PA241 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – High Voltage Power Operational Amplifiers

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FEATURES
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE OPERATION—350V
• LOW QUIESCENT CURRENT TYP.—2.2mA
• NO SECOND BREAKDOWN
• HIGH OUTPUT CURRENT—120mA PEAK
• AVAILABLE IN DIE FORM—CPA241
APPLICATIONS
8-PIN TO-3
PACKAGE STYLE CE
24-PIN PSOP
PACKAGE STYLE DF
10-PIN SIP
PACKAGE STYLE DW
• PIEZO ELECTRIC POSITIONING
• ELECTROSTATIC TRANSDUCER & DEFLECTION
• DEFORMABLE MIRROR FOCUSING
• BIOCHEMISTRY STIMULATORS
• COMPUTER TO VACUUM TUBE INTERFACE
DESCRIPTION
The PA241 is a high voltage monolithic MOSFET operational
amplifier which achieves performance features previously
found only in hybrid designs while increasing reliability. Inputs
are protected from excessive common mode and differential
mode voltages. The safe operating area (SOA) has no second
breakdown limitation 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 PA241CE is packaged in a hermetically sealed 8-pin
TO-3 package. The metal case of the PA241CE is isolated in
excess of full supply voltage.
The PA241DF is packaged in a 24 pin PSOP (JEDEC MO-
166) package. The metal heat slug of the PA241DF is isolated
in excess of full supply voltage.
The PA241DW is packaged in Apex’s hermetic ceramic SIP
package. The alumina ceramic isolates the die in excess of
full supply voltage.
EQUIVALENT SCHEMATIC
+VS
CC1
CC2
+IN
ILIM
-IN
OUT
TYPICAL APPLICATION
Ref: APPLICATION NOTE 20: "Bridge Mode Operation of Power Amplifiers"
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LOW COST 660V p-p
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PIEZO DRIVE
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Two PA241 amplifiers operated as a bridge driver for a piezo
transducer provides a low cost 660 volt total drive capability.
The R_N C_N 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.
EXTERNAL CONNECTIONS
PA241CE
R_CL
C_C
C_C1 3
2 ^CC²
1 _ILIM
OUT 4
TOP VIEW
5
–IN ₆
+IN
8
7
+V_S
–V_S
PA241DW
1 2 3 4 5 6 7 8 9 10
NC NC -V_S +V_S I_LIM C_C2 C_C1 OUT
C_C
-IN +IN
R_CL
For CC values, see graph on page 4.
Note: CC must be rated for full supply
voltage.
PA241DF
NC
1
NC
NC
NC
-IN
NC
+IN
NC
NC
NC
NC
-VS
24
NC
NC
NC
OUT
NC
COMP
NC
C_C
COMP
R_CL
NC
ILIM
NC
+VS
NOTE: PA241CE Recommended mounting torque is 4-7
-VS
in•lbs (.45 -.79 N•m)
CAUTION: The use of compressible, thermally conductive
insulators may void warranty.
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE [phone] • FAX [phone] • ORDERS [phone] • EMAIL [e-mail]
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