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OP470 数据手册 - ADI（亚德诺）
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ADI（亚德诺）
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非常低噪声四路运算放大器 Very Low Noise Quad Operational Amplifier
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OP470数据手册
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REV. A
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.
a
OP470
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2002
Very Low Noise Quad
Operational Amplifier
FEATURES
Very Low-Noise, 5 nV/÷Hz @ 1 kHz Max
Excellent Input Offset Voltage, 0.4 mV Max
Low Offset Voltage Drift, 2 V/C Max
Very High Gain, 1000 V/mV Min
Outstanding CMR, 110 dB Min
Slew Rate, 2 V/s Typ
Gain-Bandwidth Product, 6 MHz Typ
Industry Standard Quad Pinouts
Available in Die Form
GENERAL DESCRIPTION
The OP470 is a high-performance monolithic quad operational
amplifier with exceptionally low voltage noise, 5 nV/X/ Hz at
1 kHz Max, offering comparable performance to ADI’s industry
standard OP27.
The OP470 features an input offset voltage below 0.4 mV,
excellent for a quad op amp, and an offset drift under 2 mV/∞C,
guaranteed over the full military temperature range. Open loop
gain of the OP470 is over 1,000,000 into a 10 kW load ensuring
excellent gain accuracy and linearity, even in high gain applica-
tions. Input bias current is under 25 nA, which reduces errors
due to signal source resistance. The OP470’s CMR of over
110 dB and PSRR of less than 1.8 mV/V significantly reduce
errors due to ground noise and power supply fluctuations.
Power consumption of the quad OP470 is half that of four
OP27s, a significant advantage for power conscious applica-
tions. The OP470 is unity-gain stable with a gain bandwidth
product of 6 MHz and a slew rate of 2 V/ms.
PIN CONNECTIONS
14–Lead Hermetic Dip
(Y–Suffix)
14–Lead Plastic Dip
(P–Suffix)
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
OP470
16–Lead SOIC Package
(R–Suffix)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
NC = NO CONNECT
OUT A OUT D
OP470
–IN A –IN D
+IN A +IN D
V+ V–
+IN B +IN C
–IN B –IN C
OUT B OUT C
NC NC
SIMPLIFIED SCHEMATIC
–
IN
+IN
BIAS
V–
V+
The OP470 offers excellent amplifier matching which is important
for applications such as multiple gain blocks, low noise instrumen-
tation amplifiers, quad buffers, and low noise active filters.
The OP470 conforms to the industry standard 14-pin DIP pinout.
It is pin compatible with the LM148/149, HA4741, HA5104,
and RM4156 quad op amps and can be used to upgrade systems
using these devices.
For higher speed applications, the OP471, with a slew rate of
8 V/ms, is recommended.
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