PA243DF

PA243DF Datasheet


The PA243 is a dual high voltage monolithic MOSFET operational amplifier achieving performance features previously found only in hybrid designs while increasing reliability. This approach provides a cost-effective solution to applications where multiple amplifiers are required. Inputs are protected from excessive common mode and differential mode voltages. The safe operating area SOA has no secondary breakdown limitations and can be observed with all type loads by choosing an appropriate current limiting resistor. External compensation provides the user flexibility in choosing optimum gain and bandwidth for the application.

Part Datasheet
PA243DF PA243DF PA243DF (pdf)
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PAP2A42433

High Voltage Power Operational Amplifier
• RoHS COMPLIANT
• SURFACE MOUNT PACKAGE
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE
• LOW QUIESCENT CURRENT
• NO SECOND BREAKDOWN
• HIGH OUTPUT mA PEAK
• TELEPHONE RING GENERATOR
• PIEZO ELECTRIC POSITIONING
• ELECTROSTATIC TRANSDUCER & DEFLECTION
• DEFORMABLE MIRROR FOCUSING

The PA243 is a dual high voltage monolithic MOSFET operational amplifier achieving performance features previously found only in hybrid designs while increasing reliability. This approach provides a cost-effective solution to applications where multiple amplifiers are required. Inputs are protected from excessive common mode and differential mode voltages. The safe operating area SOA has no secondary breakdown limitations and can be observed with all type loads by choosing an appropriate current limiting resistor. External compensation provides the user flexibility in choosing optimum gain and bandwidth for the application.

The PA243DF is packaged in a 24 pin PSOP JEDEC MO-166 package. The heatslug of the PA243DF package is isolated in excess of full supply voltage.
+175
20R +175
10pF
10pF

PA243 R CL

R CL PA243

PIEZO
47 TRANSDUCER 47

Low Cost 660v p-p Piezo Drive

A single PA243 amplifier operates as a bridge driver for a piezo transducer providing a low cost 660 volt total drive capability. The RN CN network serves to raise the apparent gain of A2 at high frequencies. If RN is set equal to R the amplifiers can be compensated identically and will have matching bandwidths. See application note 20 for more details.
24-pin PSOP

PACKAGE STYLE DF

EQUIVALENT SCHEMATIC one of two channels

Q8 D4

Q3 Q5 Q6

Q10 Q9

Q4 ILIM

D2 Q11

Q15 D5

EXTERNAL CONNECTIONS
+Vsa

COMPa

COMPa

OUTa
-INb
+INb
-Vsb
-Vsa
+INa
-INa

OUTb

COMPb

COMPb
+Vsb
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Datasheet ID: PA243DF 523245