PA93 Apex Microtechnology

PA93 RoHS High Voltage Power Operational Amplifiers COMPLIANT 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 appro- priate current limiting resistor. The MOSFET output stage is biased AB for linear operation. External compen- sation provides flexibility in choosing bandwidth and slew rate for the application. Apex Microtechnologys Power SIP uses a minimum of board space allowing for high density circuit boards. The Power SIP is electri- cally isolated. Figure 1: Equivalent Schematic +V S R1A C1 R3 R1B Q3 Q1 Q2 R4 Q4 Q6 CC2 I CL Q5 Q8 CC1 R7 Q14A Q14B Q11 R6 R5 IN OUT Q13 R8 R9 Q12 Q18 R15 +IN Q16 Q15 R11 R12 V S Apex Microtechnology Inc. Sep 2020 www.apexanalog.com All rights reserved PA93U Rev VPA93 TYPICAL CONNECTIONS Figure 2: Typical Connections R F 100k +V S * 100nF R C C C R F +V S V OUT CC1 + 1k CC2 PA93 CL -V S R L R CL -V S * Use 10F per Amp of Output Current. 100nF * ** Connect in one point ** 2 PA93U Rev V