P r o d u c t I n n o v a t i o n F r o m
P r o d u c t I n n o v a t i o n F r o m
PA93/27
PA93/27
High Voltage Power Operational Amplifiers
FEATURES
DESCRIPTION
TheꢀPA93/27ꢀisꢀaꢀhighꢀvoltage,ꢀlowꢀquiescentꢀcurrentꢀ
MOSFETꢀoperationalꢀamplifierꢀdesignedꢀasꢀaꢀlowꢀcostꢀ
solutionꢀforꢀdrivingꢀcontinuousꢀoutputꢀcurrentsꢀupꢀtoꢀ8Aꢀ
andꢀpulseꢀcurrentsꢀupꢀtoꢀ14A.ꢀTheꢀsafeꢀoperatingꢀareaꢀ
(SOA)ꢀhasꢀnoꢀsecondꢀbreakdownꢀlimitationsꢀandꢀcanꢀ
beꢀobservedꢀforꢀallꢀtypeꢀloadsꢀbyꢀchoosingꢀanꢀappropri-
ateꢀcurrentꢀlimitingꢀresistor.ꢀTheꢀMOSFETꢀoutputꢀstageꢀ
isꢀbiasedꢀABꢀforꢀlinearꢀoperation.ꢀExternalꢀcompensa-
tionꢀprovidesꢀflexibilityꢀinꢀchoosingꢀbandwidthꢀandꢀslewꢀ
rateꢀ forꢀ theꢀ application.ꢀAPEX’sꢀ Powerꢀ SIPꢀ packageꢀ
usesꢀaꢀminimumꢀofꢀboardꢀspaceꢀallowingꢀforꢀhighꢀden-
sityꢀcircuitꢀboards.ꢀTheꢀPowerꢀSIPꢀpackageꢀisꢀelectri-
callyꢀisolated.
♦ꢀHIGHꢀVOLTAGEꢀ—ꢀ400Vꢀ(±200V)
♦ꢀLOWꢀQUIESCENTꢀCURRENTꢀ—ꢀ10mAꢀ
♦ꢀHIGHꢀOUTPUTꢀCURRENTꢀ—ꢀ8Aꢀ
♦ꢀPROGRAMMABLEꢀCURRENTꢀLIMIT
APPLICATIONS
♦ꢀPIEZOELECTRICꢀPOSITIONING
♦ꢀHIGHꢀVOLTAGEꢀINSTRUMENTATION
♦ꢀELECTROSTATICꢀTRANSDUCERS
♦ꢀPROGRAMMABLEꢀPOWERꢀSUPPLIESꢀUPꢀ
TOꢀ390V
EQUIVALENT SCHEMATIC
+VS
R1A
R3
C1
R1B
Q3
R4
Q4
Q1
Q2
Q6
CC2
ILIM
Q5
Q14A
Q8
CC1
Q14B
R7
Q11
R6
R5
–IN
OUT
Q13
Q12
R8
R9
Q18
R15
+IN
–VS
Q16
R12
Q15
R11
Copyright © Cirrus Logic, Inc. 2010
(All Rights Reserved)
MAR 2010
1
PA93/27U
www.cirrus.com
APEX - PA93-27UREVD