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參數資料
| 型號： | OP176GBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Bipolar/JFET, Audio Operational Amplifier |
| 中文描述： | OP-AMP, 1000 uV OFFSET-MAX, 10 MHz BAND WIDTH, UUC |
| 封裝： | DIE |
| 文件頁數： | 1/21頁 |
| 文件大小： | 681K |
| 代理商： | OP176GBC |
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Bipolar/JFET,
Audio Operational Amplifier
OP176*
FEATURES
Low Noise: 6 nV/
√
Hz
High Slew Rate: 25 V/
μ
s
Wide Bandwidth: 10 MHz
Low Supply Current: 2.5 mA
Low Offset Voltage: 1 mV
Unity Gain Stable
SO-8 Package
APPLICATIONS
Line Driver
Active Filters
Fast Amplifiers
Integrators
PIN CONNECTIONS
8-Lead Narrow-Body SO
(S Suffix)
8-Lead Epoxy DIP
(P Suffix)
NULL
–IN
+IN
V–
NC
V+
OUT
NULL
1
2
3
4
5
6
7
8
OP176
1
2
3
4
5
6
7
8
NULL
–IN
+IN
V–
OP-482
NC
V+
OUT
NULL
OP176
GENERAL DESCRIPTION
The OP176 is a low noise, high output drive op amp that
features the Butler Amplifier front-end. This new front-end
design combines both bipolar and JFET transistors to attain
amplifiers with the accuracy and low noise performance of
bipolar transistors, and the speed and sound quality of JFETs.
Total Harmonic Distortion plus Noise equals previous audio
amplifiers, but at much lower supply currents.
Improved dc performance is also provided with bias and offset
currents greatly reduced over purely bipolar designs. Input
offset voltage is guaranteed at 1 mV and is typically less than
200
μ
V. This allows the OP176 to be used in many dc coupled
or summing applications without the need for special selections
or the added noise of additional offset adjustment circuitry.
The output is capable of driving 600
loads to 10 V rms while
maintaining low distortion. THD + Noise at 3 V rms is a low
0.0006%.
The OP176 is specified over the extended industrial (–40
°
C to
+85
°
C) temperature range. OP176s are available in both plastic
DIP and SO-8 packages. SO-8 packages are available in 2500
piece reels. Many audio amplifiers are not offered in SO-8
surface mount packages for a variety of reasons, however, the
OP176 was designed so that it would offer full performance in
surface mount packaging.
*Protected by U.S. Patent No. 5101126.
Simplified Schematic
RB4
RB3
QB5
RB5
QB6
RB7
RB6
QB7
J1
R4
Q9
Q10
J2
Q2
Q1
Z2
Q6
Q5
CCB
CF
QS1
RS1
R5
6
RS2
QS2
R3
Q3
Q4
QS3
QB9
Q8
Q11
Q7
CC2
4
QB8
R2L
R2P1
R2A
R2P2
R2S
5
R1P2
1
R1P1
R1L
R1A
R1S
QB3
Z1
QB1
JB1
QB4
CB1
QB2
RB1
RB2
CC1
3
2
7
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