PA41A Aeroflex Circuit Technology, PA41A Datasheet

PA41A

Manufacturer Part Number

PA41A

Description

High Voltage Power Operational Amplifiers

Manufacturer

Aeroflex Circuit Technology

Datasheet

1.PA41A.pdf (4 pages)

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Download datasheet (111Kb)

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(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

Q11

Q12

(1)

PA41 PIN NUMBER

PA42 PIN NUMBER

(8)

(9)

COMP

Q13

H T T P : / / W W W . A P E X M I C R O T E C H . C O M

HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS

PA41/PA42 • PA41A/PA42A

Q10

Q14

OUT

–V

(5)

LIM

(6)

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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

+IN

(.45 -.79 N•m)

–IN

( 8 0 0 ) 5 4 6 - A P E X

TOP VIEW

+175

–175

PA41/42

insulators may void warranty.

–V

20R

+IN

2.2K

network serves to raise the apparent gain of A2

COMP

100

330pF

10pF

LOW COST 660V p-p

180

PIEZO DRIVE

LIM

is set equal to R the amplifiers can be

TRANSDUCER

100

330pF

–V

PIEZO

TOP VIEW

( 8 0 0 ) 5 4 6 - 2 7 3 9

C , C

FOR FULL SUPPLY VOLTAGE.

330pf

Gain

100

COMPENSATION

10pF

180

330pF

LIM

100

ARE NPO RATED

LIM

PHASE

2.2K

PA41/42

3.3pF

20R

18pF

10pF

+175

–175

2.2K

OUT

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