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HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER

PA91

M I C R O T E C H N O L O G Y

HTTP://WWW.APEXMICROTECH.COM

(800) 546-APEX

(800) 546-2739

FEATURES

鈥?/div>

HIGH VOLTAGE 鈥?450V (鹵225V)

LOW QUIESCENT CURRENT 鈥?10mA

HIGH OUTPUT CURRENT 鈥?200mA

PROGRAMMABLE CURRENT LIMIT

HIGH SLEW RATE 鈥?300V/碌s

APPLICATIONS

鈥?/div>

PIEZOELECTRIC POSITIONING

HIGH VOLTAGE INSTRUMENTATION

ELECTROSTATIC TRANSDUCERS

PROGRAMMABLE POWER SUPPLIES UP TO 440V

TYPICAL APPLICATION

R

F

+V

S

DESCRIPTION

The PA91 is a high voltage, low quiescent current MOSFET

operational amplifier designed for driving continuous output

currents up to 200mA and pulse currents up to 350mA. The

safe operating area (SOA) has no second breakdown limita-

tions and can be observed for all type loads by choosing an

appropriate current limiting resistor. The MOSFET output

stage is biased AB for linear operation. External compensation

provides flexibility in choosing bandwidth and slew rate for the

application. APEX鈥檚 Power SIP package uses a minimum of

board space allowing for high density circuit boards.

R

IN

1

11,12

PIEZO DRIVE

PA91

6

V

OUT

2

COMPUTER

FOCUS

COMMAND

VOLTAGE

9,10

7,8

R

CL

鈥揤

S

LOW POWER, PIEZOELECTRIC POSITIONING

EQUIVALENT SCHEMATIC

12

11

+V

S

R1 R2

C1

R3

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 PA91 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.

Q1

Q6

Q5

Q2

5

CC2

Q3

R4

Q4

ILIM

9

Q8

Q11

R7

10

6

OUT

Q12

3

I

Q

Q16

Q13

PHASE COMPENSATION

GAIN

鈮?

鈮?0

Cc*

68pF

10pF

4.7pF

NONE

Rc

100鈩?/div>

0鈩?/div>

4

CC1

1

鈥揑N

R5

R8

R9

R6

*Cc To be rated for the full supply voltage

+V to 鈥揤s. Use NPO ceramic (COG) type.

EXTERNAL CONNECTIONS

Q14

R10

1

2

3

4

5

6

7

8

9

Package: SIP03

10

11

12

2

+IN

Q15

Rc

Cc

R

CL

R11

鈥揤

S

7

8

R12

鈥揑N

+IN

*

鈥揤s

+Vs

I

Q

(See text.)

TO LOAD

AND FEEDBACK

* Bypassing required.

APEX MICROTECHNOLOGY CORPORATION

鈥?TELEPHONE (520) 690-8600 鈥?FAX (520) 888-3329 鈥?ORDERS (520) 690-8601 鈥?EMAIL prodlit@apexmicrotech.com

產(chǎn)品培訓(xùn)模塊
Driving High Voltage Piezo Actuators
標(biāo)準(zhǔn)包裝
1
類(lèi)別
集成電路 (IC)
家庭
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
系列
Apex Precision Power®
放大器類(lèi)型
功率
電路數(shù)
1
輸出類(lèi)型
-
轉(zhuǎn)換速率
300 V/µs
增益帶寬積
100MHz
-3db帶寬
-
電流 - 輸入偏壓
200pA
電壓 - 輸入偏移
500µV
電流 - 電源
10mA
電流 - 輸出 / 通道
200mA
電壓 - 電源，單路/雙路(±)
80 V ~ 450 V，±40 V ~ 225 V
工作溫度
-25°C ~ 85°C
安裝類(lèi)型
通孔
封裝/外殼
12-SIP
供應(yīng)商設(shè)備封裝
12-SIP
包裝
管件
配用
598-1458-ND - KIT EVALUATION PA90 PA91 PA98
其它名稱(chēng)
598-1331

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