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OPA322

更新时间： 2024-11-04 10:22:19
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
36页 1684K
描述
20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier with Shutdown

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OPA322 数据手册

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OPA322, OPA322S  
OPA2322, OPA2322S  
OPA4322, OPA4322S  
www.ti.com  
SBOS538E –JANUARY 2011–REVISED JUNE 2012  
20-MHz, Low-Noise, 1.8-V, RRI/O,  
CMOS Operational Amplifier with Shutdown  
Check for Samples: OPA322, OPA322S, OPA2322, OPA2322S, OPA4322, OPA4322S  
1
FEATURES  
DESCRIPTION  
The OPA322 series consists of single, dual, and  
23  
•
Gain Bandwidth: 20 MHz  
Low Noise: 8.5 nV/√Hz at 1 kHz  
Slew Rate: 10 V/μs  
quad-channel CMOS operational amplifiers featuring  
low noise and rail-to-rail inputs/outputs optimized for  
low-power, single-supply applications. Specified over  
a wide supply range of 1.8 V to 5.5 V, the low  
quiescent current of only 1.5 mA per channel makes  
these devices well-suited for power-sensitive  
applications.  
•
•
•
•
•
•
•
Low THD+N: 0.0005%  
Rail-to-Rail I/O  
Offset Voltage: 2 mV (max)  
Supply Voltage: 1.8 V to 5.5 V  
Supply Current: 1.5 mA/ch  
The combination of very low noise (8.5 nV/√Hz at  
1 kHz), high gain-bandwidth (20 MHz), and fast slew  
rate (10 V/μs) make the OPA322 family ideal for a  
wide range of applications, including signal  
conditioning and sensor amplification requiring high  
gains. Featuring low THD+N, the OPA322 series is  
also excellent for consumer audio applications,  
particularly for single-supply systems.  
–
Shutdown: 0.1 μA/ch  
•
•
Unity-Gain Stable  
Small Packages:  
–
SOT23, DFN, MSOP, TSSOP  
APPLICATIONS  
The OPAx322S models include a shutdown mode  
allowing the amplifiers to be switched from normal  
operation to a standby current that is typically less  
than 0.1 μA.  
•
•
•
•
•
•
•
Sensor Signal Conditioning  
Consumer Audio  
Multi-Pole Active Filters  
Control-Loop Amplifiers  
Communications  
Security  
The OPA322 (single version) is available in SOT23-5  
and SOT23-6, while the OPA2322 (dual version) is  
offered in MSOP-8, MSOP-10, SO-8, and DFN-8  
packages. The quad versions OPA4322 come in  
TSSOP-14 and TSSOP-16 packages. All versions are  
specified for operation from –40°C to +125°C.  
Scanners  
1
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.  
2
3
FilterPro is a trademark of Texas Instruments Incorporated.  
All other trademarks are the property of their respective owners.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information 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 © 2011–2012, Texas Instruments Incorporated  
 
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