P r o d u c t I n n o v a t i o n F r o m

PA92

PA92U

1

FEATURES

♦ HIGH VOLTAGE — 400V (±200V)

♦ LOW QUIESCENT CURRENT — 10mA

♦ HIGH OUTPUT CURRENT — 4A

♦PROGRAMMABLECURRENTLIMIT

APPLICATIONS

♦PIEZOELECTRICPOSITIONING

♦HIGHVOLTAGEINSTRUMENTATION

♦ELECTROSTATICTRANSDUCERS

♦PROGRAMMABLEPOWERSUPPLIESUP

TO 390V

Q1

Q2

R1 R2

C1

R3

Q3

CC1

12

11

1

4

5

9

6

10

2

7

8

CC2

3

Q6

Q5

R5

R8

R9

Q15

R11

R12

Q16

Q12

Q8

R4

R7

Q4

ILIM

OUT

Q17

R10

Q13

Q11

–IN

+IN

R6

Q14B

Q14A

High Voltage Power Operational Amplifiers

PA92

P r o d u c t I n n o v a t i o n F r o m

DESCRIPTION

The PA92 is a high voltage, low quiescent current

MOSFEToperationalamplifierdesignedasalowcost

solutionfordrivingcontinuousoutputcurrentsupto4A

andpulsecurrentsupto7A.Thesafeoperatingarea

(SOA)hasnosecondbreakdownlimitationsandcan

beobservedforalltypeloadsbychoosinganappropri-

atecurrentlimitingresistor.TheMOSFEToutputstage

isbiasedABforlinearoperation.Externalcompensa-

tionprovidesflexibilityinchoosingbandwidthandslew

ratefortheapplication.ApexPrecisionPower’sPower

SIPpackageusesaminimumofboardspaceallowing

forhighdensitycircuitboards. ThePowerSIPpackage

iselectricallyisolated.

EQUIVALENT SCHEMATIC

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

JUN 2009

APEX − PA92UREVK