PA91 Datasheet, PDF (1/6 Pages) Cirrus Logic – HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS

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PAP9A911
High Voltage Power Operational Amplifiers
FEATURES
♦ HIGH VOLTAGE — 450V (±225V)
♦ LOW QUIESCENT CURRENT — 10mA
♦ HIGH OUTPUT CURRENT — 200mA
♦ PROGRAMMABLE CURRENT LIMIT
♦ HIGH SLEW RATE — 300V/µs
APPLICATIONS
♦ PIEZOELECTRIC POSITIONING
♦ HIGH VOLTAGE INSTRUMENTATION
♦ ELECTROSTATIC TRANSDUCERS
♦ PROGRAMMABLE POWER SUPPLIES UP
TO 440V
DESCRIPTION
The PA91 is a high voltage, low quiescent current MOS-
FET operational amplifier designed as a low cost solu-
tion for driving continuous output currents up to 200mA
and pulse currents up to 350mA. The safe operating
area (SOA) has no second breakdown limitations and
can be observed for all type loads by choosing an ap-
propriate current limiting resistor. The MOSFET output
stage is biased AB for linear operation. External com-
pensation provides flexibility in choosing bandwidth
and slew rate for the application. APEX’s Power SIP
package uses a minimum of board space allowing for
high density circuit boards. The 12-pin PowerSIP pack-
age is electrically isolated.
EQUIVALENT SCHEMATIC


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PA91U
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2008
(All Rights Reserved)
AUG 2008
APEX − PA91REVG