參數(shù)資料
型號(hào)： PA95
廠商： Electronic Theatre Controls, Inc.
英文描述： HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
中文描述： 高壓功率運(yùn)算放大器
文件頁(yè)數(shù)： 1/4頁(yè)
文件大小： 62K
代理商： PA95
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
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 amplifier
designed as a low cost solution for driving continuous 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 appropriate current limiting resistor. The
MOSFET output stage is biased AB for linear operation.
External compensation provides flexibility in choosing band-
width and slew rate for the application. APEX’s Power SIP04
package uses a minimum of board space allowing for high
density circuit boards.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATION
Piezo positioning may be applied to the focusing of seg-
mented mirror systems. The composite mirror may be com-
posed of hundreds of elements, each requiring focusing under
computer control. In such complex systems the PA95 reduces
the costs of power supplies and cooling with its advantages of
low cost and low quiescent power consumption while increas-
ing circuit density with the SIP package.
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
M I C R O T E C H N O L O G Y
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
PA95
F
R
PA95
IN
R
PIEZO DRIVE
S
–
V
S
+V
OUT
V
COMPUTER
FOCUS
COMMAND
VOLTAGE
CL
R
1
2
10
8
7
12
EXTERNAL CONNECTIONS
PACKAGE SIP04
Q1
Q2
R1 R2
C1
12
+V
S
R3
Q3
CC1
CC2
Q6
Q5
R5
R8
2
1
R9
Q15
R11
10
R12
Q16
Q12
Q8
R4
R7
7
8
6
4
Q4
ILIM
OUT
Q14
R10
Q13
Q11
–
IN
+IN
–
V
S
R6
PHASE COMPENSATION
GAIN
C
C
≥
10
4.7pF
R
LIM
=I
LIM
1
2
4
6
7
8
10
12
*
*
*
.01
μ
F or greater ceramic power supply bypassing required.
–
IN
+IN
CC1
CC2 OUT I
lim
–
Vs
+Vs
C
c
R
LIM
PATENT PENDING
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