PA42A Apex Microtechnology, PA42A Datasheet

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PA42A

Manufacturer Part Number
PA42A
Description
(PA41 / PA42) HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS
Manufacturer
Apex Microtechnology
Datasheet
(1)
(2)
FEATURES
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE OPERATION—350V
• LOW QUIESCENT CURRENT—2mA
• NO SECOND BREAKDOWN
• HIGH OUTPUT CURRENT—120 mA PEAK
• AVAILABLE IN DIE FORM—PA41DIE
APPLICATIONS
• PIEZO ELECTRIC POSITIONING
• ELECTROSTATIC TRANSDUCER & DEFLECTION
• DEFORMABLE MIRROR FOCUSING
• BIOCHEMISTRY STIMULATORS
• COMPUTER TO VACUUM TUBE INTERFACE
DESCRIPTION
tional amplifiers achieving performance features previously
found only in hybrid designs while increasing reliability. Inputs
are protected from excessive common mode and differential
mode voltages. 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.
circuitry is isolated from the case by an aluminum nitride (AlN)
substrate.
package.
EQUIVALENT SCHEMATIC
M I C R O T E C H N O L O G Y
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
–IN
+IN
The PA41/42 are high voltage monolithic MOSFET opera-
The PA41 is packaged in a hermetically sealed TO-3 and all
The PA42 is packaged in APEX’s hermetic ceramic SIP10
5
6
D2
Q4
Q1
Q11
D3
D4
Q12
Q5
D5
(1)
5
PA41 PIN NUMBER
PA42 PIN NUMBER
(8)
(9)
COMP
COMP
D1
2
3
Q13
Q6
Q8
H T T P : / / W W W . A P E X M I C R O T E C H . C O M
Q2
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS
Q7
PA41/PA42 • PA41A/PA42A
Q9
Q10
Q3
Q14
OUT
+V
I
–V
(5)
8
LIM
1
4
7
S
S
(6)
(7)
(10)
TYPICAL APPLICATION
piezo transducer provides a low cost 660 volt total drive capa-
bility. The R
at high frequencies. If R
compensated identically and will have matching bandwidths.
EXTERNAL CONNECTIONS
PA41
PA42
NOTE: PA41 Recommended mounting torque is 4-7 in•lbs
CAUTION: The use of compressible, thermally conductive
OUT
Two PA41/42 amplifiers operated as a bridge driver for a
COMP
–IN
V
4
5
R
IN
R
C
+IN
(.45 -.79 N•m)
3
6
–IN
( 8 0 0 ) 5 4 6 - A P E X
R
TOP VIEW
1
+175
–175
N
PA41/42
CL
insulators may void warranty.
C
–V
A1
20R
N
S
+IN
2
2.2K
network serves to raise the apparent gain of A2
2
7
C
COMP
C
100
330pF
NC
10pF
+V
LOW COST 660V p-p
R
1
3
180
8
CL
S
N
I
PIEZO DRIVE
LIM
is set equal to R the amplifiers can be
NC
TRANSDUCER
4
100
C
330pF
R
–V
PIEZO
S
S
TOP VIEW
S
5
( 8 0 0 ) 5 4 6 - 2 7 3 9
C , C
FOR FULL SUPPLY VOLTAGE.
R
+V
330pf
Gain
S
CL
100
6
COMPENSATION
S
1
10
30
R
C
10pF
R
=
180
330pF
I
S
S
LIM
100
CL
C
I
ARE NPO RATED
7
3
LIM
PHASE
2.2K
PA41/42
3.3pF
20R
20R
18pF
10pF
C
8
A2
+175
C
C
–175
R
C
C
R
C
CL
9
C
C
C
2.2K
2.2K
2.2K
R
10
C
OUT
Rn
Cn

Related parts for PA42A

PA42A Summary of contents

Page 1

... PA41 PIN NUMBER (1) PA42 PIN NUMBER APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS PA41/PA42 • PA41A/PA42A TYPICAL APPLICATION Two PA41/42 amplifiers operated as a bridge driver for a piezo transducer provides a low cost 660 volt total drive capa- bility ...

Page 2

... PA41 RESISTANCE, junction to air PA42 RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * The specification for PA41A/PA42A is identical to the specification for PA41/PA42 in applicable column to the left. 1. Unless otherwise noted T typical rating. 2. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF ...

Page 3

... FREQUENCY, F (Hz) APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com PA41/PA42 • PA41A/PA42A CURRENT LIMIT 140 130 120 –I 110 LIM +I LIM 100 90 80 125 – ...

Page 4

... PA41/PA42 • PA41A/PA42A GENERAL Please read Application Note 1 "General Operating Consid- erations" which covers stability, supplies, heat sinking, mount- ing, current limit, SOA interpretation, and specification inter- pretation. Visit www.apexmicrotech.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit ...

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