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參數資料
| 型號： | PA73 |
| 英文描述： | Voltage-Feedback Operational Amplifier |
| 中文描述： | 電壓反饋運算放大器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 60K |
| 代理商： | PA73 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
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 condi-
tions by selection of user programmable current limit resistors.
These amplifiers are internally compensated for all gain set-
tings. 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
CL+
+V
+IN
–
IN
–
V
N.C.
CL
–
OUT
S
S
TOP VIEW
R
CL+
R
CL
–
OUTPUT
1
2
3
4
5
6
7
8
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
24V
.33
3W
–
30V
+6V
C
F
R
IN
PA01
R
F
F/V
OPTO
PULSE
GEN.
R
CL
–
.33
3W
R
CL+
V
IN
0/
–
5V
M
0/+5V
1N4148
UNSYMMETRICAL SUPPLIES FOR EFFICIENCY
3
4
5
6
2
1
8
A1
D1
Q1
Q4
Q3
Q5
C1
Q2A
Q2B
Q6B
Q6A
*
*
*
*
*
*
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
POWER OPERATIONAL AMPLIFIERS
PA01 PA73
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PA7375 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:2 x 35W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| PA73M | 功能描述:運算放大器 - 運放 Linear OpAmp 60V 5A "M" Grade RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| PA73M/883 | 功能描述:運算放大器 - 運放 Linear OpAmp 60V 5A "M" Grade RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| PA73Q | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| PA74 | 功能描述:運算放大器 - 運放 Dual Linear Op Amp RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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