PA88A

更新时间： 2024-09-25 05:59:27

品牌	Logo	应用领域
凌云 - CIRRUS		运算放大器高压
页数	文件大小	规格书
5页	202K
描述
High Voltage Power Operational Amplifiers

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中文翻译

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数据手册

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PA88A 数据手册

PA88 • PA88A

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PA88 • PA88A

PA88, PA88A

High Voltage Power Operational Amplifiers

FEATURES

•ꢀHIGHꢀVOLTAGEꢀ—ꢀ450Vꢀ(±225V)

•ꢀLOWꢀQUIESCENTꢀCURRENTꢀ—ꢀ2mA

•ꢀHIGHꢀOUTPUTꢀCURRENTꢀ—ꢀ100mAꢀ

•ꢀPROGRAMMABLEꢀCURRENTꢀLIMIT

•ꢀLOWꢀBIASꢀCURRENTꢀ—ꢀFETꢀInput

PATENTED

APPLICATIONS

8-PINꢀTO-3

PACKAGEꢀSTYLEꢀCE

•ꢀPIEZOELECTRICꢀPOSITIONING

•ꢀHIGHꢀVOLTAGEꢀINSTRUMENTATION

•ꢀELECTROSTATICꢀTRANSDUCERS

TYPICALꢀAPPLICATION

R _F

•ꢀPROGRAMMABLEꢀPOWERꢀSUPPLIESꢀUPꢀTOꢀ440V

+V_S

DESCRIPTION

C_C

The PA88 is a high voltage, low quiescent current MOSFET

operationalampliﬁerdesignedforoutputcurrentsupto100mA.

Output voltages can swing up to ±±15V with a dual supply

and up to +440 volts with a single supply. The safe operating

area (SOA) has no second breakdown limitations and can be

observedwithalltypesofloadsbychoosinganappropriatecur-

rent limiting resistor.High accuracy is achieved with a cascode

input circuit conﬁguration.All internal biasing is referenced to a

bootstrapped zener-MOSFET current source.As a result, the

PA88 features an unprecedented supply range and excellent

supply rejection. The MOSFET output stage is biased on for

linearoperation.Externalcompensationprovidesuserﬂexibility.

This hybrid circuit utilizes beryllia (BeO) substrates, thick

ﬁlm resistors, ceramic capacitors and semiconductor chips to

maximize reliability, minimize size and give top performance.

Ultrasonically bonded aluminum wires provide reliable inter-

connections at all operating temperatures. The 8-pin TO-3

package is hermetically sealed and electrically isolated. The

useofcompressiblethermalisolationwashersand/orimproper

mounting torque will void the product warranty. Please see

“General Operating Considerations”.

R _IN

PIEZO DRIVE

V_OUT

PA88

COMPUTER

FOCUS

COMMAND

VOLTAGE

–V_S

LOW POWER, PIEZOELECTRIC POSITIONING

Piezo positioning may be applied to the focusing of

segmented mirror systems. The composite mirror may be

composed of hundreds of elements, each requiring focusing

under computer control. In such complex systems the PA88’s

advantage of low quiescent power consumption reduces

the costs of power supplies and cooling, while providing the

interface between the computer and the high voltage drive to

the piezo positioners.

EXTERNALꢀCONNECTIONS

EQUIVALENTꢀSCHEMATIC

PHASE COMPENSATION

+Vs

C_C

R_C

GAIN

100

68pf

33pf

15pf

3.3pf

100W

—

OUT

+IN

–IN

D19

TOP VIEW

COMP

R_CL

Q12

I_LIM

– IN

+ IN

–Vs

Q11

COMP

OUT

C_CRATED FOR FULL

SUPPLY VOLTAGE

Q10B

Q10A

Q17

Q18

Q13

Q16

–V_S

MAY 2009

APEX − PA88UREVN

PA88U

http://www.cirrus.com

12 3 4 5

中文翻译

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与PA88A相关器件

型号	品牌	获取价格	描述	数据表
PA88ACE	CIRRUS	获取价格	Operational Amplifier, 1 Func, 500uV Offset-Max, Hybrid, MBFM8, ROHS COMPLIANT, HERMETIC S
PA88M	ETC	获取价格	Voltage-Feedback Operational Amplifier
PA89	APEX	获取价格	HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS
PA89	CIRRUS	获取价格	High Voltage Power Operational Amplifiers
PA89A	CIRRUS	获取价格	High Voltage Power Operational Amplifiers
PA89A	APEX	获取价格	HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS
PA8SO1-03-3	ETC	获取价格	8, 14 or 16 pin SO socket/ 8, 14 or 16 pin DI
PA8SO1-03-6	ETC	获取价格	8, 14 or 16 pin SO socket/ 8, 14 or 16 pin DI
PA8SO1-2006-3	ETC	获取价格	8-20 Pin SOP socket/8-20 Pin DIP 0.3" or 0.6" plug
PA8SO1-2006-6	ETC	获取价格	8-20 Pin SOP socket/8-20 Pin DIP 0.3" or 0.6" plug

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