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PDF OP471 Data sheet ( Hoja de datos )
| Número de pieza | OP471 | |
| Descripción | High Speed / Low Noise Quad Operational Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de OP471 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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FEATURES
Excellent Speed: 8 V/s Typ
Low Noise: 11 nV/÷Hz @ 1 kHz Max
Unity-Gain Stable
High Gain Bandwidth: 6.5 MHz Typ
Low Input Offset Voltage: 0.8 mV Max
Low Offset Voltage Drift: 4 V/؇C Max
High Gain: 500 V/mV Min
Outstanding CMR: 105 dB Min
Industry Standard Quad Pinouts
GENERAL DESCRIPTION
The OP471 is a monolithic quad op amp featuring low noise,
11 nV/÷Hz Max @ 1 kHz, excellent speed, 8 V/ms typical, a
gain bandwidth of 6.5 MHz, and unity-gain stability.
The OP471 has an input offset voltage under 0.8 mV and an
input offset voltage drift below 4 mV/∞C, guaranteed over the full
military temperature range. Open-loop gain of the OP471 is over
500,000 into a 10 kW load ensuring outstanding gain accuracy
and linearity. The input bias current is under 25 nA limiting
errors due to signal source resistance. The OP471’s CMR of
over 105 dB and PSRR of under 5.6 mV/V significantly reduce
errors caused by ground noise and power supply fluctuations.
The OP471 offers excellent amplifier matching which is important
for applications such as multiple gain blocks, low-noise instru-
mentation amplifiers, quad buffers and low-noise active filters.
The OP471 conforms to the industry standard 14-lead DIP
pinout. It is pin-compatible with the LM148/LM149, HA4741,
RM4156, MC33074, TL084 and TL074 quad op amps and can
be used to upgrade systems using these devices.
For applications requiring even lower voltage noise the OP470
with a voltage density of 5 nV/÷Hz Max @ 1 kHz is recommended.
High Speed, Low Noise Quad
Operational Amplifier
OP471
PIN CONFIGURATIONS
14-Lead
Hermetic Dip
(Y-Suffix)
14-Lead
Plastic Dip
(P-Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
OP471
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
OP471
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
16-Lead SOIC
(S-Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
NC 8
OP471
16 OUT D
15 –IN D
14 +IN D
13 V–
12 +IN C
11 –IN C
10 OUT C
9 NC
NC = NO CONNECT
V+
BIAS
–IN +IN
OUT
Figure 1. Simplified Schematic
V–
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.
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
1 page  
130
120
110
100
90
80
70
60
50
40
30
20
10
1
TA = 25؇C
VS = ؎15V
10 100 1k 10k 100k 1M
FREQUENCY – Hz
TPC 10. CMR vs. Frequency
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
1
TA = 25؇C
VS = ؎15V
–PSR
+PSR
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY – Hz
TPC 13. PSR vs. Frequency
10
TA = +25؇C
8 TA = +125؇C
TA = –55؇C
6
4
2
0 ؎5 ؎10 ؎15 ؎20
SUPPLY VOLTAGE – V
TPC 11. Total Supply Current
vs. Supply Voltage
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
1
TA = 25؇C
VS = 15V
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY – Hz
TPC 14. Open-Loop Gain vs. Frequency
25
20
15 PHASE
TA = 25؇C
VS = ؎15V
80
100
120
10
GAIN
5
PHASE MARGIN
= 57؇
140
160
0 180
–5 200
–10
1
220
2 3 4 5 6 7 8 9 10
FREQUENCY – MHz
TPC 16. Open-Loop Gain,
Phase Shift vs. Frequency
2000
1500
TA = 25؇C
RL = 10k⍀
1000
500
0
0 ؎5 ؎10 ؎15 ؎20
SUPPLY VOLTAGE – V
TPC 17. Open-Loop Gain vs.
Supply Voltage
OP471
10
VS = ؎15V
9
8
7
6
5
4
3
2
–75 –50
–25 0 25 50 75
TEMPERATURE – ؇C
100 125
TPC 12. Total Supply Current
vs. Temperature
80
TA = 25؇C
VS = ؎15V
60
40
20
0
–20
1k
10k 100k
1M
FREQUENCY – Hz
10M
TPC 15. Closed-Loop Gain
vs. Frequency
80 8
VS = ؎15V
GBW
70 6
60 4
50 2
40 0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE – ؇C
TPC 18. Gain-Bandwidth Product,
Phase Margin vs. Temperature
REV. A
–5–
5 Page 
High-Speed Differential Line Driver
The circuit of Figure 15 is a unique line driver widely used in
professional audio applications. With ± 18 V supplies, the line
driver can deliver a differential signal of 30 V p-p into a 1.5 kW
load. The output of the differential line driver looks exactly like
a transformer. Either output can be shorted to ground without
changing the circuit gain of 5, so the amplifier can easily be set
for inverting, noninverting, or differential operation. The line
driver can drive unbalanced loads, like a true transformer.
+15V
VIN R3
1/4 200⍀
R1 OP471E
50⍀
R2
–15V 5k⍀
R4
50⍀
1/4
OP471E
R5
5k⍀
R6
200⍀
VOUT = 100VIN
1/4
R7 OP471E
50⍀
R9
200⍀
R8
5k⍀
1/4
R10 OP471E
50⍀
R12
200⍀
R11
5k⍀
Figure 13. Low-Noise Amplifier
High-Output Amplifier
The amplifier shown in Figure 16 is capable of driving 20 V p-p
into a floating 400 W load. Design of the amplifier is based on a
bridge configuration. A1 amplifies the input signal and drives
the load with the help of A2. Amplifier A3 is a unity-gain inverter
which drives the load with help from A4. Gain of the high output
amplifier with the component values shown is 10, but can
easily be changed by varying R1 or R2.
OP471
100
90
10
0%
Figure 14. Noise Density of Low-Noise Amplifier, G = 100
R4
10k⍀
1/4
OP471
R11
50⍀
R2
2k⍀
R8
10k⍀
IN
R1 1/4
10k⍀ OP471
R7
2k⍀
R6 R9
2k⍀ 10k⍀
R10
R3
2k⍀
1/4
OP471
50⍀
R5
10k⍀
–OUT
R14
1k⍀
R13
10k⍀
R12
1k⍀
+OUT
Figure 15. High-Speed Differential Line Driver
C1
10F
+
+15V
C2
0.1F
R1
1k⍀
1/4
OP471E
A1
VIN
C3
0.1F
C4
10F
+
–15V
REV. A
R2
9k⍀
R3
50⍀
R5
5k⍀
R6
5k⍀
R7
50⍀
1/4
OP471E
A2
R4
50⍀
R8
RL 50⍀
1/4
OP471E
A4
Figure 16. High-Output Amplifier
–11–
1/4
OP471E
A3
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet OP471.PDF ] | |
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