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OPA4344

更新时间： 2024-11-04 12:11:19
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德州仪器 - TI 运算放大器
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28页 1329K
描述
LOW POWER, SINGLE-SUPPLY,RAIL-TO-RAIL OPERATIONAL AMPLIFIERS

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OPA4344 数据手册

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OPA344  
OPA2344  
OPA4344  
O
P
A
4
3
4
4
O
P
A
3
4
4
O
PA  
345  
OPA345  
OPA2345  
®
O
PA3  
42  
OPA4345  
SBOS107A – APRIL 2000 – REVISED AUGUST 2008  
www.ti.com  
LOW POWER, SINGLE-SUPPLY, RAIL-TO-RAIL  
OPERATIONAL AMPLIFIERS  
™
MicroAmplifier Series  
FEATURES  
DESCRIPTION  
The OPA344 and OPA345 series rail-to-rail CMOS  
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.  
● RAIL-TO-RAIL INPUT  
● RAIL-TO-RAIL OUTPUT (within 1mV)  
● LOW QUIESCENT CURRENT: 150µA typ  
● MicroSIZE PACKAGES  
SOT23-5  
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).  
MSOP-8  
TSSOP-14  
● GAIN-BANDWIDTH  
OPA344: 1MHz, G ≥ 1  
OPA345: 3MHz, G ≥ 5  
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 applications and providing I/V  
conversion at the output of D/A converters. Single, dual and  
quad versions have identical specs for design flexibility.  
● SLEW RATE  
OPA344: 0.8V/µs  
OPA345: 2V/µs  
A variety of packages are available. All are specified for  
operation from –40ºC to 85ºC. A SPICE macromodel for  
design analysis is available for download from www.ti.com.  
● THD + NOISE: 0.006%  
APPLICATIONS  
● PCMCIA CARDS  
OPA344, OPA345  
● DATA ACQUISITION  
Out  
V–  
1
2
3
5
4
V+  
● PROCESS CONTROL  
● AUDIO PROCESSING  
● COMMUNICATIONS  
● ACTIVE FILTERS  
OPA4344, OPA4345  
+In  
–In  
Out A  
–In A  
+In A  
+V  
1
2
3
4
5
6
7
14 Out D  
13 –In D  
12 +In D  
11 –V  
● TEST EQUIPMENT  
SOT23-5  
A
B
D
C
OPA2344, OPA2345  
OPA344, OPA345  
Out A  
–In A  
+In A  
V–  
1
2
3
4
8
7
6
5
V+  
NC  
V+  
NC  
–In  
+In  
V–  
1
8
A
Out B  
–In B  
+In B  
2
3
4
7
6
5
+In B  
–In B  
Out B  
10 +In C  
B
Out  
NC  
9
8
–In C  
Out C  
SO-8, MSOP-8, 8-Pin DIP (OPA2344 Only)  
TSSOP-14, SO-14, 14-PIn DIP (OPA4344 Only)  
SO-8, 8-Pin DIP (OPA344 Only)  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 2000-2008, Texas Instruments Incorporated  
www.ti.com  
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