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LMV344I

更新时间： 2024-11-08 04:44:07
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德州仪器 - TI 运算放大器输出元件
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27页 862K
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RAIL-TO-RAIL OUTPUT CMOS OPERATIONAL AMPLIFIERS WITH SHUTDOWN

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LMV341, LMV342, LMV344  
RAIL-TO-RAIL OUTPUT CMOS OPERATIONAL AMPLIFIERS  
WITH SHUTDOWN  
www.ti.com  
SLOS447G–SEPTEMBER 2004–REVISED FEBRUARY 2006  
FEATURES  
LMV341 . . . DBV (SOT-23) OR DCK (SC-70) PACKAGE  
(TOP VIEW)  
•
•
•
•
•
•
•
•
•
•
2.7-V and 5-V Performance  
Rail-to-Rail Output Swing  
6
5
4
1
2
3
IN+  
GND  
IN−  
V
+
Input Bias Current…1 pA Typ  
Input Offset Voltage…0.25 mV Typ  
Low Supply Current…100 µA Typ  
Low Shutdown Current…45 pA Typ  
Gain Bandwidth of 1 MHz Typ  
Slew Rate…1 V/µs Typ  
SHDN  
OUT  
LMV342 . . . D (SOIC) OR DGK (MSOP) PACKAGE  
(TOP VIEW)  
8
7
6
5
1OUT  
1IN−  
1IN+  
GND  
1
2
3
4
V
+
Turn-On Time From Shutdown…5 µs Typ  
2OUT  
2IN−  
2IN+  
Input Referred Voltage Noise (at 10 kHz)…  
20 nV/√Hz  
•
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
LMV344 . . . D (SOIC) OR PW (TSSOP) PACKAGE  
(TOP VIEW)  
APPLICATIONS  
1
2
3
4
5
6
7
14 4OUT  
1OUT  
1IN−  
1IN+  
•
•
•
•
Cordless/Cellular Phones  
Consumer Electronics (Laptops, PDAs)  
Audio Pre-Amps for Voice  
Portable/Battery-Powered Electronic  
Equipment  
13  
12  
11  
10  
9
4IN−  
4IN+  
GND  
3IN+  
3IN−  
3OUT  
V
+
2IN+  
2IN−  
•
•
•
•
•
Supply-Current Monitoring  
Battery Monitoring  
Buffers  
Filters  
Drivers  
8
2OUT  
DESCRIPTION/ORDERING INFORMATION  
The LMV341, LMV342, LMV344 devices are single, dual, and quad CMOS operational amplifiers, respectively,  
with low voltage, low power, and rail-to-rail output swing capabilities. The PMOS input stage offers an ultra-low  
input bias current of 1 pA (typ) and an offset voltage of 0.25 mV (typ). The single supply amplifier is designed  
specifically for low-voltage (2.7 V to 5 V) operation, with a wide common-mode input voltage range that typically  
extends from –0.2 V to 0.8 V from the positive supply rail. The LMV341 (single) also offers a shutdown (SHDN)  
pin that can be used to disable the device. In shutdown mode, the supply current is reduced to 33 nA (typ).  
Additional features of the family are a 20-nV/√Hz voltage noise at 10 kHz, 1-MHz unity-gain bandwidth, 1-V/µs  
slew rate, and 100-µA current consumption per channel.  
Offered in both the SOT-23 and smaller SC-70 packages, the LMV341 is suitable for the most space-constraint  
applications. The LMV342 dual device is offered in the standard SOIC and MSOP packages. An extended  
industrial temperature range from –40°C to 125°C makes these devices suitable in a wide variety of commercial  
and industrial environments.  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2004–2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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