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PA243 数据表(PDF) 1 Page - Cirrus Logic |
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PA243 数据表(HTML) 1 Page - Cirrus Logic |
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1 / 6 page  P r o d u c t I n n o v a t i o n F r o m PA243 PA243U 1 PA243 24-pin pSOp pACKAGE STYLE DF EQUiVALEnT SCHEMATiC (one of two channels) EXTERnAL COnnECTiOnS For C C values, see graph on page 3. Note: C C must be rated for full supply voltage. * Supply bypassing required. See general Operating Con- siderations. FEATURES •RoHSCOMPLIANT •SURFACEMOUNTPACKAGE •MONOLITHICMOSTECHNOLOGY •LOWCOST •HIGHVOLTAGEOPERATION—350V •LOWQUIESCENTCURRENTTYP.—2.2mA •NOSECONDBREAKDOWN •HIGHOUTPUTCURRENT—120mAPEAK AppLiCATiOnS •TELEPHONERINGGENERATOR •PIEZOELECTRICPOSITIONING •ELECTROSTATICTRANSDUCER&DEFLECTION •DEFORMABLEMIRRORFOCUSING DESCRipTiOn The PA243 is a dual high voltage monolithic MOSFET op- erational 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 volt- ages. 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. TYpiCAL AppLiCATiOn 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 R N CN network serves to raise the apparent gain of A2 at high frequencies. If R N is set equal to R the amplifiers can be compensated identically and will have matching bandwidths. See application note 20 for more details. A PA243 B PA243 20R PIEZO TRANSDUCER 20R RN 20R CN R VIN –175 +175 –175 +175 R CL R CL 47 47 10pF 10pF ILIM OUT -IN +IN +VS -VS CC2 CC1 Q2 D4 Q11 Q7 Q1 Q15 Q12 Q5 Q9 Q14 Q13 Q10 Q6 Q4 Q3 Q8 D2 D3 D1 D5 CC * * * * CC RCL RCL +Vsa NC La COMPa COMPa OUTa NC -INb +INb -Vsb -Vsa NC NC +INa -INa NC OUTb COMPb COMPb ILb NC +Vsb 24 1 + - A B High Voltage Power Operational Amplifier PA243 P r o d u c t I n n o v a t i o n F r o m Copyright © Cirrus Logic, Inc. 2009 (All Rights Reserved) http://www.cirrus.com MAY 2009 APEX − PA243UREVG |
类似零件编号 - PA243 |
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类似说明 - PA243 |
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