PA93_10 Datasheet, PDF (1/6 Pages) Cirrus Logic – High Voltage Power Operational Amplifiers

®
P r o d u_Pc t_AI₉n ₃n o v a t i o n F r o m
PAP9A933
High Voltage Power Operational Amplifiers
FEATURES
♦ HIGH VOLTAGE — 400V (±200V)
♦ LOW QUIESCENT CURRENT — 10mA
♦ HIGH OUTPUT CURRENT — 8A
♦ PROGRAMMABLE CURRENT LIMIT
APPLICATIONS
♦ PIEZOELECTRIC POSITIONING
♦ HIGH VOLTAGE INSTRUMENTATION
♦ ELECTROSTATIC TRANSDUCERS
♦ PROGRAMMABLE POWER SUPPLIES UP
TO 390V
DESCRIPTION
The PA93 is a high voltage, low quiescent current
MOSFET operational amplifier designed as a low cost
solution for driving continuous output currents up to 8A
and pulse currents up to 14A. The safe operating area
(SOA) has no second breakdown limitations and can
be observed for all type loads by choosing an appropri-
ate current limiting resistor. The MOSFET output stage
is biased AB for linear operation. External compensa-
tion provides flexibility in choosing bandwidth and slew
rate for the application. Apex Precision Power’s Power
SIP package uses a minimum of board space allowing
for high density circuit boards. The Power SIP package
is electrically isolated.
EQUIVALENT SCHEMATIC
+V_{S R1A}
R1B
C1 R3
Q1
Q2
Q6
Q5
Q14A
CC2
CC1
Q14B
–IN ^R5
R8
R6
R9
+IN
Q15
R11
–V_S
Q3
R4
Q4
Q8
Q11
ILIM
R7
OUT
Q13
Q12
Q18
R15
Q16
R12
EXTERNAL CONNECTIONS
1 2 3 4 5 6 7 8 9 10 11 12
Rc
–IN +IN
I_Q
(See text.)
Cc
R_CL
*
*
–Vs
TO LOAD
AND FEEDBACK
+Vs
* Bypassing required.
PATENTED
12-pin SIP
PACKAGE
STYLE DP
Formed leads available
See package style EE
PA93_wU_{ww.cirrus.com}
Copyright © Cirrus Logic, Inc. 2010
(All Rights Reserved)
MAR 2010₁
APEX − PA93UREVJ