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參數(shù)資料
| 型號： | PA02 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | POWER OPERATIONAL AMPLIFIERS |
| 中文描述： | 功耗運(yùn)算放大器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 58K |
| 代理商： | PA02 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
FEATURES
HIGH POWER BANDWIDTH — 350kHz
HIGH SLEW RATE — 20V/
μ
s
FAST SETTLING TIME — 600ns
LOW CROSSOVER DISTORTION — Class A/B
LOW INTERNAL LOSSES — 1.2V at 2A
HIGH OUTPUT CURRENT —
±
5A PEAK
LOW INPUT BIAS CURRENT — FET Input
ISOLATED CASE — 300 VDC
APPLICATIONS
MOTOR, VALVE AND ACTUATOR CONTROL
MAGNETIC DEFLECTION CIRCUITS UP TO 5A
POWER TRANSDUCERS UP TO 350 kHz
AUDIO AMPLIFIERS UP TO 30W RMS
DESCRIPTION
The PA02 and PA02A are wideband, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. Their complementary “collector output”
stage can swing close to the supply rails and is protected
against inductive kickback. For optimum linearity, the output
stage is biased for class A/B operation. The safe operating
area (SOA) can be observed for all operating conditions by
selection of user programmable, current limiting resistors
(down to 10mA). Both amplifiers are internally compensated
but are not recommended for use as unity gain followers. For
continuous operation under load, mounting on a heatsink of
proper rating is recommended.
These hybrid integrated circuits utilize 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.
Isolation washers are not recommended. The use of com-
pressible thermal washers and/or improper mounting torque
will void the product warranty. Please see “General Operat-
ing Considerations”.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATION
Vehicular Sound System Power Stage
When system voltages are low and power is at a premium,
the PA02 is a natural choice. The circuit above utilizes not only
the feature of low internal loss of the PA02, but also its very low
distortion level to implement a crystal clear audio amplifier
suitable even for airborne applications. This circuit uses AC
coupling of both the input signal and the gain circuit to render
DC voltage across the speaker insignificant. The resistor and
capacitor across the inputs form a stability enhancement
network. The 0.27 ohm current limit resistors provide protec-
tion in the event of an output short circuit.
EXTERNAL CONNECTIONS
16K
100K
R
CL+
R
CL–
.27
.27
3.2
16W
–12
+12
.47μF
.47μF
16K
.001μF
PA02
IN
1K
LOW INTERNAL LOSS MAXIMIZES EFFICIENCY
R
CL+
R
CL–
TOP VIEW
1
2
3
4
5
6
7
8
CL–
–V
S
+IN
–IN
OUT
OUT
+V
S
CL+
2
6
5
7
1
3
4
8
R2
R3
R1
R5
R4
R8
R9
R10
R11
R12
R13
R14
R15
R6
R7
Q1
Q8
Q5
Q4
Q3
Q6
Q2
Q7
A1
D1
D2
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
PA02 PA02A
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