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參數(shù)資料
| 型號： | PA73 |
| 廠商： | APEX MICROTECHNOLOGY CORP |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | OP-AMP, 10000 uV OFFSET-MAX, 1 MHz BAND WIDTH, MBFM8 |
| 封裝： | HERMETIC SEALED, TO-3, 8 PIN |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 266K |
| 代理商： | PA73 |
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
1
FEATURES
LOW COST, ECONOMY MODEL — PA01
SECOND SOURCEABLE — PA73
HIGH OUTPUT CURRENT — Up to ±5A PEAK
EXCELLENT LINEARITY — PA01
HIGH SUPPLY VOLTAGE — Up to ±30V
ISOLATED CASE — 300V
APPLICATIONS
MOTOR, VALVE AND ACTUATOR CONTROL
MAGNETIC DEFLECTION CIRCUITS UP TO 4A
POWER TRANSDUCERS UP TO 20kHz
TEMPERATURE CONTROL UP TO 180W
PROGRAMMABLE POWER SUPPLIES UP TO 48V
AUDIO AMPLIFIERS UP TO 50W RMS
DESCRIPTION
The PA01 and PA73 are high voltage, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. For optimum linearity, the PA01 has a
class A/B output stage. The PA73 has a simple class C output
stage (see Note 1) to reduce cost for motor control and other
applications where crossover distortion is not critical and to
provide interchangeability with type 3573 amplifiers. The
safe operating area (SOA) can be observed for all operating
conditions by selection of user programmable current limit
resistors. These amplifiers are internally compensated for all
gain settings. For continuous operation under load, a heatsink
of proper rating is recommended.
This hybrid integrated circuit utilizes thick film (cermet)
resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable inter-
connections at all operating temperatures. The 8-pin TO-3
package is hermetically sealed and electrically isolated. The
use of compressible thermal washers and/or improper mount-
ing torque will void the product warranty. Please see “General
Operating Considerations”.
EXTERNAL CONNECTIONS
NOTE 1: * Indicates not used in PA73. Open base of Q2A
connected to output of A1.
TYPICAL APPLICATION
Unidirectional Optical Speed Control
The pulse output of a non-contact optical sensor drives a
voltage-to-frequency converter which generates feedback for
the op amp. With the loop closed in this manner, the op amp
corrects for any variations in the speed due to changing load.
Because of operation in only one direction, an unsymmetrical
supply is used to maximize efficiency of both power op amp
and power supply. High speed diodes at the input protect the
op amp from commutator noise which may be generated by
the motor.
EQUIVALENT SCHEMATIC
8-pin TO-3
PACKAGE STYLE CE
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