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參數(shù)資料
| 型號(hào)： | PA07 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | FET INPUT POWER OPERATIONAL AMPLIFIERS |
| 中文描述： | 場(chǎng)效應(yīng)管輸入功率運(yùn)算放大器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 64K |
| 代理商： | PA07 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
FEATURES
LOW BIAS CURRENT — FET Input
PROTECTED OUTPUT STAGE — Thermal Shutoff
EXCELLENT LINEARITY — Class A/B Output
WIDE SUPPLY RANGE —
±
12V TO
±
50V
HIGH OUTPUT CURRENT —
±
5A Peak
APPLICATIONS
MOTOR, VALVE AND ACTUATOR CONTROL
MAGNETIC DEFLECTION CIRCUITS UP TO 4A
POWER TRANSDUCERS UP TO 100kHz
TEMPERATURE CONTROL UP TO 180W
PROGRAMMABLE POWER SUPPLIES UP TO 90V
AUDIO AMPLIFIERS UP TO 60W RMS
DESCRIPTION
The PA07 is a high voltage, high output current operational
amplifier designed to drive resistive, inductive and capacitive
loads. For optimum linearity, especially at low levels, the
output stage is biased for class A/B operation using a ther-
mistor compensated base-emitter voltage multiplier circuit. A
thermal shutoff circuit protects against overheating and mini-
mizes heatsink requirements for abnormal operating condi-
tions. The safe operating area (SOA) can be observed for all
operating conditions by selection of user programmable cur-
rent limiting resistors. Both amplifiers are internally compen-
sated for all gain settings. For continuous operation under
load, a heatsink of proper rating is recommended.
This hybrid circuit utilizes thick film (cermet) resistors, ce-
ramic capacitors and semiconductor chips to maximize reli-
ability, minimize size and give top performance. Ultrasonically
bonded aluminum wires provide reliable interconnections at all
operating temperatures. The 8-pin TO-3 package is hermeti-
cally sealed and electrically isolated. The use of compressible
washers and/or improper mounting torque will void the product
warranty. Please see “General Operating Considerations”.
EQUIVALENT SCHEMATIC
NOTE: Input offset voltage trim optional. R
T
= 10K
MAX
8-pin TO-3 package
CL+
+V
+IN
–
IN
–
V
BAL
CL
–
OUT
S
S
TOP VIEW
R
CL+
R
CL
–
R
T
R
S
OUTPUT
R
S
= ( V
S
+ +
–
V
S
) R
T
/1.6
1
2
3
4
5
6
7
8
TYPICAL APPLICATION
Position is sensed by the differentially connected photo
diodes, a method that negates the time and temperature
variations of the optical components. Off center positions
produce an error current which is integrated by the op amp
circuit, driving the system back to center position. A momen-
tary switch contact forces the system out of lock and then the
integrating capacitor holds drive level while both diodes are in
a dark state. When the next index point arrives, the lead
network of C1 and R1 optimize system response by reducing
overshoot. The very low bias current of the PA07 augments
performance of the integrator circuit.
EXTERNAL CONNECTIONS
MOTOR
R
CL+
R
CL
–
C
L
C
F
R
L
R
F2
R
F1
+32V
.68
.68
–
32V
+V
–
V
PD1
PD2
LIGHT
V = 28
EMF = 14V
R = 14
PA07
Negates optoelectronic instabilities
Lead network minimizes overshoot
SEQUENTIAL POSITION CONTROL
3
7
5
4
6
2
1
8
Q1
Q2
Q5
Q4
Q3
Q8
Q9
C3
Q12A
Q12B
Q10
Q15
Q18
D2
D3
D1
C2
C4
Q11
Q16
Q19
C1
Q7
Q6A
Q6B
Q17A
Q17B
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
M I C R O T E C H N O L O G Y
FET INPUT POWER OPERATIONAL AMPLIFIERS
PA07 PA07A
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