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OPA4228 PDF预览

OPA4228

更新时间: 2024-11-23 04:35:43
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德州仪器 - TI 运算放大器
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27页 838K
描述
High Precision, Low Noise OPERATIONAL AMPLIFIERS

OPA4228 数据手册

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OPA227  
OPA2227  
OPA4227  
O
PA  
4227  
OP  
A227  
O
PA  
2227  
O
P
A
4
2
2
7
O
P
OPA228  
OPA2228  
OPA4228  
A
2
O
P
A
2
2
7
2
2
7
SBOS110A – MAY 1998 – REVISED JANUARY 2005  
High Precision, Low Noise  
OPERATIONAL AMPLIFIERS  
FEATURES  
LOW NOISE: 3nV/Hz  
DESCRIPTION  
The OPA227 and OPA228 series op amps combine low  
WIDE BANDWIDTH:  
noise and wide bandwidth with high precision to make them  
the ideal choice for applications requiring both ac and preci-  
sion dc performance.  
OPA227: 8MHz, 2.3V/µs  
OPA228: 33MHz, 10V/µs  
SETTLING TIME: 5µs  
The OPA227 is unity-gain stable and features high slew rate  
(2.3V/µs) and wide bandwidth (8MHz). The OPA228 is opti-  
mized for closed-loop gains of 5 or greater, and offers higher  
speed with a slew rate of 10V/µs and a bandwidth of 33MHz.  
(significant improvement over OP-27)  
HIGH CMRR: 138dB  
HIGH OPEN-LOOP GAIN: 160dB  
LOW INPUT BIAS CURRENT: 10nA max  
LOW OFFSET VOLTAGE: 75µV max  
WIDE SUPPLY RANGE: ±2.5V to ±18V  
OPA227 REPLACES OP-27, LT1007, MAX427  
OPA228 REPLACES OP-37, LT1037, MAX437  
SINGLE, DUAL, AND QUAD VERSIONS  
The OPA227 and OPA228 series op amps are ideal for  
professional audio equipment. In addition, low quiescent  
current and low cost make them ideal for portable applica-  
tions requiring high precision.  
The OPA227 and OPA228 series op amps are pin-for-pin  
replacements for the industry standard OP-27 and OP-37  
with substantial improvements across the board. The dual  
and quad versions are available for space savings and per-  
channel cost reduction.  
APPLICATIONS  
DATA ACQUISITION  
The OPA227, OPA228, OPA2227, and OPA2228 are  
available in DIP-8 and SO-8 packages. The OPA4227 and  
OPA4228 are available in DIP-14 and SO-14 packages  
with standard pin configurations. Operation is specified  
from –40°C to +85°C.  
TELECOM EQUIPMENT  
GEOPHYSICAL ANALYSIS  
VIBRATION ANALYSIS  
SPECTRAL ANALYSIS  
PROFESSIONAL AUDIO EQUIPMENT  
ACTIVE FILTERS  
OPA4227, OPA4228  
POWER SUPPLY CONTROL  
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–  
SPICE model available for OPA227 at www.ti.com  
A
D
C
OPA2227, OPA2228  
OPA227, OPA228  
Out A  
1
2
3
4
8
7
6
5
V+  
+In B  
In B  
Out B  
10 +In C  
A
Trim  
In  
+In  
V–  
1
2
3
4
8
7
6
5
Trim  
V+  
In A  
+In A  
V–  
Out B  
In B  
+In B  
B
9
8
In C  
B
Out C  
Output  
NC  
DIP-14, SO-14  
DIP-8, SO-8  
DIP-8, SO-8  
NC = Not Connected  
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 © 1998-2005, Texas Instruments Incorporated  
www.ti.com  

OPA4228 替代型号

型号 品牌 替代类型 描述 数据表
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