PA61A

更新时间： 2024-11-09 05:59:27

品牌	Logo	应用领域
凌云 - CIRRUS		运算放大器局域网
页数	文件大小	规格书
5页	317K
描述
POWER OPERATIONAL AMPLIFIERS

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中文翻译

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数据手册

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PA61A 数据手册

PA61 • PA61A

P r o d u c t I n n o v a t i o n F r o m

108&3ꢀ01&3"5*0/"-ꢀ".1-*'*&34

FEATURES

•ꢀWIDEꢀSUPPLYꢀRANGEꢀ—ꢀ±1ꢁꢀtoꢀ±±45

•ꢀHIGHꢀOUTPUTꢀCURRENTꢀ—ꢀ±1ꢁAꢀPeak

•ꢀLOWꢀCOSTꢀ—ꢀClassꢀ“C”ꢀoutputꢀstage

•ꢀLOWꢀQUIESCENTꢀCURRENTꢀ—ꢀ3mA

APPLICATIONS

•ꢀPROGRAMMABLEꢀPOWERꢀSUPPLY

•ꢀMOTOR/SYNCROꢀDRI5ER

•ꢀ5AL5EꢀANDꢀACTUATORꢀCONTROL

•ꢀDCꢀORꢀACꢀPOWERꢀREGULATOR

•ꢀFIXEDꢀFREQUENCYꢀPOWERꢀOSCILLATOR

8-PINꢀTO-3

PACKAGEꢀSTYLEꢀCE

3_'ꢃꢄ

ꢄ

4&/4&ꢄ)*

ꢀꢁꢂ7

3_$-ꢀꢄ

ꢄ

065

ꢃꢆ7

%"$

3_*/ꢃ

3_*/ꢂ

3_8ꢄ

ꢄ

DESCRIPTION

1"ꢅꢃ

The PA61 and PA61A are high output current operational

ampliﬁers designed to drive resistive, inductive and capaci-

tive loads. Their complementary emitter follower output stage

is the simple class C type and optimized for low frequency

applications where crossover distortion is not critical. These

ampliﬁers are not recommended for audio, transducer or

deﬂection coil drive circuits above 1kHz or when distortion is

critical. The safe operating area (SOA) is fully speciﬁed and

can be observed for all operating conditions by selection of

user programmable current limiting resistors. Both ampliﬁers

are internally compensated for all gain settings. For continu-

ous operation under load, mounting on a heatsink of proper

rating is recommended.

This hybrid circuit utilizes thick ﬁlm conductors, ceramic

capacitors, and semiconductor chips to maximize reliabil-

ity, minimize size, and give top performance. Ultrasonically

bonded aluminum wires provide reliable interconnections at

all operating temperatures. The 8-pin TO-3 package is electri-

cally isolated and hermetically sealed. The use of compres-

sible thermal washers and/or improper mounting torque

voids the product warranty. Please see “General Operating

Considerations”.

3_$-mꢄ

ꢄ

-0"%

ꢄ

mꢁꢂ7

^'ꢂꢄ4&/4&ꢄ-0

35/_ꢄꢄ

3_8ꢄ

ꢄ

'*(63&ꢄꢃꢇꢄ130(3".."#-&ꢄ108&3ꢄ4611-:ꢄ

8*5)ꢄ3&.05&ꢄ4&/4*/(

TYPICALꢀAPPLICATION

Due to its high current drive capability, PA61 applications

oftenutilizeremotesensingtocompensateIRdropsinthewir-

ing. The importance of remote sensing increases as accuracy

requirements, output currents, and distance between ampli-

ﬁer and load go up. The circuit above shows wire resistance

from the PA61 to the load and back to the local ground via

the power return line. Without remote sensing, a 7.5A load

current across only 0.05 ohm in each line would produce a

0.75V error at the load.

With the addition of the second ratio matched R_F/R_INpair

and two low current sense wires, IR drops in the power return

line become common mode voltages for which the op amp

has a very high rejection ratio. Voltage drops in the output and

powerreturnwiresareinsidethefeedbackloop. Therefore, as

long as the Power Op Amp has the voltage drive capability to

overcometheIRlosses, accuracyremainsthesame. Applica-

tion Note 7 presents a general discussion of PPS circuits.

EQUI5ALENTꢀSCHEMATIC

ꢃ

ꢇ

2ꢂ"

ꢇ

2ꢂ#

ꢀ

ꢂ

ꢁ

EXTERNALꢀCONNECTIONS

3_$-ꢉ

ꢇ

2ꢃ

2ꢅ

ꢅ

ꢆ

-ꢉ

"ꢂ

ꢂ

ꢉ7₄

ꢃ

065

ꢁ

065165

ꢄ

ꢉ*/

m*/

501ꢀ7*&8

$ꢂ

ꢅ

3_$-m

ꢇ

2ꢄ#

ꢈ

ꢆ

ꢇ

2ꢄ"

ꢇ

-m

m7₄

/ꢊ$ꢊ

ꢄ

Cirrus Logic, Inc.

NOV 2007

PA61Uꢀ ꢀ

ꢀ

http://www.cirrus.com

PA61U rev K

12 3 4 5

中文翻译

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与PA61A相关器件

型号	品牌	获取价格	描述	数据表
PA61ACE	CIRRUS	获取价格	Operational Amplifier, 1 Func, 4000uV Offset-Max, MBFM8, ROHS COMPLIANT, HERMETIC SEALED,
PA61CE	CIRRUS	获取价格	Operational Amplifier, 1 Func, 6000uV Offset-Max, MBFM8, ROHS COMPLIANT, HERMETIC SEALED,
PA61M	CIRRUS	获取价格	Table 4 Group A Inspection
PA61M	APEX	获取价格	TABLE 4 GROUP A INSPECTION
PA61M/883	CIRRUS	获取价格	Table 4 Group A Inspection
PA61Q	ETC	获取价格	Voltage-Feedback Operational Amplifier
PA61功率放大器	ETC	获取价格
PA62	APEX	获取价格	HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS
PA6203	UTC	获取价格	1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER
PA6203_15	UTC	获取价格	1.25-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

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