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OP270GP 参数 Datasheet PDF下载

OP270GP图片预览
型号: OP270GP
PDF下载: 下载PDF文件 查看货源
内容描述: DUAL非常低的噪声精密运算放大器 [Dual Very Low Noise Precision Operational Amplifier]
分类和应用: 运算放大器光电二极管
文件页数/大小: 16 页 / 516 K
品牌: AD [ ANALOG DEVICES ]
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a
FEATURES
÷
Very Low Noise 5 nV/÷
Hz
@ 1 kHz Max
Excellent Input Offset Voltage 75 V Max
Low Offset Voltage Drift 1 V/ C Max
Very High Gain 1500 V/mV Min
Outstanding CMR 106 dB Min
Slew Rate 2.4 V/ s Typ
Gain Bandwidth Product 5 MHz Typ
Industry-Standard 8-Lead Dual Pinout
GENERAL DESCRIPTION
Dual Very Low Noise Precision
Operational Amplifier
OP270
CONNECTION DIAGRAMS
16-Lead SOIC
(S-Suffix)
–IN A
1
+IN A
2
NC
3
V–
4
NC
5
+IN B
6
–IN B
7
NC
8
16
OUT A
15
NC
14
NC
8-Lead PDIP (P-Suffix)
8-Lead CERDIP
(Z-Suffix)
OUT A
1
–IN A
2
+IN A
3
V–
4
OP270
A
B
8
7
6
5
V+
OUT B
–IN B
+IN B
OP270
13
V+
12
NC
11
NC
10
OUT B
9
NC
The OP270 is a high performance, monolithic, dual operational
amplifier with exceptionally low voltage noise, 5 nV/÷Hz max at
1 kHz. It offers comparable performance to ADI’s industry
standard OP27.
The OP270 features an input offset voltage below 75
mV
and an
offset drift under 1
mV/∞C,
guaranteed over the full military tem-
perature range. Open-loop gain of the OP270 is over 1,500,000
into a 10 kW load, ensuring excellent gain accuracy and linearity,
even in high gain applications. Input bias current is under 20 nA,
which reduces errors due to signal source resistance. The OP270’s
CMR of over 106 dB and PSRR of less than 3.2
mV/V
signifi-
cantly reduce errors due to ground noise and power supply
fluctuations. Power consumption of the dual OP270 is one-third
less than two OP27s, a significant advantage for power conscious
applications. The OP270 is unity-gain stable with a gain bandwidth
product of 5 MHz and a slew rate of 2.4 V/ms.
NC = NO CONNECT
The OP270 offers excellent amplifier matching, which is important
for applications such as multiple gain blocks, low noise instru-
mentation amplifiers, dual buffers, and low noise active filters.
The OP270 conforms to the industry-standard 8-lead DIP pinout.
It is pin compatible with the MC1458, SE5532/A, RM4558, and
HA5102 dual op amps, and can be used to upgrade systems
using those devices.
For higher speed applications, the OP271, with a slew rate of
8 V/ms, is recommended. For a quad op amp, see the OP470.
SIMPLIFIED SCHEMATIC
(One of Two Amplifiers Is Shown)
V+
BIAS
OUT
–IN
+IN
V–
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.