PA78EU Cirrus Logic Inc, PA78EU Datasheet

PA78EU

Manufacturer Part Number

PA78EU

Description

IC PWR AMP 350V 200MA 12SIP

Manufacturer

Cirrus Logic Inc

Series

Apex Precision Power™r

Datasheets

1.EK61.pdf (10 pages)

2.PA78DK.pdf (6 pages)

Specifications of PA78EU

Amplifier Type

Power

Number Of Circuits

Slew Rate

350 V/µs

Gain Bandwidth Product

1MHz

Current - Input Bias

8.5pA

Voltage - Input Offset

8000µV

Current - Supply

700µA

Current - Output / Channel

150mA

Voltage - Supply, Single/dual (±)

20 V ~ 350 V, ±10 V ~ 175 V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Through Hole

Package / Case

12-SIP

For Use With

598-1398 - KIT EVALUATION PA78/PA79598-1395 - EVALUATION KIT FOR PA78

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

-3db Bandwidth

Other names

598-1440
PA78EU

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

PA78EU

Manufacturer:

MOT

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

PA78EU

Manufacturer:

APEX

Quantity:

20 000

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FEATURES

♦ A Unique (Patent Pending) Technique for Very

♦ Over 350 V/µs Slew Rate

♦ Wide Supply Voltage

♦ Output Current – 150mA Cont.; 200mA Pk

♦ Up to 23 Watt Dissipation Capability

♦ Over 200 kHz Power Bandwidth

APPLICATIONS

♦ Piezoelectric Positioning and Actuation

♦ Electrostatic Deflection

♦ Deformable Mirror Actuators

♦ Chemical and Biological Stimulators

PA78U

Low Quiescent Current

♦ Single Supply: 20V To 350V

♦ Split Supplies: ± 10V To ± 175V

http://www.cirrus.com

PACKAGE STYLE DK

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

20–Pin PSOP

Power Operational Amplifier

V+

V–

CLASS AB INPUT STAGE

ACTIVE LOAD

BLOCK DIAGRAM

VOUT+

VOUT–

DESCRIPTION

The PA78 is a high voltage, high speed, low idle cur-

rent op-amp capable of delivering up to 200mA peak

output current. Due to the dynamic biasing of the input

stage, it can achieve slew rates over 350V/µs, while

only consuming less than 1mA of idle current. External

phase compensation allows great flexibility for the user

to optimize bandwidth and stability.

The output stage is protected with user selected cur-

rent limit resistor. For the selection of this current limit-

ing resistor, pay close attention to the SOA curves for

each package type. Proper heatsinking is required for

maximum reliability.

CURRENT

BUFFER

LIMIT

PACKAGE STYLE EU

LEAD FORM EW

VOUT

12–Pin SIP

APEX − PA78UREVB

PA78

JUL 2009

PA78

Related parts for PA78EU

PA78EU Summary of contents

PA78 ChARACTERISTICS AND SPECIFICATIONS ABSOLUTE MAxIMUM RATINGS Parameter SUPPLY VOLTAGE − OUTPUT CURRENT, peak (200ms), within SOA POWER DISSIPATION, internal, DC POWER DISSIPATION, internal, DC INPUT VOLTAGE, differential INPUT VOLTAGE, common mode TEMPERATURE, pin solder, 10s ...

Page 3

... DC input specifications are ± value given, power supply voltage C ExTERNAL CONNECTIONS EU Package - – OUT LIM OUT LIM TO LOAD Min Typ Max ±10 ±150 ±175 0.2 0.7 2.5 5.5 12.21 8.3 9.1 25 19.1 -40 125 PA78EU 12-pin SIP -IN + 33pF PA78 Units V mA º ...

Page 4

... DUTY CYCLE MAX 0.1 0.01 100 1000 10 SUPPLY TO OUTPUT DIFFERENTIAL ( 100K DEFLECTION INK C PLATE C DROPLETS R C -15V POWER DERATING 100 CASE TEMPERATURE, T COMMON MODE REJECTION 140 120 100 100 1K 200 FREQUENCY (Hz) PA78EU SOA 100 1000 - V ( 100 125 (°C) C 10K 100K PA78U ...

Page 5

SMALL SIGNAL OPEN LOOP GAIN 100 R = OPEN 0pF 3.3K, C ...

Page 6

PA78 SR+/SR- (25% - 75%) 1000 SR- 800 600 400 200 PEAK-TO-PEAK INPUT VOLTAGE SR+/SR- (25% -75%) 1000 SR+ 800 600 400 200 PEAK-TO-PEAK INPUT VOLTAGE SR+/SR- (25% ...

Page 7

PULSE RESPONSE vs. CAP LOAD 140 120 100 - ...

Page 8

PA78 GENERAL Please read Application note 1 “General operating considerations” which covers stability, power sup- plies, heat sinking, mounting, current limit, SOA inter- pretation, and specification interpretation. Visit www. cirrus.com for design tools that help automate tasks such as calculations ...

Page 9

standby. An increase in the idle current in the output stage of the amplifier will improve phase margin for ...

Page 10

PA78 LAYOUT CONSIDERATIONS The PA78 is built on a dielectrically isolated process and the package tab is therefore not electrically connected to the amplifier. For high speed operation, the package tab should be connected to a stable reference to reduce ...

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