PA95_17 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – High Voltage Power Operational Amplifiers

PA95
PAP9A955
High Voltage Power Operational Amplifiers
FEATURES
♦ HIGH VOLTAGE — 900V (±450V)
♦ LOW QUIESCENT CURRENT — 1.6mA
♦ HIGH OUTPUT CURRENT — 100mA
♦ PROGRAMMABLE CURRENT LIMIT
APPLICATIONS
♦ HIGH VOLTAGE INSTRUMENTATION
♦ PROGRAMMABLE POWER SUPPLIES UP
TO ±430V
♦ MASS SPECTROMETERS
♦ SEMICONDUCTOR MEASUREMENT
EQUIPMENT
DESCRIPTION
The PA95 is a high voltage, MOSFET operational am-
plifier designed as a low cost solution for driving contin-
uous output currents up to 100mA and pulse currents
up to 200mA into capacitive loads. The safe operating
area (SOA) has no second breakdown limitations and
can be observed for all load types 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 Microtechnol-
ogy’s Power SIPpackage uses a minimum of board
space allowing for high density circuit boards. The
Power SIP package is electrically isolated. Isolating
thermal washers (TW13) are recommended to prevent
arcing from pins to heatsink.
EQUIVALENT SCHEMATIC
12
+V_{S R1A R1B}
C2
R3
Q1
Q2
Q6
Q5
Q5A
1
–IN ^R9
R11
6
4 ^CC2
CC1
Q5B
R10
R12
Q3
Q8
Q14
Q21
Q29
R4
Q4
ILIM
8
R7
7
OUT
2
+IN
Q29
Q14
R19
Q30
R20
–V_S
10
EXTERNAL CONNECTIONS
–IN +IN
C_C1
12
4
C_C2 OUT I_LIM
6 78
–Vs
+Vs
10
12
C_C
R_LIM
*
*
* 0.01µF or greater ceramic power supply bypassing required.
R27
PATENTED
8-pin SIP
PACKAGE
STYLE DQ
Formed leads available
See package style EC
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