPA4345EA
"
TSSOP-14
"
357
"
–40°C to +85°C
"
OPA4345EA
"
OPA4345UA
"
SO-14
"
235
"
–40°C to +85°C
"
OPA4345UA
"
"
"
"
"
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces
of “OPA344UA/2K5” will get a single 2500-piece Tape and Reel.
便携式数字数据采集系统（PDDAS）使用了LabVIEW实时模块和PXI，以控制风洞测试和采集记录来自128个不同通道的空气压力数据 "通过LabVIEW实时模块，可以在各种操作情况下获得采集空气压力数据及向风洞提供反馈控制信号所需的确定性响应时间。" – Dave Scheibenhoffer, G Systems 挑战: 用一个可采集、分析和存储来自下一代喷气式战斗机引擎设计的动...[详细]
FPGA/CPLD
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