OPERATIONAL AMPLIFIER. PA45 Datasheet

PA45 AMPLIFIER. Datasheet pdf. Equivalent

Part PA45
Description HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
Feature HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER PA45 M I C R O T E C H N O L O G Y HTTP://WWW.APEXMICROTE.
Manufacture ETC
Datasheet
Download PA45 Datasheet



PA45
MICROTECHNOLOGY
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
PA45
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE OPERATION—150V
• HIGH SLEW RATE—27V/µs
• HIGH POWER—5A, 85W DISSIPATION
APPLICATIONS
• MAGNETIC DEFLECTION
• PA AUDIO
• MOTOR DRIVE
• NOISE CANCELLATION
DESCRIPTION
The PA45 is a high power monolithic MOSFET operational
amplifier that achieves performance levels unavailable even in
many hybrid amplifier designs. Inputs are protected from
excessive common mode and differential mode voltages as
well as static discharge. The safe operating area (SOA) has no
second breakdown limitations and can be observed with all
type loads by choosing an appropriate current limiting resistor.
External compensation provides the user flexibility in choosing
optimum gain and bandwidth for the application.
This circuit utilizes a beryllia (BeO) substrate to minimize
thermal resistance. Ultrasonically bonded aluminum wires
provide reliable interconnections at all operating tempera-
tures. The 8-pin TO-3 package is hermetically sealed and
electrically isolated. The use of compressible isolation wash-
ers and/or improper mounting torque will void the product
warranty.
EQUIVALENT SCHEMATIC
PATENTED
TYPICAL APPLICATION
+80
RC CC
3
VI
42
7 8 RCL
RI
PA45
51
6
–20
CF
RD
RF
YOKE
±2.5A 7µSec Retrace
Horizontal Deflection Coil Amplifiers
RS
Horizontal deflection amplifiers require both high speed and
low distortion. The speed at which current can be changed in a
deflection coil is a function of the voltage available from the op
amp. In this application an 80 volt power supply is used for the
retrace polarity to provide a 7 µSec retrace time, half of which is
required for amplifier slewing. This circuit can perform 15.75
KHz deflection in up to 50µH coils at up to 5A p-p.
3
+VS
D1
Q24
Q3
D2
D4
D3
–IN D5
5
Q11
Q12
4
+IN
Q20 Q21
Q8
CC1
2
Q13
7 CC2
–VS D7
6
EXTERNAL CONNECTIONS
Q2
Q5 Q6
Q9
Q7 OUTPUT
DRIVE
Q10 8
1
Q14 Q15 CURRENT
SENSE
Q16
Q17
Q19
+VS
CC1
2
3
CURRENT
SENSE
1
OUTPUT
+IN 4
CC
TOP VIEW
R CL
RC 5
–IN
8
6
–VS
7
CC2
OUTPUT
DRIVE
CC IS NPO RATED
FOR FULL SUPPLY VOLTAGE.
PHASE
COMPENSATION
Gain
CC
RC
10 10pF 1K
1 68pF 1K
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com



PA45
PA45
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –VS
OUTPUT CURRENT, continuous within SOA
POWER DISSIPATION, continuous @ TC = 25°C
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder – 10 sec
TEMPERATURE, junction
TEMPERATURE, storage
TEMPERATURE RANGE, powered (case)
150V
5A
85W
±16 V
±VS
300°C
150°C
–65 to +150°C
–55 to +125°C
SPECIFICATIONS
PARAMETER
TEST CONDITIONS1
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs supply
OFFSET VOLTAGE, vs time
BIAS CURRENT, initial
BIAS CURRENT, vs supply
OFFSET CURRENT, initial
INPUT IMPEDANCE, DC
INPUT CAPACITANCE
COMMON MODE, voltage range
COMMON MODE REJECTION, DC
NOISE, broad band
Full temperature range
10kHz BW, RS = 1K
GAIN
OPEN LOOP at 15Hz
GAIN BANDWIDTH PRODUCT @ 1MHz
POWER BANDWIDTH
PHASE MARGIN
RL = 500, CC = 10pF
CC = 10pF, 130V p-p, RL = 8
Full temp range, CC = 68pF, RL = 10
OUTPUT
VOLTAGE SWING
CURRENT, continuous
SETTLING TIME to .1%
SLEW RATE
CAPACITIVE LOAD
RESISTANCE , no load
IO = 5A
10V step, AV = –10
CC = 10pF, RL = 8
AV = +1, CC = 68pF
RCL = 0
POWER SUPPLY
VOLTAGE3
CURRENT, quiescent
See Note 3
THERMAL2
RESISTANCE, AC junction to case
RESISTANCE, DC junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
F > 60Hz
F < 60Hz
Full temperature range
Meets full range specifications
MIN
±VS–10
90
94
±VS–10
5
10
±15
–25
TYP
5
10
8
20
1011
5
106
10
106
4.5
66
60
±VS–8
2
27
150
±50
30
30
MAX
10
50
15
2
100
2
200
±75
50
1.3
1.5
+85
UNITS
mV
µV/°C
µV/V
µV kh
pA
pA/V
pA
pF
V
dB
µV RMS
dB
MHz
kHz
°
V
A
µs
V/µs
nF
V
mA
°C/W
°C/W
°C/W
°C
NOTES: 1.
2.
3.
Unless otherwise noted TC = 25°C, CC = 10pF, RC = 1K. DC input specifications are ± value given. Power supply voltage is
typical rating.
Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation
to achieve high MTTF. For guidance, refer to heatsink data sheet.
Derate maximum supply voltage .5 V/°C below case temperature of 25°C. No derating is needed above TC = 25°C.
CAUTION
The PA45 is constructed from MOSFET transistors. ESD handling procedures must be observed.
The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or
subject to temperatures in excess of 850°C to avoid generating toxic fumes.
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739





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